.page-contact {
  --pc-line: rgba(63, 240, 216, .3);
  --pc-line-gold: rgba(245, 185, 74, .34);
  --pc-line-magenta: rgba(255, 77, 141, .32);
  overflow-x: hidden;
}

.page-contact .px-eyebrow {
  margin: 0 0 10px;
}

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  padding: clamp(26px, 4.6vw, 52px) 0 clamp(20px, 3vw, 30px);
  max-width: 860px;
}

.page-contact .contact-hero__title {
  font-family: var(--head);
  font-weight: 900;
  font-size: clamp(32px, 5.6vw, 60px);
  line-height: 1.1;
  letter-spacing: -.02em;
  color: var(--ink);
  margin: 0;
}

.page-contact .contact-hero__lede {
  margin: 18px 0 0;
  color: var(--ink-2);
  max-width: 62ch;
}

.page-contact .contact-band {
  position: relative;
  margin: 0 0 clamp(34px, 5.4vw, 62px);
  border: 1px solid var(--pc-line);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--indigo-900);
}

.page-contact .contact-band img {
  display: block;
  width: 100%;
  height: clamp(160px, 32vw, 300px);
  object-fit: cover;
}

.page-contact .contact-band::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(112deg, rgba(11, 16, 48, .88) 4%, rgba(11, 16, 48, .18) 62%, rgba(63, 240, 216, .12));
}

/* ---------- 三个渠道 ---------- */
.page-contact .contact-channels {
  padding-top: 0;
}

.page-contact .contact-channels__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  margin-top: 26px;
}

.page-contact .channel-card {
  position: relative;
  padding: 26px 22px 24px;
  background: var(--indigo-800);
  border: 1px solid var(--indigo-600);
  border-radius: var(--radius);
  transition: transform .28s var(--ease), border-color .28s var(--ease), box-shadow .28s var(--ease);
}

.page-contact .channel-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  border-radius: var(--radius) var(--radius) 0 0;
  background: var(--cyan);
}

.page-contact .channel-card--mail::before { background: var(--gold); }
.page-contact .channel-card--addr::before { background: var(--magenta); }

.page-contact .channel-card:hover {
  transform: translateY(-6px);
  border-color: var(--pc-line);
  box-shadow: 0 16px 34px rgba(4, 7, 26, .5);
}

.page-contact .channel-card--mail:hover { border-color: var(--pc-line-gold); }
.page-contact .channel-card--addr:hover { border-color: var(--pc-line-magenta); }

.page-contact .channel-card__tag {
  display: inline-block;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--cyan);
  border: 1px solid var(--pc-line);
  border-radius: 999px;
  padding: 3px 10px;
}

.page-contact .channel-card--mail .channel-card__tag {
  color: var(--gold);
  border-color: var(--pc-line-gold);
}

.page-contact .channel-card--addr .channel-card__tag {
  color: var(--magenta);
  border-color: var(--pc-line-magenta);
}

.page-contact .channel-card__title {
  font-family: var(--head);
  font-size: 21px;
  font-weight: 800;
  color: var(--ink);
  margin: 14px 0 0;
}

.page-contact .channel-card__value {
  font-family: var(--mono);
  font-variant-numeric: tabular-nums;
  font-size: clamp(16px, 2.1vw, 19px);
  line-height: 1.5;
  letter-spacing: -.01em;
  color: var(--ink);
  margin: 10px 0 0;
  word-break: break-word;
}

.page-contact .channel-card--phone .channel-card__value { color: var(--gold); }
.page-contact .channel-card--mail .channel-card__value { color: var(--cyan); }

.page-contact .channel-card__desc {
  font-size: 15px;
  line-height: 1.78;
  color: var(--ink-2);
  margin: 12px 0 0;
}

.page-contact .channel-card__meta {
  font-size: 13px;
  letter-spacing: .04em;
  color: var(--ink-2);
  opacity: .82;
  margin: 16px 0 0;
  padding-top: 14px;
  border-top: 1px solid var(--indigo-600);
}

/* ---------- 响应时效 ---------- */
.page-contact .contact-timing {
  padding-top: clamp(52px, 7.6vw, 94px);
}

.page-contact .contact-timing__grid {
  align-items: start;
}

.page-contact .contact-timing__note {
  font-size: 15px;
  line-height: 1.78;
  color: var(--ink-2);
  margin: 12px 0 0;
}

.page-contact .contact-timing__figure {
  margin: 24px 0 0;
}

.page-contact .contact-timing__figure img {
  display: block;
  width: 100%;
  height: auto;
  border: 1px solid var(--indigo-600);
  border-radius: var(--radius-sm);
  object-fit: cover;
}

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

.page-contact .contact-timeline__item {
  position: relative;
  padding: 0 0 28px 28px;
}

.page-contact .contact-timeline__item::before {
  content: "";
  position: absolute;
  left: 4px;
  top: 7px;
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 0 4px rgba(63, 240, 216, .14);
}

.page-contact .contact-timeline__item::after {
  content: "";
  position: absolute;
  left: 9px;
  top: 24px;
  bottom: 2px;
  width: 1px;
  background: rgba(63, 240, 216, .22);
}

.page-contact .contact-timeline__item:last-child { padding-bottom: 0; }
.page-contact .contact-timeline__item:last-child::after { display: none; }

.page-contact .contact-timeline__time {
  font-family: var(--mono);
  font-variant-numeric: tabular-nums;
  font-size: clamp(18px, 2.6vw, 22px);
  letter-spacing: -.01em;
  color: var(--cyan);
  margin: 0;
}

.page-contact .contact-timeline__label {
  font-family: var(--head);
  font-size: 17px;
  font-weight: 700;
  color: var(--ink);
  margin: 8px 0 0;
}

.page-contact .contact-timeline__text {
  font-size: 15px;
  line-height: 1.78;
  color: var(--ink-2);
  margin: 8px 0 0;
  max-width: 60ch;
}

.page-contact .contact-timeline__item--gold::before {
  background: var(--gold);
  box-shadow: 0 0 0 4px rgba(245, 185, 74, .14);
}
.page-contact .contact-timeline__item--gold::after { background: rgba(245, 185, 74, .22); }
.page-contact .contact-timeline__item--gold .contact-timeline__time { color: var(--gold); }

.page-contact .contact-timeline__item--violet::before {
  background: var(--violet);
  box-shadow: 0 0 0 4px rgba(139, 108, 246, .16);
}
.page-contact .contact-timeline__item--violet::after { background: rgba(139, 108, 246, .24); }
.page-contact .contact-timeline__item--violet .contact-timeline__time { color: var(--violet); }

.page-contact .contact-timeline__item--teal::before {
  background: var(--cyan-700);
  box-shadow: 0 0 0 4px rgba(20, 184, 166, .16);
}
.page-contact .contact-timeline__item--teal::after { background: rgba(20, 184, 166, .24); }
.page-contact .contact-timeline__item--teal .contact-timeline__time { color: var(--cyan-700); }

/* ---------- 描述问题 ---------- */
.page-contact .contact-brief {
  padding-top: clamp(48px, 7vw, 86px);
}

.page-contact .contact-brief__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
  margin-top: 26px;
}

.page-contact .contact-brief__item {
  padding: 4px 0 4px 20px;
  border-left: 2px solid var(--pc-line);
}

.page-contact .contact-brief__item:nth-child(2) { border-left-color: var(--pc-line-gold); }
.page-contact .contact-brief__item:nth-child(3) { border-left-color: var(--pc-line-magenta); }

.page-contact .contact-brief__index {
  font-family: var(--mono);
  font-size: 13px;
  letter-spacing: .08em;
  color: var(--cyan);
}

.page-contact .contact-brief__item:nth-child(2) .contact-brief__index { color: var(--gold); }
.page-contact .contact-brief__item:nth-child(3) .contact-brief__index { color: var(--magenta); }

.page-contact .contact-brief__item h3 {
  font-family: var(--head);
  font-size: 19px;
  font-weight: 800;
  color: var(--ink);
  margin: 10px 0 0;
}

.page-contact .contact-brief__item p {
  font-size: 15px;
  line-height: 1.78;
  color: var(--ink-2);
  margin: 8px 0 0;
}

/* ---------- 地址 ---------- */
.page-contact .contact-addr {
  padding-top: clamp(48px, 7vw, 86px);
}

.page-contact .contact-addr__box {
  max-width: 660px;
  padding: 24px 22px;
  border: 1px dashed var(--indigo-600);
  border-radius: var(--radius-sm);
  background: rgba(29, 36, 86, .55);
}

.page-contact .contact-addr__value {
  font-family: var(--head);
  font-size: clamp(17px, 2.2vw, 19px);
  font-weight: 700;
  line-height: 1.6;
  color: var(--ink);
  margin: 0;
}

.page-contact .contact-addr__text {
  font-size: 15px;
  line-height: 1.8;
  color: var(--ink-2);
  margin: 14px 0 0;
}

.page-contact .contact-addr__meta {
  font-family: var(--mono);
  font-size: 13px;
  letter-spacing: .02em;
  color: var(--ink-2);
  opacity: .85;
  margin: 16px 0 0;
  padding-top: 14px;
  border-top: 1px solid var(--indigo-600);
}

/* ---------- 合作与建议 ---------- */
.page-contact .contact-collab {
  padding-top: clamp(48px, 7vw, 86px);
}

.page-contact .contact-collab__text {
  margin-top: 0;
}

.page-contact .contact-collab__text + .contact-collab__text {
  margin-top: 16px;
}

.page-contact .contact-collab .px-btn {
  margin-top: 24px;
}

/* ---------- 高频主题 ---------- */
.page-contact .contact-topics {
  padding-top: clamp(48px, 7vw, 86px);
}

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

.page-contact .contact-topic {
  display: grid;
  grid-template-columns: auto 1fr;
  grid-template-rows: auto auto;
  gap: 5px 16px;
  padding: 18px 20px;
  background: var(--indigo-900);
  border: 1px solid var(--indigo-600);
  border-radius: var(--radius-sm);
  text-decoration: none;
  color: inherit;
  transition: border-color .24s var(--ease), transform .24s var(--ease), background-color .24s var(--ease);
}

.page-contact .contact-topic:hover,
.page-contact .contact-topic:focus-visible {
  border-color: var(--cyan);
  background: var(--indigo-800);
  transform: translateX(3px);
}

.page-contact .contact-topic__num {
  grid-row: 1 / span 2;
  font-family: var(--mono);
  font-size: 13px;
  letter-spacing: .06em;
  color: var(--cyan);
  padding-top: 4px;
}

.page-contact .contact-topic__name {
  font-family: var(--head);
  font-size: 17px;
  font-weight: 700;
  color: var(--ink);
}

.page-contact .contact-topic__desc {
  font-size: 14px;
  line-height: 1.65;
  color: var(--ink-2);
}

/* ---------- 底部引导带 ---------- */
.page-contact .contact-banner {
  margin-top: clamp(52px, 8vw, 96px);
  border-top: 1px solid var(--pc-line);
  border-bottom: 1px solid var(--pc-line);
  background: linear-gradient(118deg, var(--indigo-900) 0%, var(--indigo-800) 58%, rgba(63, 240, 216, .14) 100%);
}

.page-contact .contact-banner__inner {
  display: flex;
  flex-direction: column;
  gap: 22px;
  padding-top: clamp(30px, 5vw, 54px);
  padding-bottom: clamp(30px, 5vw, 54px);
}

.page-contact .contact-banner__title {
  font-family: var(--head);
  font-size: clamp(20px, 3vw, 28px);
  font-weight: 800;
  line-height: 1.3;
  color: var(--ink);
  margin: 0;
}

.page-contact .contact-banner__text {
  font-size: 15px;
  line-height: 1.75;
  color: var(--ink-2);
  margin: 10px 0 0;
  max-width: 54ch;
}

.page-contact .contact-banner__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  flex-shrink: 0;
}

/* ---------- 响应式 ---------- */
@media (min-width: 760px) {
  .page-contact .contact-topics__list {
    grid-template-columns: repeat(2, 1fr);
    gap: 14px;
  }
}

@media (min-width: 820px) {
  .page-contact .contact-brief__grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 22px;
  }
}

@media (min-width: 900px) {
  .page-contact .contact-channels__grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 22px;
  }

  .page-contact .contact-timing__grid {
    gap: 44px;
  }
}

@media (min-width: 860px) {
  .page-contact .contact-banner__inner {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
    gap: 40px;
  }
}

/* ---------- 动效 ---------- */
@media (prefers-reduced-motion: no-preference) {
  .page-contact .contact-timeline__item[data-reveal] {
    opacity: 0;
    transform: translateY(12px);
    transition: opacity .32s var(--ease), transform .32s var(--ease);
  }

  .page-contact .contact-timeline__item[data-reveal].is-in {
    opacity: 1;
    transform: none;
  }
}