.page-contact {
  --ct-line: rgba(10, 26, 51, 0.14);
  --ct-line-soft: rgba(10, 26, 51, 0.08);
  --ct-line-dark: rgba(111, 211, 206, 0.26);
  --ct-dash: rgba(111, 211, 206, 0.42);
  background: var(--yx-paper);
  color: var(--yx-ink);
  overflow-x: hidden;
}

.page-contact .yx-mono {
  font-family: var(--yx-mono);
  font-weight: 700;
  letter-spacing: 0;
}

.page-contact .ct-horizon {
  height: 1px;
  background: linear-gradient(90deg,
    transparent 0%,
    var(--yx-lake-soft) 20%,
    var(--yx-lake) 48%,
    var(--yx-orange) 76%,
    transparent 100%);
  opacity: 0.7;
}

/* ---------- 首屏 ---------- */
.page-contact .ct-hero {
  position: relative;
  background: var(--yx-paper);
  padding: 28px 0 48px;
}

.page-contact .ct-hero::after {
  content: "";
  position: absolute;
  top: -140px;
  right: -160px;
  width: 420px;
  height: 420px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(15, 163, 160, 0.14), transparent 68%);
  pointer-events: none;
}

.page-contact .ct-hero__inner {
  position: relative;
}

.page-contact .ct-hero__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 22px;
  margin-top: 22px;
}

.page-contact .ct-hero__title {
  margin: 8px 0 0;
  font-size: clamp(28px, 7vw, 50px);
  line-height: 1.14;
  font-weight: 900;
  letter-spacing: -0.022em;
  color: var(--yx-night);
  transform: skewX(var(--yx-tilt));
  transform-origin: left bottom;
  max-width: 16em;
}

.page-contact .ct-hero__side {
  border-left: 1px solid var(--yx-lake);
  padding-left: 18px;
}

.page-contact .ct-hero__hint {
  margin: 14px 0 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--yx-ink-2);
}

/* ---------- 三类需求 ---------- */
.page-contact .ct-needs {
  background: var(--yx-mist);
  padding: clamp(48px, 7vw, 84px) 0;
}

.page-contact .ct-needs__head {
  max-width: 660px;
}

.page-contact .ct-needs__intro {
  margin: 14px 0 0;
  font-size: 16px;
  line-height: 1.78;
  color: var(--yx-ink);
}

.page-contact .ct-needs__figure {
  margin: 32px 0 0;
  border: 1px solid var(--ct-line);
  border-radius: var(--yx-radius-lg);
  overflow: hidden;
  background: var(--yx-night);
  box-shadow: var(--yx-shadow);
}

.page-contact .ct-needs__figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
}

.page-contact .ct-needs__figure .yx-media__caption {
  display: block;
  padding: 12px 18px;
  margin: 0;
  font-size: 13px;
  line-height: 1.6;
  color: var(--yx-lake-soft);
  background: var(--yx-night);
}

.page-contact .ct-cards {
  list-style: none;
  margin: 26px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
}

.page-contact .ct-card {
  display: flex;
  flex-direction: column;
  background: #fff;
  border: 1px solid var(--ct-line);
  border-radius: var(--yx-radius);
  padding: 22px 20px 18px;
  box-shadow: var(--yx-shadow);
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

.page-contact .ct-card:hover,
.page-contact .ct-card:focus-within {
  transform: translateY(-2px);
  border-color: var(--yx-lake);
  box-shadow: 0 14px 34px rgba(8, 20, 38, 0.16);
}

.page-contact .ct-card__icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  margin-bottom: 14px;
  border: 1px solid rgba(15, 163, 160, 0.45);
  border-radius: 10px;
  color: var(--yx-lake);
}

.page-contact .ct-card__icon svg {
  display: block;
  width: 20px;
  height: 20px;
}

.page-contact .ct-card__title {
  margin: 0 0 10px;
  font-size: 19px;
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--yx-night);
}

.page-contact .ct-card__for {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.72;
  color: var(--yx-ink);
}

.page-contact .ct-card__list {
  max-height: 0;
  opacity: 0;
  overflow: hidden;
  margin-top: 0;
  transition: max-height 0.24s ease, opacity 0.2s ease, margin-top 0.2s ease;
}

.page-contact .ct-card:hover .ct-card__list,
.page-contact .ct-card:focus-within .ct-card__list {
  max-height: 300px;
  opacity: 1;
  margin-top: 16px;
}

.page-contact .ct-card__list-title {
  margin: 0 0 8px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.14em;
  color: var(--yx-lake);
}

.page-contact .ct-card__list ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 6px;
}

.page-contact .ct-card__list li {
  position: relative;
  padding-left: 14px;
  font-size: 13.5px;
  line-height: 1.62;
  color: var(--yx-ink-2);
}

.page-contact .ct-card__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 8px;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--yx-lake-soft);
}

@media (hover: none) {
  .page-contact .ct-card__list {
    max-height: 340px;
    opacity: 1;
    margin-top: 16px;
  }
}

/* ---------- 渠道 ---------- */
.page-contact .ct-channels {
  position: relative;
  background: var(--yx-night);
  color: var(--yx-paper);
  padding: clamp(52px, 8vw, 96px) 0;
  overflow: hidden;
}

.page-contact .ct-channels::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(620px 320px at 10% 0%, rgba(15, 163, 160, 0.24), transparent 70%),
    radial-gradient(520px 280px at 94% 100%, rgba(255, 106, 23, 0.16), transparent 72%);
  pointer-events: none;
}

.page-contact .ct-channels__inner {
  position: relative;
}

.page-contact .ct-channels .yx-eyebrow {
  color: var(--yx-lake-soft);
}

.page-contact .ct-channels .yx-h2 {
  color: var(--yx-paper);
}

.page-contact .ct-channels__head {
  max-width: 640px;
}

.page-contact .ct-channels__intro {
  margin: 14px 0 0;
  font-size: 16px;
  line-height: 1.78;
  color: rgba(245, 247, 246, 0.76);
}

.page-contact .ct-channels__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 30px;
  margin-top: 34px;
}

.page-contact .ct-chan {
  padding-bottom: 22px;
  border-bottom: 1px dashed var(--ct-dash);
}

.page-contact .ct-chan__label {
  margin: 0;
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--yx-lake-soft);
}

.page-contact .ct-chan__value {
  margin: 10px 0 14px;
  padding-bottom: 14px;
  font-size: clamp(19px, 4.4vw, 28px);
  line-height: 1.3;
  color: var(--yx-paper);
  word-break: break-all;
  border-bottom: 1px dashed var(--ct-dash);
}

.page-contact .ct-chan__note {
  margin: 0;
  font-size: 15px;
  line-height: 1.78;
  color: rgba(245, 247, 246, 0.72);
}

/* ---------- 回复时长 ---------- */
.page-contact .ct-reply {
  background: var(--yx-paper);
  padding: clamp(52px, 8vw, 96px) 0;
}

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

.page-contact .ct-reply__text p {
  margin: 14px 0 0;
  font-size: 16px;
  line-height: 1.78;
  color: var(--yx-ink);
  max-width: 44em;
}

.page-contact .ct-reply__figure {
  border-left: 2px solid var(--yx-orange);
  padding: 6px 0 6px 20px;
}

.page-contact .ct-reply__big {
  margin: 0;
  font-size: clamp(62px, 14vw, 108px);
  line-height: 0.92;
  color: var(--yx-night);
  letter-spacing: -0.03em;
}

.page-contact .ct-reply__big span {
  margin-left: 8px;
  font-size: 0.24em;
  font-weight: 500;
  letter-spacing: 0.04em;
  color: var(--yx-lake);
}

.page-contact .ct-reply__cap {
  margin: 12px 0 0;
  font-size: 13px;
  line-height: 1.6;
  color: var(--yx-ink-2);
}

.page-contact .ct-reply__how {
  margin-top: 44px;
  padding-top: 28px;
  border-top: 1px solid var(--ct-line);
}

.page-contact .ct-reply__how .yx-h3 {
  margin: 0;
  color: var(--yx-night);
}

.page-contact .ct-reply__steps {
  list-style: none;
  margin: 20px 0 0;
  padding: 0;
  display: grid;
  gap: 0;
}

.page-contact .ct-reply__steps li {
  display: grid;
  grid-template-columns: 40px 1fr;
  gap: 14px;
  align-items: start;
  padding: 14px 0;
  border-bottom: 1px solid var(--ct-line-soft);
  font-size: 15px;
  line-height: 1.72;
  color: var(--yx-ink);
}

.page-contact .ct-reply__num {
  font-size: 15px;
  color: var(--yx-lake);
  line-height: 1.72;
}

/* ---------- 合作与纠错 ---------- */
.page-contact .ct-collab {
  background: var(--yx-mist);
  padding: clamp(52px, 8vw, 96px) 0;
}

.page-contact .ct-collab__head {
  max-width: 620px;
}

.page-contact .ct-collab__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
  margin-top: 30px;
}

.page-contact .ct-collab__col {
  background: #fff;
  border: 1px solid var(--ct-line);
  border-radius: var(--yx-radius);
  padding: 24px 20px;
  box-shadow: var(--yx-shadow);
}

.page-contact .ct-collab__col .yx-h3 {
  margin: 0 0 12px;
  color: var(--yx-night);
}

.page-contact .ct-collab__col p {
  margin: 0 0 18px;
  font-size: 15px;
  line-height: 1.78;
  color: var(--yx-ink);
}

.page-contact .ct-flow {
  margin: 0;
  padding-left: 20px;
  display: grid;
  gap: 10px;
  font-size: 14px;
  line-height: 1.72;
  color: var(--yx-ink);
}

.page-contact .ct-flow li::marker {
  color: var(--yx-lake);
  font-family: var(--yx-mono);
  font-weight: 700;
}

.page-contact .yx-accordion__body {
  font-size: 14px;
}

/* ---------- 通信地址与备案 ---------- */
.page-contact .ct-place {
  position: relative;
  background: linear-gradient(180deg, var(--yx-paper) 0%, #EBF4F3 100%);
  padding: clamp(52px, 8vw, 96px) 0 clamp(44px, 6vw, 72px);
}

.page-contact .ct-place__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
  align-items: start;
}

.page-contact .ct-place__intro p {
  margin: 14px 0 0;
  font-size: 15.5px;
  line-height: 1.8;
  color: var(--yx-ink);
  max-width: 40em;
}

.page-contact .ct-meta {
  margin: 0;
  display: grid;
  gap: 0;
  border-top: 1px solid var(--ct-line);
}

.page-contact .ct-meta__row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 4px;
  padding: 14px 0;
  border-bottom: 1px solid var(--ct-line-soft);
}

.page-contact .ct-meta__row dt {
  font-size: 13px;
  letter-spacing: 0.1em;
  color: var(--yx-ink-2);
}

.page-contact .ct-meta__row dd {
  margin: 0;
  font-size: 15px;
  line-height: 1.7;
  color: var(--yx-ink);
  word-break: break-word;
}

.page-contact .ct-place__texture {
  margin: 40px 0 0;
  border: 1px solid var(--ct-line);
  border-radius: var(--yx-radius-lg);
  overflow: hidden;
  box-shadow: var(--yx-shadow);
}

.page-contact .ct-place__texture img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-contact .ct-meta__row {
    grid-template-columns: 120px 1fr;
    align-items: baseline;
  }

  .page-contact .ct-meta__row dd {
    text-align: right;
  }
}

@media (min-width: 860px) {
  .page-contact .ct-hero {
    padding: 36px 0 64px;
  }

  .page-contact .ct-hero__grid {
    grid-template-columns: minmax(0, 1.3fr) minmax(0, 1fr);
    gap: 56px;
    align-items: end;
    margin-top: 28px;
  }

  .page-contact .ct-cards {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 20px;
  }

  .page-contact .ct-channels__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 44px;
  }

  .page-contact .ct-collab__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 28px;
  }

  .page-contact .ct-place__grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr);
    gap: 64px;
  }
}

@media (min-width: 1024px) {
  .page-contact .ct-reply__grid {
    grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr);
    gap: 64px;
  }

  .page-contact .ct-collab__col {
    padding: 30px 28px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .ct-card,
  .page-contact .ct-card__list {
    transition: none;
  }

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