.page-contact {
  --contact-gap: clamp(30px, 5vw, 68px);
  --contact-outline: 2px solid var(--ink-500);
  padding-bottom: clamp(56px, 9vw, 120px);
}

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  padding-top: clamp(20px, 4vw, 46px);
}

.page-contact .contact-hero .display-1 {
  margin: 14px 0 20px;
  max-width: 16ch;
}

.page-contact .contact-hero .lede {
  max-width: 62ch;
  color: var(--mist-100);
}

.page-contact .contact-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 30px;
}

.page-contact .contact-hero__meta {
  margin: 20px 0 0;
  font-size: 0.76rem;
  letter-spacing: 0.14em;
  color: var(--data-400);
}

/* ---------- 首屏配图 ---------- */
.page-contact .contact-banner {
  margin-top: var(--contact-gap);
  margin-bottom: 0;
}

.page-contact .media__img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

/* ---------- 4 : 8 双栏 ---------- */
.page-contact .contact-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(28px, 4vw, 52px);
  margin-top: clamp(34px, 6vw, 76px);
  align-items: start;
}

/* ---------- 粘性联系卡片 ---------- */
.page-contact .contact-card {
  background: var(--ink-700);
  border: 3px solid var(--ink-500);
  border-left: 4px solid var(--orange-500);
  box-shadow: var(--shadow-hard);
  padding: 26px 22px;
}

.page-contact .contact-card__badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin: 0 0 16px;
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.1em;
  color: var(--neon-400);
}

.page-contact .contact-card__title {
  margin: 0 0 20px;
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: 1.3rem;
  color: var(--mist-100);
}

.page-contact .contact-card__list {
  margin: 0;
  display: grid;
  gap: 18px;
}

.page-contact .contact-card__item {
  border-top: var(--line-soft);
  padding-top: 14px;
}

.page-contact .contact-card__label {
  margin: 0 0 6px;
  font-size: 0.7rem;
  letter-spacing: 0.16em;
  color: var(--data-400);
}

.page-contact .contact-card__value {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.98rem;
  font-weight: 600;
  line-height: 1.5;
  color: var(--white);
  overflow-wrap: anywhere;
  word-break: break-word;
}

.page-contact .contact-card__value a {
  color: var(--orange-300);
  text-decoration: none;
  border-bottom: 1px solid rgba(255, 161, 92, 0.5);
}

.page-contact .contact-card__value a:hover,
.page-contact .contact-card__value a:focus-visible {
  color: var(--orange-500);
  border-bottom-color: var(--orange-500);
}

.page-contact .contact-card__note {
  margin: 22px 0 0;
  padding-top: 16px;
  border-top: var(--line-soft);
  font-size: 0.85rem;
  line-height: 1.75;
  color: var(--mist-100);
  opacity: 0.8;
}

/* ---------- 右侧主栏章节 ---------- */
.page-contact .contact-main > .chapter {
  margin-bottom: clamp(46px, 7vw, 92px);
}

.page-contact .contact-main > .chapter:last-child {
  margin-bottom: 0;
}

.page-contact .chapter__body.prose p {
  color: var(--mist-100);
  opacity: 0.88;
}

/* ---------- 渠道列表 ---------- */
.page-contact .channel-list {
  list-style: none;
  margin: 30px 0 0;
  padding: 0;
}

.page-contact .channel {
  border-top: var(--line-soft);
  padding: 20px 0;
}

.page-contact .channel:last-child {
  border-bottom: var(--line-soft);
}

.page-contact .channel__label {
  margin: 0;
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  color: var(--orange-500);
}

.page-contact .channel__value {
  margin: 8px 0 0;
  font-family: var(--font-mono);
  font-size: 1.06rem;
  color: var(--white);
  overflow-wrap: anywhere;
}

.page-contact .channel__use {
  margin: 8px 0 0;
  max-width: 62ch;
  font-size: 0.92rem;
  line-height: 1.78;
  color: var(--mist-100);
  opacity: 0.84;
}

/* ---------- 咨询分类卡片 ---------- */
.page-contact .cat-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
  margin-top: 28px;
}

.page-contact .cat-card {
  background: var(--ink-700);
  border: 2px solid var(--ink-500);
  box-shadow: var(--shadow-hard-sm);
  padding: 22px 20px;
  outline: none;
  transition: transform 0.24s ease, box-shadow 0.24s ease, border-color 0.24s ease;
}

.page-contact .cat-card:hover,
.page-contact .cat-card:focus,
.page-contact .cat-card:focus-within {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hard);
  border-color: var(--steel-300);
}

.page-contact .cat-card__title {
  margin: 14px 0 10px;
  font-size: 1.08rem;
  line-height: 1.5;
  color: var(--white);
}

.page-contact .cat-card__text {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.76;
  color: var(--mist-100);
  opacity: 0.84;
}

.page-contact .cat-card__channel {
  margin: 18px 0 0;
  font-size: 0.76rem;
  letter-spacing: 0.04em;
  color: var(--orange-300);
}

.page-contact .cat-card__prep {
  overflow: hidden;
  max-height: 420px;
  opacity: 1;
  margin-top: 16px;
  padding-top: 14px;
  border-top: var(--line-soft);
  transition: max-height 0.26s ease, opacity 0.26s ease, margin-top 0.26s ease,
    padding-top 0.26s ease;
}

.page-contact .cat-card__prep-title {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  color: var(--data-400);
}

.page-contact .cat-card__prep ul {
  margin: 0;
  padding-left: 18px;
  display: grid;
  gap: 6px;
  font-size: 0.86rem;
  line-height: 1.65;
  color: var(--mist-100);
}

/* ---------- 处理流程 ---------- */
.page-contact .flow {
  list-style: none;
  margin: 30px 0 0;
  padding: 0;
  display: grid;
  gap: 22px;
}

.page-contact .flow__step {
  border-top: 2px solid var(--orange-500);
  padding-top: 14px;
}

.page-contact .flow__mark {
  display: inline-flex;
  color: var(--orange-500);
  margin-bottom: 10px;
}

.page-contact .flow__mark svg {
  transform: rotate(90deg);
  transition: transform 0.24s ease;
}

.page-contact .flow__num {
  display: block;
  font-size: 0.76rem;
  letter-spacing: 0.18em;
  color: var(--orange-500);
}

.page-contact .flow__title {
  margin: 10px 0 8px;
  font-size: 1rem;
  color: var(--white);
}

.page-contact .flow__text {
  margin: 0;
  font-size: 0.88rem;
  line-height: 1.74;
  color: var(--mist-100);
  opacity: 0.84;
}

.page-contact .resp-panel {
  margin-top: 36px;
  padding: 24px 22px;
  display: grid;
  gap: 22px;
}

.page-contact .resp-panel .stat__value {
  font-family: var(--font-mono);
  color: var(--orange-300);
}

.page-contact .resp-panel .stat__unit {
  margin-left: 4px;
  font-size: 0.82rem;
  color: var(--data-400);
}

/* ---------- 合作通栏 ---------- */
.page-contact .coop-band {
  margin-top: clamp(50px, 8vw, 104px);
  padding: clamp(36px, 6vw, 80px) 0;
  background: linear-gradient(180deg, rgba(255, 106, 26, 0.09), rgba(255, 106, 26, 0) 62%),
    var(--ink-700);
  border-top: 3px solid var(--orange-500);
  border-bottom: 3px solid var(--ink-500);
}

.page-contact .coop-band__inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: 30px;
  align-items: center;
}

.page-contact .coop-band__text .display-3 {
  margin: 12px 0 18px;
  max-width: 20ch;
}

.page-contact .coop-band__text > p:not(.kicker) {
  margin: 0 0 28px;
  max-width: 54ch;
  font-size: 0.94rem;
  line-height: 1.8;
  color: var(--mist-100);
  opacity: 0.88;
}

/* ---------- 自助入口 ---------- */
.page-contact .chapter--final {
  margin-top: clamp(50px, 8vw, 104px);
}

.page-contact .selfserve {
  list-style: none;
  margin: 28px 0 0;
  padding: 0;
}

.page-contact .selfserve__item {
  border-top: var(--line-soft);
}

.page-contact .selfserve__item:last-child {
  border-bottom: var(--line-soft);
}

.page-contact .selfserve__link {
  display: grid;
  gap: 6px;
  padding: 18px 0;
  text-decoration: none;
  transition: padding-left 0.22s ease;
}

.page-contact .selfserve__name {
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: 1.04rem;
  color: var(--orange-300);
}

.page-contact .selfserve__desc {
  font-size: 0.9rem;
  line-height: 1.74;
  color: var(--mist-100);
  opacity: 0.82;
}

.page-contact .selfserve__link:hover .selfserve__name,
.page-contact .selfserve__link:focus-visible .selfserve__name {
  color: var(--orange-500);
}

/* ---------- 窄屏兜底 ---------- */
.page-contact .btn {
  max-width: 100%;
}

.page-contact .contact-hero .display-1 {
  overflow-wrap: break-word;
}

/* ---------- 平板与桌面 ---------- */
@media (min-width: 700px) {
  .page-contact .cat-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
  }

  .page-contact .flow {
    grid-template-columns: repeat(2, 1fr);
    gap: 24px 26px;
  }

  .page-contact .flow__mark svg {
    transform: none;
  }

  .page-contact .resp-panel {
    grid-template-columns: repeat(3, 1fr);
    gap: 26px;
  }

  .page-contact .selfserve__link {
    grid-template-columns: 180px 1fr;
    gap: 24px;
    align-items: baseline;
  }
}

@media (min-width: 960px) {
  .page-contact .contact-layout {
    grid-template-columns: 4fr 8fr;
    gap: clamp(36px, 4vw, 60px);
  }

  .page-contact .contact-card {
    position: sticky;
    top: calc(var(--header-h-scrolled) + 22px);
    padding: 28px 24px;
  }

  .page-contact .flow {
    grid-template-columns: repeat(4, 1fr);
    gap: 22px;
  }

  .page-contact .coop-band__inner {
    grid-template-columns: 7fr 5fr;
    gap: clamp(36px, 5vw, 64px);
  }

  .page-contact .selfserve__link:hover,
  .page-contact .selfserve__link:focus-visible {
    padding-left: 12px;
  }
}

/* 悬停展开准备清单：仅在支持悬停的宽屏生效，触屏设备始终可见 */
@media (min-width: 700px) and (hover: hover) {
  .page-contact .cat-card__prep {
    max-height: 0;
    opacity: 0;
    margin-top: 0;
    padding-top: 0;
    border-top-color: transparent;
  }

  .page-contact .cat-card:hover .cat-card__prep,
  .page-contact .cat-card:focus .cat-card__prep,
  .page-contact .cat-card:focus-within .cat-card__prep {
    max-height: 420px;
    opacity: 1;
    margin-top: 16px;
    padding-top: 14px;
    border-top-color: rgba(74, 111, 165, 0.42);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .cat-card,
  .page-contact .cat-card__prep,
  .page-contact .flow__mark svg,
  .page-contact .selfserve__link {
    transition: none;
  }

  .page-contact .cat-card:hover,
  .page-contact .cat-card:focus,
  .page-contact .cat-card:focus-within {
    transform: none;
  }
}