.page-contact {
  --pc-glow: rgba(53, 242, 192, 0.15);
  --pc-warm: rgba(255, 155, 74, 0.12);
  --pc-muted: #6F8598;
  background: var(--ink);
  color: var(--fog);
}

.page-contact .content-wrap {
  max-width: var(--content-max);
  margin: 0 auto;
  padding: 26px 20px 84px;
}

.page-contact .eyebrow {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--mint);
  margin: 0 0 10px;
}

.page-contact h1 {
  font-size: clamp(1.85rem, 5.6vw, 2.95rem);
  line-height: 1.12;
  letter-spacing: -0.03em;
  font-weight: 800;
  margin: 6px 0 18px;
  max-width: 22ch;
}

.page-contact h2 {
  font-size: clamp(1.32rem, 3.8vw, 1.95rem);
  line-height: 1.24;
  letter-spacing: -0.02em;
  font-weight: 800;
  margin: 0 0 14px;
  color: var(--fog);
}

.page-contact .breadcrumbs {
  margin-bottom: 22px;
}

/* 首屏 */
.page-contact .pc-hero {
  padding: 4px 0 34px;
}

.page-contact .pc-lede {
  color: var(--cool);
  font-size: 1.0625rem;
  line-height: 1.78;
  max-width: 64ch;
  margin: 0;
}

.page-contact .pc-jump {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  list-style: none;
  margin: 24px 0 0;
  padding: 0;
}

.page-contact .pc-jump a {
  display: inline-block;
  padding: 7px 14px;
  border: 1px solid var(--line);
  border-radius: var(--radius-pill);
  color: var(--cool);
  font-size: 13px;
  text-decoration: none;
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease), background 0.2s var(--ease);
}

.page-contact .pc-jump a:hover,
.page-contact .pc-jump a:focus-visible {
  color: var(--ink);
  background: var(--mint);
  border-color: var(--mint);
}

.page-contact a:focus-visible,
.page-contact button:focus-visible,
.page-contact summary:focus-visible {
  outline: 2px solid var(--mint);
  outline-offset: 2px;
}

/* 布局骨架 */
.page-contact .contact-shell {
  display: grid;
  gap: 26px;
  margin-top: 6px;
}

/* 渠道面板 */
.page-contact .channel-card {
  position: relative;
  background: var(--graph);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: 0 0 0 1px rgba(5, 10, 18, 0.5), 0 18px 40px rgba(2, 6, 12, 0.45);
}

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

.page-contact .channel-visual::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(10, 19, 32, 0.2), var(--graph) 92%);
}

.page-contact .channel-visual img {
  display: block;
  width: 100%;
  height: 132px;
  object-fit: cover;
  filter: saturate(0.85) brightness(0.85);
}

.page-contact .channel-body {
  padding: 4px 20px 22px;
}

.page-contact .channel-head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  border-bottom: 1px solid var(--line);
  padding-bottom: 12px;
  margin-bottom: 16px;
}

.page-contact .channel-head h2 {
  font-size: 1.05rem;
  letter-spacing: 0.02em;
  margin: 0;
}

.page-contact .channel-state {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.06em;
  color: var(--mint-soft);
}

.page-contact .channel-list {
  margin: 0;
  display: grid;
  gap: 16px;
}

.page-contact .channel-row {
  display: grid;
  gap: 6px;
}

.page-contact .contact-label {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.12em;
  color: var(--pc-muted);
  margin: 0;
}

.page-contact .channel-value {
  margin: 0;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
}

.page-contact .contact-value {
  font-size: 0.95rem;
  line-height: 1.5;
  color: var(--fog);
  word-break: break-word;
}

.page-contact .channel-value .mono {
  font-family: var(--font-mono);
  letter-spacing: -0.01em;
}

.page-contact .copy-btn {
  font-family: var(--font-body);
  font-size: 12px;
  line-height: 1;
  padding: 6px 12px;
  border-radius: var(--radius-pill);
  border: 1px solid var(--line);
  background: transparent;
  color: var(--mint-soft);
  cursor: pointer;
  transition: background 0.2s var(--ease), border-color 0.2s var(--ease), color 0.2s var(--ease);
}

.page-contact .copy-btn:hover {
  border-color: var(--mint);
  color: var(--mint);
  background: rgba(53, 242, 192, 0.08);
}

.page-contact .channel-note {
  margin: 20px 0 0;
  padding-top: 16px;
  border-top: 1px dashed var(--line);
  font-size: 13.5px;
  line-height: 1.72;
  color: var(--cool);
}

/* 右侧内容流 */
.page-contact .contact-stream {
  display: grid;
  gap: 44px;
}

.page-contact .stream-block {
  scroll-margin-top: 90px;
}

.page-contact .stream-lede {
  margin: 0;
  color: var(--cool);
  font-size: 1rem;
  line-height: 1.78;
}

.page-contact .pc-band {
  margin: 22px 0 0;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  padding: 14px 18px;
  border-left: 4px solid var(--orange);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  background: linear-gradient(90deg, var(--pc-warm), rgba(255, 155, 74, 0) 70%);
}

.page-contact .pc-band p {
  margin: 0;
  font-size: 0.94rem;
  line-height: 1.65;
  color: var(--fog);
}

.page-contact .pc-figure {
  margin: 24px 0 0;
}

.page-contact .pc-figure img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  border-radius: var(--radius-md);
  border: 1px solid var(--line);
  object-fit: cover;
}

.page-contact .media-caption {
  margin-top: 10px;
  font-size: 12.5px;
  line-height: 1.6;
  color: var(--pc-muted);
}

.page-contact .pc-rhythm {
  margin: 24px 0 0;
  padding: 16px 12px 8px;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: var(--char);
}

.page-contact .pc-rhythm-svg {
  display: block;
  width: 100%;
  height: auto;
}

.page-contact .pc-facts {
  display: grid;
  gap: 12px;
  margin-top: 20px;
}

.page-contact .pc-fact {
  display: grid;
  gap: 4px;
  padding: 14px 16px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: rgba(26, 36, 48, 0.6);
}

.page-contact .pc-fact-num {
  font-family: var(--font-mono);
  font-size: 1.05rem;
  color: var(--mint);
  letter-spacing: -0.01em;
}

.page-contact .pc-fact-label {
  font-size: 12.5px;
  line-height: 1.6;
  color: var(--cool);
}

/* 合作折叠项 */
.page-contact .coop-item {
  margin-top: 12px;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: var(--graph);
  transition: border-color 0.2s var(--ease);
}

.page-contact .coop-item[open] {
  border-color: rgba(53, 242, 192, 0.42);
}

.page-contact .coop-item > summary {
  list-style: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 16px 18px;
}

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

.page-contact .coop-title {
  font-weight: 800;
  font-size: 1rem;
  letter-spacing: -0.01em;
  color: var(--fog);
}

.page-contact .coop-sign {
  flex: none;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  border: 1px solid var(--line);
  display: grid;
  place-items: center;
  font-family: var(--font-mono);
  font-size: 14px;
  line-height: 1;
  color: var(--mint);
}

.page-contact .sign-minus {
  display: none;
}

.page-contact .coop-item[open] .coop-sign {
  background: var(--mint);
  border-color: var(--mint);
  color: var(--ink-deep);
}

.page-contact .coop-item[open] .sign-plus {
  display: none;
}

.page-contact .coop-item[open] .sign-minus {
  display: block;
}

.page-contact .coop-body {
  padding: 0 18px 18px;
  border-top: 1px solid var(--line);
  margin-top: 0;
  padding-top: 14px;
}

.page-contact .coop-body p {
  margin: 0 0 10px;
  font-size: 0.95rem;
  line-height: 1.76;
  color: var(--cool);
}

.page-contact .coop-meta {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.02em;
  color: var(--orange);
  margin: 0;
}

.page-contact .coop-hint {
  margin: 18px 0 0;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--pc-muted);
}

/* 自助排查块 */
.page-contact .stream-block--soft {
  padding: 24px 20px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--line);
  background:
    radial-gradient(circle at 12% 0%, var(--pc-glow), transparent 62%),
    var(--char);
}

.page-contact .pc-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 22px;
}

/* 响应说明列表 */
.page-contact .response-list {
  list-style: none;
  margin: 18px 0 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--line);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.page-contact .response-item {
  display: grid;
  gap: 6px;
  padding: 18px;
  background: var(--graph);
}

.page-contact .response-key {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.14em;
  color: var(--orange);
}

.page-contact .response-item p {
  margin: 0;
  font-size: 0.95rem;
  line-height: 1.74;
  color: var(--cool);
}

/* 收束区 */
.page-contact .mail-cta {
  margin-top: 68px;
  padding: 48px 22px;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  text-align: center;
  background:
    radial-gradient(circle at 50% 0%, var(--pc-glow), transparent 66%),
    var(--char);
}

.page-contact .mail-cta h2 {
  max-width: 20ch;
  margin-left: auto;
  margin-right: auto;
}

.page-contact .mail-hint {
  margin: 0 auto;
  max-width: 46ch;
  font-size: 0.95rem;
  line-height: 1.72;
  color: var(--cool);
}

.page-contact .mail-line {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 14px;
  margin-top: 26px;
}

.page-contact .mail-address {
  font-family: var(--font-mono);
  font-size: clamp(0.95rem, 3.6vw, 1.5rem);
  letter-spacing: -0.01em;
  color: var(--mint);
  word-break: break-all;
}

.page-contact .copy-btn--lg {
  font-size: 13px;
  padding: 9px 18px;
  border-color: var(--mint-deep);
  color: var(--mint-soft);
}

.page-contact .mail-note {
  margin: 18px 0 0;
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--pc-muted);
}

.page-contact .mail-note a {
  color: var(--mint-soft);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* 备案条 */
.page-contact .legal-strip {
  margin-top: 56px;
  padding-top: 24px;
  border-top: 1px solid var(--line);
  display: grid;
  gap: 12px;
}

.page-contact .legal-line {
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.06em;
  color: var(--cool);
  margin: 0;
}

.page-contact .legal-text {
  margin: 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--pc-muted);
  max-width: 60ch;
}

.page-contact .legal-links {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 8px 20px;
  margin: 0;
  padding: 0;
}

.page-contact .legal-links a {
  font-size: 13px;
  color: var(--mint-soft);
  text-decoration: none;
  border-bottom: 1px solid transparent;
}

.page-contact .legal-links a:hover {
  border-bottom-color: var(--mint);
}

/* 平板与桌面 */
@media (min-width: 640px) {
  .page-contact .pc-facts {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-contact .channel-visual img {
    height: 156px;
  }

  .page-contact .response-item {
    grid-template-columns: 76px minmax(0, 1fr);
    align-items: start;
    gap: 14px;
  }

  .page-contact .mail-cta {
    padding: 62px 40px;
  }
}

@media (min-width: 960px) {
  .page-contact .content-wrap {
    padding: 34px 32px 104px;
  }

  .page-contact .contact-shell {
    grid-template-columns: minmax(280px, 352px) minmax(0, 1fr);
    gap: 44px;
    align-items: start;
  }

  .page-contact .channel-card {
    position: sticky;
    top: 96px;
  }

  .page-contact .contact-stream {
    gap: 56px;
  }

  .page-contact .stream-block--soft {
    padding: 30px 28px;
  }

  .page-contact .mail-cta {
    margin-top: 84px;
  }

  .page-contact .legal-strip {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
  }

  .page-contact .legal-links {
    grid-column: 2;
    grid-row: 1 / span 2;
    justify-content: flex-end;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .pc-jump a,
  .page-contact .copy-btn,
  .page-contact .coop-item {
    transition: none;
  }
}
<<<END>>>