.page-contact {
  --pc-panel: rgba(14, 22, 38, 0.72);
  --pc-hover-line: rgba(63, 224, 208, 0.55);
  --pc-hover-glow: 0 22px 46px -28px rgba(63, 224, 208, 0.5);
  padding-bottom: clamp(40px, 7vw, 88px);
}

/* ---------- 面包屑与首屏 ---------- */

.page-contact .crumbs {
  margin: clamp(18px, 3vw, 28px) 0 0;
}

.page-contact .contact-lead {
  position: relative;
  overflow: hidden;
  border-bottom: 1px solid var(--line);
  background:
    radial-gradient(74% 82% at 88% 2%, rgba(63, 224, 208, 0.13), transparent 62%),
    radial-gradient(62% 72% at 4% 0%, rgba(240, 71, 154, 0.1), transparent 58%);
}

.page-contact .contact-lead-grid {
  display: grid;
  gap: clamp(26px, 5vw, 52px);
  align-items: center;
  padding-block: clamp(28px, 6vw, 64px) clamp(34px, 6vw, 76px);
}

.page-contact .contact-lead h1 {
  margin: 14px 0 0;
  font-size: clamp(32px, 6.4vw, 58px);
  line-height: 1.1;
  letter-spacing: -0.02em;
  color: var(--fg);
}

.page-contact .contact-lead-text {
  margin: 20px 0 0;
  max-width: 34em;
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.85;
  color: var(--fg-2);
}

.page-contact .contact-lead-actions {
  margin-top: clamp(24px, 3.5vw, 32px);
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.page-contact .contact-visual {
  position: relative;
  padding: clamp(16px, 2.6vw, 26px);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  background: var(--grad-veil), var(--glass);
  backdrop-filter: blur(10px);
  overflow: hidden;
}

.page-contact .contact-visual::after {
  content: "";
  position: absolute;
  inset: auto 0 0 0;
  height: 2px;
  background: var(--grad-signal);
  opacity: 0.85;
}

.page-contact .contact-visual-tag {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.22em;
  color: var(--fg-2);
}

.page-contact .contact-visual svg {
  display: block;
  width: 100%;
  height: auto;
}

/* ---------- 章节骨架 ---------- */

.page-contact .sec {
  padding-block: clamp(42px, 7vw, 82px);
  border-bottom: 1px solid rgba(34, 48, 74, 0.6);
}

.page-contact > section:last-of-type {
  border-bottom: 0;
}

.page-contact .sec-head {
  max-width: 46em;
}

.page-contact .section-title {
  margin: 10px 0 0;
  color: var(--fg);
}

.page-contact .sec-head .prose,
.page-contact .prepare-intro .prose,
.page-contact .identity-copy .prose {
  margin: 16px 0 0;
  color: var(--fg-2);
  font-size: 16px;
  line-height: 1.85;
}

/* ---------- 渠道卡 ---------- */

.page-contact .channel-grid {
  display: grid;
  gap: 18px;
  margin-top: clamp(26px, 4vw, 40px);
}

.page-contact .channel-card {
  position: relative;
  padding: clamp(22px, 3.2vw, 34px);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  background: var(--glass);
  backdrop-filter: blur(12px);
  transition: transform 0.22s var(--ease), border-color 0.22s var(--ease), box-shadow 0.22s var(--ease);
}

.page-contact .channel-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: clamp(22px, 3.2vw, 34px);
  width: 62px;
  height: 3px;
  border-radius: 0 0 3px 3px;
  background: var(--grad-signal);
}

.page-contact .channel-card:hover,
.page-contact .channel-card:focus-within {
  transform: translateY(-4px);
  border-color: var(--pc-hover-line);
  box-shadow: var(--pc-hover-glow);
}

.page-contact .channel-tag {
  margin: 6px 0 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.24em;
  color: var(--cy);
}

.page-contact .channel-name {
  margin: 10px 0 0;
  font-size: 20px;
  font-weight: 700;
  color: var(--fg);
}

.page-contact .channel-value {
  margin: 14px 0 0;
  font-family: var(--font-mono);
  font-size: clamp(19px, 3.4vw, 28px);
  font-weight: 500;
  letter-spacing: 0.02em;
  line-height: 1.3;
  color: var(--cy-soft);
  word-break: break-all;
  -webkit-user-select: all;
  user-select: all;
}

.page-contact .channel-meta {
  margin: 22px 0 0;
  padding-top: 18px;
  border-top: 1px solid var(--line);
  display: grid;
  gap: 6px;
}

.page-contact .channel-meta dt {
  margin-top: 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--cy);
}

.page-contact .channel-meta dt:first-child {
  margin-top: 0;
}

.page-contact .channel-meta dd {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--fg-2);
}

/* ---------- 配图 ---------- */

.page-contact .contact-figure {
  margin: clamp(28px, 4.5vw, 46px) 0 0;
}

.page-contact .contact-figure .media {
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  overflow: hidden;
  background: var(--ink-1);
}

.page-contact .contact-figure img {
  display: block;
  width: 100%;
  height: auto;
}

.page-contact .media-caption {
  margin-top: 12px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--fg-2);
}

/* ---------- 时间带 ---------- */

.page-contact .hour-band {
  margin-top: clamp(26px, 4vw, 42px);
}

.page-contact .hour-track {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 6px;
  height: 12px;
  border-radius: 999px;
  background: var(--grad-signal);
  box-shadow: 0 0 30px -10px rgba(63, 224, 208, 0.6);
}

.page-contact .hour-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--ink-0);
  border: 1.5px solid rgba(244, 247, 251, 0.85);
}

.page-contact .hour-axis {
  display: flex;
  justify-content: space-between;
  padding: 0 6px;
  margin-top: 12px;
  color: var(--fg-2);
}

.page-contact .hour-axis .meta {
  font-size: 12px;
  letter-spacing: 0.06em;
}

.page-contact .hour-notes {
  margin-top: clamp(24px, 3.5vw, 34px);
  display: grid;
  gap: 14px;
}

.page-contact .hour-note {
  padding: 18px 20px;
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  background: var(--pc-panel);
}

.page-contact .hour-note h3 {
  margin: 0 0 8px;
  font-size: 16px;
  font-weight: 700;
  color: var(--cy-soft);
}

.page-contact .hour-note p {
  margin: 0;
  font-size: 14px;
  line-height: 1.78;
  color: var(--fg-2);
}

/* ---------- 提交清单 ---------- */

.page-contact .prepare-grid {
  display: grid;
  gap: clamp(26px, 4vw, 52px);
}

.page-contact .prepare-order {
  margin: 20px 0 0;
  padding: 14px 18px;
  border-left: 3px solid var(--cy);
  border-radius: 0 var(--r-sm) var(--r-sm) 0;
  background: rgba(63, 224, 208, 0.07);
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.04em;
  line-height: 1.7;
  color: var(--cy-soft);
}

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

.page-contact .prep-item {
  display: grid;
  grid-template-columns: 44px 1fr;
  gap: 14px;
  padding: 20px 0;
  border-top: 1px solid var(--line);
}

.page-contact .prep-item:last-child {
  border-bottom: 1px solid var(--line);
}

.page-contact .prep-num {
  padding-top: 4px;
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.1em;
  color: var(--cy);
}

.page-contact .prep-body h3 {
  margin: 0 0 6px;
  font-size: 17px;
  font-weight: 700;
  color: var(--fg);
}

.page-contact .prep-body p {
  margin: 0;
  font-size: 15px;
  line-height: 1.78;
  color: var(--fg-2);
}

/* ---------- 站点身份 ---------- */

.page-contact .identity-grid {
  display: grid;
  gap: clamp(26px, 4vw, 48px);
}

.page-contact .id-list {
  margin: 0;
  display: grid;
  gap: 1px;
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  background: var(--line);
  overflow: hidden;
}

.page-contact .id-row {
  background: var(--ink-1);
  padding: 16px 18px;
  display: grid;
  gap: 6px;
}

.page-contact .id-row dt {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.14em;
  color: var(--fg-2);
}

.page-contact .id-row dd {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 14px;
  letter-spacing: 0.02em;
  line-height: 1.65;
  color: var(--fg);
  word-break: break-word;
}

/* ---------- 相关入口 ---------- */

.page-contact .link-grid {
  margin-top: clamp(24px, 3.5vw, 36px);
  display: grid;
  gap: 14px;
}

.page-contact .link-tile {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 20px 20px 18px;
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  background: var(--glass);
  text-decoration: none;
  transition: border-color 0.2s var(--ease), transform 0.2s var(--ease), box-shadow 0.2s var(--ease);
}

.page-contact .link-tile:hover,
.page-contact .link-tile:focus-visible {
  transform: translateY(-3px);
  border-color: var(--pc-hover-line);
  box-shadow: var(--pc-hover-glow);
}

.page-contact .link-tile-kicker {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--cy);
}

.page-contact .link-tile-title {
  font-size: 15px;
  line-height: 1.7;
  color: var(--fg);
}

.page-contact .link-tile-arrow {
  margin-top: auto;
  font-size: 16px;
  color: var(--fg-2);
  transition: color 0.2s var(--ease), transform 0.2s var(--ease);
}

.page-contact .link-tile:hover .link-tile-arrow,
.page-contact .link-tile:focus-visible .link-tile-arrow {
  color: var(--cy-soft);
  transform: translateX(4px);
}

/* ---------- 响应式 ---------- */

@media (min-width: 620px) {
  .page-contact .channel-meta {
    grid-template-columns: 108px 1fr;
    column-gap: 16px;
  }

  .page-contact .channel-meta dt {
    margin-top: 0;
  }

  .page-contact .channel-meta dd {
    margin-bottom: 14px;
  }

  .page-contact .channel-meta dd:last-child {
    margin-bottom: 0;
  }

  .page-contact .id-row {
    grid-template-columns: 104px 1fr;
    align-items: baseline;
    gap: 16px;
  }

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

@media (min-width: 760px) {
  .page-contact .hour-notes {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-contact .contact-lead-grid {
    grid-template-columns: 1.05fr 0.95fr;
  }

  .page-contact .channel-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 22px;
  }

  .page-contact .prepare-grid {
    grid-template-columns: 0.85fr 1.15fr;
  }

  .page-contact .identity-grid {
    grid-template-columns: 0.92fr 1.08fr;
    align-items: start;
  }
}

@media (min-width: 1060px) {
  .page-contact .link-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (max-width: 400px) {
  .page-contact .channel-value {
    font-size: 18px;
  }

  .page-contact .prep-item {
    grid-template-columns: 34px 1fr;
    gap: 10px;
  }
}

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

  .page-contact .channel-card:hover,
  .page-contact .link-tile:hover {
    transform: none;
  }
}