.page-contact {
  --ct-hair: var(--yb-line);
  --ct-hair-soft: var(--yb-line-soft);
  --ct-gap: clamp(1.5rem, 4vw, 3rem);
  background: var(--yb-void);
  color: var(--yb-body-text);
}

/* 面包屑 */
.page-contact .ct-crumbs__inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
  padding-top: clamp(0.9rem, 3vw, 1.4rem);
  font-family: var(--yb-font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--yb-muted);
}
.page-contact .ct-crumb-link {
  color: var(--yb-muted);
  text-decoration: none;
  border-bottom: 1px solid var(--ct-hair-soft);
  padding-bottom: 1px;
}
.page-contact .ct-crumb-link:hover,
.page-contact .ct-crumb-link:focus-visible {
  color: var(--yb-signal);
  border-bottom-color: var(--yb-signal-a35);
}

/* 首屏 */
.page-contact .ct-hero {
  padding-top: clamp(1.2rem, 3vw, 2.2rem);
}
.page-contact .ct-hero__grid {
  display: grid;
  gap: var(--ct-gap);
}
.page-contact .ct-hero__title {
  margin: 0.6rem 0 1rem;
  color: var(--yb-ink);
  font-family: var(--yb-font-display);
  font-weight: 700;
  font-size: clamp(2rem, 6.4vw, 3.6rem);
  line-height: 1.12;
  letter-spacing: -0.02em;
}
.page-contact .ct-hero__lede {
  max-width: 34em;
  color: var(--yb-body-text);
}

/* 通道刻度列表 */
.page-contact .ct-channels {
  list-style: none;
  margin: clamp(1.6rem, 4vw, 2.4rem) 0 0;
  padding: 0;
  border-top: 1px solid var(--ct-hair);
}
.page-contact .ct-channel {
  border-bottom: 1px solid var(--ct-hair-soft);
}
.page-contact .ct-channel__link {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: start;
  gap: 0.85rem;
  min-height: var(--yb-tap);
  padding: 0.9rem 0.6rem 0.9rem 0.2rem;
  text-decoration: none;
  color: inherit;
  transition: background-color 160ms linear, padding-left 160ms linear;
}
.page-contact .ct-channel__link:hover,
.page-contact .ct-channel__link:focus-visible {
  background: var(--yb-signal-a12);
  padding-left: 0.6rem;
}
.page-contact .ct-channel__idx {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--yb-signal-dim);
  line-height: 1.5;
}
.page-contact .ct-channel__body {
  display: block;
}
.page-contact .ct-channel__name {
  display: block;
  color: var(--yb-ink);
  font-family: var(--yb-font-display);
  font-weight: 600;
  font-size: 1rem;
  letter-spacing: -0.01em;
}
.page-contact .ct-channel__desc {
  display: block;
  margin-top: 0.25rem;
  font-size: 13px;
  line-height: 1.6;
  color: var(--yb-muted);
}
.page-contact .ct-channel__dot {
  width: 6px;
  height: 6px;
  margin-top: 0.55rem;
  background: var(--yb-grid);
  transition: background-color 160ms linear, box-shadow 160ms linear;
}
.page-contact .ct-channel__link:hover .ct-channel__dot {
  background: var(--yb-signal);
  box-shadow: 0 0 0 3px var(--yb-signal-a12);
}
.page-contact [data-toc-link][aria-current="true"] {
  background: var(--yb-signal-a12);
  padding-left: 0.6rem;
}
.page-contact [data-toc-link][aria-current="true"] .ct-channel__dot {
  background: var(--yb-signal);
  box-shadow: 0 0 0 3px var(--yb-signal-a12);
}
.page-contact [data-toc-link][aria-current="true"] .ct-channel__name {
  color: var(--yb-signal);
}

/* 联系信息面板 */
.page-contact .ct-panel {
  position: relative;
  padding: clamp(1.2rem, 3.5vw, 1.9rem);
  background: var(--yb-elevated);
  border: 1px solid var(--ct-hair);
}
.page-contact .ct-panel::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 2px;
  background: linear-gradient(90deg, var(--yb-signal) 0%, var(--yb-signal-dim) 42%, transparent 100%);
}
.page-contact .ct-panel__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--ct-hair-soft);
}
.page-contact .ct-panel__pulse {
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--yb-amber);
}
.page-contact .ct-panel__list {
  margin: 0;
  padding: 0;
}
.page-contact .ct-panel__row {
  padding: 1rem 0;
  border-bottom: 1px solid var(--ct-hair-soft);
}
.page-contact .ct-panel__row dt {
  font-family: var(--yb-font-serif);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--yb-muted);
}
.page-contact .ct-panel__row dd {
  margin: 0.4rem 0 0;
}
.page-contact .ct-mono {
  font-family: var(--yb-font-mono);
  font-variant-numeric: tabular-nums;
  color: var(--yb-ink);
  letter-spacing: 0.02em;
  word-break: break-all;
}
.page-contact .ct-mono--lg {
  font-size: clamp(1.35rem, 4.2vw, 1.8rem);
  font-weight: 700;
}
.page-contact .ct-mono--md {
  font-size: clamp(0.85rem, 2.9vw, 1rem);
  font-weight: 500;
}
.page-contact .ct-panel__addr {
  font-size: 14px;
  line-height: 1.7;
  color: var(--yb-body-text);
}
.page-contact .ct-panel__stat {
  display: grid;
  grid-template-columns: auto auto minmax(0, 1fr);
  align-items: baseline;
  gap: 0.4rem;
  padding: 1.1rem 0;
}
.page-contact .ct-panel__stat-num {
  font-size: clamp(2.2rem, 8vw, 3rem);
  font-weight: 700;
  line-height: 1;
  color: var(--yb-signal);
}
.page-contact .ct-panel__stat-unit {
  font-size: 0.8rem;
  color: var(--yb-amber);
  font-family: var(--yb-font-serif);
}
.page-contact .ct-panel__stat-text {
  grid-column: 1 / -1;
  font-size: 13px;
  line-height: 1.7;
  color: var(--yb-muted);
}
.page-contact .ct-panel__media {
  margin-top: 0.4rem;
  aspect-ratio: 3 / 2;
}

/* 章节骨架 */
.page-contact .ct-chapter {
  border-top: 1px solid var(--ct-hair);
}
.page-contact .ct-chapter--panel {
  background: var(--yb-panel);
}
.page-contact .ct-chapter--rule {
  background: linear-gradient(180deg, var(--yb-panel) 0%, var(--yb-void) 100%);
}
.page-contact .ct-chapter__grid {
  display: grid;
  gap: clamp(1rem, 3vw, 2rem);
}
.page-contact .ct-chapter__mark {
  display: flex;
  align-items: baseline;
  gap: 0.7rem;
}
.page-contact .ct-chapter__num {
  font-size: clamp(2.4rem, 9vw, 3.6rem);
  font-weight: 700;
  line-height: 0.9;
  color: var(--yb-signal-dim);
}
.page-contact .ct-chapter__label {
  font-family: var(--yb-font-serif);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--yb-muted);
}
.page-contact .ct-chapter__body h2 {
  color: var(--yb-ink);
  font-family: var(--yb-font-display);
  font-weight: 700;
  font-size: clamp(1.45rem, 4.4vw, 2.1rem);
  line-height: 1.25;
  letter-spacing: -0.02em;
  margin: 0 0 0.8rem;
}
.page-contact .ct-chapter__body p {
  max-width: 34em;
  margin: 0 0 0.9rem;
  line-height: 1.7;
}
.page-contact .yb-h3 {
  color: var(--yb-ink);
  font-family: var(--yb-font-display);
  font-weight: 600;
  font-size: 1rem;
  margin: 0 0 0.7rem;
}

/* 自查清单 */
.page-contact .ct-check {
  list-style: none;
  margin: 1.2rem 0 0;
  padding: 0;
  border-top: 1px solid var(--ct-hair-soft);
}
.page-contact .ct-check--tight {
  margin-top: 1.4rem;
}
.page-contact .ct-check__item {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 0.7rem;
  align-items: start;
  padding: 0.7rem 0;
  border-bottom: 1px solid var(--ct-hair-soft);
  font-size: 14px;
  line-height: 1.65;
  color: var(--yb-body-text);
}
.page-contact .ct-check__mark {
  width: 12px;
  height: 12px;
  margin-top: 0.34rem;
  border: 1px solid var(--yb-signal-dim);
  background:
    linear-gradient(135deg, transparent 44%, var(--yb-signal) 44%, var(--yb-signal) 56%, transparent 56%),
    var(--yb-signal-a12);
}

/* 环境信息列表 */
.page-contact .ct-spec {
  list-style: none;
  margin: 1.2rem 0 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--ct-hair-soft);
  border: 1px solid var(--ct-hair-soft);
}
.page-contact .ct-spec__item {
  display: grid;
  gap: 0.25rem;
  padding: 0.8rem 0.9rem;
  background: var(--yb-void);
}
.page-contact .ct-spec__k {
  font-family: var(--yb-font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--yb-signal);
}
.page-contact .ct-spec__v {
  font-size: 13.5px;
  line-height: 1.65;
  color: var(--yb-muted);
}

/* 战报系列 */
.page-contact .ct-series {
  margin-top: 1.2rem;
  border-top: 1px solid var(--ct-hair-soft);
}
.page-contact .ct-series__row {
  display: grid;
  gap: 0.5rem;
  padding: 0.85rem 0;
  border-bottom: 1px solid var(--ct-hair-soft);
}
.page-contact .ct-series__text {
  font-size: 14px;
  line-height: 1.65;
  color: var(--yb-muted);
}

/* 合作双栏 */
.page-contact .ct-partner {
  display: grid;
  gap: clamp(1.2rem, 3vw, 2rem);
  margin-top: 1.4rem;
}
.page-contact .ct-list {
  list-style: none;
  margin: 0;
  padding: 0;
}
.page-contact .ct-list li {
  position: relative;
  padding: 0.6rem 0 0.6rem 1.1rem;
  border-top: 1px solid var(--ct-hair-soft);
  font-size: 14px;
  line-height: 1.65;
  color: var(--yb-body-text);
}
.page-contact .ct-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 1.1rem;
  width: 6px;
  height: 6px;
  background: var(--yb-action);
}
.page-contact .ct-list--plain li::before {
  background: var(--yb-signal);
}

/* 段落内链接与说明 */
.page-contact .ct-aside {
  margin-top: 1.2rem;
  padding-left: 0.9rem;
  border-left: 1px solid var(--yb-signal-a35);
  font-size: 14px;
  color: var(--yb-muted);
}
.page-contact .ct-inline-link {
  color: var(--yb-signal);
  text-decoration: none;
  border-bottom: 1px solid var(--yb-signal-a35);
}
.page-contact .ct-inline-link:hover,
.page-contact .ct-inline-link:focus-visible {
  color: var(--yb-focus);
  border-bottom-color: var(--yb-focus);
}

/* 四步流程 */
.page-contact .ct-flow__title {
  color: var(--yb-ink);
  font-family: var(--yb-font-display);
  font-weight: 700;
  font-size: clamp(1.5rem, 4.6vw, 2.2rem);
  margin: 0.5rem 0 0.8rem;
  letter-spacing: -0.02em;
}
.page-contact .ct-flow__lede {
  max-width: 34em;
}
.page-contact .ct-flow {
  list-style: none;
  margin: clamp(1.6rem, 4vw, 2.4rem) 0 0;
  padding: 0;
  display: grid;
  gap: 1.4rem;
}
.page-contact .ct-flow__item {
  position: relative;
  padding-top: 1.1rem;
  border-top: 1px solid var(--ct-hair);
}
.page-contact .ct-flow__item::before {
  content: "";
  position: absolute;
  top: -3px;
  left: 0;
  width: 6px;
  height: 6px;
  background: var(--yb-signal);
}
.page-contact .ct-flow__idx {
  display: block;
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--yb-signal);
  line-height: 1;
}
.page-contact .ct-flow__name {
  margin: 0.6rem 0 0.4rem;
  color: var(--yb-ink);
}
.page-contact .ct-flow__item p {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--yb-muted);
}
.page-contact .ct-flow__note {
  margin: clamp(1.4rem, 4vw, 2rem) 0 0;
  padding: 0.9rem 1rem;
  background: var(--yb-action-a30);
  border-left: 2px solid var(--yb-action);
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--yb-ink);
}

/* 运营中心 */
.page-contact .ct-center {
  border-top: 1px solid var(--ct-hair);
}
.page-contact .ct-center__banner {
  position: relative;
  aspect-ratio: 21 / 9;
  margin-bottom: clamp(1.4rem, 4vw, 2.4rem);
}
.page-contact .ct-center__pin {
  position: absolute;
  right: 12%;
  bottom: 34%;
  width: 14px;
  height: 14px;
  border: 1px solid var(--yb-signal);
  background: var(--yb-signal-a12);
}
.page-contact .ct-center__pin::after {
  content: "";
  position: absolute;
  inset: 4px;
  background: var(--yb-signal);
}
.page-contact .ct-center__grid {
  display: grid;
  gap: clamp(1.4rem, 4vw, 2.6rem);
}
.page-contact .ct-center__lead h2 {
  color: var(--yb-ink);
  font-family: var(--yb-font-display);
  font-weight: 700;
  font-size: clamp(1.45rem, 4.4vw, 2.1rem);
  line-height: 1.25;
  letter-spacing: -0.02em;
  margin: 0.5rem 0 0.8rem;
}
.page-contact .ct-center__lead p {
  max-width: 34em;
  margin: 0;
  line-height: 1.7;
}
.page-contact .ct-facts {
  margin: 0;
  border-top: 1px solid var(--ct-hair);
}
.page-contact .ct-facts__row {
  display: grid;
  gap: 0.3rem;
  padding: 0.85rem 0;
  border-bottom: 1px solid var(--ct-hair-soft);
}
.page-contact .ct-facts__row dt {
  font-family: var(--yb-font-serif);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--yb-muted);
}
.page-contact .ct-facts__row dd {
  margin: 0;
  font-family: var(--yb-font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 14px;
  line-height: 1.65;
  color: var(--yb-ink);
}
.page-contact .ct-center__links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
  margin-top: clamp(1.6rem, 4vw, 2.4rem);
}
.page-contact .ct-center__links .yb-btn {
  flex: 1 1 auto;
  justify-content: center;
}

/* 平板及以上 */
@media (min-width: 900px) {
  .page-contact .ct-hero__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: start;
  }
  .page-contact .ct-panel {
    margin-top: clamp(2.4rem, 6vw, 4.4rem);
  }
  .page-contact .ct-chapter__grid {
    grid-template-columns: minmax(0, 3fr) minmax(0, 9fr);
    gap: clamp(1.5rem, 3vw, 3rem);
  }
  .page-contact .ct-chapter__mark {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.6rem;
    position: sticky;
    top: 6.5rem;
  }
  .page-contact .ct-partner {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .page-contact .ct-flow {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 1.8rem;
  }
  .page-contact .ct-center__grid {
    grid-template-columns: minmax(0, 6fr) minmax(0, 6fr);
    align-items: start;
  }
  .page-contact .ct-center__links .yb-btn {
    flex: 0 0 auto;
    padding-left: 1.6rem;
    padding-right: 1.6rem;
  }
}

/* 小屏微调 */
@media (max-width: 559px) {
  .page-contact .ct-panel__stat {
    grid-template-columns: auto auto;
  }
  .page-contact .ct-panel__stat-text {
    grid-column: 1 / -1;
  }
  .page-contact .ct-channel__link {
    padding-right: 0.2rem;
  }
  .page-contact .ct-center__pin {
    right: 8%;
    bottom: 28%;
  }
}