/* ========== 联系我们 ========== */
.page-contact {
  --contact-gap: 20px;
  --contact-link-line: rgba(43, 230, 214, 0.38);
}

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  position: relative;
  padding-top: 28px;
  background-image: var(--grad-lamp);
  background-repeat: no-repeat;
  background-position: top left;
}

.page-contact .breadcrumbs {
  margin-bottom: 22px;
}

.page-contact .contact-hero-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
  align-items: start;
}

.page-contact .contact-eyebrow {
  margin: 0 0 14px;
  font-size: 12px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--cyan);
}

.page-contact .contact-hero h1 {
  margin: 0 0 18px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(28px, 7.2vw, 58px);
  line-height: 1.14;
  letter-spacing: -0.01em;
  color: var(--white);
  max-width: 20em;
}

.page-contact .contact-lede {
  margin: 0;
  max-width: 60ch;
  font-size: 16px;
  line-height: 1.8;
  color: var(--muted);
}

.page-contact .contact-lede--sub {
  margin-top: 12px;
}

.page-contact .contact-lede a,
.page-contact .section-sub a,
.page-contact .board-note a,
.page-contact .scene-a a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 2px solid var(--contact-link-line);
  transition: border-color 0.2s var(--ease), color 0.2s var(--ease);
}

.page-contact .contact-lede a:hover,
.page-contact .section-sub a:hover,
.page-contact .board-note a:hover,
.page-contact .scene-a a:hover {
  color: var(--cyan-soft);
  border-bottom-color: var(--cyan);
}

.page-contact .contact-side {
  display: none;
}

.page-contact .contact-banner {
  margin: 30px 0 0;
}

.page-contact .contact-banner img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  border-radius: calc(var(--radius-card) - 6px);
}

/* ---------- 通用小标题 ---------- */
.page-contact .section-head {
  margin-bottom: 20px;
}

.page-contact .section-sub {
  margin: 10px 0 0;
  max-width: 58ch;
  font-size: 15px;
  line-height: 1.75;
  color: var(--muted);
}

/* ---------- 渠道卡片 ---------- */
.page-contact .channel-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--contact-gap);
}

.page-contact .channel-card {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 24px 22px 26px;
  border: var(--border);
  border-radius: var(--radius-card);
  background: var(--ink-800);
  box-shadow: var(--shadow-hard-sm);
  transition: transform 0.25s var(--ease), box-shadow 0.25s var(--ease), border-color 0.25s var(--ease);
}

.page-contact .channel-card:hover {
  transform: translateY(-4px);
  box-shadow: 3px 3px 0 rgba(36, 64, 111, 0.9);
  border-color: var(--cyan);
}

.page-contact .channel-card--mail {
  border-color: var(--cyan);
  background-image: linear-gradient(150deg, rgba(43, 230, 214, 0.18) 0%, rgba(5, 11, 26, 0) 68%), var(--ink-800);
}

.page-contact .channel-label {
  margin: 0;
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--muted);
}

.page-contact .channel-value {
  margin: 0;
  font-family: var(--font-mono);
  font-size: clamp(18px, 2.3vw, 23px);
  line-height: 1.35;
  letter-spacing: 0.01em;
  word-break: break-word;
}

.page-contact .channel-value--mail {
  color: var(--cyan);
  word-break: break-all;
}

.page-contact .channel-value--phone {
  color: var(--cyan-soft);
  font-variant-numeric: tabular-nums;
}

.page-contact .channel-value--addr {
  font-family: var(--font-body);
  font-weight: 700;
  font-size: 18px;
  color: var(--white);
}

.page-contact .channel-desc {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--muted);
}

.page-contact .channel-for {
  margin: auto 0 0;
  padding-top: 12px;
  border-top: var(--border-thin);
  font-size: 13px;
  line-height: 1.7;
  letter-spacing: 0.03em;
  color: var(--muted);
}

/* ---------- 来信指引 ---------- */
.page-contact .guide-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 26px;
  align-items: start;
}

.page-contact .guide-panels {
  margin-top: 20px;
}

.page-contact [data-tabpanel][hidden] {
  display: none;
}

.page-contact .panel-lead {
  margin: 0 0 4px;
  font-size: 15px;
  line-height: 1.75;
  color: var(--muted);
}

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

.page-contact .checklist li {
  position: relative;
  padding-left: 28px;
  font-size: 16px;
  line-height: 1.7;
  color: var(--white);
}

.page-contact .checklist li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 11px;
  height: 11px;
  background: var(--cyan);
  border: 2px solid var(--ink-700);
  transform: rotate(45deg);
}

.page-contact .checklist strong {
  color: var(--cyan-soft);
  font-weight: 700;
}

.page-contact .guide-figure {
  margin: 0;
}

.page-contact .guide-figure img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: calc(var(--radius-card) - 6px);
}

/* ---------- 回复节奏 ---------- */
.page-contact .flow-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
}

.page-contact .flow-copy p {
  margin: 0 0 14px;
  max-width: 62ch;
  font-size: 16px;
  line-height: 1.8;
  color: var(--white);
}

.page-contact .flow-copy p:last-child {
  margin-bottom: 0;
}

.page-contact .flow-stats {
  display: grid;
  gap: 14px;
  align-content: start;
}

.page-contact .flow-stats .stat {
  padding: 14px 16px;
  border: var(--border-thin);
  border-left: 6px solid var(--cyan);
  border-radius: 12px;
  background: var(--ink-700);
}

.page-contact .flow-stats .stat-value {
  display: block;
  font-size: clamp(20px, 3vw, 28px);
  line-height: 1.2;
  color: var(--cyan);
  font-variant-numeric: tabular-nums;
}

.page-contact .flow-stats .stat-label {
  display: block;
  margin-top: 6px;
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--muted);
}

/* ---------- 合作方向 ---------- */
.page-contact .coop-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.page-contact .coop-tag {
  padding: 12px 20px;
  border: var(--border-thin);
  border-radius: var(--radius-pill);
  background: var(--ink-800);
  color: var(--white);
  font-size: 15px;
  line-height: 1.4;
  transition: transform 0.22s var(--ease), border-color 0.22s var(--ease), color 0.22s var(--ease), box-shadow 0.22s var(--ease);
}

.page-contact .coop-tag:hover {
  transform: translateY(-4px);
  border-color: var(--cyan);
  color: var(--cyan-soft);
  box-shadow: var(--shadow-hard-sm);
}

/* ---------- 常见场景 ---------- */
.page-contact .scene-list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: var(--border-thin);
}

.page-contact .scene {
  display: grid;
  grid-template-columns: 44px minmax(0, 1fr);
  gap: 14px;
  padding: 18px 4px;
  border-bottom: var(--border-thin);
  transition: background 0.22s var(--ease);
}

.page-contact .scene:hover {
  background: rgba(18, 34, 74, 0.55);
}

.page-contact .scene-num {
  padding-top: 2px;
  font-size: 15px;
  color: var(--orange);
  font-variant-numeric: tabular-nums;
}

.page-contact .scene-q {
  margin: 0 0 6px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 17px;
  line-height: 1.5;
  color: var(--white);
}

.page-contact .scene-a {
  margin: 0;
  font-size: 15px;
  line-height: 1.7;
  color: var(--muted);
}

/* ---------- 底部信息条 ---------- */
.page-contact .contact-board {
  padding-bottom: 48px;
}

.page-contact .board-list {
  margin: 0;
  padding: 20px 0 0;
  border-top: 4px solid var(--line);
  display: grid;
  gap: 12px;
}

.page-contact .board-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2px;
}

.page-contact .board-key {
  margin: 0;
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--muted);
}

.page-contact .board-val {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--muted);
  word-break: break-word;
}

.page-contact .board-note {
  margin: 22px 0 0;
  max-width: 66ch;
  font-size: 13px;
  line-height: 1.75;
  color: var(--muted);
}

/* ---------- 平板 ---------- */
@media (min-width: 700px) {
  .page-contact .board-row {
    grid-template-columns: 130px minmax(0, 1fr);
    gap: 16px;
    align-items: baseline;
  }
}

/* ---------- 桌面 ---------- */
@media (min-width: 900px) {
  .page-contact .contact-hero-grid {
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 28px;
  }

  .page-contact .contact-side {
    display: block;
    padding-top: 6px;
    writing-mode: vertical-rl;
    font-size: 13px;
    letter-spacing: 0.24em;
    color: var(--muted);
    white-space: nowrap;
  }

  .page-contact .channel-grid {
    grid-template-columns: 5fr 3fr 4fr;
  }

  .page-contact .flow-grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
  }
}

@media (min-width: 980px) {
  .page-contact .guide-layout {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: 32px;
  }
}

/* ---------- 动效降级 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-contact .channel-card,
  .page-contact .coop-tag,
  .page-contact .scene,
  .page-contact .contact-lede a,
  .page-contact .section-sub a,
  .page-contact .board-note a,
  .page-contact .scene-a a {
    transition: none;
  }

  .page-contact .channel-card:hover,
  .page-contact .coop-tag:hover {
    transform: none;
  }
}