.page-contact {
  --contact-card-pad: 1.5rem;
  background: var(--color-background);
}

/* ===== HERO ===== */
.page-contact .contact-hero {
  background:
    radial-gradient(circle at 85% 12%, rgba(18, 59, 119, 0.38), transparent 38%),
    var(--color-primary-dark);
  padding: calc(var(--header-height) + 3rem) 0 3.5rem;
  position: relative;
  overflow: hidden;
}
.page-contact .contact-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(192, 192, 192, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(192, 192, 192, 0.05) 1px, transparent 1px);
  background-size: 44px 44px;
  -webkit-mask-image: linear-gradient(90deg, transparent 0%, #000 70%);
  mask-image: linear-gradient(90deg, transparent 0%, #000 70%);
}
.page-contact .contact-hero::after {
  content: "";
  position: absolute;
  right: 6%;
  bottom: -18px;
  width: min(280px, 42vw);
  height: 12px;
  background: var(--color-accent);
  transform: skewX(-35deg);
}
.page-contact .contact-hero__inner {
  position: relative;
  z-index: 1;
}
.page-contact .contact-hero .proto-label {
  color: var(--color-accent);
}
.page-contact .contact-hero__grid {
  display: grid;
  gap: 2.25rem;
  margin-top: 2.5rem;
}
.page-contact .contact-hero__title {
  margin: 0.875rem 0 1.125rem;
  color: var(--color-text-inverse);
  font-family: var(--font-heading);
  font-size: clamp(2rem, 6vw, 3.75rem);
  line-height: 1.04;
  letter-spacing: 0.01em;
  text-transform: uppercase;
  font-weight: 700;
}
.page-contact .contact-hero__desc {
  max-width: 34rem;
  color: rgba(255, 255, 255, 0.78);
  font-size: 1rem;
  line-height: 1.8;
}
.page-contact .contact-hero__quick {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1.75rem;
}
.page-contact .contact-hero__aside {
  display: none;
}
.page-contact .contact-hero .breadcrumb-list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
  padding: 0;
  margin: 0;
  list-style: none;
}
.page-contact .contact-hero .breadcrumb-list li {
  color: rgba(255, 255, 255, 0.6);
  font-size: 0.8125rem;
}
.page-contact .contact-hero .breadcrumb-list a {
  color: rgba(255, 255, 255, 0.85);
  text-decoration: none;
}
.page-contact .contact-hero .breadcrumb-list a:hover {
  color: var(--color-accent-light);
}
.page-contact .contact-hero .breadcrumb-list li + li::before {
  content: "/";
  margin-right: 0.5rem;
  color: var(--color-accent);
}

/* ===== 官方联系方式 ===== */
.page-contact .contact-cards {
  padding-top: 4rem;
  padding-bottom: 4rem;
}
.page-contact .section-head {
  text-align: left;
}
.page-contact .section-head--split {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  margin-bottom: 0;
}
.page-contact .contact-cards__note {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  line-height: 1.6;
  letter-spacing: 0.05em;
  color: var(--color-text-muted);
  text-transform: uppercase;
}
.page-contact .contact-cards__note::before {
  content: "";
  width: 28px;
  height: 2px;
  flex-shrink: 0;
  background: var(--color-accent);
}
.page-contact .contact-cards__stage {
  display: grid;
  gap: 1.75rem;
  margin-top: 2.5rem;
}
.page-contact .contact-cards__primary {
  display: grid;
  gap: 1.25rem;
}
.page-contact .contact-card {
  position: relative;
  border: 1px solid rgba(192, 192, 192, 0.5);
  border-radius: 2px;
  background: #ffffff;
  padding: var(--contact-card-pad);
  box-shadow: var(--shadow-card);
}
.page-contact .contact-card--email {
  border-top: 3px solid var(--color-accent);
}
.page-contact .contact-card__top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1rem;
}
.page-contact .contact-card__index {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--color-silver);
  letter-spacing: 0.08em;
}
.page-contact .contact-card h3 {
  margin: 0 0 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  color: var(--color-text-muted);
}
.page-contact .contact-card__value {
  display: block;
  margin: 0 0 0.75rem;
  color: var(--color-text-major);
  font-family: var(--font-heading);
  font-size: 1.375rem;
  font-weight: 600;
  line-height: 1.35;
  word-break: break-word;
}
.page-contact .contact-card__value--email {
  display: inline-block;
  padding: 0.25rem 0.5rem;
  font-family: var(--font-mono);
  font-size: clamp(1.375rem, 3vw, 2rem);
  font-weight: 500;
  line-height: 1.6;
  color: var(--color-primary);
  background: linear-gradient(90deg, rgba(255, 107, 53, 0.14), rgba(255, 107, 53, 0));
  border-left: 2px solid var(--color-accent);
}
.page-contact .contact-card__note {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  margin: 0;
  color: var(--color-text-muted);
  font-size: 0.85rem;
}
.page-contact .contact-card__note::before {
  content: "";
  width: 6px;
  height: 6px;
  flex-shrink: 0;
  border: 1px solid var(--color-accent);
  transform: rotate(45deg);
}
.page-contact .contact-cards__media {
  position: relative;
  align-self: stretch;
  margin: 0;
}
.page-contact .contact-cards__media::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  background: linear-gradient(135deg, transparent 55%, rgba(255, 107, 53, 0.14) 100%);
}
.page-contact .contact-cards__media img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
}
.page-contact .contact-cards__media figcaption {
  margin-top: 0.75rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  line-height: 1.6;
  color: var(--color-text-muted);
}

/* ===== 客户支持说明 ===== */
.page-contact .contact-support {
  position: relative;
  padding: 4rem 0;
  overflow: hidden;
  background: var(--color-primary);
  color: var(--color-text-inverse);
}
.page-contact .contact-support::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  width: 100%;
  height: 4px;
  background: linear-gradient(90deg, var(--color-accent), var(--color-accent-light));
}
.page-contact .contact-support__inner {
  display: grid;
  gap: 2.25rem;
}
.page-contact .contact-support .proto-label {
  color: var(--color-accent-light);
}
.page-contact .contact-support .section-title {
  color: var(--color-text-inverse);
  margin-top: 0.5rem;
}
.page-contact .contact-support__statement {
  max-width: 30rem;
  margin: 1.25rem 0 0;
  color: #ffffff;
  font-family: var(--font-heading);
  font-size: clamp(1.25rem, 2.4vw, 1.875rem);
  line-height: 1.4;
  font-weight: 600;
}
.page-contact .contact-support__statement::after {
  content: "";
  display: block;
  width: 48px;
  height: 4px;
  margin-top: 1.25rem;
  background: var(--color-accent);
}
.page-contact .contact-support__content {
  border-left: 1px solid rgba(192, 192, 192, 0.3);
  padding-left: 1.5rem;
}
.page-contact .contact-support__content p {
  margin: 0 0 1.5rem;
  color: rgba(255, 255, 255, 0.72);
  font-size: 0.95rem;
  line-height: 1.8;
}
.page-contact .contact-support__list {
  display: grid;
  gap: 0.75rem;
  margin: 0;
  padding: 0;
  list-style: none;
}
.page-contact .contact-support__list li {
  position: relative;
  padding-left: 1.25rem;
  color: rgba(255, 255, 255, 0.82);
  font-size: 0.9rem;
  line-height: 1.6;
}
.page-contact .contact-support__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.6em;
  width: 6px;
  height: 6px;
  background: var(--color-accent);
  transform: rotate(45deg);
}

/* ===== 在线咨询引导 ===== */
.page-contact .contact-guide {
  padding-top: 4rem;
  padding-bottom: 4rem;
  background: var(--color-background);
}
.page-contact .contact-guide__grid {
  display: grid;
  gap: 1.5rem;
  margin-top: 2.25rem;
}
.page-contact .contact-guide__faq,
.page-contact .contact-guide__topics {
  border: 1px solid rgba(192, 192, 192, 0.5);
  background: #ffffff;
  padding: 1.75rem;
  box-shadow: var(--shadow-card);
}
.page-contact .contact-guide .toc-title,
.page-contact .contact-guide__subtitle {
  margin: 0 0 0.75rem;
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: 600;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  color: var(--color-text-major);
}
.page-contact .contact-guide__list {
  margin: 1rem 0 1.25rem;
  padding: 0;
  list-style: none;
}
.page-contact .contact-guide__list li {
  padding: 0.6rem 0;
  border-bottom: 1px dashed rgba(192, 192, 192, 0.55);
  color: var(--color-text-major);
  font-size: 0.9rem;
  line-height: 1.6;
}
.page-contact .contact-guide__list li:last-child {
  border-bottom: none;
}
.page-contact .contact-guide__list li::before {
  content: "/";
  margin-right: 0.75rem;
  font-family: var(--font-mono);
  color: var(--color-accent);
}
.page-contact .contact-guide__tip {
  margin: 1.25rem 0 0;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  line-height: 1.6;
  color: var(--color-text-muted);
}

/* ===== 隐私承诺 ===== */
.page-contact .contact-privacy {
  position: relative;
  padding-top: 4rem;
  padding-bottom: 4rem;
  overflow: hidden;
  background: #ffffff;
  border-top: 1px solid rgba(192, 192, 192, 0.4);
}
.page-contact .contact-privacy .container {
  position: relative;
  z-index: 1;
  text-align: center;
}
.page-contact .contact-privacy__text {
  max-width: 42rem;
  margin: 1rem auto 1.75rem;
  color: var(--color-text-major);
  font-size: 0.95rem;
  line-height: 1.85;
}
.page-contact .contact-privacy__stamp {
  position: absolute;
  right: -30px;
  top: 50%;
  z-index: 0;
  transform: translateY(-50%) rotate(-8deg);
  font-family: var(--font-heading);
  font-size: 7rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: rgba(255, 107, 53, 0.08);
  pointer-events: none;
}

/* ===== 底部品牌氛围 ===== */
.page-contact .contact-outro {
  padding: 3rem 0;
  overflow: hidden;
  background: var(--color-primary-dark);
}
.page-contact .contact-outro__frame {
  position: relative;
}
.page-contact .contact-outro__frame::after {
  content: "";
  position: absolute;
  right: 12px;
  top: -12px;
  width: 40px;
  height: 40px;
  border-top: 3px solid var(--color-accent);
  border-right: 3px solid var(--color-accent);
}
.page-contact .contact-outro__frame img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
}
.page-contact .contact-outro__note {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  padding-top: 1.5rem;
}
.page-contact .contact-outro__text {
  margin: 0;
  color: rgba(255, 255, 255, 0.78);
  font-size: 0.875rem;
  line-height: 1.6;
}
.page-contact .contact-outro__meta {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.06em;
  color: var(--color-accent);
}

/* ===== 桌面增强 ===== */
@media (min-width: 900px) {
  .page-contact .contact-hero {
    padding-top: calc(var(--header-height) + 4.5rem);
    padding-bottom: 5rem;
  }
  .page-contact .contact-hero__grid {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: end;
    gap: 3rem;
  }
  .page-contact .contact-hero__aside {
    display: block;
  }
  .page-contact .contact-hero__code {
    display: inline-block;
    border-left: 1px solid rgba(192, 192, 192, 0.3);
    padding-left: 0.75rem;
    font-family: var(--font-mono);
    font-size: 0.8125rem;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: rgba(255, 255, 255, 0.4);
    writing-mode: vertical-rl;
  }
  .page-contact .section-head--split {
    flex-direction: row;
    align-items: flex-end;
    justify-content: space-between;
  }
  .page-contact .contact-cards__stage {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
    gap: 2rem;
    align-items: start;
    margin-top: 2.75rem;
  }
  .page-contact .contact-cards__primary {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1.25rem;
    align-items: start;
  }
  .page-contact .contact-card--email {
    grid-column: span 2;
  }
  .page-contact .contact-cards__media {
    position: sticky;
    top: calc(var(--header-height) + 24px);
  }
  .page-contact .contact-support__inner {
    grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
    gap: 4rem;
    align-items: end;
  }
  .page-contact .contact-guide__grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    gap: 2rem;
    align-items: stretch;
  }
}

@media (min-width: 1200px) {
  .page-contact .contact-cards__stage {
    gap: 3.5rem;
  }
  .page-contact .contact-card__value {
    font-size: 1.5rem;
  }
  .page-contact .contact-support__inner {
    gap: 6rem;
  }
}

/* ===== 减动效适配 ===== */
@media (prefers-reduced-motion: reduce) {
  .page-contact [data-reveal] {
    opacity: 1;
    transform: none;
  }
}