.page-contact {
  --contact-pad: 18px;
  padding-bottom: 96px;
}

.page-contact .breadcrumbs ol {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  list-style: none;
  margin: 0;
  padding: 24px 0 0;
  font-size: 13px;
  color: var(--muted);
}

.page-contact .breadcrumbs a {
  color: var(--muted);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color .16s ease, border-color .16s ease;
}

.page-contact .breadcrumbs a:hover {
  color: var(--lime);
  border-bottom-color: var(--lime-2);
}

.page-contact .breadcrumbs li[aria-current="page"] {
  color: var(--white);
}

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
  padding: 32px 0 8px;
}

.page-contact .contact-hero-copy {
  max-width: 36em;
}

.page-contact .eyebrow {
  margin: 0 0 14px;
  font-size: 12px;
  letter-spacing: .18em;
  color: var(--lime);
  font-weight: 600;
}

.page-contact h1 {
  margin: 0;
  font-size: clamp(1.9rem, 7vw, 3.6rem);
  line-height: 1.12;
  letter-spacing: -.01em;
  font-weight: 800;
  color: var(--white);
  transform: skewX(-2deg);
  transform-origin: left bottom;
}

.page-contact .contact-hero-lede {
  margin: 20px 0 0;
  font-size: 16px;
  line-height: 1.78;
  color: var(--muted);
}

.page-contact .contact-hint {
  margin: 18px 0 0;
  display: inline-block;
  padding: 10px 18px;
  border-radius: 999px;
  background: var(--step);
  border: 1px solid var(--line);
  font-size: 14px;
  color: var(--muted);
}

.page-contact .contact-hint a {
  color: var(--lime);
  text-decoration: none;
  border-bottom: 1px solid var(--lime-2);
}

.page-contact .contact-hint a:hover {
  color: var(--lime-2);
}

.page-contact .contact-hero-media {
  margin: 0;
  align-self: start;
}

.page-contact .media-caption {
  margin-top: 10px;
  font-size: 12.5px;
  line-height: 1.6;
  color: var(--muted);
}

/* ---------- 章节通用 ---------- */
.page-contact .section {
  padding: 72px 0 0;
}

.page-contact .section--tight {
  padding-top: 60px;
}

.page-contact .chapter {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 22px;
}

.page-contact .chapter-num {
  flex: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 42px;
  padding: 6px 10px;
  border-radius: 999px;
  background: var(--lime);
  color: var(--ink);
  font-family: var(--mono);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .04em;
}

.page-contact .chapter-title {
  margin: 0;
  font-size: clamp(1.35rem, 4.6vw, 2.1rem);
  line-height: 1.24;
  letter-spacing: -.01em;
  color: var(--white);
  font-weight: 800;
}

.page-contact .lede {
  margin: 0 0 26px;
  max-width: 34em;
  font-size: 15.5px;
  line-height: 1.8;
  color: var(--muted);
}

/* ---------- 01 联系卡 ---------- */
.page-contact .reach-card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius-l);
  padding: 26px var(--contact-pad) 8px;
  max-width: 720px;
}

.page-contact .reach-row {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 10px 16px;
  padding: 22px 0 4px;
  border-top: 1px dashed var(--line);
}

.page-contact .reach-row:first-child {
  border-top: none;
  padding-top: 6px;
}

.page-contact .reach-key {
  flex: none;
  width: 100%;
  margin: 0;
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--muted);
  font-weight: 600;
}

.page-contact .reach-val {
  flex: 1 1 auto;
  min-width: 0;
  margin: 0;
  color: var(--white);
  word-break: break-word;
}

.page-contact .reach-val--mono {
  font-family: var(--mono);
  font-size: clamp(1.1rem, 4.4vw, 1.5rem);
  font-weight: 700;
  letter-spacing: -.01em;
  font-variant-numeric: tabular-nums;
}

.page-contact .reach-val--text {
  font-size: 15.5px;
  line-height: 1.7;
}

.page-contact .copy-btn {
  flex: none;
  appearance: none;
  cursor: pointer;
  padding: 8px 16px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: transparent;
  color: var(--lime);
  font-family: var(--sans);
  font-size: 13px;
  font-weight: 600;
  transition: background .16s ease, color .16s ease, border-color .16s ease;
}

.page-contact .copy-btn:hover {
  background: var(--lime);
  border-color: var(--lime);
  color: var(--ink);
}

.page-contact .copy-btn:focus-visible {
  outline: 2px solid var(--lime);
  outline-offset: 3px;
}

.page-contact .copy-btn[data-copied] {
  background: var(--lime-2);
  border-color: var(--lime-2);
  color: var(--ink);
}

.page-contact .reach-note {
  margin: 8px 0 18px;
  max-width: 34em;
  font-size: 13.5px;
  line-height: 1.72;
  color: var(--muted);
}

/* ---------- 02 反馈类型 ---------- */
.page-contact .topic-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 26px;
  max-width: 720px;
}

.page-contact .topic-item {
  padding-left: 16px;
  border-left: 2px solid var(--line);
}

.page-contact .topic-chip {
  cursor: pointer;
  appearance: none;
  font-family: var(--sans);
  font-size: 14px;
  font-weight: 600;
  padding: 10px 20px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: var(--step);
  color: var(--white);
  transition: background .16s ease, color .16s ease, border-color .16s ease;
}

.page-contact .topic-chip:hover {
  background: var(--lime);
  border-color: var(--lime);
  color: var(--ink);
}

.page-contact .topic-chip:focus-visible {
  outline: 2px solid var(--lime);
  outline-offset: 3px;
}

.page-contact .topic-chip[data-copied] {
  background: var(--lime-2);
  border-color: var(--lime-2);
  color: var(--ink);
}

.page-contact .topic-desc {
  margin: 12px 0 0;
  max-width: 34em;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--muted);
}

/* ---------- 03 清单 ---------- */
.page-contact .check-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}

.page-contact .check-card {
  background: var(--step);
  border-radius: var(--radius-m);
  padding: 20px 22px 22px;
  border-left: 3px solid var(--ice);
}

.page-contact .check-num {
  margin: 0 0 8px;
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .1em;
  color: var(--ice);
}

.page-contact .check-title {
  margin: 0 0 8px;
  font-size: 16px;
  line-height: 1.4;
  color: var(--white);
  font-weight: 700;
}

.page-contact .check-card p:last-child {
  margin: 0;
  font-size: 14px;
  line-height: 1.76;
  color: var(--muted);
}

/* ---------- 04 处理流程 ---------- */
.page-contact .flow {
  list-style: none;
  margin: 0;
  padding: 0 0 0 22px;
  position: relative;
  max-width: 700px;
}

.page-contact .flow::before {
  content: "";
  position: absolute;
  left: 5px;
  top: 10px;
  bottom: 26px;
  width: 2px;
  background: linear-gradient(to bottom, var(--orange), var(--line));
}

.page-contact .flow-step {
  position: relative;
  padding: 0 0 30px 0;
}

.page-contact .flow-step:last-child {
  padding-bottom: 0;
}

.page-contact .flow-node {
  position: absolute;
  left: -22px;
  top: 6px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--orange);
  box-shadow: 0 0 0 4px rgba(255, 106, 31, .16);
}

.page-contact .flow-title {
  margin: 0 0 8px;
  font-size: 17px;
  line-height: 1.4;
  color: var(--white);
  font-weight: 700;
}

.page-contact .flow-step p {
  margin: 0;
  max-width: 34em;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--muted);
}

.page-contact .flow-media {
  margin: 34px 0 0;
}

/* ---------- 05 运营信息 ---------- */
.page-contact .legal-card {
  background: var(--ink);
  border: 1px solid var(--line);
  border-radius: var(--radius-m);
  padding: 24px var(--contact-pad);
  max-width: 720px;
}

.page-contact .legal-list {
  margin: 0;
}

.page-contact .legal-row {
  display: flex;
  flex-wrap: wrap;
  gap: 4px 16px;
  padding: 12px 0;
  border-bottom: 1px dashed var(--line);
}

.page-contact .legal-row:first-child {
  padding-top: 0;
}

.page-contact .legal-row dt {
  flex: none;
  width: 100%;
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--muted);
}

.page-contact .legal-row dd {
  flex: 1 1 auto;
  margin: 0;
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--white);
  word-break: break-word;
}

.page-contact .legal-mono {
  font-family: var(--mono);
  font-variant-numeric: tabular-nums;
}

.page-contact .legal-tail {
  margin: 18px 0 0;
  font-size: 13.5px;
  line-height: 1.8;
  color: var(--muted);
}

.page-contact .legal-tail a {
  color: var(--lime);
  text-decoration: none;
  border-bottom: 1px solid var(--lime-2);
}

.page-contact .legal-tail a:hover {
  color: var(--lime-2);
}

/* ---------- 回到顶部 ---------- */
.page-contact .back-top {
  position: fixed;
  right: 16px;
  bottom: 20px;
  z-index: 20;
  appearance: none;
  cursor: pointer;
  padding: 10px 18px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: var(--step);
  color: var(--white);
  font-family: var(--sans);
  font-size: 13px;
  font-weight: 600;
  opacity: 0;
  visibility: hidden;
  transform: translateY(8px);
  transition: opacity .2s ease, transform .2s ease, visibility .2s;
}

.page-contact .back-top.is-visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.page-contact .back-top:hover {
  border-color: var(--lime);
  color: var(--lime);
}

.page-contact .back-top:focus-visible {
  outline: 2px solid var(--lime);
  outline-offset: 3px;
}

@media (min-width: 760px) {
  .page-contact {
    --contact-pad: 34px;
    padding-bottom: 120px;
  }

  .page-contact .contact-hero {
    grid-template-columns: 7fr 5fr;
    gap: 48px;
    align-items: start;
    padding-top: 44px;
  }

  .page-contact .reach-key {
    width: auto;
    min-width: 88px;
  }

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

  .page-contact .check-card:nth-child(even) {
    transform: translateY(22px);
  }

  .page-contact .section {
    padding-top: 96px;
  }

  .page-contact .back-top {
    right: 28px;
    bottom: 28px;
  }
}

@media (min-width: 1080px) {
  .page-contact .contact-hero {
    grid-template-columns: 7fr 5fr;
    gap: 64px;
  }

  .page-contact .topic-list {
    gap: 30px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .copy-btn,
  .page-contact .topic-chip,
  .page-contact .back-top,
  .page-contact .breadcrumbs a {
    transition: color .01ms, background-color .01ms, border-color .01ms;
  }

  .page-contact .check-card:nth-child(even) {
    transform: none;
  }
}
</｜｜DSML｜｜ parameter>
</invoke>
</アンサー>