.page-contact {
  --pc-panel-bg: var(--c-panel);
  --pc-hairline: 1px solid var(--c-stroke);
  background: var(--c-void);
  color: var(--c-text);
  font-family: var(--font-body);
  overflow-x: hidden;
}

/* ---------- 顶部快捷条 ---------- */
.page-contact .contact-topbar {
  position: sticky;
  top: 0;
  z-index: 8;
  background: rgba(5, 8, 15, .94);
  border-bottom: var(--pc-hairline);
  backdrop-filter: blur(8px);
}
.page-contact .contact-topbar__link {
  display: block;
  padding: 12px 0;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .04em;
  color: var(--c-blue);
  text-decoration: none;
  transition: color var(--dur-fast) ease;
}
.page-contact .contact-topbar__link::before {
  content: "→ ";
  color: var(--c-lime);
}
.page-contact .contact-topbar__link:hover,
.page-contact .contact-topbar__link:focus-visible {
  color: var(--c-lime);
}

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  position: relative;
  padding: 28px 0 44px;
  background:
    radial-gradient(120% 100% at 92% 4%, rgba(43, 217, 255, .18), transparent 58%),
    radial-gradient(90% 90% at 0 100%, rgba(200, 255, 61, .12), transparent 62%),
    var(--c-void);
  border-bottom: var(--pc-hairline);
}
.page-contact .contact-hero__grid {
  display: grid;
  gap: 28px;
}
.page-contact .contact-hero__text .breadcrumb {
  margin: 0 0 6px;
}
.page-contact .contact-hero__title {
  position: relative;
  margin: 14px 0 16px;
  padding-top: 20px;
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(26px, 7vw, 44px);
  line-height: 1.18;
  letter-spacing: -.02em;
}
.page-contact .contact-hero__title::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 46px;
  height: 4px;
  background: var(--c-lime);
  transform: skewX(-24deg);
}
.page-contact .contact-hero__lead {
  max-width: 36em;
  margin: 0 0 24px;
  color: var(--c-muted);
  font-size: 16px;
  line-height: 1.78;
}
.page-contact .contact-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}
.page-contact .contact-hero__media {
  position: relative;
  margin: 0;
  background: var(--c-panel);
  border: var(--pc-hairline);
  clip-path: var(--cut-corner);
}
.page-contact .contact-hero__media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
}

/* ---------- 章节底色节奏 ---------- */
.page-contact .contact-band {
  padding: 44px 0;
}
.page-contact .contact-band--forest {
  background: var(--c-forest);
  border-top: var(--pc-hairline);
  border-bottom: var(--pc-hairline);
}
.page-contact .contact-band--indigo {
  background: var(--c-indigo);
  border-top: var(--pc-hairline);
  border-bottom: var(--pc-hairline);
}
.page-contact .contact-band--clip {
  padding-bottom: 96px;
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 56px), 0 100%);
}

/* ---------- 直接联系 ---------- */
.page-contact .contact-reach {
  display: grid;
  gap: 20px;
  margin-top: 28px;
}
.page-contact .contact-reach__mail {
  padding: 22px;
  background:
    linear-gradient(150deg, rgba(200, 255, 61, .09), rgba(5, 8, 15, 0) 62%),
    var(--pc-panel-bg);
  border: var(--pc-hairline);
  border-left: 3px solid var(--c-lime);
}
.page-contact .contact-reach__key {
  display: block;
  margin-bottom: 10px;
  color: var(--c-muted);
}
.page-contact .contact-mail {
  display: inline-block;
  margin: 0 0 12px;
  padding-bottom: 10px;
  font-family: var(--font-mono);
  font-size: clamp(16px, 4.8vw, 28px);
  line-height: 1.3;
  letter-spacing: .01em;
  color: var(--c-lime);
  word-break: break-all;
  border-bottom: 2px solid rgba(200, 255, 61, .45);
}
.page-contact .contact-reach__hint {
  margin: 0;
  color: var(--c-muted);
  font-size: 15px;
  line-height: 1.72;
}
.page-contact .contact-reach__blocks {
  display: grid;
  gap: 20px;
}
.page-contact .contact-block {
  padding: 20px;
  background: var(--pc-panel-bg);
  border: var(--pc-hairline);
  clip-path: var(--cut-corner);
}
.page-contact .contact-block--alt {
  background:
    linear-gradient(160deg, rgba(43, 217, 255, .12), transparent 58%),
    var(--pc-panel-bg);
}
.page-contact .contact-block__key {
  display: block;
  margin-bottom: 10px;
  color: var(--c-muted);
}
.page-contact .contact-block__value {
  margin: 0 0 8px;
  font-family: var(--font-mono);
  font-size: clamp(16px, 4vw, 20px);
  line-height: 1.5;
  color: var(--c-text);
}
.page-contact .contact-block__note {
  margin: 0;
  color: var(--c-muted);
  font-size: 14px;
}

/* ---------- 服务时段时间轴 ---------- */
.page-contact .contact-timeline {
  margin-top: 30px;
}
.page-contact .contact-timeline__axis {
  position: relative;
  height: 10px;
  background: var(--pc-panel-bg);
  border: var(--pc-hairline);
}
.page-contact .contact-timeline__fill {
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, var(--c-lime), var(--c-blue));
  clip-path: var(--cut-slant);
}
.page-contact .contact-timeline__flag {
  position: absolute;
  top: -36px;
  right: 0;
  padding: 4px 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .04em;
  color: #0B0F16;
  background: var(--c-orange);
  opacity: 0;
  transform: translateY(4px);
  transition: opacity var(--dur-fast) ease, transform var(--dur-fast) ease;
  pointer-events: none;
}
.page-contact .contact-timeline:hover .contact-timeline__flag,
.page-contact .contact-timeline:focus-within .contact-timeline__flag {
  opacity: 1;
  transform: translateY(0);
}
.page-contact .contact-timeline__marks {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  margin-top: 10px;
  color: var(--c-muted);
  font-size: 12px;
}
.page-contact .contact-timeline__note {
  margin: 14px 0 0;
  color: var(--c-text);
  font-size: 15px;
  line-height: 1.7;
}

/* ---------- 留言三件事 ---------- */
.page-contact .contact-steps {
  display: grid;
  gap: 18px;
  margin-top: 28px;
}
.page-contact .contact-step {
  padding: 20px;
  background: var(--pc-panel-bg);
  border: var(--pc-hairline);
  border-top: 3px solid var(--c-lime);
}
.page-contact .contact-step--b {
  border-top-color: var(--c-blue);
}
.page-contact .contact-step--c {
  border-top-color: var(--c-orange);
}
.page-contact .contact-step__num {
  display: block;
  color: var(--c-muted);
  letter-spacing: .08em;
}
.page-contact .contact-step__title {
  margin: 10px 0 10px;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: 18px;
  line-height: 1.4;
}
.page-contact .contact-step__text {
  margin: 0;
  color: var(--c-muted);
  font-size: 15px;
  line-height: 1.76;
}

/* ---------- 咨询分类折叠面板 ---------- */
.page-contact .contact-topics {
  display: grid;
  gap: 12px;
  margin-top: 28px;
}
.page-contact .contact-topic {
  background: rgba(12, 21, 35, .9);
  border: var(--pc-hairline);
  border-left: 3px solid var(--c-blue);
}
.page-contact .contact-topic summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 16px 18px;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: 17px;
  line-height: 1.45;
  cursor: pointer;
  list-style: none;
  transition: color var(--dur-fast) ease;
}
.page-contact .contact-topic summary::-webkit-details-marker {
  display: none;
}
.page-contact .contact-topic summary::after {
  content: "+";
  flex: none;
  font-family: var(--font-mono);
  font-size: 20px;
  line-height: 1;
  color: var(--c-lime);
}
.page-contact .contact-topic[open] summary::after {
  content: "–";
}
.page-contact .contact-topic summary:hover {
  color: var(--c-lime);
}
.page-contact .contact-topic summary:focus-visible {
  outline: 2px solid var(--c-blue);
  outline-offset: -2px;
}
.page-contact .contact-topic__body {
  padding: 16px 18px 18px;
  border-top: var(--pc-hairline);
  color: var(--c-muted);
  font-size: 15px;
  line-height: 1.78;
}
.page-contact .contact-topic__body p {
  margin: 0;
}
.page-contact .contact-topic__tag {
  display: block;
  margin-top: 12px;
  color: var(--c-orange);
  font-size: 12px;
}

/* ---------- 来信与到访 ---------- */
.page-contact .contact-visit {
  display: grid;
  gap: 22px;
  margin-top: 28px;
  padding: 24px;
}
.page-contact .contact-visit__media {
  margin: 0;
  border: var(--pc-hairline);
  clip-path: var(--cut-corner);
}
.page-contact .contact-visit__media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 5 / 3;
  object-fit: cover;
}
.page-contact .contact-visit__title {
  margin: 0 0 14px;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: 20px;
  line-height: 1.4;
}
.page-contact .contact-visit__list {
  display: grid;
  gap: 12px;
  margin: 0;
  padding: 0;
  list-style: none;
}
.page-contact .contact-visit__list li {
  position: relative;
  padding-left: 18px;
  color: var(--c-muted);
  font-size: 15px;
  line-height: 1.76;
}
.page-contact .contact-visit__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .72em;
  width: 9px;
  height: 2px;
  background: var(--c-lime);
}

/* ---------- 自助入口 ---------- */
.page-contact .contact-links {
  display: grid;
  gap: 14px;
  margin-top: 28px;
}
.page-contact .contact-link {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 18px;
  background: rgba(12, 21, 35, .82);
  border: var(--pc-hairline);
  color: var(--c-text);
  text-decoration: none;
  transition: transform var(--dur-fast) ease, border-color var(--dur-fast) ease;
}
.page-contact .contact-link:hover,
.page-contact .contact-link:focus-visible {
  transform: translateY(-2px);
  border-color: var(--c-lime);
}
.page-contact .contact-link__key {
  color: var(--c-blue);
  font-size: 12px;
  letter-spacing: .06em;
}
.page-contact .contact-link__title {
  font-family: var(--font-head);
  font-weight: 800;
  font-size: 17px;
}
.page-contact .contact-link__text {
  color: var(--c-muted);
  font-size: 14px;
  line-height: 1.72;
}

/* ---------- 平板 ---------- */
@media (min-width: 640px) {
  .page-contact .contact-reach__blocks {
    grid-template-columns: 1fr 1fr;
  }
  .page-contact .contact-steps {
    grid-template-columns: repeat(3, 1fr);
  }
  .page-contact .contact-links {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* ---------- 桌面 ---------- */
@media (min-width: 900px) {
  .page-contact .contact-hero {
    padding: 48px 0 64px;
  }
  .page-contact .contact-hero__grid {
    grid-template-columns: 1.08fr .92fr;
    align-items: center;
    gap: 48px;
  }
  .page-contact .contact-band {
    padding: 72px 0;
  }
  .page-contact .contact-reach {
    grid-template-columns: 1.05fr .95fr;
    align-items: start;
    gap: 32px;
  }
  .page-contact .contact-reach__blocks {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .page-contact .contact-timeline {
    margin-top: 40px;
  }
  .page-contact .contact-visit {
    grid-template-columns: .9fr 1.1fr;
    align-items: center;
    gap: 32px;
    padding: 32px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .contact-timeline__flag,
  .page-contact .contact-link,
  .page-contact .contact-topbar__link {
    transition: none;
  }
}
</main>