.page-contact {
  position: relative;
  overflow-x: clip;
  padding-bottom: 24px;
}

.page-contact .contact-crumb {
  padding-top: 28px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--slate-mute);
}

.page-contact .contact-crumb a {
  color: var(--slate-mute);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color .24s var(--ease), border-color .24s var(--ease);
}

.page-contact .contact-crumb a:hover,
.page-contact .contact-crumb a:focus-visible {
  color: var(--signal-cyan);
  border-bottom-color: var(--signal-cyan);
}

/* ---------- hero ---------- */

.page-contact .contact-hero {
  padding-top: 34px;
}

.page-contact .hero-grid {
  display: grid;
  gap: 22px;
}

.page-contact .contact-title {
  margin: 14px 0 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(38px, 10.5vw, 78px);
  line-height: 1.02;
  letter-spacing: -0.02em;
  color: var(--paper-white);
}

.page-contact .title-accent {
  display: inline-block;
  position: relative;
  color: var(--signal-cyan);
}

.page-contact .title-accent::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0.06em;
  height: 3px;
  background: linear-gradient(90deg, var(--signal-cyan), var(--pulse-orange) 70%, transparent);
  border-radius: 1px;
}

.page-contact .hero-lede .lede {
  margin: 0;
  color: var(--slate-mute);
  font-size: 17px;
  line-height: 1.75;
}

.page-contact .contact-visual {
  position: relative;
  margin: 40px 0 0;
  border: 1px solid var(--hairline);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--deep-indigo);
}

.page-contact .contact-visual::after {
  content: "";
  position: absolute;
  inset: auto 0 0 0;
  height: 46%;
  background: linear-gradient(180deg, transparent, rgba(7, 10, 24, .78));
  pointer-events: none;
}

.page-contact .contact-visual img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 12 / 7;
  object-fit: cover;
}

/* ---------- 通用区块骨架 ---------- */

.page-contact .contact-section {
  padding-top: 64px;
}

.page-contact .contact-section-head {
  max-width: 44em;
}

.page-contact .contact-h2 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(24px, 5.4vw, 38px);
  line-height: 1.18;
  letter-spacing: -0.015em;
  color: var(--paper-white);
}

.page-contact .contact-sub {
  margin: 14px 0 0;
  max-width: 38em;
  font-size: 15px;
  line-height: 1.78;
  color: var(--slate-mute);
}

.page-contact .contact-section-head::before {
  content: "";
  display: block;
  width: 56px;
  height: 2px;
  margin-bottom: 18px;
  background: var(--pulse-orange);
}

/* ---------- 渠道卡 ---------- */

.page-contact .channel-grid {
  display: grid;
  gap: 16px;
  margin-top: 32px;
}

.page-contact .channel-card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 13px;
  padding: 26px 22px 22px;
  border: 1px solid var(--hairline);
  border-radius: var(--radius);
  background:
    linear-gradient(165deg, rgba(21, 29, 64, .78) 0%, rgba(19, 26, 58, .96) 62%, rgba(7, 10, 24, .98) 100%);
  transition: border-color .32s var(--ease), box-shadow .32s var(--ease), transform .32s var(--ease);
}

.page-contact .channel-card::after {
  content: "";
  position: absolute;
  inset: 0 auto auto 0;
  width: 46px;
  height: 2px;
  background: var(--signal-cyan);
}

.page-contact .channel-card--tel::after { background: var(--pulse-orange); }
.page-contact .channel-card--addr::after { background: var(--neon-violet); }

.page-contact .channel-card:hover,
.page-contact .channel-card:focus-within {
  border-color: var(--signal-cyan);
  box-shadow: 0 0 0 1px rgba(53, 230, 210, .3), 0 20px 44px rgba(4, 6, 16, .62);
  transform: translateY(-3px);
}

.page-contact .channel-card--tel:hover,
.page-contact .channel-card--tel:focus-within {
  border-color: var(--pulse-orange);
  box-shadow: 0 0 0 1px rgba(255, 122, 47, .3), 0 20px 44px rgba(4, 6, 16, .62);
}

.page-contact .channel-card--addr:hover,
.page-contact .channel-card--addr:focus-within {
  border-color: var(--neon-violet);
  box-shadow: 0 0 0 1px rgba(166, 107, 255, .3), 0 20px 44px rgba(4, 6, 16, .62);
}

.page-contact .channel-value {
  margin: 4px 0 0;
  font-family: var(--font-mono);
  font-size: 17px;
  font-weight: 600;
  line-height: 1.5;
  color: var(--paper-white);
  word-break: break-word;
}

.page-contact .channel-value--mail {
  font-size: clamp(15px, 4.1vw, 18px);
  color: var(--signal-cyan);
}

.page-contact .channel-value--num {
  font-size: clamp(24px, 7vw, 32px);
  letter-spacing: .01em;
  color: var(--pulse-orange);
}

.page-contact .channel-value--addr {
  font-size: 14px;
  font-weight: 400;
  line-height: 1.85;
  color: var(--paper-white);
}

.page-contact .channel-scene {
  margin: 0;
  flex: 1 1 auto;
  font-size: 14px;
  line-height: 1.78;
  color: var(--slate-mute);
}

.page-contact .channel-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 4px;
}

.page-contact .copy-chip {
  display: inline-flex;
  align-items: center;
  padding: 7px 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .06em;
  line-height: 1.2;
  color: var(--signal-cyan);
  background: transparent;
  border: 1px solid var(--hairline);
  border-radius: var(--radius);
  text-decoration: none;
  cursor: pointer;
  -webkit-appearance: none;
  appearance: none;
  transition: border-color .24s var(--ease), color .24s var(--ease), background-color .24s var(--ease);
}

.page-contact .copy-chip:hover,
.page-contact .copy-chip:focus-visible {
  border-color: var(--signal-cyan);
  background: rgba(53, 230, 210, .1);
  outline: none;
}

.page-contact .copy-chip[data-copied] {
  color: var(--mint-ok);
  border-color: var(--mint-ok);
  background: rgba(62, 213, 152, .1);
}

.page-contact .copy-chip--call {
  color: var(--pulse-orange);
  border-color: rgba(255, 122, 47, .45);
}

.page-contact .copy-chip--call:hover,
.page-contact .copy-chip--call:focus-visible {
  border-color: var(--pulse-orange);
  background: rgba(255, 122, 47, .12);
}

.page-contact .copy-chip--link {
  color: var(--slate-mute);
}

/* ---------- 回复节奏 ---------- */

.page-contact .rhythm-list {
  margin-top: 28px;
  border-bottom: 1px solid var(--hairline);
}

.page-contact .rhythm-item {
  display: grid;
  gap: 6px;
  padding: 22px 0;
  border-top: 1px solid var(--hairline);
}

.page-contact .rhythm-num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .16em;
  color: var(--signal-cyan);
}

.page-contact .rhythm-title {
  margin: 0;
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 700;
  line-height: 1.4;
  color: var(--paper-white);
}

.page-contact .rhythm-desc {
  margin: 0;
  font-size: 14px;
  line-height: 1.78;
  color: var(--slate-mute);
}

/* ---------- 斜向分隔带 ---------- */

.page-contact .diagonal-divider {
  height: 64px;
  margin-top: 64px;
  background:
    linear-gradient(96deg, transparent 0 46%, rgba(53, 230, 210, .5) 46% 46.4%, transparent 46.4% 100%),
    linear-gradient(96deg, transparent 0 62%, rgba(166, 107, 255, .42) 62% 62.4%, transparent 62.4% 100%);
  border-top: 1px solid var(--hairline);
  border-bottom: 1px solid var(--hairline);
}

/* ---------- 反馈提交方阵 ---------- */

.page-contact .feedback-grid {
  display: grid;
  gap: 28px;
  margin-top: 32px;
}

.page-contact .brief-matrix {
  list-style: none;
  display: grid;
  gap: 1px;
  margin: 0;
  padding: 0;
  background: var(--hairline);
  border: 1px solid var(--hairline);
}

.page-contact .brief-matrix li {
  position: relative;
  padding: 22px 20px 24px;
  background: var(--deep-indigo);
}

.page-contact .brief-matrix li::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 3px;
  height: 100%;
  background: linear-gradient(180deg, var(--signal-cyan), transparent);
  opacity: .5;
}

.page-contact .brief-idx {
  display: block;
  font-family: var(--font-mono);
  font-size: 22px;
  font-weight: 600;
  letter-spacing: .04em;
  color: rgba(53, 230, 210, .55);
}

.page-contact .brief-title {
  margin: 8px 0 0;
  font-family: var(--font-display);
  font-size: 16px;
  font-weight: 700;
  color: var(--paper-white);
}

.page-contact .brief-desc {
  margin: 8px 0 0;
  font-size: 14px;
  line-height: 1.76;
  color: var(--slate-mute);
}

.page-contact .feedback-visual {
  margin: 0;
  border: 1px solid var(--hairline);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--deep-indigo);
}

.page-contact .feedback-visual img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 5 / 4;
  object-fit: cover;
}

.page-contact .feedback-visual figcaption {
  padding: 12px 16px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .05em;
  color: var(--slate-mute);
  border-top: 1px solid var(--hairline);
}

/* ---------- 查询定位 ---------- */

.page-contact .query-grid {
  display: grid;
  gap: 16px;
  margin-top: 30px;
}

.page-contact .query-card {
  padding: 24px 20px 20px;
  border: 1px solid var(--hairline);
  border-radius: var(--radius);
  background: var(--deep-indigo);
}

.page-contact .query-list {
  list-style: none;
  margin: 16px 0 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-contact .query-list li {
  display: grid;
  gap: 4px;
  padding-bottom: 12px;
  border-bottom: 1px dashed rgba(42, 51, 88, .9);
}

.page-contact .query-list li:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}

.page-contact .query-k {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--signal-cyan);
}

.page-contact .query-card:nth-child(2) .query-k {
  color: var(--neon-violet);
}

.page-contact .query-v {
  font-size: 14px;
  line-height: 1.72;
  color: var(--paper-white);
}

.page-contact .query-note {
  margin: 26px 0 0;
  max-width: 40em;
  font-size: 14px;
  line-height: 1.8;
  color: var(--slate-mute);
}

.page-contact .link-arrow {
  display: inline-block;
  margin-top: 14px;
  font-size: 14px;
  color: var(--signal-cyan);
  text-decoration: none;
  border-bottom: 2px solid rgba(53, 230, 210, .45);
  padding-bottom: 2px;
  transition: border-color .24s var(--ease), color .24s var(--ease);
}

.page-contact .link-arrow:hover,
.page-contact .link-arrow:focus-visible {
  border-bottom-color: var(--pulse-orange);
  color: var(--pulse-orange);
  outline: none;
}

/* ---------- 合作 ---------- */

.page-contact .partner-grid {
  display: grid;
  gap: 24px;
  margin-top: 30px;
}

.page-contact .partner-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0;
  border-top: 1px solid var(--hairline);
}

.page-contact .partner-list li {
  position: relative;
  padding: 16px 0 16px 30px;
  border-bottom: 1px solid var(--hairline);
  font-size: 14px;
  line-height: 1.75;
  color: var(--paper-white);
}

.page-contact .partner-list li::before {
  content: "";
  position: absolute;
  left: 4px;
  top: 25px;
  width: 10px;
  height: 10px;
  border: 1px solid var(--signal-cyan);
  transform: rotate(45deg);
}

.page-contact .partner-side p {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--slate-mute);
}

.page-contact .partner-cta {
  display: grid;
  gap: 16px;
  margin-top: 30px;
  padding: 24px 20px;
  border: 1px solid var(--hairline);
  border-left: 3px solid var(--pulse-orange);
  border-radius: var(--radius);
  background: rgba(21, 29, 64, .62);
}

.page-contact .partner-cta-text {
  margin: 0;
  font-size: 15px;
  line-height: 1.72;
  color: var(--paper-white);
}

.page-contact .partner-cta .mono {
  font-family: var(--font-mono);
  color: var(--signal-cyan);
  word-break: break-all;
}

.page-contact .partner-cta .btn {
  text-decoration: none;
}

/* ---------- 收尾 ---------- */

.page-contact .contact-legal {
  margin: 60px 0 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .06em;
  line-height: 1.9;
  color: var(--slate-mute);
}

.page-contact .contact-ruler {
  position: relative;
  height: 26px;
  margin-top: 14px;
  border-top: 1px solid var(--hairline);
  background-image: repeating-linear-gradient(
    90deg,
    rgba(42, 51, 88, .95) 0 1px,
    transparent 1px 24px
  );
}

.page-contact .contact-ruler::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 68px;
  height: 2px;
  background: var(--signal-cyan);
}

/* ---------- 中等屏 ---------- */

@media (min-width: 700px) {
  .page-contact .contact-hero { padding-top: 44px; }

  .page-contact .channel-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 20px;
  }

  .page-contact .brief-matrix {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-contact .query-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 20px;
  }

  .page-contact .partner-grid {
    grid-template-columns: minmax(0, 1.2fr) minmax(0, 1fr);
    gap: 40px;
    align-items: start;
  }

  .page-contact .partner-cta {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
    padding: 26px 28px;
  }

  .page-contact .rhythm-item {
    grid-template-columns: 44px minmax(0, 232px) minmax(0, 1fr);
    align-items: baseline;
    gap: 0 20px;
  }
}

/* ---------- 桌面 ---------- */

@media (min-width: 960px) {
  .page-contact .contact-section { padding-top: 92px; }

  .page-contact .hero-grid {
    grid-template-columns: repeat(12, minmax(0, 1fr));
    column-gap: var(--gutter);
    align-items: end;
  }

  .page-contact .hero-grid > .hero-title {
    grid-column: 1 / span 7;
  }

  .page-contact .hero-grid > .hero-lede {
    grid-column: 9 / span 4;
    padding-bottom: 12px;
  }

  .page-contact .contact-hero { padding-top: 56px; }

  .page-contact .contact-visual { margin-top: 52px; }

  .page-contact .channel-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: var(--gutter);
    margin-top: 40px;
  }

  .page-contact .channel-card { padding: 30px 26px 26px; }

  .page-contact .feedback-grid {
    grid-template-columns: minmax(0, 1.32fr) minmax(0, 1fr);
    gap: 40px;
    align-items: start;
    margin-top: 40px;
  }

  .page-contact .brief-matrix li { padding: 26px 26px 28px; }

  .page-contact .diagonal-divider { margin-top: 92px; height: 76px; }

  .page-contact .rhythm-list { margin-top: 36px; }

  .page-contact .contact-legal { margin-top: 88px; }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .channel-card,
  .page-contact .copy-chip,
  .page-contact .link-arrow,
  .page-contact .contact-crumb a {
    transition: none;
  }

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