.page-contact {
  --contact-gap-lg: clamp(28px, 5vw, 56px);
  --contact-panel-top: 96px;
  position: relative;
  padding-bottom: clamp(32px, 6vw, 72px);
}

/* ---------- 面包屑 ---------- */
.page-contact .breadcrumbs {
  padding-top: clamp(16px, 3vw, 28px);
}
.page-contact .breadcrumbs__list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
  margin: 0;
  padding: 0;
  list-style: none;
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--fx-muted);
}
.page-contact .breadcrumbs__item + .breadcrumbs__item::before {
  content: "/";
  margin-right: 6px;
  color: var(--fx-line);
}
.page-contact .breadcrumbs__item a {
  color: var(--fx-muted);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 200ms ease, border-color 200ms ease;
}
.page-contact .breadcrumbs__item a:hover,
.page-contact .breadcrumbs__item a:focus-visible {
  color: var(--fx-orange-soft);
  border-bottom-color: currentColor;
}

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  position: relative;
  overflow: hidden;
  padding-block: clamp(24px, 4vw, 44px) clamp(36px, 6vw, 68px);
}
.page-contact .contact-hero::before {
  content: "";
  position: absolute;
  top: -32%;
  right: -18%;
  width: min(760px, 80vw);
  aspect-ratio: 1;
  background: radial-gradient(circle at 58% 42%, rgba(255, 90, 31, .30), rgba(138, 46, 11, .12) 46%, transparent 68%);
  pointer-events: none;
}
.page-contact .contact-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(to right, rgba(43, 50, 61, .5) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(43, 50, 61, .5) 1px, transparent 1px);
  background-size: 64px 64px;
  opacity: .45;
  -webkit-mask-image: linear-gradient(to bottom, rgba(0, 0, 0, .8), transparent 72%);
  mask-image: linear-gradient(to bottom, rgba(0, 0, 0, .8), transparent 72%);
  pointer-events: none;
}
.page-contact .contact-hero__inner {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(24px, 4vw, 44px);
  align-items: center;
}
.page-contact .contact-hero__title {
  margin: 12px 0 0;
  font-family: var(--fx-serif);
  font-size: clamp(32px, 5.4vw, 56px);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -.01em;
  color: var(--fx-ink);
}
.page-contact .contact-hero__lead {
  margin: 16px 0 0;
  max-width: 44ch;
  color: var(--fx-text-soft);
}
.page-contact .contact-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}
.page-contact .contact-hero__facts {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(130px, 1fr));
  gap: 18px;
  margin: 30px 0 0;
  padding-top: 20px;
  border-top: 1px solid var(--fx-line);
}
.page-contact .contact-hero__fact dt {
  font-size: 12px;
  font-weight: 600;
  letter-spacing: .08em;
  color: var(--fx-muted);
}
.page-contact .contact-hero__fact dd {
  margin: 6px 0 0;
  font-size: 14px;
  color: var(--fx-text-soft);
}
.page-contact .contact-hero__fact dd .num {
  display: inline-block;
  margin-right: 4px;
  font-size: 26px;
  font-weight: 800;
  line-height: 1;
  color: var(--fx-orange);
}
.page-contact .contact-hero__media {
  margin: 0;
  border: 1px solid var(--fx-line);
  border-radius: var(--fx-radius);
  overflow: hidden;
  background: linear-gradient(135deg, rgba(23, 29, 38, .92), rgba(13, 16, 21, .92));
  box-shadow: var(--fx-shadow);
}
.page-contact .contact-hero__media img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  aspect-ratio: 15 / 7;
}

/* ---------- 通道分屏 ---------- */
.page-contact .contact-channels__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(20px, 3vw, 34px);
  align-items: start;
}
.page-contact .contact-channels__cards {
  display: grid;
  gap: 14px;
}
.page-contact .channel-card {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 2px 16px;
  min-height: 44px;
  padding: 18px 20px;
  border: 1px solid var(--fx-line);
  border-left: 3px solid var(--fx-orange);
  border-radius: var(--fx-radius);
  background-color: var(--fx-layer);
  background-image: linear-gradient(100deg, rgba(23, 29, 38, .96), rgba(23, 29, 38, .68));
  color: inherit;
  text-decoration: none;
  transition: transform 200ms ease, border-color 200ms ease, box-shadow 200ms ease;
}
.page-contact .channel-card:hover,
.page-contact .channel-card:focus-visible {
  transform: translateY(-2px);
  border-color: var(--fx-orange-soft);
  border-left-color: var(--fx-mint);
  box-shadow: 0 18px 34px -26px rgba(255, 90, 31, .8);
  outline: none;
}
.page-contact .channel-card:focus-visible {
  box-shadow: 0 0 0 2px rgba(38, 245, 194, .55);
}
.page-contact .channel-card__index {
  grid-row: span 3;
  padding-top: 3px;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .08em;
  color: var(--fx-orange);
}
.page-contact .channel-card__title {
  font-family: var(--fx-serif);
  font-size: 20px;
  font-weight: 700;
  line-height: 1.3;
  color: var(--fx-ink);
}
.page-contact .channel-card__desc {
  margin-top: 4px;
  font-size: 14px;
  line-height: 1.65;
  color: var(--fx-text-soft);
}
.page-contact .channel-card__need {
  margin-top: 8px;
  font-size: 12.5px;
  line-height: 1.6;
  color: var(--fx-muted);
}
.page-contact .channel-card__need b {
  font-weight: 600;
  color: var(--fx-mint);
}

/* ---------- 右侧信息板 ---------- */
.page-contact .contact-board {
  padding: 22px;
  border: 1px solid var(--fx-line);
  border-radius: var(--fx-radius);
  background: var(--fx-glass);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  box-shadow: var(--fx-shadow);
}
.page-contact .contact-board__title {
  margin: 6px 0 0;
  font-family: var(--fx-serif);
  font-size: 22px;
  font-weight: 700;
  line-height: 1.25;
  color: var(--fx-ink);
}
.page-contact .contact-board__lines {
  display: grid;
  gap: 12px;
  margin: 18px 0 0;
  padding: 0;
  list-style: none;
}
.page-contact .contact-board__line {
  padding-bottom: 12px;
  border-bottom: 1px dashed var(--fx-line);
}
.page-contact .contact-board__line:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}
.page-contact .contact-board__label {
  display: block;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: .08em;
  color: var(--fx-muted);
}
.page-contact .contact-board__value {
  display: block;
  margin-top: 5px;
  font-size: 15px;
  line-height: 1.5;
  color: var(--fx-ink);
  overflow-wrap: anywhere;
}
.page-contact .contact-board__value--mono {
  font-family: var(--fx-mono);
  letter-spacing: .02em;
  color: var(--fx-orange-soft);
  font-variant-numeric: tabular-nums;
}
.page-contact .contact-board__note {
  margin: 16px 0 0;
  padding: 12px 14px;
  border-left: 2px solid var(--fx-mint);
  border-radius: 0 var(--fx-radius-sm) var(--fx-radius-sm) 0;
  background: rgba(38, 245, 194, .06);
  font-size: 13px;
  line-height: 1.7;
  color: var(--fx-text-soft);
}
.page-contact .contact-board__rows {
  display: grid;
  gap: 6px;
  margin-top: 18px;
  padding-top: 16px;
  border-top: 1px solid var(--fx-line);
}
.page-contact .board-row {
  padding: 10px 12px 10px 14px;
  border-left: 2px solid transparent;
  border-radius: 0 var(--fx-radius-sm) var(--fx-radius-sm) 0;
  transition: background-color 260ms ease, border-color 260ms ease;
}
.page-contact .board-row:target {
  border-left-color: var(--fx-mint);
  background: rgba(38, 245, 194, .09);
}
.page-contact .board-row__title {
  margin: 0;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: .06em;
  color: var(--fx-ink);
}
.page-contact .board-row__text {
  margin: 5px 0 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--fx-muted);
}

/* ---------- 合作流程 ---------- */
.page-contact .contact-flow__figure {
  margin: 0 0 clamp(24px, 4vw, 40px);
  border: 1px solid var(--fx-line);
  border-radius: var(--fx-radius);
  overflow: hidden;
  background: var(--fx-layer);
}
.page-contact .contact-flow__figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  aspect-ratio: 50 / 21;
}
.page-contact .flow-steps {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  margin: 0;
  padding: 0;
  list-style: none;
}
.page-contact .flow-step {
  padding: 18px 18px 20px;
  border-top: 2px solid var(--fx-orange);
  border-radius: 0 0 var(--fx-radius-sm) var(--fx-radius-sm);
  background-color: var(--fx-layer);
  background-image: linear-gradient(180deg, rgba(255, 90, 31, .10), rgba(23, 29, 38, 0) 62%);
  transition: transform 200ms ease, border-top-color 200ms ease;
}
.page-contact .flow-step:hover,
.page-contact .flow-step:focus-within {
  transform: translateY(-3px);
  border-top-color: var(--fx-mint);
}
.page-contact .flow-step__no {
  display: inline-block;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .08em;
  color: var(--fx-orange);
}
.page-contact .flow-step__title {
  margin: 6px 0 0;
  font-family: var(--fx-serif);
  font-size: 18px;
  font-weight: 700;
  line-height: 1.3;
  color: var(--fx-ink);
}
.page-contact .flow-step__text {
  margin: 8px 0 0;
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--fx-text-soft);
}

/* ---------- 数据纠错 ---------- */
.page-contact .contact-fix__inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(20px, 3vw, 38px);
  align-items: start;
}
.page-contact .contact-fix__text .section__title {
  margin-top: 10px;
}
.page-contact .contact-fix__list {
  display: grid;
  gap: 12px;
  margin: 0;
  padding: 22px;
  list-style: none;
  border: 1px solid var(--fx-line);
  border-radius: var(--fx-radius);
  background: var(--fx-layer);
  counter-reset: contact-fix;
}
.page-contact .contact-fix__list li {
  position: relative;
  padding-left: 28px;
  font-size: 14px;
  line-height: 1.6;
  color: var(--fx-text-soft);
}
.page-contact .contact-fix__list li::before {
  counter-increment: contact-fix;
  content: counter(contact-fix, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 2px;
  font-family: var(--fx-mono);
  font-size: 12px;
  font-weight: 700;
  color: var(--fx-mint);
  font-variant-numeric: tabular-nums;
}

/* ---------- 两个入口 ---------- */
.page-contact .contact-routing__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--fx-gap);
}
.page-contact .contact-routing .card {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 22px;
}
.page-contact .contact-routing .card__title {
  margin: 0;
  font-family: var(--fx-serif);
  font-size: 19px;
  font-weight: 700;
  color: var(--fx-ink);
}
.page-contact .contact-routing .card__body {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--fx-text-soft);
}

/* ---------- 相关入口 ---------- */
.page-contact .contact-more__inner {
  padding-top: 22px;
  border-top: 1px solid var(--fx-line);
}
.page-contact .contact-more__text {
  margin: 0;
  max-width: 68ch;
  font-size: 14px;
  line-height: 1.95;
  color: var(--fx-muted);
}
.page-contact .contact-more__text a {
  color: var(--fx-orange-soft);
  text-decoration: none;
  border-bottom: 1px solid rgba(255, 122, 69, .38);
  transition: color 200ms ease, border-color 200ms ease;
}
.page-contact .contact-more__text a:hover,
.page-contact .contact-more__text a:focus-visible {
  color: var(--fx-mint);
  border-bottom-color: var(--fx-mint);
}

/* ---------- 桌面端 ---------- */
@media (min-width: 900px) {
  .page-contact .contact-hero__inner {
    grid-template-columns: minmax(0, 6fr) minmax(0, 6fr);
  }
  .page-contact .contact-fix__inner {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
  }
  .page-contact .flow-steps {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .page-contact .contact-routing__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 980px) {
  .page-contact .contact-channels__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
  }
  .page-contact .contact-board {
    position: sticky;
    top: var(--contact-panel-top);
    max-height: calc(100vh - var(--contact-panel-top) - 24px);
    overflow-y: auto;
    scrollbar-width: thin;
    scrollbar-color: var(--fx-line) transparent;
  }
}

@media (min-width: 1180px) {
  .page-contact .flow-steps {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

/* ---------- 动效降级 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-contact .channel-card,
  .page-contact .flow-step,
  .page-contact .board-row,
  .page-contact .breadcrumbs__item a,
  .page-contact .contact-more__text a {
    transition: none;
  }
  .page-contact .channel-card:hover,
  .page-contact .channel-card:focus-visible,
  .page-contact .flow-step:hover,
  .page-contact .flow-step:focus-within {
    transform: none;
  }
}