.page-contact {
  --contact-stroke: 1px solid var(--rule);
  background: var(--night);
  color: var(--paper);
  font-family: var(--font-body);
  overflow-x: hidden;
}

.page-contact img {
  max-width: 100%;
  height: auto;
}

.page-contact a {
  color: var(--cyan);
  text-underline-offset: 4px;
  text-decoration-thickness: 1px;
}

.page-contact a:hover,
.page-contact a:focus-visible {
  color: var(--orange-soft);
}

.page-contact .eyebrow {
  margin: 0 0 18px;
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--cyan-mist);
  text-transform: uppercase;
}

/* ---------- 首屏 ---------- */

.page-contact .contact-hero {
  padding-top: 28px;
  padding-bottom: 44px;
}

.page-contact .contact-hero__title {
  margin: 0 0 22px;
  font-size: clamp(38px, 10vw, 116px);
  font-weight: 200;
  line-height: 1;
  letter-spacing: 0.02em;
  color: var(--paper);
}

.page-contact .contact-hero__lead {
  max-width: 46ch;
  margin: 0 0 40px;
  font-size: 17px;
  line-height: 1.8;
  color: var(--paper);
}

.page-contact .contact-hero__index {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 28px;
  margin: 0;
  padding: 16px 0 0;
  list-style: none;
  border-top: var(--contact-stroke);
}

.page-contact .contact-hero__index a {
  display: inline-flex;
  align-items: baseline;
  gap: 10px;
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--muted);
  text-decoration: none;
}

.page-contact .contact-hero__index a .num {
  color: var(--orange);
  font-size: 12px;
}

.page-contact .contact-hero__index a:hover,
.page-contact .contact-hero__index a:focus-visible {
  color: var(--paper);
}

/* ---------- 全宽图带 ---------- */

.page-contact .contact-band {
  position: relative;
  margin: 0 0 8px;
  width: 100%;
}

.page-contact .contact-band img {
  display: block;
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

.page-contact .contact-band::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(7, 20, 38, 0.58) 0%, rgba(7, 20, 38, 0.92) 100%);
  pointer-events: none;
}

.page-contact .contact-band .image-frame__caption {
  position: relative;
  z-index: 1;
  display: block;
  margin-top: -46px;
  padding: 0 var(--pad) 12px;
  max-width: var(--shell);
  margin-left: auto;
  margin-right: auto;
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--muted);
}

/* ---------- 主体非对称栅格 ---------- */

.page-contact .contact-body {
  display: grid;
  grid-template-columns: 1fr;
  gap: 56px;
  padding-top: 56px;
  padding-bottom: 56px;
}

.page-contact .contact-main {
  display: grid;
  gap: 64px;
  min-width: 0;
}

.page-contact .section-head {
  margin-bottom: 24px;
}

.page-contact .section-head__index {
  display: block;
  margin-bottom: 8px;
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--muted);
}

.page-contact .section-head__title {
  margin: 0;
  font-size: clamp(22px, 5.4vw, 34px);
  font-weight: 300;
  line-height: 1.3;
  letter-spacing: 0.01em;
  color: var(--paper);
}

/* ---------- 联系渠道 ---------- */

.page-contact .channel {
  padding: 20px 0;
  border-top: var(--contact-stroke);
}

.page-contact .channel:last-of-type {
  border-bottom: var(--contact-stroke);
}

.page-contact .channel__icon {
  display: block;
  width: 30px;
  height: 24px;
  margin-bottom: 14px;
  fill: none;
  stroke: var(--cyan);
  stroke-width: 1.5;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.page-contact .channel__label {
  margin: 0 0 8px;
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--muted);
}

.page-contact .channel__value {
  margin: 0 0 8px;
  font-family: var(--font-mono);
  font-size: clamp(16px, 4.6vw, 21px);
  font-variant-numeric: tabular-nums;
  line-height: 1.4;
  letter-spacing: 0.01em;
  color: var(--paper);
  word-break: break-word;
  overflow-wrap: anywhere;
  user-select: all;
}

.page-contact .channel:hover .channel__value {
  color: var(--orange-soft);
}

.page-contact .channel__note {
  margin: 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--muted);
}

.page-contact .channel__summary {
  margin: 22px 0 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--muted);
}

/* ---------- 反馈类型（details） ---------- */

.page-contact .topic-list {
  border-top: var(--contact-stroke);
}

.page-contact .topic {
  border-bottom: var(--contact-stroke);
}

.page-contact .topic__summary {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: baseline;
  gap: 12px;
  padding: 18px 0;
  cursor: pointer;
  list-style: none;
}

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

.page-contact .topic__num {
  font-size: 15px;
  color: var(--orange);
}

.page-contact .topic__name {
  font-size: 17px;
  line-height: 1.5;
  color: var(--paper);
}

.page-contact .topic__flag {
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--muted);
  white-space: nowrap;
}

.page-contact .topic__flag::after {
  content: " ＋";
  color: var(--cyan);
}

.page-contact .topic[open] .topic__flag::after {
  content: " －";
}

.page-contact .topic:hover .topic__name,
.page-contact .topic__summary:focus-visible .topic__name {
  color: var(--orange-soft);
}

.page-contact .topic__summary:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
}

.page-contact .topic__body {
  padding: 0 0 24px;
}

.page-contact .topic__body p {
  margin: 0 0 14px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--paper);
}

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

.page-contact .topic__need li {
  position: relative;
  padding: 7px 0 7px 22px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--muted);
}

.page-contact .topic__need li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 17px;
  width: 12px;
  height: 2px;
  background: var(--orange);
}

.page-contact .topic__link {
  margin-top: 16px;
  font-size: 14px;
  color: var(--muted);
}

/* ---------- 邮件写法 ---------- */

.page-contact .template-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
}

.page-contact .template-sheet {
  padding-left: 20px;
  border-left: 2px solid var(--cyan);
}

.page-contact .template-subject {
  margin: 0 0 22px;
  font-family: var(--font-mono);
  font-size: 14px;
  line-height: 1.6;
  letter-spacing: 0.02em;
  color: var(--orange-soft);
  word-break: break-word;
}

.page-contact .template-fields {
  margin: 0;
}

.page-contact .template-fields > div {
  display: grid;
  grid-template-columns: 1fr;
  gap: 4px;
  padding: 12px 0;
  border-bottom: var(--contact-stroke);
}

.page-contact .template-fields dt {
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--muted);
}

.page-contact .template-fields dd {
  margin: 0;
  font-size: 15px;
  line-height: 1.7;
  color: var(--paper);
}

.page-contact .template-foot {
  margin: 18px 0 0;
  font-size: 13px;
  line-height: 1.8;
  color: var(--muted);
}

.page-contact .template-figure {
  margin: 0;
  aspect-ratio: 10 / 7;
}

.page-contact .template-figure img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.page-contact .template-figure .image-frame__caption {
  font-size: 12px;
  line-height: 1.7;
  color: var(--muted);
}

/* ---------- 处理步骤 ---------- */

.page-contact .steps {
  display: grid;
  grid-template-columns: 1fr;
  gap: 26px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-contact .step {
  position: relative;
  padding-top: 28px;
}

.page-contact .step::before {
  content: "";
  position: absolute;
  top: 5px;
  left: 0;
  right: 32px;
  height: 1px;
  background: var(--rule);
}

.page-contact .step__dot {
  position: absolute;
  top: 0;
  left: 0;
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: var(--orange);
  box-shadow: 0 0 0 5px rgba(255, 138, 61, 0.14);
}

.page-contact .step__num {
  margin: 0 0 8px;
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--muted);
}

.page-contact .step__title {
  margin: 0 0 8px;
  font-size: 17px;
  font-weight: 400;
  letter-spacing: 0.01em;
  color: var(--paper);
}

.page-contact .step p {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--muted);
}

/* ---------- 备案区 ---------- */

.page-contact .contact-legal {
  padding-top: 36px;
  padding-bottom: 72px;
  border-top: var(--contact-stroke);
}

.page-contact .contact-legal__title {
  margin: 0 0 18px;
  font-size: 14px;
  font-weight: 400;
  letter-spacing: 0.12em;
  color: var(--muted);
}

.page-contact .contact-legal__icp {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: clamp(17px, 4.4vw, 22px);
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.02em;
  color: var(--paper);
  user-select: all;
  overflow-wrap: anywhere;
}

.page-contact .contact-legal__text {
  max-width: 62ch;
  margin: 0;
  font-size: 14px;
  line-height: 1.9;
  color: var(--muted);
}

/* ---------- 断点 ---------- */

@media (min-width: 560px) {
  .page-contact .template-fields > div {
    grid-template-columns: 96px 1fr;
    gap: 0 20px;
    align-items: baseline;
  }
}

@media (min-width: 900px) {
  .page-contact .contact-hero {
    padding-top: 44px;
    padding-bottom: 56px;
  }

  .page-contact .contact-band .image-frame__caption {
    margin-top: -54px;
  }

  .page-contact .contact-body {
    grid-template-columns: 1fr 2.2fr;
    gap: 72px;
    padding-top: 80px;
    padding-bottom: 80px;
  }

  .page-contact .contact-rail {
    position: sticky;
    top: calc(var(--header-h-compact) + 28px);
    align-self: start;
  }

  .page-contact .contact-main {
    gap: 80px;
  }

  .page-contact .template-grid {
    grid-template-columns: 1.2fr 1fr;
    gap: 40px;
    align-items: start;
  }

  .page-contact .steps {
    grid-template-columns: repeat(3, 1fr);
    gap: 36px;
    position: relative;
  }

  .page-contact .steps::before {
    content: "";
    position: absolute;
    top: 5px;
    left: 0;
    right: 0;
    height: 1px;
    background: var(--rule);
  }

  .page-contact .step {
    padding-top: 30px;
  }

  .page-contact .step::before {
    display: none;
  }
}

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