.page-contact {
  --pc-hair: rgba(237, 228, 211, .16);
  --pc-hair-strong: rgba(237, 228, 211, .34);
  --pc-hair-ink: rgba(16, 18, 20, .12);
  --pc-ink-soft: rgba(16, 18, 20, .68);
  background: var(--night);
  color: var(--sand);
  font-family: var(--font-body);
  overflow-x: hidden;
}

.page-contact a {
  color: inherit;
}

/* ---------- 首屏 ---------- */

.page-contact .contact-hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  background: var(--night);
  padding: 26px 0 56px;
}

.page-contact .contact-hero::after {
  content: "";
  position: absolute;
  z-index: 0;
  top: -38%;
  right: -26%;
  width: 68%;
  height: 190%;
  background: linear-gradient(165deg, var(--pitch) 0%, #08221a 100%);
  transform: rotate(11deg);
  pointer-events: none;
}

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

.page-contact .breadcrumbs {
  margin: 0 0 26px;
  font-size: 13px;
  letter-spacing: .08em;
  color: rgba(237, 228, 211, .58);
}

.page-contact .breadcrumbs a {
  text-decoration: none;
  color: rgba(237, 228, 211, .82);
}

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

.page-contact .contact-hero__grid {
  display: grid;
  gap: 34px;
}

.page-contact .contact-hero__copy h1 {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(30px, 6.4vw, 58px);
  line-height: 1.04;
  letter-spacing: -.01em;
  margin: 14px 0 0;
  color: #fff;
  max-width: 18ch;
}

.page-contact .contact-hero__lead {
  margin: 20px 0 0;
  max-width: 56ch;
  font-size: 17px;
  line-height: 1.85;
  color: rgba(237, 228, 211, .84);
}

.page-contact .contact-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.page-contact .contact-hero__media {
  aspect-ratio: 3 / 2;
  width: 100%;
  border: 1px solid var(--pc-hair);
  box-shadow: var(--shadow-lift);
}

.page-contact .contact-hero__media img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* ---------- 通用区块 ---------- */

.page-contact .section {
  background: var(--night);
}

.page-contact .section__head {
  margin-bottom: 30px;
}

.page-contact .section__title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(24px, 4.4vw, 40px);
  line-height: 1.1;
  letter-spacing: -.005em;
  margin: 10px 0 0;
  color: #fff;
}

.page-contact .label {
  color: var(--cyan);
}

.page-contact .label--onDark {
  color: var(--cyan);
}

/* ---------- 分诊区 ---------- */

.page-contact .triage-board {
  display: flex;
  flex-direction: column;
  gap: 28px;
}

.page-contact .triage-board .chip-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-contact .triage-grid {
  display: grid;
  gap: 18px;
}

.page-contact .triage-card {
  position: relative;
  background: var(--paper);
  color: var(--ink);
  border: 1px solid var(--pc-hair-ink);
  border-left: 3px solid var(--pitch);
  border-radius: var(--radius);
  box-shadow: var(--shadow-card);
  padding: 22px 20px 24px;
  transition: transform .24s ease, box-shadow .24s ease, border-left-color .24s ease;
}

.page-contact .triage-card:hover,
.page-contact .triage-card:focus-within {
  transform: translateY(-3px);
  box-shadow: var(--shadow-lift);
  border-left-color: var(--cyan);
}

.page-contact .triage-card__num {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .12em;
  color: var(--grey);
}

.page-contact .triage-card__title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 20px;
  line-height: 1.25;
  margin: 8px 0 10px;
  color: var(--ink);
}

.page-contact .triage-card__body {
  margin: 0;
  font-size: 15.5px;
  line-height: 1.8;
  color: var(--pc-ink-soft);
}

.page-contact .triage-card__tips {
  margin-top: 14px;
  padding-top: 14px;
  border-top: 1px solid var(--pc-hair-ink);
}

.page-contact .triage-card__tips-label {
  margin: 0 0 8px;
  font-size: 12px;
  letter-spacing: .1em;
  font-weight: 600;
  color: var(--orange);
}

.page-contact .triage-card__tips ul {
  margin: 0;
  padding-left: 0;
  list-style: none;
}

.page-contact .triage-card__tips li {
  position: relative;
  padding-left: 16px;
  margin-bottom: 6px;
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--pc-ink-soft);
}

.page-contact .triage-card__tips li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .72em;
  width: 6px;
  height: 1px;
  background: var(--cyan);
}

.page-contact .is-filtered-out {
  display: none;
}

/* ---------- 提交清单 ---------- */

.page-contact .checklist {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--pc-hair);
}

.page-contact .checklist__item {
  display: grid;
  grid-template-columns: 40px 1fr;
  gap: 14px;
  padding: 20px 0;
  border-bottom: 1px solid var(--pc-hair);
}

.page-contact .checklist__num {
  font-family: var(--font-mono);
  font-size: 20px;
  line-height: 1.2;
  color: var(--cyan);
}

.page-contact .checklist__title {
  margin: 0 0 6px;
  font-size: 17px;
  font-weight: 600;
  color: #fff;
}

.page-contact .checklist__item p {
  margin: 0;
  font-size: 15.5px;
  line-height: 1.8;
  color: rgba(237, 228, 211, .76);
}

.page-contact .contact-rail {
  margin-top: 34px;
  color: rgba(237, 228, 211, .8);
}

.page-contact .contact-rail p {
  margin: 0 0 14px;
  font-size: 15px;
  line-height: 1.85;
}

.page-contact .contact-rail a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(47, 227, 200, .45);
}

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

/* ---------- 时效说明 ---------- */

.page-contact .sla-band {
  position: relative;
  overflow: hidden;
  background: var(--pitch);
  color: var(--sand);
  border-radius: var(--radius);
  padding: 32px 20px 36px;
}

.page-contact .sla-band::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--cyan) 0%, var(--cyan) 36%, rgba(47, 227, 200, .12) 36%, rgba(47, 227, 200, .12) 100%);
}

.page-contact .sla-band__head h2 {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(23px, 4.2vw, 36px);
  line-height: 1.12;
  margin: 10px 0 0;
  color: #fff;
}

.page-contact .sla-band__lead {
  margin: 14px 0 0;
  max-width: 58ch;
  font-size: 16px;
  line-height: 1.85;
  color: rgba(237, 228, 211, .82);
}

.page-contact .sla-list {
  list-style: none;
  margin: 26px 0 0;
  padding: 0;
}

.page-contact .sla-item {
  display: grid;
  grid-template-columns: 36px 1fr;
  gap: 14px;
  padding: 18px 0;
  border-top: 1px solid var(--pc-hair);
}

.page-contact .sla-item__rank {
  font-family: var(--font-mono);
  font-size: 20px;
  line-height: 1.15;
  color: var(--orange);
}

.page-contact .sla-item__title {
  margin: 0 0 6px;
  font-size: 17px;
  font-weight: 600;
  color: #fff;
}

.page-contact .sla-item p {
  margin: 0;
  font-size: 15.5px;
  line-height: 1.8;
  color: rgba(237, 228, 211, .76);
}

/* ---------- 合作 ---------- */

.page-contact .partner-lead {
  margin: 0 0 26px;
  max-width: 62ch;
  font-size: 16.5px;
  line-height: 1.9;
  color: rgba(237, 228, 211, .82);
}

.page-contact .partner-steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-contact .partner-step {
  background: rgba(237, 228, 211, .04);
  border: 1px solid var(--pc-hair);
  border-radius: var(--radius);
  padding: 18px 18px 20px;
}

.page-contact .partner-step__index {
  margin: 0 0 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--cyan);
}

.page-contact .partner-step__title {
  margin: 0 0 6px;
  font-size: 17px;
  font-weight: 600;
  color: #fff;
}

.page-contact .partner-step p {
  margin: 0;
  font-size: 15.5px;
  line-height: 1.8;
  color: rgba(237, 228, 211, .76);
}

.page-contact .partner-panel {
  margin-top: 30px;
  padding: 22px 20px 24px;
  background: var(--slate);
  border-radius: var(--radius);
  border-top: 3px solid var(--orange);
}

.page-contact .partner-panel p {
  margin: 0 0 14px;
  font-size: 15.5px;
  line-height: 1.85;
  color: rgba(237, 228, 211, .84);
}

.page-contact .partner-panel__link {
  display: inline-block;
  font-weight: 600;
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(47, 227, 200, .45);
  padding-bottom: 2px;
}

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

/* ---------- 联系方式 ---------- */

.page-contact .reach-grid {
  display: grid;
  gap: 0;
  border-top: 1px solid var(--pc-hair);
}

.page-contact .reach-item {
  padding: 22px 0;
  border-bottom: 1px solid var(--pc-hair);
}

.page-contact .reach-item .label {
  color: var(--grey);
}

.page-contact .reach-value {
  margin: 8px 0 0;
  font-size: 19px;
  font-weight: 600;
  line-height: 1.4;
  color: #fff;
  word-break: break-word;
}

.page-contact .reach-value--mono {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  letter-spacing: .01em;
}

.page-contact .reach-note {
  margin: 10px 0 0;
  max-width: 52ch;
  font-size: 15px;
  line-height: 1.8;
  color: rgba(237, 228, 211, .72);
}

.page-contact .reach-tail {
  margin: 28px 0 0;
  font-size: 15px;
  line-height: 1.85;
  color: rgba(237, 228, 211, .72);
}

.page-contact .reach-tail a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(47, 227, 200, .45);
}

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

/* ---------- 收尾通栏 ---------- */

.page-contact .contact-closing {
  margin: 0;
  display: block;
  position: relative;
  overflow: hidden;
}

.page-contact .contact-closing img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
  aspect-ratio: 4 / 3;
  filter: saturate(.9);
}

/* ---------- 响应式 ---------- */

@media (min-width: 640px) {
  .page-contact .contact-hero {
    padding: 30px 0 72px;
  }

  .page-contact .triage-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 20px;
  }

  .page-contact .triage-card:nth-child(2n) {
    margin-top: 30px;
  }

  .page-contact .sla-band {
    padding: 38px 32px 42px;
  }

  .page-contact .sla-item {
    grid-template-columns: 44px 1fr;
    gap: 20px;
  }

  .page-contact .checklist__item {
    grid-template-columns: 52px 1fr;
    gap: 20px;
  }

  .page-contact .reach-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 0 28px;
  }

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

@media (min-width: 900px) {
  .page-contact .contact-hero__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: 46px;
    align-items: center;
  }

  .page-contact .contact-rail {
    margin-top: 64px;
  }

  .page-contact .partner-panel {
    margin-top: 78px;
  }
}

@media (min-width: 1080px) {
  .page-contact .triage-grid {
    grid-template-columns: repeat(12, minmax(0, 1fr));
    gap: 24px;
  }

  .page-contact .triage-card {
    grid-column: span 6;
  }

  .page-contact .triage-card:nth-child(1) {
    grid-column: 1 / span 7;
    margin-top: 0;
  }

  .page-contact .triage-card:nth-child(2) {
    grid-column: 8 / span 5;
    margin-top: 48px;
  }

  .page-contact .triage-card:nth-child(3) {
    grid-column: 1 / span 5;
    margin-top: 0;
  }

  .page-contact .triage-card:nth-child(4) {
    grid-column: 6 / span 7;
    margin-top: 0;
  }
}

@media (hover: hover) and (pointer: fine) {
  .page-contact .triage-card__tips {
    max-height: 0;
    opacity: 0;
    overflow: hidden;
    margin-top: 0;
    padding-top: 0;
    border-top-color: transparent;
    transition: max-height .3s ease, opacity .24s ease, margin-top .3s ease, padding-top .3s ease;
  }

  .page-contact .triage-card:hover .triage-card__tips,
  .page-contact .triage-card:focus-within .triage-card__tips {
    max-height: 320px;
    opacity: 1;
    margin-top: 14px;
    padding-top: 14px;
    border-top-color: var(--pc-hair-ink);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .triage-card,
  .page-contact .triage-card__tips {
    transition: none;
  }

  .page-contact .triage-card:hover {
    transform: none;
  }
}
<<<END>>>