.page-contact {
  --pc-pad: clamp(36px, 6vw, 76px);
  --pc-border-ink: rgba(7, 20, 38, 0.16);
  display: block;
  overflow-wrap: break-word;
}

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  position: relative;
  overflow: hidden;
  color: var(--c-white);
  background:
    radial-gradient(120% 95% at 94% -12%, rgba(55, 245, 224, 0.18), transparent 56%),
    radial-gradient(95% 80% at -12% 112%, rgba(255, 122, 26, 0.14), transparent 58%),
    var(--c-navy);
  padding-block: clamp(22px, 4.5vw, 48px) var(--pc-pad);
}

.page-contact .contact-hero__inner {
  display: grid;
  gap: clamp(26px, 4vw, 44px);
}

.page-contact .contact-hero__title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(2.2rem, 8vw, 4.4rem);
  line-height: 1.02;
  letter-spacing: -0.012em;
  margin: 10px 0 0;
  color: var(--c-white);
  transform: skewX(-2deg);
  transform-origin: left bottom;
}

.page-contact .contact-hero__text {
  margin: 18px 0 0;
  max-width: 46ch;
  font-size: clamp(0.98rem, 2.4vw, 1.08rem);
  line-height: 1.75;
  color: var(--c-mist);
}

.page-contact .contact-hero__facts {
  margin: 26px 0 0;
  display: grid;
  gap: 0;
  max-width: 34rem;
}

.page-contact .contact-hero__fact {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 14px;
  align-items: baseline;
  padding: 11px 0;
  border-top: 1px solid var(--c-line);
}

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

.page-contact .contact-hero__fact dt {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.12em;
  color: var(--c-cyan);
  flex: none;
  min-width: 76px;
}

.page-contact .contact-hero__fact dd {
  margin: 0;
  font-size: 0.94rem;
  color: var(--c-white);
}

.page-contact .contact-hero__board {
  display: grid;
  gap: 16px;
}

.page-contact .mailcard {
  position: relative;
  padding: clamp(20px, 3.6vw, 30px);
  border: 1px solid rgba(55, 245, 224, 0.48);
  border-radius: var(--r-l);
  background: linear-gradient(158deg, var(--c-panel), var(--c-navy-2));
  box-shadow: 0 24px 56px rgba(0, 0, 0, 0.38);
}

.page-contact .mailcard__label {
  display: inline-block;
  margin: 0 0 14px;
  padding: 5px 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--c-navy);
  background: var(--c-cyan);
  border-radius: var(--r-s);
}

.page-contact .mailcard__addr {
  margin: 0;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(1rem, 4.6vw, 1.62rem);
  line-height: 1.25;
  letter-spacing: -0.01em;
  color: var(--c-cyan);
  word-break: break-all;
}

.page-contact .mailcard__note {
  margin: 14px 0 0;
  font-size: 0.9rem;
  line-height: 1.7;
  color: var(--c-mist);
}

.page-contact .signal {
  padding: 16px clamp(16px, 3vw, 20px);
  border: 1px dashed var(--c-line);
  border-radius: var(--r-m);
  background: rgba(13, 33, 56, 0.72);
}

.page-contact .signal__title {
  margin: 0 0 6px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--c-scale);
}

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

.page-contact .signal__row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px 10px;
  padding: 9px 0;
  border-bottom: 1px solid var(--c-line-soft);
}

.page-contact .signal__row:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.page-contact .signal__dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  flex: none;
}

.page-contact .signal__dot--cyan { background: var(--c-cyan); box-shadow: 0 0 10px rgba(55, 245, 224, 0.7); }
.page-contact .signal__dot--orange { background: var(--c-orange); box-shadow: 0 0 10px rgba(255, 122, 26, 0.6); }
.page-contact .signal__dot--green { background: var(--c-green); box-shadow: 0 0 10px rgba(56, 217, 150, 0.6); }

.page-contact .signal__name {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--c-white);
}

.page-contact .signal__desc {
  margin-left: auto;
  font-size: 12px;
  color: var(--c-mist);
}

/* ---------- 图片带 ---------- */
.page-contact .contact-band {
  position: relative;
  margin: 0;
  background: var(--c-navy-2);
  border-top: 1px solid var(--c-line);
  border-bottom: 1px solid var(--c-line);
}

.page-contact .contact-band__img {
  display: block;
  width: 100%;
  height: clamp(160px, 26vw, 320px);
  object-fit: cover;
  max-width: 100%;
}

.page-contact .contact-band__cap {
  position: absolute;
  inset: auto 0 0 0;
  padding: 34px clamp(16px, 4vw, 40px) 14px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.1em;
  color: var(--c-white);
  background: linear-gradient(transparent, rgba(7, 20, 38, 0.88));
}

/* ---------- 通用标题 ---------- */
.page-contact .pc-h2 {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.65rem, 4.8vw, 2.85rem);
  line-height: 1.06;
  letter-spacing: -0.01em;
  margin: 8px 0 0;
  color: inherit;
}

.page-contact .pc-h2--sm {
  font-size: clamp(1.35rem, 3.4vw, 2rem);
}

.page-contact .pc-lead {
  margin: 14px 0 0;
  max-width: 60ch;
  font-size: 0.96rem;
  line-height: 1.75;
  color: var(--c-mist);
}

/* ---------- 反馈准备 ---------- */
.page-contact .contact-prep {
  background: var(--c-white);
  color: var(--c-ink);
  padding-block: var(--pc-pad);
}

.page-contact .contact-prep__grid {
  display: grid;
  gap: clamp(26px, 4vw, 44px);
}

.page-contact .contact-prep .pc-lead {
  color: var(--c-ink-3);
}

.page-contact .checklist {
  list-style: none;
  margin: 24px 0 0;
  padding: 0;
  border-top: 1px solid var(--pc-border-ink);
}

.page-contact .checklist__item {
  display: grid;
  grid-template-columns: 22px minmax(0, 1fr);
  gap: 12px;
  padding: 15px 0;
  border-bottom: 1px solid var(--pc-border-ink);
  transition: background var(--dur) var(--ease);
}

.page-contact .checklist__item:hover {
  background: rgba(255, 122, 26, 0.06);
}

.page-contact .checklist__box {
  width: 18px;
  height: 18px;
  margin: 3px 0 0;
  accent-color: var(--c-orange);
  cursor: pointer;
  flex: none;
}

.page-contact .checklist__label {
  display: block;
  cursor: pointer;
}

.page-contact .checklist__no {
  display: block;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.14em;
  color: var(--c-orange);
}

.page-contact .checklist__t {
  display: block;
  margin: 3px 0 5px;
  font-size: 1.01rem;
  font-weight: 700;
  color: var(--c-ink);
}

.page-contact .checklist__d {
  display: block;
  font-size: 0.9rem;
  line-height: 1.68;
  color: var(--c-ink-3);
}

.page-contact .prep-figure {
  margin: 0;
  background: var(--c-navy);
  border-radius: var(--r-m);
  overflow: hidden;
  box-shadow: 0 18px 44px rgba(7, 20, 38, 0.2);
}

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

.page-contact .prep-figure figcaption {
  padding: 12px 16px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  line-height: 1.6;
  letter-spacing: 0.06em;
  color: var(--c-mist);
}

/* ---------- 场景对照 ---------- */
.page-contact .contact-cases {
  background: var(--c-navy);
  color: var(--c-white);
  padding-block: var(--pc-pad);
}

.page-contact .cases {
  margin-top: 26px;
}

.page-contact .case {
  margin-bottom: 12px;
  border: 1px solid var(--c-line);
  border-radius: var(--r-m);
  background: var(--c-navy-2);
  transition: border-color var(--dur) var(--ease);
}

.page-contact .case:last-child {
  margin-bottom: 0;
}

.page-contact .case[open] {
  border-color: rgba(55, 245, 224, 0.5);
}

.page-contact .case__sum {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 16px clamp(14px, 2.8vw, 22px);
  cursor: pointer;
  list-style: none;
}

.page-contact .case__sum::-webkit-details-marker {
  display: none;
}

.page-contact .case__no {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.12em;
  color: var(--c-orange);
  flex: none;
}

.page-contact .case__t {
  font-size: 0.99rem;
  font-weight: 700;
  line-height: 1.45;
  color: var(--c-white);
}

.page-contact .case__plus {
  flex: none;
  width: 9px;
  height: 9px;
  margin-left: auto;
  border-right: 2px solid var(--c-cyan);
  border-bottom: 2px solid var(--c-cyan);
  transform: rotate(45deg);
  transition: transform var(--dur) var(--ease);
}

.page-contact .case[open] .case__plus {
  transform: rotate(-135deg);
}

.page-contact .case__body {
  padding: 0 clamp(14px, 2.8vw, 22px) 18px;
}

.page-contact .case__body p {
  margin: 0;
  font-size: 0.92rem;
  line-height: 1.75;
  color: var(--c-mist);
}

/* ---------- 合作与流程 ---------- */
.page-contact .contact-partner {
  background: var(--c-navy-2);
  color: var(--c-white);
  padding-block: var(--pc-pad);
  border-top: 1px solid var(--c-line);
}

.page-contact .partner-head {
  display: grid;
  gap: 8px;
}

.page-contact .flow {
  list-style: none;
  margin: 30px 0 0;
  padding: 0;
  display: grid;
  gap: 24px;
}

.page-contact .flow__step {
  position: relative;
  padding-top: 20px;
  border-top: 2px solid var(--c-line);
}

.page-contact .flow__step::before {
  content: "";
  position: absolute;
  top: -6px;
  left: 0;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--c-cyan);
}

.page-contact .flow__step:last-child::before {
  background: var(--c-orange);
}

.page-contact .flow__no {
  display: block;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--c-cyan);
}

.page-contact .flow__t {
  margin: 6px 0 6px;
  font-size: 1.04rem;
  font-weight: 700;
  color: var(--c-white);
}

.page-contact .flow__d {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.68;
  color: var(--c-mist);
}

.page-contact .partner-note {
  margin: 26px 0 0;
  padding: 14px 16px;
  border-left: 3px solid var(--c-orange);
  background: rgba(255, 122, 26, 0.08);
  font-size: 0.92rem;
  line-height: 1.7;
  color: var(--c-mist);
}

.page-contact .mono-strong {
  font-family: var(--font-mono);
  color: var(--c-cyan);
  word-break: break-all;
}

/* ---------- 回信节奏 ---------- */
.page-contact .contact-rhythm {
  background: var(--c-navy);
  color: var(--c-white);
  padding-block: var(--pc-pad);
}

.page-contact .rhythm__grid {
  display: grid;
  gap: clamp(22px, 3.4vw, 44px);
}

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

.page-contact .rhythm__item {
  display: grid;
  gap: 6px;
  padding: 14px 0;
  border-top: 1px solid var(--c-line);
}

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

.page-contact .rhythm__time {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.12em;
  color: var(--c-orange);
}

.page-contact .rhythm__desc {
  margin: 0;
  font-size: 0.93rem;
  line-height: 1.72;
  color: var(--c-mist);
}

.page-contact .rhythm__link {
  color: var(--c-cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(55, 245, 224, 0.45);
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-contact .rhythm__link:hover {
  color: var(--c-orange);
  border-color: var(--c-orange);
}

/* ---------- 登记信息 ---------- */
.page-contact .contact-registry {
  background: var(--c-white);
  color: var(--c-ink);
  padding-block: var(--pc-pad);
}

.page-contact .contact-registry .pc-lead {
  color: var(--c-ink-3);
}

.page-contact .registry-grid {
  display: grid;
  gap: 14px;
  margin-top: 26px;
}

.page-contact .registry-card {
  position: relative;
  padding: 18px 18px 16px;
  border: 1px solid rgba(7, 20, 38, 0.24);
  border-radius: var(--r-s);
  background: var(--c-white);
  box-shadow: 3px 3px 0 rgba(7, 20, 38, 0.08);
}

.page-contact .registry-card__label {
  margin: 0 0 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--c-ink-4);
  text-transform: uppercase;
}

.page-contact .registry-card__value {
  margin: 0;
  font-size: 1.02rem;
  font-weight: 700;
  line-height: 1.5;
  color: var(--c-ink);
  word-break: break-word;
}

.page-contact .registry-card__value--mono {
  font-family: var(--font-mono);
  letter-spacing: -0.01em;
}

.page-contact .registry-card__note {
  margin: 8px 0 0;
  font-size: 0.84rem;
  line-height: 1.6;
  color: var(--c-ink-4);
}

.page-contact .registry-card--wide {
  border-left: 4px solid var(--c-orange);
}

.page-contact .registry-foot {
  margin: 22px 0 0;
  padding-top: 16px;
  border-top: 1px dashed rgba(7, 20, 38, 0.24);
  font-size: 0.9rem;
  line-height: 1.75;
  color: var(--c-ink-3);
}

.page-contact .registry-foot .mono-strong {
  color: var(--c-ink);
  font-weight: 700;
}

/* ---------- 延伸入口 ---------- */
.page-contact .contact-next {
  background: var(--c-navy);
  color: var(--c-white);
  padding-block: clamp(30px, 5vw, 58px);
  border-top: 1px solid var(--c-line);
}

.page-contact .next-links {
  list-style: none;
  margin: 22px 0 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-contact .next-link {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 6px 12px;
  padding: 13px 15px;
  border: 1px solid var(--c-line);
  border-radius: var(--r-s);
  color: var(--c-white);
  text-decoration: none;
  transition: border-color var(--dur) var(--ease), background var(--dur) var(--ease);
}

.page-contact .next-link:hover {
  border-color: var(--c-cyan);
  background: rgba(55, 245, 224, 0.08);
}

.page-contact .next-link:focus-visible {
  outline: 2px solid var(--c-cyan);
  outline-offset: 2px;
}

.page-contact .next-link__k {
  flex: none;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--c-cyan);
}

.page-contact .next-link__v {
  font-size: 0.93rem;
  line-height: 1.6;
}

/* ---------- 响应式 ---------- */
@media (min-width: 760px) {
  .page-contact .registry-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-contact .registry-card--wide {
    grid-column: span 1;
  }

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

  .page-contact .rhythm__item {
    grid-template-columns: 96px minmax(0, 1fr);
    align-items: baseline;
    gap: 16px;
  }
}

@media (min-width: 900px) {
  .page-contact .contact-hero__inner {
    grid-template-columns: minmax(0, 1.04fr) minmax(0, 0.96fr);
    align-items: start;
  }

  .page-contact .contact-prep__grid {
    grid-template-columns: minmax(0, 1.06fr) minmax(0, 0.94fr);
    align-items: start;
  }

  .page-contact .partner-head {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    align-items: end;
    gap: 32px;
  }

  .page-contact .partner-head .pc-lead {
    margin-top: 0;
  }

  .page-contact .rhythm__grid {
    grid-template-columns: minmax(0, 0.78fr) minmax(0, 1.22fr);
    align-items: start;
  }
}

@media (min-width: 1000px) {
  .page-contact .flow {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 18px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact *,
  .page-contact *::before,
  .page-contact *::after {
    transition: none !important;
    animation: none !important;
  }
}
<<<END>>>