.page-contact {
  display: block;
  overflow-x: clip;
  background:
    radial-gradient(1100px 520px at 88% -10%, rgba(53, 224, 200, 0.09), transparent 62%),
    radial-gradient(760px 420px at 4% 22%, rgba(196, 116, 79, 0.09), transparent 68%);
}

.page-contact .contact-shell {
  padding-inline: var(--gap);
  padding-block: 6px 84px;
}

/* ---------- 首屏 ---------- */

.page-contact .contact-masthead {
  display: grid;
  gap: 14px;
  padding: 22px 0 34px;
}

.page-contact .contact-masthead h1 {
  margin: 0;
  max-width: 21ch;
  font-size: clamp(28px, 5.4vw, 46px);
  line-height: 1.22;
  letter-spacing: 0.04em;
  color: var(--cream);
}

.page-contact .contact-masthead__lede {
  margin: 0;
  max-width: 62ch;
  font-size: var(--t-body);
  line-height: 1.75;
  color: #C7D3DC;
}

.page-contact .masthead-jump {
  list-style: none;
  margin: 12px 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.page-contact .jump-link {
  display: inline-flex;
  align-items: center;
  min-height: 42px;
  padding: 0 16px;
  border-radius: 999px;
  border: 1px solid rgba(110, 123, 133, 0.5);
  background: rgba(16, 42, 62, 0.62);
  color: var(--cream);
  font-size: var(--t-note);
  letter-spacing: 0.02em;
  text-decoration: none;
  transition: border-color 0.16s ease, color 0.16s ease, background-color 0.16s ease;
}

.page-contact .jump-link:hover,
.page-contact .jump-link:focus-visible {
  border-color: var(--cyan);
  color: var(--cyan);
  background: var(--cyan-soft);
}

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

/* ---------- 顶部图 ---------- */

.page-contact .contact-hero {
  margin: 6px 0 8px;
  aspect-ratio: 16 / 9;
  border-radius: 20px;
  overflow: hidden;
  border: 1px solid rgba(110, 123, 133, 0.28);
}

.page-contact .contact-hero img,
.page-contact .tech-figure img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* ---------- 需求卡片 ---------- */

.page-contact .contact-flow {
  display: block;
  margin-top: 26px;
}

.page-contact .route-card {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  padding: 30px 0 34px;
  border-top: 1px solid rgba(110, 123, 133, 0.34);
}

.page-contact .route-card__side {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.page-contact .route-card__index {
  align-self: flex-start;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 44px;
  height: 28px;
  padding: 0 12px;
  border-radius: 999px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.12em;
  color: var(--ink);
  background: var(--cyan);
}

.page-contact .contact-flow > .route-card:nth-child(2) .route-card__index { background: var(--moss-lift); }
.page-contact .contact-flow > .route-card:nth-child(3) .route-card__index { background: var(--clay); }
.page-contact .contact-flow > .route-card:nth-child(4) .route-card__index { background: var(--orange); }
.page-contact .contact-flow > .route-card:nth-child(5) .route-card__index {
  background: linear-gradient(120deg, var(--silver-a), var(--silver-b));
}

.page-contact .route-card__title {
  margin: 0;
  font-size: clamp(20px, 3.4vw, 26px);
  line-height: 1.34;
  letter-spacing: 0.04em;
  color: var(--cream);
}

.page-contact .route-card__meta {
  margin: 0;
  font-size: var(--t-note);
  line-height: 1.6;
  color: var(--rock);
}

.page-contact .route-card__body {
  font-size: var(--t-body);
  line-height: 1.75;
  color: var(--cream);
}

.page-contact .route-card__body p {
  margin: 0 0 14px;
  max-width: 68ch;
}

.page-contact .route-card__body p:last-child {
  margin-bottom: 0;
}

/* ---------- 联系方式行 ---------- */

.page-contact .contact-lines {
  display: grid;
  gap: 12px;
  margin: 18px 0;
  padding: 18px 20px;
  border-radius: 16px;
  border: 1px solid rgba(110, 123, 133, 0.36);
  background: rgba(11, 27, 43, 0.78);
}

.page-contact .contact-line {
  display: grid;
  grid-template-columns: 1fr;
  gap: 4px;
}

.page-contact .contact-line dt {
  margin: 0;
  font-size: var(--t-note);
  color: var(--rock);
  letter-spacing: 0.04em;
}

.page-contact .contact-line dd {
  margin: 0;
}

.page-contact .mono {
  font-family: var(--font-mono);
  font-size: 15px;
  letter-spacing: 0.04em;
  color: var(--cyan);
  word-break: break-word;
}

/* ---------- 清单 ---------- */

.page-contact .check-list {
  list-style: none;
  margin: 16px 0 18px;
  padding: 0;
  display: grid;
  gap: 10px;
  max-width: 66ch;
}

.page-contact .check-list li {
  position: relative;
  padding-left: 26px;
  font-size: 16px;
  line-height: 1.65;
  color: var(--cream);
}

.page-contact .check-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 9px;
  height: 9px;
  border-radius: 3px;
  background: var(--cyan);
  box-shadow: 0 0 0 4px rgba(53, 224, 200, 0.13);
}

.page-contact #tech .check-list li::before {
  background: var(--orange);
  box-shadow: 0 0 0 4px var(--orange-soft);
}

/* ---------- 侧注 ---------- */

.page-contact .route-card__note {
  margin-top: 16px;
  padding-left: 13px;
  border-left: 2px solid rgba(53, 224, 200, 0.38);
  font-size: var(--t-note);
  line-height: 1.7;
  color: var(--rock);
  max-width: 66ch;
}

.page-contact .route-card__note a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(53, 224, 200, 0.42);
}

.page-contact .route-card__note a:hover,
.page-contact .route-card__note a:focus-visible {
  border-bottom-color: var(--cyan);
}

.page-contact .route-card__note a:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}

/* ---------- 诊断配图 ---------- */

.page-contact .tech-figure {
  margin: 18px 0 0;
  max-width: 520px;
  aspect-ratio: 4 / 3;
  border-radius: 16px;
  overflow: hidden;
  border: 1px solid rgba(110, 123, 133, 0.3);
}

/* ---------- 地址块 ---------- */

.page-contact .address-block {
  position: relative;
  overflow: hidden;
  margin-top: 20px;
  padding: 20px 22px;
  border-radius: 18px;
  border: 1px solid rgba(110, 123, 133, 0.42);
  background:
    linear-gradient(135deg, rgba(199, 211, 220, 0.11), rgba(124, 143, 160, 0.03)),
    rgba(11, 27, 43, 0.74);
}

.page-contact .address-block::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(124, 143, 160, 0.14) 1px, transparent 1px),
    linear-gradient(90deg, rgba(124, 143, 160, 0.14) 1px, transparent 1px);
  background-size: 30px 30px;
  pointer-events: none;
}

.page-contact .address-block > * {
  position: relative;
  z-index: 1;
}

.page-contact .address-block__label {
  display: block;
  margin-bottom: 8px;
  font-size: var(--t-note);
  letter-spacing: 0.14em;
  color: var(--cyan);
}

.page-contact .address-block__value {
  margin: 0;
  font-style: normal;
  font-size: clamp(18px, 2.8vw, 22px);
  line-height: 1.5;
  letter-spacing: 0.02em;
  color: var(--cream);
}

/* ---------- 收束带 ---------- */

.page-contact .contact-tide {
  margin-top: 58px;
}

.page-contact .contact-tide::before {
  content: "";
  display: block;
  height: 2px;
  margin-bottom: 28px;
  background: var(--tide);
}

.page-contact .contact-tide__inner {
  display: grid;
  gap: 14px;
  padding: 26px 22px;
  border-radius: 20px;
  border: 1px solid rgba(110, 123, 133, 0.34);
  background: linear-gradient(135deg, rgba(16, 42, 62, 0.96), rgba(6, 16, 25, 0.96));
}

.page-contact .contact-tide__title {
  margin: 0 0 8px;
  font-size: 18px;
  letter-spacing: 0.04em;
  color: var(--cream);
}

.page-contact .contact-tide__meta {
  margin: 0;
  font-size: var(--t-note);
  line-height: 1.6;
  color: var(--rock);
}

.page-contact .contact-tide__addr {
  margin: 0;
  font-size: 16px;
  line-height: 1.6;
  color: var(--cream);
}

.page-contact .contact-tide__icp {
  margin: 0;
  font-family: var(--font-mono);
  font-size: var(--t-note);
  letter-spacing: 0.08em;
  color: var(--rock);
}

/* ---------- 桌面栅格 ---------- */

@media (min-width: 720px) {
  .page-contact .contact-line {
    grid-template-columns: 108px 1fr;
    align-items: baseline;
    gap: 12px;
  }

  .page-contact .contact-tide__inner {
    grid-template-columns: 1.4fr 1fr;
    align-items: center;
    padding: 30px 34px;
  }

  .page-contact .contact-tide__icp {
    grid-column: 2;
    text-align: right;
  }

  .page-contact .contact-tide__addr {
    grid-column: 1;
  }
}

@media (min-width: 940px) {
  .page-contact .contact-masthead {
    padding: 34px 0 40px;
    grid-template-columns: minmax(0, 9fr) minmax(0, 3fr);
    align-items: start;
    column-gap: 40px;
  }

  .page-contact .contact-masthead .eyebrow,
  .page-contact .contact-masthead h1,
  .page-contact .contact-masthead__lede {
    grid-column: 1;
  }

  .page-contact .masthead-jump {
    grid-column: 1;
    margin-top: 16px;
  }

  .page-contact .route-card {
    grid-template-columns: minmax(200px, 270px) minmax(0, 1fr);
    gap: 44px;
    padding: 42px 0 46px;
  }

  .page-contact .contact-flow > .route-card:nth-child(even) {
    grid-template-columns: minmax(0, 1fr) minmax(200px, 270px);
  }

  .page-contact .contact-flow > .route-card:nth-child(even) .route-card__side {
    order: 2;
  }

  .page-contact .contact-hero {
    aspect-ratio: 21 / 9;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .jump-link {
    transition: none;
  }
}
</PAGE_CSS>