.page-contact {
  --c-gap: clamp(16px, 2.6vw, 30px);
  --c-rule: rgba(201, 162, 39, 0.28);
  --c-rule-soft: rgba(243, 232, 206, 0.1);
  --c-text-soft: rgba(243, 232, 206, 0.82);
  --c-text-dim: rgba(243, 232, 206, 0.66);
  --c-paper-bg: linear-gradient(172deg, rgba(29, 64, 52, 0.86), rgba(14, 33, 27, 0.92));
}

/* ---------- 页面头 ---------- */
.page-contact .c-head {
  padding-block: 26px 8px;
}

.page-contact .breadcrumbs {
  margin-bottom: 6px;
}

.page-contact .c-head-grid {
  display: grid;
  gap: var(--c-gap);
  margin-top: 22px;
}

.page-contact .c-head h1 {
  margin: 12px 0 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(30px, 7.4vw, 56px);
  line-height: 1.08;
  letter-spacing: -0.022em;
  color: var(--paper);
  max-width: 18ch;
}

.page-contact .c-head .lede {
  margin-top: 18px;
  max-width: 40ch;
}

.page-contact .c-desk {
  position: relative;
  padding: 20px 20px 22px;
  background: var(--c-paper-bg);
  border: 1px solid var(--line);
  box-shadow: 9px 9px 0 -2px rgba(201, 162, 39, 0.14);
}

.page-contact .c-desk::after {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  width: 42px;
  height: 2px;
  background: var(--cyan);
}

.page-contact .c-desk-list {
  list-style: none;
  margin: 14px 0 0;
  padding: 0;
  display: grid;
  gap: 9px;
}

.page-contact .c-desk-list li {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 6px 14px;
  padding-bottom: 9px;
  border-bottom: 1px dotted var(--c-rule);
}

.page-contact .c-desk-list li:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.page-contact .c-desk-k {
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--muted);
}

.page-contact .c-desk-v {
  font-family: var(--font-mono);
  font-size: 14px;
  line-height: 1.5;
  color: var(--gold-bright);
  text-align: right;
  word-break: break-all;
}

/* ---------- 分流窗口 ---------- */
.page-contact .c-route {
  padding-block: clamp(38px, 5.4vw, 72px) clamp(30px, 4vw, 54px);
}

.page-contact .c-route-note {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--muted);
  max-width: 32ch;
}

.page-contact .c-tabs {
  margin-top: clamp(20px, 3vw, 34px);
}

.page-contact .tablist {
  display: flex;
  gap: 0;
  overflow-x: auto;
  scrollbar-width: none;
  border-bottom: 1px solid var(--c-rule);
}

.page-contact .tablist::-webkit-scrollbar {
  display: none;
}

.page-contact .tab {
  appearance: none;
  flex: 0 0 auto;
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
  padding: 14px 16px 12px;
  background: transparent;
  border: 0;
  border-bottom: 2px solid transparent;
  color: var(--muted);
  font-family: var(--font-body);
  font-size: 15px;
  font-weight: 500;
  white-space: nowrap;
  cursor: pointer;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease), background-color var(--dur) var(--ease);
}

.page-contact .tab-idx {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--gold);
}

.page-contact .tab:hover {
  color: var(--paper);
  background-color: rgba(79, 227, 210, 0.06);
}

.page-contact .tab[aria-selected="true"] {
  color: var(--paper);
  border-bottom-color: var(--cyan);
  background: linear-gradient(180deg, rgba(79, 227, 210, 0.12), transparent);
}

.page-contact .tabpanel {
  padding: clamp(20px, 3vw, 32px) 0 clamp(6px, 1.4vw, 12px);
}

.page-contact .tabpanel[hidden] {
  display: none;
}

.page-contact .c-panel-grid {
  display: grid;
  gap: 20px;
}

.page-contact .c-panel-lede {
  margin: 0;
  font-family: var(--font-serif);
  font-size: 17px;
  line-height: 1.88;
  color: var(--paper);
  max-width: 34em;
}

.page-contact .c-need-list {
  list-style: none;
  margin: 12px 0 0;
  padding: 0;
  display: grid;
  gap: 8px;
}

.page-contact .c-need-list li {
  position: relative;
  padding-left: 20px;
  font-size: 15px;
  line-height: 1.72;
  color: var(--c-text-soft);
}

.page-contact .c-need-list li::before {
  content: "";
  position: absolute;
  left: 2px;
  top: 0.72em;
  width: 9px;
  height: 1px;
  background: var(--gold);
}

.page-contact .c-panel-link {
  display: inline-block;
  margin-top: 18px;
  font-size: 14px;
  line-height: 1.6;
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(79, 227, 210, 0.4);
  padding-bottom: 2px;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-contact .c-panel-link:hover {
  color: var(--gold-bright);
  border-bottom-color: rgba(232, 207, 122, 0.6);
}

/* ---------- 联系渠道 ---------- */
.page-contact .c-channels {
  padding-block: clamp(30px, 4.4vw, 56px);
}

.page-contact .c-chan-media {
  margin: 0 0 clamp(20px, 3vw, 32px);
}

.page-contact .c-chan-media img {
  width: 100%;
  height: auto;
  aspect-ratio: 1000 / 460;
  object-fit: cover;
}

.page-contact .c-chan-grid {
  display: grid;
  gap: 14px;
}

.page-contact .c-chan-card {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 20px 20px 22px;
  background: var(--c-paper-bg);
  border: 1px solid var(--c-rule-soft);
  border-top: 2px solid var(--gold);
}

.page-contact .c-chan-card--cyan {
  border-top-color: var(--cyan);
}

.page-contact .c-chan-card--violet {
  border-top-color: var(--violet);
}

.page-contact .c-chan-kicker {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
}

.page-contact .c-chan-name {
  margin: 0;
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: 20px;
  line-height: 1.3;
  color: var(--paper);
}

.page-contact .c-chan-value {
  margin: 0;
  padding: 9px 12px;
  font-family: var(--font-mono);
  font-size: 14px;
  line-height: 1.55;
  color: var(--gold-bright);
  background: rgba(7, 19, 15, 0.66);
  border-left: 2px solid var(--gold);
  word-break: break-word;
  user-select: all;
}

.page-contact .c-chan-card--cyan .c-chan-value {
  color: var(--cyan);
  border-left-color: var(--cyan);
}

.page-contact .c-chan-card--violet .c-chan-value {
  color: var(--paper);
  border-left-color: var(--violet);
}

.page-contact .c-chan-value--plain {
  font-family: var(--font-body);
  font-size: 15px;
  letter-spacing: 0.01em;
}

.page-contact .c-chan-desc {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--c-text-soft);
}

/* ---------- 写信要点 ---------- */
.page-contact .c-write {
  padding-block: clamp(34px, 4.6vw, 64px);
}

.page-contact .c-write-grid {
  display: grid;
  gap: var(--c-gap);
}

.page-contact .c-write-tip {
  margin: 18px 0 0;
  padding-left: 14px;
  border-left: 2px solid var(--orange);
  font-size: 15px;
  line-height: 1.78;
  color: var(--c-text-soft);
  max-width: 36em;
}

.page-contact .c-draft {
  padding: 22px 22px 24px;
  border: 1px solid var(--line);
  background:
    repeating-linear-gradient(180deg, transparent 0, transparent 30px, rgba(243, 232, 206, 0.055) 30px, rgba(243, 232, 206, 0.055) 31px),
    var(--c-paper-bg);
  box-shadow: 10px 10px 0 -2px rgba(201, 162, 39, 0.12);
}

.page-contact .c-draft-list {
  margin: 14px 0 0;
  padding: 0;
}

.page-contact .c-draft-row {
  display: grid;
  grid-template-columns: 62px minmax(0, 1fr);
  gap: 12px;
  align-items: baseline;
  padding: 9px 0;
  border-bottom: 1px dotted var(--c-rule-soft);
}

.page-contact .c-draft-row:last-child {
  border-bottom: 0;
}

.page-contact .c-draft-row dt {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--gold);
}

.page-contact .c-draft-row dd {
  margin: 0;
  font-size: 15px;
  line-height: 1.65;
  color: rgba(243, 232, 206, 0.92);
}

/* ---------- 处理流程 ---------- */
.page-contact .c-flow {
  padding-block: clamp(34px, 4.6vw, 64px);
}

.page-contact .c-flow-grid {
  display: grid;
  gap: clamp(26px, 3.4vw, 44px);
}

.page-contact .c-steps {
  list-style: none;
  margin: 22px 0 0;
  padding: 0;
}

.page-contact .c-step {
  display: grid;
  grid-template-columns: 40px minmax(0, 1fr);
  gap: 14px;
  padding: 18px 0;
  border-top: 1px solid var(--c-rule-soft);
}

.page-contact .c-step:first-child {
  border-top-color: var(--c-rule);
}

.page-contact .c-step-num {
  font-family: var(--font-mono);
  font-size: 15px;
  letter-spacing: 0.04em;
  color: var(--gold-bright);
  padding-top: 3px;
}

.page-contact .c-step-name {
  margin: 0 0 7px;
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: 19px;
  line-height: 1.3;
  color: var(--paper);
}

.page-contact .c-step-body p {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--c-text-soft);
  max-width: 38em;
}

.page-contact .c-flow-media {
  margin: 0;
}

.page-contact .c-flow-media img {
  width: 100%;
  height: auto;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}

.page-contact .c-stat-row {
  margin-top: 20px;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px 16px;
}

.page-contact .c-stat {
  padding-top: 11px;
  border-top: 1px solid var(--c-rule);
}

.page-contact .c-stat-num {
  display: block;
  font-family: var(--font-mono);
  font-size: 21px;
  line-height: 1.2;
  color: var(--gold-bright);
}

.page-contact .c-stat .stat-label {
  display: block;
  margin-top: 5px;
  font-size: 13px;
  line-height: 1.55;
  color: var(--muted);
}

/* ---------- 收藏路径 ---------- */
.page-contact .c-fav {
  padding-block: clamp(34px, 4.6vw, 64px);
}

.page-contact .c-fav-grid {
  display: grid;
  gap: var(--c-gap);
}

.page-contact .c-fav-note {
  margin: 16px 0 0;
  font-size: 15px;
  line-height: 1.78;
  color: var(--c-text-dim);
  max-width: 38em;
}

.page-contact .c-collect {
  margin-top: 20px;
}

.page-contact .c-fav-card {
  padding: 22px 22px 24px;
  border: 1px solid var(--line);
  background: var(--c-paper-bg);
}

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

.page-contact .c-fav-list li {
  display: grid;
  grid-template-columns: 30px minmax(0, 1fr);
  gap: 10px;
  align-items: baseline;
  padding: 10px 0;
  border-bottom: 1px solid var(--c-rule-soft);
  font-size: 15px;
  line-height: 1.65;
  color: var(--c-text-soft);
}

.page-contact .c-fav-list li:last-child {
  border-bottom: 0;
}

.page-contact .c-fav-idx {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--cyan);
}

.page-contact .c-fav-hint {
  margin: 16px 0 0;
  padding-top: 14px;
  border-top: 1px dotted var(--c-rule);
  font-size: 13.5px;
  line-height: 1.72;
  color: var(--muted);
}

/* ---------- 合作 ---------- */
.page-contact .c-coop {
  padding-block: clamp(34px, 4.6vw, 64px);
}

.page-contact .c-coop-panel {
  padding: clamp(22px, 3.4vw, 40px);
  border: 1px solid var(--line);
  background:
    radial-gradient(120% 90% at 100% 0%, rgba(154, 107, 255, 0.12), transparent 58%),
    linear-gradient(168deg, rgba(29, 64, 52, 0.72), rgba(7, 19, 15, 0.9));
}

.page-contact .c-coop-grid {
  display: grid;
  gap: 22px;
  margin-top: clamp(20px, 3vw, 32px);
}

.page-contact .c-coop-name {
  margin: 0 0 8px;
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: 18px;
  line-height: 1.35;
  color: var(--paper);
  padding-left: 12px;
  border-left: 2px solid var(--violet);
}

.page-contact .c-coop-col p {
  margin: 0;
  font-size: 15px;
  line-height: 1.82;
  color: var(--c-text-soft);
}

.page-contact .c-coop-foot {
  margin: clamp(22px, 3vw, 32px) 0 0;
  padding-top: 16px;
  border-top: 1px solid var(--c-rule);
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--c-text-soft);
}

.page-contact .c-mono {
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--gold-bright);
  word-break: break-all;
  user-select: all;
}

/* ---------- 路径链条 ---------- */
.page-contact .c-chain {
  padding-block: clamp(28px, 4vw, 52px) clamp(48px, 6vw, 84px);
}

.page-contact .c-chain-lead {
  margin: 16px 0 0;
  font-family: var(--font-serif);
  font-size: 17px;
  line-height: 1.85;
  color: var(--c-text-soft);
  max-width: 40em;
}

.page-contact .c-chain-track {
  position: relative;
  margin-top: clamp(24px, 3.4vw, 40px);
}

.page-contact .c-chain-svg {
  position: absolute;
  left: 0;
  right: 0;
  top: 33px;
  width: 100%;
  height: 4px;
  display: none;
}

.page-contact .c-chain-nodes {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 22px;
}

.page-contact .c-chain-node {
  position: relative;
  padding-top: 18px;
  border-top: 1px solid var(--c-rule);
}

.page-contact .c-chain-dot {
  position: absolute;
  top: -5px;
  left: 0;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--gold-bright);
}

.page-contact .c-chain-idx {
  display: block;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--muted);
}

.page-contact .c-chain-node .path-link {
  display: inline-block;
  margin-top: 8px;
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: 18px;
  line-height: 1.4;
  color: var(--paper);
  text-decoration: none;
  border-bottom: 1px solid var(--c-rule);
  padding-bottom: 3px;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-contact .c-chain-node .path-link:hover {
  color: var(--cyan);
  border-bottom-color: var(--cyan);
}

.page-contact .c-chain-node p {
  margin: 10px 0 0;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--c-text-dim);
  max-width: 32em;
}

/* ---------- 响应式 ---------- */
@media (min-width: 620px) {
  .page-contact .c-chan-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

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

@media (min-width: 820px) {
  .page-contact .c-head {
    padding-block: 34px 10px;
  }

  .page-contact .c-head-grid {
    grid-template-columns: minmax(0, 1.3fr) minmax(280px, 0.82fr);
    align-items: end;
    gap: clamp(28px, 4vw, 60px);
  }

  .page-contact .c-desk {
    padding: 24px 24px 26px;
  }

  .page-contact .c-panel-grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: clamp(24px, 4vw, 56px);
    align-items: start;
  }

  .page-contact .c-write-grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr);
    gap: clamp(28px, 4vw, 56px);
    align-items: start;
  }

  .page-contact .c-flow-grid {
    grid-template-columns: minmax(0, 1.45fr) minmax(260px, 0.82fr);
    align-items: start;
  }

  .page-contact .c-fav-grid {
    grid-template-columns: minmax(0, 1.2fr) minmax(280px, 0.85fr);
    align-items: start;
  }

  .page-contact .c-chain-track {
    position: relative;
  }

  .page-contact .c-chain-svg {
    display: block;
  }

  .page-contact .c-chain-nodes {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: clamp(20px, 3vw, 40px);
  }
}

@media (min-width: 1000px) {
  .page-contact .c-chan-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 18px;
  }

  .page-contact .c-coop-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: clamp(22px, 3vw, 34px);
  }

  .page-contact .tab {
    font-size: 16px;
    padding: 16px 22px 14px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .tab,
  .page-contact .c-panel-link,
  .page-contact .c-chain-node .path-link {
    transition: opacity var(--dur) linear;
  }
}
</final>