.page-contact {
  background-color: var(--ink);
  background-image:
    linear-gradient(var(--grid-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-line) 1px, transparent 1px);
  background-size: 72px 72px;
  color: var(--cream);
  overflow-x: hidden;
}

.page-contact .section {
  position: relative;
}

/* ---------- 首屏 ---------- */
.page-contact .contact-top {
  padding-top: clamp(20px, 4vw, 44px);
}

.page-contact .contact-top__grid {
  display: grid;
  gap: clamp(24px, 4vw, 44px);
  align-items: end;
}

.page-contact .contact-top__main {
  min-width: 0;
}

.page-contact .contact-title {
  font-family: var(--font-label);
  font-size: clamp(1.9rem, 6.4vw, 3.4rem);
  line-height: 1.14;
  font-weight: 700;
  letter-spacing: 0.01em;
  margin: 0 0 18px;
  color: var(--white);
}

.page-contact .contact-top__lede {
  max-width: 40ch;
  color: var(--cool);
  margin-bottom: 26px;
}

.page-contact .contact-top__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

/* 数据看板 */
.page-contact .contact-board {
  border: 1px solid var(--line);
  background: linear-gradient(155deg, var(--moss) 0%, var(--ink-deep) 100%);
  padding: clamp(18px, 3vw, 26px);
  min-width: 0;
}

.page-contact .contact-board__label {
  font-family: var(--font-label);
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--cyan);
  margin: 0 0 16px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--line-soft);
}

.page-contact .contact-board__grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px 16px;
}

.page-contact .contact-board__cell {
  display: flex;
  flex-direction: column;
  gap: 4px;
  min-width: 0;
}

.page-contact .contact-board__num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: clamp(1.7rem, 5vw, 2.4rem);
  line-height: 1;
  color: var(--yellow);
  letter-spacing: -0.01em;
}

.page-contact .contact-board__num--sm {
  font-size: clamp(1rem, 2.6vw, 1.25rem);
  color: var(--orange);
  padding-top: 6px;
}

.page-contact .contact-board__key {
  font-size: 13px;
  color: var(--cool);
  line-height: 1.5;
}

/* ---------- 图片 ---------- */
.page-contact .visual {
  margin: 0;
  border: 1px solid var(--line-soft);
  background: var(--ink-deep);
  min-width: 0;
}

.page-contact .visual__media {
  display: block;
  width: 100%;
  overflow: hidden;
  aspect-ratio: 2 / 1;
}

.page-contact .visual--square .visual__media {
  aspect-ratio: 1 / 1;
}

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

.page-contact .visual__caption {
  padding: 12px 16px;
  font-size: 13px;
  line-height: 1.6;
  color: var(--cool);
  border-top: 1px solid var(--line-soft);
}

.page-contact .visual--inline {
  max-width: 620px;
  margin-inline: auto;
}

/* ---------- 渠道 ---------- */
.page-contact .chan-grid {
  display: grid;
  gap: 1px;
  background: var(--line-soft);
  border: 1px solid var(--line-soft);
}

.page-contact .chan {
  background: var(--ink);
  padding: clamp(18px, 3vw, 26px);
  min-width: 0;
  border-left: 3px solid transparent;
  transition: background var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-contact .chan:hover,
.page-contact .chan:focus-within {
  background: rgba(36, 74, 59, 0.42);
  border-left-color: var(--cyan);
}

.page-contact .chan--lead {
  background: linear-gradient(150deg, rgba(36, 74, 59, 0.92) 0%, rgba(7, 19, 15, 0.96) 100%);
  border-left-color: var(--cyan);
}

.page-contact .chan__label {
  font-family: var(--font-label);
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--stone);
  margin: 0 0 12px;
}

.page-contact .chan__value {
  font-size: clamp(1rem, 2.6vw, 1.2rem);
  line-height: 1.45;
  font-weight: 600;
  color: var(--cream);
  margin: 0 0 12px;
  word-break: break-word;
}

.page-contact .chan__value--mono {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  color: var(--cyan);
  letter-spacing: 0.01em;
}

.page-contact .chan__note {
  font-size: 14px;
  line-height: 1.75;
  color: var(--cool);
  margin: 0;
  max-width: 46ch;
}

/* ---------- 常见来信 ---------- */
.page-contact .cases-grid {
  display: grid;
  gap: 18px;
}

.page-contact .case {
  position: relative;
  background: rgba(36, 74, 59, 0.3);
  border: 1px solid var(--line-soft);
  border-top-width: 3px;
  padding: clamp(20px, 3vw, 26px);
  min-width: 0;
  transition: transform var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-contact .case:hover {
  transform: translateY(-3px);
  border-color: var(--cyan);
}

.page-contact .case--cyan {
  border-top-color: var(--cyan);
}

.page-contact .case--orange {
  border-top-color: var(--orange);
}

.page-contact .case--yellow {
  border-top-color: var(--yellow);
}

.page-contact .case__num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--stone);
  margin: 0 0 14px;
}

.page-contact .case--cyan .case__num {
  color: var(--cyan);
}

.page-contact .case--orange .case__num {
  color: var(--orange);
}

.page-contact .case--yellow .case__num {
  color: var(--yellow);
}

.page-contact .case__title {
  font-family: var(--font-label);
  font-size: clamp(1.05rem, 3vw, 1.25rem);
  line-height: 1.4;
  font-weight: 700;
  color: var(--white);
  margin: 0 0 12px;
}

.page-contact .case__body {
  font-size: 15px;
  line-height: 1.8;
  color: var(--cool);
  margin: 0 0 16px;
}

.page-contact .case__foot {
  font-size: 12.5px;
  letter-spacing: 0.02em;
  color: var(--stone);
  margin: 0;
  padding-top: 14px;
  border-top: 1px solid var(--line-soft);
}

/* ---------- 处理路径 ---------- */
.page-contact .flow-grid {
  display: grid;
  gap: clamp(26px, 4vw, 48px);
}

.page-contact .flow-grid__text {
  min-width: 0;
}

.page-contact .flow-grid__text .prose {
  color: var(--cool);
  max-width: 38ch;
}

.page-contact .flowline {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 22px;
  border-left: 1px solid var(--line);
  padding-left: 22px;
}

.page-contact .flowline__step {
  position: relative;
  min-width: 0;
  padding-bottom: 6px;
}

.page-contact .flowline__dot {
  position: absolute;
  left: -27px;
  top: 4px;
  width: 9px;
  height: 9px;
  background: var(--stone);
}

.page-contact .flowline__step--now .flowline__dot {
  background: var(--orange);
}

.page-contact .flowline__step-num {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--stone);
  margin: 0 0 6px;
}

.page-contact .flowline__step--now .flowline__step-num {
  color: var(--orange);
}

.page-contact .flowline__title {
  font-family: var(--font-label);
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--white);
  margin: 0 0 6px;
}

.page-contact .flowline__text {
  font-size: 14px;
  line-height: 1.75;
  color: var(--cool);
  margin: 0;
}

/* ---------- 结尾导航 ---------- */
.page-contact .contact-next__box {
  border: 1px solid var(--line);
  background: linear-gradient(120deg, rgba(36, 74, 59, 0.9) 0%, rgba(7, 19, 15, 0.96) 70%);
  padding: clamp(24px, 4vw, 44px);
  display: grid;
  gap: clamp(24px, 4vw, 40px);
}

.page-contact .contact-next__lead {
  min-width: 0;
}

.page-contact .contact-next__text {
  font-size: 15px;
  line-height: 1.85;
  color: var(--cool);
  max-width: 44ch;
  margin: 0;
}

.page-contact .contact-next__links {
  display: grid;
  gap: 1px;
  background: var(--line-soft);
  border: 1px solid var(--line-soft);
}

.page-contact .next-link {
  display: flex;
  flex-direction: column;
  gap: 5px;
  background: var(--ink);
  padding: 16px 18px;
  text-decoration: none;
  border-left: 3px solid transparent;
  transition: background var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-contact .next-link:hover,
.page-contact .next-link:focus-visible {
  background: rgba(36, 74, 59, 0.5);
  border-left-color: var(--cyan);
}

.page-contact .next-link__key {
  font-family: var(--font-label);
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--cream);
}

.page-contact .next-link__desc {
  font-size: 13px;
  line-height: 1.6;
  color: var(--cool);
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-contact .visual--wide .visual__media {
    aspect-ratio: 21 / 9;
  }

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

@media (min-width: 900px) {
  .page-contact .contact-top__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
  }

  .page-contact .chan-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-contact .chan--lead,
  .page-contact .chan--wide {
    grid-column: span 2;
  }

  .page-contact .cases-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-contact .flow-grid {
    grid-template-columns: minmax(0, 4fr) minmax(0, 8fr);
    align-items: start;
  }

  .page-contact .flowline {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 28px 32px;
    border-left: 1px solid var(--line);
  }

  .page-contact .contact-next__box {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    align-items: center;
  }
}

@media (min-width: 1180px) {
  .page-contact .flowline {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    border-left: 0;
    border-top: 1px solid var(--line);
    padding-left: 0;
    padding-top: 26px;
    gap: 26px;
  }

  .page-contact .flowline__dot {
    left: 0;
    top: -30px;
  }

  .page-contact .flowline__step--now .flowline__dot {
    box-shadow: 0 0 0 4px rgba(240, 118, 58, 0.18);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .case,
  .page-contact .chan,
  .page-contact .next-link {
    transition: none;
  }

  .page-contact .case:hover {
    transform: none;
  }
}