.page-contact {
  --contact-gap: 20px;
  --contact-line: 1px solid var(--ink-600);
  padding-top: 14px;
  padding-bottom: 40px;
}

.page-contact .container {
  width: 100%;
}

/* ---- 面包屑 ---- */
.page-contact .crumb-list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin: 0 0 24px;
  padding: 0;
  list-style: none;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .05em;
  color: var(--ink-200);
}

.page-contact .crumb-list li + li::before {
  content: "/";
  margin-right: 8px;
  color: var(--ink-400);
}

.page-contact .crumb-list a {
  color: var(--ink-200);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color .18s var(--ease), border-color .18s var(--ease);
}

.page-contact .crumb-list a:hover,
.page-contact .crumb-list a:focus-visible {
  color: var(--verify);
  border-bottom-color: var(--verify);
}

.page-contact .crumb-list [aria-current="page"] {
  color: var(--paper);
}

/* ---- 首屏 ---- */
.page-contact .contact-hero {
  position: relative;
  padding: 6px 0 30px;
  border-bottom: var(--contact-line);
}

.page-contact .contact-title {
  font-family: var(--font-display);
  font-weight: 300;
  font-size: clamp(36px, 9.5vw, 72px);
  line-height: 1.02;
  letter-spacing: -0.015em;
  color: var(--paper);
  margin: 12px 0 18px;
  text-wrap: balance;
}

.page-contact .contact-title .hl {
  color: var(--signal);
  font-weight: 600;
}

.page-contact .contact-lede {
  max-width: 64ch;
  color: var(--ink-200);
  font-size: 16px;
  line-height: 1.8;
  margin: 0;
}

.page-contact .hero-marks {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 24px;
  margin: 26px 0 0;
  padding: 0;
  list-style: none;
  font-size: 13px;
  color: var(--ink-200);
}

.page-contact .hero-marks li {
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
  padding-left: 12px;
  border-left: 2px solid var(--earth);
}

.page-contact .hero-marks .mono {
  font-size: 11px;
  letter-spacing: .1em;
  color: var(--earth-text);
}

/* ---- 通用节标题 ---- */
.page-contact .section-title {
  position: relative;
  font-family: var(--font-display);
  font-weight: 500;
  font-size: clamp(24px, 5.4vw, 36px);
  line-height: 1.16;
  letter-spacing: .005em;
  color: var(--paper);
  margin: 0 0 16px;
  padding-top: 20px;
}

.page-contact .section-title::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 36px;
  height: 3px;
  background: var(--signal);
}

.page-contact .section-lede {
  max-width: 62ch;
  color: var(--ink-200);
  font-size: 15.5px;
  line-height: 1.8;
  margin: 0 0 22px;
}

.page-contact .grid {
  row-gap: 34px;
}

/* ---- 渠道区 ---- */
.page-contact .channel-stack {
  display: grid;
  gap: 14px;
}

.page-contact .channel-card {
  position: relative;
  padding: 20px 20px 22px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--ink-600);
  background: var(--glass);
  backdrop-filter: blur(10px);
  transition: border-color .18s var(--ease), transform .18s var(--ease);
}

.page-contact .channel-card:hover {
  border-color: var(--signal);
  transform: translateY(-2px);
}

.page-contact .channel-head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  margin-bottom: 12px;
}

.page-contact .channel-idx {
  font-size: 11px;
  letter-spacing: .12em;
  color: var(--ink-400);
}

.page-contact .channel-name {
  font-size: 15px;
  font-weight: 600;
  color: var(--paper);
  margin: 0 0 8px;
}

.page-contact .channel-value {
  font-family: var(--font-mono);
  font-size: clamp(15px, 4.2vw, 20px);
  letter-spacing: .02em;
  color: var(--verify);
  margin: 0 0 12px;
  word-break: break-all;
}

.page-contact .channel-value--text {
  font-family: var(--font-body);
  font-size: 16px;
  letter-spacing: 0;
  color: var(--paper);
  word-break: normal;
}

.page-contact .channel-note {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--ink-200);
}

.page-contact .contact-media {
  position: relative;
  display: block;
  margin: 0;
  border-radius: var(--radius-lg);
  border: 1px solid var(--ink-600);
  overflow: hidden;
  aspect-ratio: 3 / 2;
  background: var(--ink-800);
}

.page-contact .contact-media img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(.82) contrast(1.04);
}

.page-contact .contact-media figcaption {
  position: absolute;
  left: 12px;
  bottom: 12px;
  padding: 4px 12px;
  border-radius: var(--radius-pill);
  background: rgba(5, 9, 26, .68);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .05em;
  color: var(--paper);
}

.page-contact .visual-note {
  margin: 16px 0 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--ink-200);
  padding-left: 14px;
  border-left: 2px solid var(--ink-600);
}

/* ---- 场景对照 ---- */
.page-contact .route-table {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: var(--contact-line);
}

.page-contact .route-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 8px;
  padding: 18px 14px 18px 0;
  border-bottom: var(--contact-line);
  transition: padding-left .18s var(--ease), background .18s var(--ease);
}

.page-contact .route-row:hover {
  padding-left: 12px;
  background: linear-gradient(90deg, var(--signal-soft), transparent 70%);
}

.page-contact .route-case {
  font-size: 16px;
  font-weight: 500;
  line-height: 1.6;
  color: var(--paper);
}

.page-contact .route-to {
  justify-self: start;
  padding: 3px 12px;
  border-radius: var(--radius-pill);
  border: 1px solid rgba(198, 242, 78, .32);
  background: var(--verify-soft);
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--verify);
  white-space: nowrap;
}

.page-contact .route-hint {
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--ink-200);
}

.page-contact .route-hint a {
  color: var(--paper);
  text-decoration: none;
  border-bottom: 1px solid var(--signal);
  transition: color .18s var(--ease);
}

.page-contact .route-hint a:hover,
.page-contact .route-hint a:focus-visible {
  color: var(--signal);
}

/* ---- 更正清单 ---- */
.page-contact .correction-section {
  position: relative;
  background: linear-gradient(180deg, transparent, rgba(19, 30, 61, .55) 42%, transparent);
}

.page-contact .contact-media--alt {
  aspect-ratio: 10 / 7;
}

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

.page-contact .check-item {
  display: grid;
  grid-template-columns: 26px 1fr;
  gap: 14px;
  padding: 15px 16px;
  border: 1px solid var(--ink-600);
  border-radius: 14px;
  background: var(--ink-800);
  transition: border-color .18s var(--ease), background .18s var(--ease);
}

.page-contact .check-item:hover {
  border-color: var(--earth-text);
  background: var(--ink-700);
}

.page-contact .check-box {
  position: relative;
  width: 22px;
  height: 22px;
  margin-top: 2px;
  border: 1.5px solid var(--ink-400);
  border-radius: 6px;
  transition: border-color .18s var(--ease), box-shadow .18s var(--ease);
}

.page-contact .check-item:hover .check-box {
  border-color: var(--verify);
  box-shadow: inset 0 0 0 4px var(--verify-soft);
}

.page-contact .check-title {
  margin: 0 0 5px;
  font-size: 15.5px;
  font-weight: 600;
  color: var(--paper);
}

.page-contact .check-text {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.72;
  color: var(--ink-200);
}

/* ---- 响应节奏 ---- */
.page-contact .pace-rail {
  position: relative;
  display: flex;
  justify-content: space-between;
  margin: 0 0 26px;
  padding-top: 22px;
}

.page-contact .pace-rail::before {
  content: "";
  position: absolute;
  top: 8px;
  left: 5px;
  right: 5px;
  height: 2px;
  border-radius: 2px;
  background: linear-gradient(90deg, var(--signal), var(--verify));
  opacity: .8;
}

.page-contact .pace-node {
  position: relative;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  border: 2px solid var(--signal);
  background: var(--ink-900);
}

.page-contact .pace-node:nth-child(2) {
  border-color: var(--signal);
}

.page-contact .pace-node:nth-child(3) {
  border-color: var(--verify);
  background: var(--verify);
  box-shadow: 0 0 0 5px var(--verify-soft);
}

.page-contact .pace-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 4px;
}

.page-contact .pace-list li {
  display: grid;
  grid-template-columns: 1fr;
  gap: 6px;
  padding: 16px 0;
  border-top: var(--contact-line);
}

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

.page-contact .pace-list p {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--ink-200);
}

.page-contact .pace-foot {
  margin: 22px 0 0;
  padding: 16px 18px;
  border-left: 3px solid var(--earth);
  background: rgba(176, 86, 60, .09);
  border-radius: 0 12px 12px 0;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--ink-200);
}

/* ---- 合作 ---- */
.page-contact .collab-grid {
  gap: 18px;
}

.page-contact .collab-card {
  position: relative;
  overflow: hidden;
  padding: 24px 22px 26px;
  border: 1px solid var(--ink-600);
  border-radius: var(--radius-lg);
  background: linear-gradient(165deg, var(--ink-700), var(--ink-800));
}

.page-contact .collab-card::after {
  content: "";
  position: absolute;
  right: -34px;
  top: -34px;
  width: 128px;
  height: 128px;
  border-radius: 50%;
  background: radial-gradient(circle, var(--signal-soft), transparent 70%);
  pointer-events: none;
}

.page-contact .collab-card:nth-child(2)::after {
  background: radial-gradient(circle, var(--verify-soft), transparent 70%);
}

.page-contact .collab-card:nth-child(3)::after {
  background: radial-gradient(circle, rgba(176, 86, 60, .28), transparent 70%);
}

.page-contact .collab-tag {
  display: inline-block;
  font-size: 11px;
  letter-spacing: .14em;
  color: var(--earth-text);
  margin-bottom: 16px;
}

.page-contact .collab-figure {
  display: flex;
  align-items: baseline;
  gap: 4px;
  margin: 0 0 10px;
}

.page-contact .collab-num {
  font-family: var(--font-display);
  font-weight: 300;
  font-size: clamp(44px, 11vw, 64px);
  line-height: .9;
  color: var(--paper);
}

.page-contact .collab-unit {
  font-size: 14px;
  color: var(--ink-200);
}

.page-contact .collab-name {
  font-size: 16px;
  font-weight: 600;
  color: var(--paper);
  margin: 0 0 10px;
}

.page-contact .collab-text {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--ink-200);
}

.page-contact .collab-text a {
  color: var(--verify);
  text-decoration: none;
  border-bottom: 1px solid rgba(198, 242, 78, .5);
}

.page-contact .suggest-panel {
  margin-top: 30px;
  padding: 26px 22px;
  border: 1px solid var(--ink-600);
  border-radius: var(--radius-lg);
  background: var(--glass);
  backdrop-filter: blur(8px);
}

.page-contact .suggest-title {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 22px;
  color: var(--paper);
  margin: 0 0 12px;
}

.page-contact .suggest-panel p {
  margin: 0 0 14px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--ink-200);
  max-width: 66ch;
}

.page-contact .suggest-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin: 22px 0 0;
}

/* ---- 折叠说明 ---- */
.page-contact .faq-list {
  border-top: var(--contact-line);
}

.page-contact .faq-item {
  border-bottom: var(--contact-line);
}

.page-contact .faq-q {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
  padding: 18px 0;
  cursor: pointer;
  list-style: none;
  font-size: 16.5px;
  font-weight: 500;
  color: var(--paper);
  transition: color .18s var(--ease);
}

.page-contact .faq-q::-webkit-details-marker {
  display: none;
}

.page-contact .faq-q::after {
  content: "+";
  font-family: var(--font-mono);
  font-size: 20px;
  line-height: 1;
  color: var(--signal);
}

.page-contact .faq-item[open] .faq-q::after {
  content: "–";
  color: var(--verify);
}

.page-contact .faq-q:hover {
  color: var(--signal);
}

.page-contact .faq-a {
  padding: 0 0 20px;
}

.page-contact .faq-a p {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--ink-200);
  max-width: 68ch;
}

.page-contact .faq-a a {
  color: var(--verify);
  text-decoration: none;
  border-bottom: 1px solid rgba(198, 242, 78, .5);
}

/* ---- 备案收口 ---- */
.page-contact .meta-panel {
  padding: 26px 22px;
  border: 1px solid var(--ink-600);
  border-radius: var(--radius-lg);
  background: var(--ink-800);
}

.page-contact .meta-list {
  display: grid;
  gap: 0;
  margin: 8px 0 0;
}

.page-contact .meta-list > div {
  display: grid;
  grid-template-columns: 1fr;
  gap: 4px;
  padding: 14px 0;
  border-bottom: 1px dashed var(--ink-600);
}

.page-contact .meta-list > div:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.page-contact .meta-list dt {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .12em;
  color: var(--ink-400);
}

.page-contact .meta-list dd {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--paper);
  word-break: break-word;
}

.page-contact .meta-list dd.mono {
  font-size: 13.5px;
  letter-spacing: .03em;
  color: var(--verify);
}

/* ---- 平板及以上 ---- */
@media (min-width: 700px) {
  .page-contact {
    padding-top: 22px;
  }

  .page-contact .route-row {
    grid-template-columns: minmax(0, 1.5fr) minmax(0, .8fr) minmax(0, 1.8fr);
    align-items: center;
    column-gap: 22px;
    padding-right: 0;
  }

  .page-contact .pace-list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 22px;
  }

  .page-contact .pace-list li {
    grid-template-columns: 1fr;
    align-content: start;
    border-top: 0;
    border-left: var(--contact-line);
    padding: 4px 0 4px 16px;
  }

  .page-contact .meta-list > div {
    grid-template-columns: 130px minmax(0, 1fr);
    align-items: baseline;
    gap: 18px;
  }

  .page-contact .suggest-panel {
    padding: 32px 30px;
  }
}

@media (min-width: 980px) {
  .page-contact .hero-marks {
    gap: 10px 34px;
  }

  .page-contact .channel-stack {
    gap: 16px;
  }

  .page-contact .channel-card {
    padding: 24px 26px 26px;
  }

  .page-contact .contact-media {
    aspect-ratio: 4 / 5;
  }

  .page-contact .contact-media--alt {
    aspect-ratio: 10 / 7;
  }

  .page-contact .pace-rail {
    margin-bottom: 34px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .channel-card,
  .page-contact .route-row,
  .page-contact .check-item,
  .page-contact .crumb-list a {
    transition: none;
  }

  .page-contact .channel-card:hover {
    transform: none;
  }
}