.page-contact {
  --pc-line: 1px solid var(--rail);
  --pc-hero-pad: clamp(28px, 5vw, 64px);
  --pc-section-pad: clamp(56px, 9vw, 112px);
  --pc-shift: 12px;
}

/* ---------- 首屏 ---------- */

.page-contact .contact-hero {
  position: relative;
  padding: var(--pc-hero-pad) 0 clamp(40px, 7vw, 84px);
  overflow: hidden;
}

.page-contact .contact-hero::before {
  content: "";
  position: absolute;
  top: -140px;
  right: -110px;
  width: min(440px, 62vw);
  height: min(440px, 62vw);
  background: radial-gradient(circle, rgba(124, 77, 255, 0.3), rgba(124, 77, 255, 0) 68%);
  filter: blur(58px);
  pointer-events: none;
  z-index: 0;
}

.page-contact .contact-hero > .container {
  position: relative;
  z-index: 1;
}

.page-contact .breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.05em;
  color: var(--mist);
  margin-bottom: clamp(24px, 4vw, 44px);
}

.page-contact .breadcrumbs a {
  color: var(--mist);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 0.18s var(--ease), border-color 0.18s var(--ease);
}

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

.page-contact .breadcrumbs__sep {
  color: var(--rail);
}

.page-contact .contact-hero__body {
  display: grid;
  gap: clamp(32px, 5vw, 44px);
}

.page-contact .contact-hero__title {
  margin: 0 0 clamp(14px, 2vw, 22px);
  font-family: var(--font-sans);
  font-weight: 800;
  font-size: clamp(1.95rem, 6.2vw, 3.5rem);
  line-height: 1.14;
  letter-spacing: -0.02em;
  color: var(--white);
  max-width: 16ch;
}

.page-contact .contact-hero__lede {
  margin: 0;
  max-width: 52ch;
  color: var(--mist);
}

.page-contact .contact-hero__figure {
  position: relative;
  margin: 0;
}

.page-contact .contact-hero__figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 800 / 520;
  object-fit: cover;
  background: var(--night);
  clip-path: polygon(0 20px, 20px 0, 100% 0, 100% 100%, 0 100%);
}

.page-contact .contact-hero__figure::after {
  content: "";
  position: absolute;
  left: 22px;
  top: 1px;
  width: 46px;
  height: 2px;
  background: linear-gradient(90deg, var(--cyan), rgba(34, 224, 208, 0));
  pointer-events: none;
}

/* 三条路径 */

.page-contact .contact-paths {
  display: grid;
  align-content: start;
}

.page-contact .path {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 6px 18px;
  padding: clamp(20px, 3vw, 28px) 0;
  border-top: var(--pc-line);
}

.page-contact .path:last-child {
  border-bottom: var(--pc-line);
}

.page-contact .path__idx {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--violet);
  padding-top: 0.42em;
  font-variant-numeric: tabular-nums;
}

.page-contact .path__title {
  margin: 0 0 6px;
  font-size: 1.06rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--white);
}

.page-contact .path__desc {
  margin: 0 0 14px;
  max-width: 44ch;
  font-size: 0.93rem;
  line-height: 1.78;
  color: var(--mist);
}

.page-contact .path__value {
  margin: 0;
  font-family: var(--font-mono);
  font-size: clamp(0.9rem, 1.7vw, 1.06rem);
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--cyan);
  font-variant-numeric: tabular-nums;
  word-break: break-word;
  cursor: text;
}

.page-contact .path__btn {
  margin-top: 2px;
}

/* ---------- 章节基线 ---------- */

.page-contact .section {
  position: relative;
  padding: var(--pc-section-pad) 0;
  border-top: var(--pc-line);
}

.page-contact .section-head {
  display: flex;
  align-items: baseline;
  gap: clamp(14px, 2.6vw, 26px);
  margin-bottom: clamp(16px, 2.4vw, 26px);
}

.page-contact .section-num {
  flex: none;
  font-family: var(--font-mono);
  font-size: clamp(2.2rem, 7.5vw, 4.6rem);
  font-weight: 700;
  line-height: 0.82;
  letter-spacing: -0.03em;
  color: var(--violet);
  font-variant-numeric: tabular-nums;
}

.page-contact .section-title {
  margin: 0;
  font-family: var(--font-sans);
  font-weight: 800;
  font-size: clamp(1.3rem, 3.4vw, 2.05rem);
  line-height: 1.2;
  letter-spacing: -0.02em;
  color: var(--white);
}

.page-contact .section-lede {
  margin: 0 0 clamp(24px, 4vw, 40px);
  max-width: 46ch;
  color: var(--mist);
}

/* ---------- 场景折叠 ---------- */

.page-contact .scen-stack {
  display: grid;
  gap: 14px;
}

.page-contact .scen {
  background: var(--night);
  border: 1px solid var(--rim);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 16px), calc(100% - 16px) 100%, 0 100%);
  transition: background-color 0.22s var(--ease), border-color 0.22s var(--ease);
}

.page-contact .scen:hover {
  background: var(--rim);
  border-color: var(--rail);
}

.page-contact .scen__head {
  display: flex;
  align-items: center;
  gap: 16px;
  width: 100%;
  padding: clamp(16px, 2.4vw, 22px) clamp(16px, 2.6vw, 26px);
  background: none;
  border: 0;
  text-align: left;
  cursor: pointer;
  color: inherit;
  font: inherit;
}

.page-contact .scen__idx {
  flex: none;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--violet);
  font-variant-numeric: tabular-nums;
}

.page-contact .scen__title {
  font-size: clamp(0.98rem, 2vw, 1.1rem);
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--white);
}

.page-contact .scen__sign {
  position: relative;
  flex: none;
  width: 14px;
  height: 14px;
  margin-left: auto;
}

.page-contact .scen__sign::before,
.page-contact .scen__sign::after {
  content: "";
  position: absolute;
  background: var(--cyan);
  transition: transform 0.28s var(--ease), opacity 0.2s var(--ease);
}

.page-contact .scen__sign::before {
  top: 6px;
  left: 0;
  width: 14px;
  height: 2px;
}

.page-contact .scen__sign::after {
  top: 0;
  left: 6px;
  width: 2px;
  height: 14px;
}

.page-contact .scen__head[aria-expanded="true"] .scen__sign::after {
  transform: scaleY(0);
  opacity: 0;
}

.page-contact .scen__inner {
  padding: 0 clamp(16px, 2.6vw, 26px) clamp(20px, 3vw, 26px);
}

.page-contact .scen__text {
  margin: 0 0 14px;
  max-width: 46ch;
  font-size: 0.93rem;
  line-height: 1.8;
  color: var(--mist);
}

.page-contact .scen__list {
  margin: 0 0 18px;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 8px;
}

.page-contact .scen__list li {
  position: relative;
  padding-left: 18px;
  font-size: 0.9rem;
  line-height: 1.7;
  color: var(--mist);
}

.page-contact .scen__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.62em;
  width: 7px;
  height: 7px;
  background: var(--cyan);
  clip-path: polygon(50% 0, 100% 50%, 50% 100%, 0 50%);
}

.page-contact .scen__link {
  font-size: 0.85rem;
}

/* ---------- 带上什么 ---------- */

.page-contact .check-grid {
  display: grid;
  gap: clamp(28px, 5vw, 52px);
}

.page-contact .check-figure {
  margin: 0;
  position: relative;
}

.page-contact .check-figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 900 / 560;
  object-fit: cover;
  background: var(--night);
  clip-path: polygon(0 0, 100% 0, 100% 100%, 20px 100%, 0 calc(100% - 20px));
}

.page-contact .check-figure::after {
  content: "";
  position: absolute;
  right: 0;
  bottom: 22px;
  width: 46px;
  height: 2px;
  background: linear-gradient(270deg, var(--amber), rgba(255, 154, 60, 0));
  pointer-events: none;
}

.page-contact .check-lede {
  margin: 0 0 clamp(20px, 3vw, 30px);
  max-width: 40ch;
  color: var(--mist);
}

.page-contact .check-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 0;
  counter-reset: none;
}

.page-contact .check-item {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 4px 16px;
  padding: clamp(14px, 2vw, 18px) 0;
  border-top: var(--pc-line);
}

.page-contact .check-item:last-child {
  border-bottom: var(--pc-line);
}

.page-contact .check-item__num {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--amber);
  padding-top: 0.32em;
  font-variant-numeric: tabular-nums;
}

.page-contact .check-item__title {
  margin: 0 0 4px;
  font-size: 0.96rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--white);
}

.page-contact .check-item__text {
  margin: 0;
  max-width: 42ch;
  font-size: 0.89rem;
  line-height: 1.75;
  color: var(--mist);
}

/* ---------- 回复节奏 ---------- */

.page-contact .reply-wrap {
  display: grid;
  gap: clamp(24px, 4vw, 40px);
}

.page-contact .reply-panel {
  padding: clamp(18px, 2.6vw, 28px) clamp(18px, 2.8vw, 32px);
}

.page-contact .reply-row {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 4px 20px;
  padding: clamp(14px, 2vw, 20px) 0;
  border-top: var(--pc-line);
}

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

.page-contact .reply-row:last-child {
  padding-bottom: 0;
}

.page-contact .reply-row__key {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--cyan);
  padding-top: 0.28em;
}

.page-contact .reply-row__val {
  margin: 0;
  max-width: 48ch;
  font-size: 0.92rem;
  line-height: 1.8;
  color: var(--mist);
}

.page-contact .reply-side {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 10px;
}

.page-contact .reply-side__label {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.14em;
  color: var(--mist);
}

.page-contact .reply-side__value {
  margin: 0;
  font-size: clamp(1rem, 2.2vw, 1.22rem);
  font-weight: 700;
  letter-spacing: -0.01em;
  line-height: 1.6;
  color: var(--white);
}

.page-contact .reply-side__btn {
  margin-top: 8px;
}

/* ---------- 响应式 ---------- */

@media (min-width: 760px) {
  .page-contact .scen-stack {
    padding-right: 56px;
  }

  .page-contact .scen:nth-child(2) {
    margin-left: calc(var(--pc-shift) * 1);
  }

  .page-contact .scen:nth-child(3) {
    margin-left: calc(var(--pc-shift) * 2);
  }

  .page-contact .scen:nth-child(4) {
    margin-left: calc(var(--pc-shift) * 3);
  }

  .page-contact .scen:nth-child(5) {
    margin-left: calc(var(--pc-shift) * 4);
  }
}

@media (min-width: 900px) {
  .page-contact .contact-hero__body {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    column-gap: clamp(40px, 5vw, 72px);
    row-gap: clamp(32px, 4vw, 48px);
  }

  .page-contact .contact-hero__intro {
    grid-column: 1;
    grid-row: 1;
  }

  .page-contact .contact-hero__figure {
    grid-column: 2;
    grid-row: 1 / span 2;
    align-self: start;
  }

  .page-contact .contact-paths {
    grid-column: 1;
    grid-row: 2;
  }

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

  .page-contact .check-figure {
    position: sticky;
    top: calc(var(--header-h) + 32px);
  }

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

@media (max-width: 899px) {
  .page-contact .contact-hero__body {
    grid-template-columns: minmax(0, 1fr);
  }

  .page-contact .contact-hero__intro {
    order: 1;
  }

  .page-contact .contact-hero__figure {
    order: 2;
  }

  .page-contact .contact-paths {
    order: 3;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact *,
  .page-contact *::before,
  .page-contact *::after {
    transition-duration: 0.12s !important;
    animation-duration: 0.12s !important;
    scroll-behavior: auto !important;
  }
}
<<<END>>>