.page-contact {
  --coop-hair: 1px solid var(--pine);
  --coop-body: rgba(242, 246, 241, .8);
  padding-bottom: 72px;
  overflow-x: hidden;
}

.page-contact .breadcrumb {
  padding: 18px 0 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .04em;
}

.page-contact .breadcrumb ol {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
  color: var(--sage);
}

.page-contact .breadcrumb li + li::before {
  content: "/";
  margin-right: 8px;
  color: var(--pine);
}

.page-contact .breadcrumb a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color 180ms var(--ease);
}

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

/* ---------- 首屏 ---------- */
.page-contact .coop-hero {
  padding: 12px 0 44px;
}

.page-contact .coop-hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 28px;
  align-items: end;
}

.page-contact .coop-dot {
  display: inline-block;
  width: 8px;
  height: 8px;
  margin-right: 10px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 0 4px rgba(43, 240, 196, .16);
  vertical-align: middle;
}

.page-contact .coop-hero-copy h1 {
  margin: 16px 0 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(36px, 8vw, 76px);
  line-height: 1;
  letter-spacing: -.02em;
  color: var(--fog);
}

.page-contact .coop-hero-copy .lede {
  margin: 20px 0 0;
  max-width: 34ch;
  font-size: 16px;
  line-height: 1.8;
  color: var(--coop-body);
}

.page-contact .coop-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

.page-contact .coop-hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 26px;
  margin: 30px 0 0;
  padding: 16px 0 0;
  list-style: none;
  border-top: var(--coop-hair);
  font-size: 13px;
  color: var(--sage);
}

.page-contact .coop-hero-meta .score-num {
  margin-right: 4px;
  font-size: 18px;
  color: var(--volt);
}

.page-contact .coop-hero-media img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
  border-radius: var(--radius-hard);
}

/* ---------- 合作方向 ---------- */
.page-contact .coop-directions {
  padding-top: 36px;
}

.page-contact .coop-split {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 32px;
  margin-top: 26px;
}

.page-contact .coop-row {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  gap: 12px;
  align-items: start;
  padding: 22px 4px 24px;
  border-top: var(--coop-hair);
  border-radius: var(--radius-hard);
  transition: background-color 180ms var(--ease), padding 180ms var(--ease);
}

.page-contact .coop-row:last-child {
  border-bottom: var(--coop-hair);
}

.page-contact .coop-row:hover,
.page-contact .coop-row:focus-within {
  background: var(--pulse);
  padding-left: 16px;
  padding-right: 16px;
}

.page-contact .coop-row-idx {
  padding-top: 6px;
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--pulse-soft);
  transition: color 180ms var(--ease);
}

.page-contact .coop-row-body h3 {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(20px, 3.6vw, 28px);
  line-height: 1.2;
  letter-spacing: -.01em;
  color: var(--fog);
  transition: color 180ms var(--ease);
}

.page-contact .coop-row-body p {
  margin: 0;
  font-size: 14px;
  line-height: 1.78;
  color: var(--coop-body);
  transition: color 180ms var(--ease);
}

.page-contact .coop-row-tags {
  margin-top: 10px !important;
  font-family: var(--font-mono);
  font-size: 11px !important;
  letter-spacing: .04em;
  color: var(--sage) !important;
}

.page-contact .coop-inline-link {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(43, 240, 196, .5);
  transition: border-color 180ms var(--ease);
}

.page-contact .coop-inline-link:hover {
  border-bottom-width: 2px;
  border-bottom-color: var(--cyan);
}

.page-contact .coop-row-arrow {
  align-self: center;
  font-family: var(--font-mono);
  font-size: 20px;
  line-height: 1;
  color: var(--ink);
  opacity: 0;
  transform: translateX(-8px);
  transition: opacity 180ms var(--ease), transform 180ms var(--ease);
}

.page-contact .coop-row:hover .coop-row-arrow,
.page-contact .coop-row:focus-within .coop-row-arrow {
  opacity: 1;
  transform: translateX(0);
}

.page-contact .coop-row:hover h3,
.page-contact .coop-row:hover p,
.page-contact .coop-row:hover .coop-row-idx,
.page-contact .coop-row:hover .coop-row-tags,
.page-contact .coop-row:focus-within h3,
.page-contact .coop-row:focus-within p,
.page-contact .coop-row:focus-within .coop-row-idx,
.page-contact .coop-row:focus-within .coop-row-tags {
  color: var(--ink) !important;
}

.page-contact .coop-row:hover .coop-inline-link,
.page-contact .coop-row:focus-within .coop-inline-link {
  color: var(--ink);
  border-bottom-color: var(--ink);
}

/* ---------- 联络卡 ---------- */
.page-contact .contact-card {
  padding: 26px 22px 24px;
  background: var(--ink-2);
  border: 1px solid var(--cyan);
  border-radius: var(--radius-soft);
  box-shadow: 0 26px 64px rgba(0, 0, 0, .42);
}

.page-contact .contact-kicker {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 20px;
  letter-spacing: -.01em;
  color: var(--mist);
}

.page-contact .contact-lead {
  margin: 10px 0 22px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--sage);
}

.page-contact .contact-fields {
  margin: 0;
  display: grid;
  gap: 14px;
}

.page-contact .contact-field {
  padding-top: 12px;
  border-top: 1px solid var(--pine);
}

.page-contact .contact-field dt {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .16em;
  color: var(--sage);
}

.page-contact .contact-value {
  margin: 6px 0 0;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 16px;
  line-height: 1.4;
  color: var(--fog);
  word-break: break-all;
}

.page-contact .contact-value--soft {
  font-family: var(--font-body);
  font-size: 14px;
  color: var(--mist);
  word-break: normal;
}

.page-contact .copy-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 22px;
}

.page-contact .copy-row .btn {
  flex: 1 1 120px;
}

.page-contact .contact-jump {
  display: inline-block;
  margin-top: 16px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .04em;
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(43, 240, 196, .45);
  transition: border-color 180ms var(--ease);
}

.page-contact .contact-jump:hover {
  border-bottom-width: 2px;
  border-bottom-color: var(--cyan);
}

/* ---------- 流程 ---------- */
.page-contact .coop-process {
  padding-top: 56px;
}

.page-contact .process-list {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 12px;
  margin: 26px 0 0;
  padding: 0;
  list-style: none;
}

.page-contact .process-step {
  background: var(--ink-2);
  border: 1px solid var(--pine);
  border-radius: var(--radius-hard);
  transition: border-color 180ms var(--ease);
}

.page-contact .process-step[open] {
  border-color: var(--pulse);
}

.page-contact .process-step summary {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 17px 18px;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 17px;
  color: var(--fog);
  transition: color 180ms var(--ease);
}

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

.page-contact .process-step summary::after {
  content: "+";
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 17px;
  color: var(--cyan);
}

.page-contact .process-step[open] summary::after {
  content: "−";
  color: var(--pulse);
}

.page-contact .process-step summary:hover {
  color: var(--cyan);
}

.page-contact .process-step summary:focus-visible {
  outline: var(--ring);
  outline-offset: 2px;
}

.page-contact .step-idx {
  font-size: 13px;
  letter-spacing: .08em;
  color: var(--volt);
}

.page-contact .process-step p {
  margin: 0;
  padding: 0 18px 18px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--coop-body);
}

.page-contact .coop-process-media {
  margin: 28px 0 0;
}

.page-contact .coop-process-media img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
  border-radius: var(--radius-hard);
}

/* ---------- 联络渠道 ---------- */
.page-contact .coop-channels {
  padding-top: 56px;
}

.page-contact .channel-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
  margin-top: 26px;
}

.page-contact .channel-card {
  padding: 22px 20px 24px;
  background: var(--ink-2);
  border: 1px solid var(--pine);
  border-top: 3px solid var(--cyan);
  border-radius: var(--radius-hard);
  transition: border-color 180ms var(--ease), background-color 180ms var(--ease);
}

.page-contact .channel-card:hover {
  border-color: var(--cyan);
  background: #0E3227;
}

.page-contact .channel-key {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .18em;
  color: var(--sage);
}

.page-contact .channel-value {
  margin: 10px 0 0;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 17px;
  line-height: 1.4;
  color: var(--fog);
  word-break: break-all;
}

.page-contact .channel-value--addr {
  font-family: var(--font-body);
  font-size: 15px;
  line-height: 1.7;
  word-break: normal;
}

.page-contact .channel-use {
  margin: 12px 0 0;
  font-size: 13px;
  line-height: 1.75;
  color: var(--coop-body);
}

.page-contact .channel-note {
  margin: 20px 0 0;
  padding: 16px 18px;
  max-width: 68ch;
  border-left: 3px solid var(--pulse);
  background: rgba(11, 42, 33, .7);
  border-radius: 0 var(--radius-hard) var(--radius-hard) 0;
  font-size: 13px;
  line-height: 1.8;
  color: var(--coop-body);
}

.page-contact .channel-note a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(43, 240, 196, .5);
}

.page-contact .channel-note a:hover {
  border-bottom-width: 2px;
  border-bottom-color: var(--cyan);
}

/* ---------- 来信建议 ---------- */
.page-contact .coop-letters {
  padding-top: 56px;
}

.page-contact .letter-list {
  margin-top: 22px;
  border-top: var(--coop-hair);
}

.page-contact .letter-item {
  border-bottom: var(--coop-hair);
}

.page-contact .letter-item summary {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 18px 2px;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 17px;
  color: var(--fog);
  transition: color 180ms var(--ease);
}

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

.page-contact .letter-item summary::after {
  content: "+";
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 17px;
  color: var(--cyan);
}

.page-contact .letter-item[open] summary::after {
  content: "−";
  color: var(--pulse);
}

.page-contact .letter-item summary:hover {
  color: var(--pulse-soft);
}

.page-contact .letter-item summary:focus-visible {
  outline: var(--ring);
  outline-offset: 2px;
}

.page-contact .letter-idx {
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--pulse);
}

.page-contact .letter-item p {
  margin: 0 0 20px;
  padding-left: 40px;
  max-width: 62ch;
  font-size: 14px;
  line-height: 1.8;
  color: var(--coop-body);
}

.page-contact .letter-item p a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(43, 240, 196, .5);
}

.page-contact .letter-item p a:hover {
  border-bottom-width: 2px;
  border-bottom-color: var(--cyan);
}

/* ---------- 媒体与内容合作 ---------- */
.page-contact .coop-media {
  padding-top: 56px;
}

.page-contact .coop-media-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 26px;
  align-items: start;
}

.page-contact .coop-media-copy h2 {
  margin: 0 0 16px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(24px, 4.4vw, 34px);
  line-height: 1.2;
  letter-spacing: -.01em;
  color: var(--fog);
}

.page-contact .coop-media-copy .prose {
  margin: 0;
  max-width: 640px;
  font-size: 15px;
  line-height: 1.85;
  color: var(--coop-body);
}

.page-contact .guidance-panel {
  padding: 22px 20px 10px;
  background: var(--ink-2);
  border: 1px solid var(--pine);
  border-radius: var(--radius-soft);
}

.page-contact .guidance-kicker {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .18em;
  color: var(--sage);
}

.page-contact .guidance-links {
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-contact .guidance-links li {
  border-top: 1px solid var(--pine);
}

.page-contact .guidance-links a {
  display: block;
  padding: 13px 0;
  text-decoration: none;
  color: var(--fog);
  transition: color 180ms var(--ease), padding-left 180ms var(--ease);
}

.page-contact .guidance-links a span:first-child {
  display: block;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 15px;
  letter-spacing: -.01em;
}

.page-contact .guidance-sub {
  display: block;
  margin-top: 4px;
  font-family: var(--font-body);
  font-size: 12px;
  font-weight: 400;
  letter-spacing: 0;
  color: var(--sage);
}

.page-contact .guidance-links a:hover {
  color: var(--cyan);
  padding-left: 8px;
}

.page-contact .guidance-links a:focus-visible {
  outline: var(--ring);
  outline-offset: 2px;
}

/* ---------- 断点 ---------- */
@media (min-width: 700px) {
  .page-contact .coop-hero {
    padding: 20px 0 56px;
  }

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

  .page-contact .channel-card--wide {
    grid-column: 1 / -1;
  }

  .page-contact .process-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px;
  }

  .page-contact .letter-item p {
    padding-left: 52px;
  }
}

@media (min-width: 960px) {
  .page-contact .coop-hero-grid {
    grid-template-columns: minmax(0, 1.02fr) minmax(0, .88fr);
    gap: 48px;
    align-items: end;
  }

  .page-contact .coop-hero-copy .lede {
    max-width: 36ch;
    font-size: 17px;
  }

  .page-contact .channel-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 16px;
  }

  .page-contact .channel-card--wide {
    grid-column: auto;
  }

  .page-contact .coop-media-grid {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, .9fr);
    gap: 40px;
  }
}

@media (min-width: 1024px) {
  .page-contact .coop-split {
    grid-template-columns: minmax(0, 1.12fr) minmax(0, .88fr);
    gap: 52px;
    align-items: start;
  }

  .page-contact .coop-aside {
    position: sticky;
    top: 132px;
  }

  .page-contact .coop-row {
    padding: 26px 4px 28px;
  }

  .page-contact .coop-row-body p {
    font-size: 15px;
    max-width: 46ch;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .coop-row,
  .page-contact .coop-row-arrow,
  .page-contact .channel-card,
  .page-contact .guidance-links a,
  .page-contact .breadcrumb a,
  .page-contact .contact-jump {
    transition: none;
  }
}
<<<PAGE_CSS_END>>>