.page-contact {
  --pc-gap: clamp(18px, 3vw, 28px);
  --pc-border: 1px solid var(--line-soft);
  --pc-amber-line: rgba(242, 184, 75, .55);
  background: var(--ink-900);
  color: var(--paper);
  overflow-x: hidden;
}

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

.page-contact .block-head {
  max-width: 66ch;
}

.page-contact .block-lead {
  margin: 14px 0 0;
  font-size: var(--fs-16);
  line-height: 1.85;
  color: var(--paper-dim);
}

.page-contact .display-2 {
  margin: 12px 0 0;
  letter-spacing: -.01em;
}

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  position: relative;
  padding-block: clamp(22px, 4vw, 48px) clamp(38px, 6vw, 78px);
  background:
    radial-gradient(95% 75% at 6% 0%, #0D2236 0%, rgba(7, 19, 31, 0) 62%),
    radial-gradient(70% 60% at 100% 10%, rgba(242, 184, 75, .08) 0%, rgba(7, 19, 31, 0) 70%),
    var(--ink-900);
  border-bottom: 1px solid var(--line-soft);
}

.page-contact .hero-grid {
  display: grid;
  gap: clamp(26px, 4vw, 46px);
  margin-top: clamp(20px, 3vw, 34px);
}

.page-contact .hero-main .display-1 {
  margin: 14px 0 0;
  max-width: 16ch;
  letter-spacing: -.02em;
}

.page-contact .hero-main .lede {
  margin: 20px 0 0;
  max-width: 48ch;
  font-size: var(--fs-16);
  line-height: 1.9;
  color: var(--paper-dim);
}

.page-contact .hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(22px, 3vw, 32px);
}

.page-contact .flow-card {
  position: relative;
  padding: clamp(18px, 2.6vw, 28px);
  border: var(--pc-border);
  border-radius: var(--radius-lg);
  background: linear-gradient(180deg, rgba(13, 34, 54, .96) 0%, rgba(9, 26, 41, .96) 100%);
  box-shadow: 0 26px 64px rgba(0, 0, 0, .38);
}

.page-contact .flow-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: clamp(18px, 2.6vw, 28px);
  right: clamp(18px, 2.6vw, 28px);
  height: 1px;
  background: linear-gradient(90deg, var(--amber) 0%, rgba(242, 184, 75, 0) 86%);
}

.page-contact .flow-card__head {
  margin: 0 0 20px;
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: .14em;
  color: var(--mist);
}

.page-contact .flow-steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 4px;
}

.page-contact .flow-step {
  position: relative;
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr);
  gap: 12px;
  align-items: start;
  padding-bottom: 16px;
}

.page-contact .flow-step:last-child {
  padding-bottom: 0;
}

.page-contact .flow-step:not(:last-child)::after {
  content: "";
  position: absolute;
  left: 17px;
  top: 36px;
  bottom: 2px;
  width: 1px;
  background: linear-gradient(180deg, var(--line) 0%, rgba(36, 64, 90, 0) 100%);
}

.page-contact .flow-no {
  width: 34px;
  height: 34px;
  display: grid;
  place-items: center;
  border: 1px solid rgba(242, 184, 75, .45);
  border-radius: 50%;
  background: var(--amber-dim);
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  color: var(--amber);
}

.page-contact .flow-step__title {
  margin: 4px 0 0;
  font-size: var(--fs-16);
  font-weight: 600;
  color: var(--paper);
}

.page-contact .flow-step__text {
  margin: 6px 0 0;
  font-size: var(--fs-14);
  line-height: 1.75;
  color: var(--mist);
}

.page-contact .flow-figure {
  margin: 22px 0 0;
  border-radius: var(--radius-md);
  overflow: hidden;
  border: var(--pc-border);
}

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

/* ---------- 产品线选择 ---------- */
.page-contact .lines {
  padding-block: clamp(38px, 6vw, 78px);
  border-top: 1px solid var(--line-soft);
}

.page-contact .line-switch {
  position: relative;
  margin-top: clamp(24px, 3.4vw, 38px);
}

.page-contact .line-input {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
  border: 0;
}

.page-contact .line-labels {
  display: flex;
  flex-wrap: wrap;
  gap: 2px;
  width: fit-content;
  max-width: 100%;
  padding: 4px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(9, 26, 41, .75);
}

.page-contact .line-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 16px;
  border-radius: 999px;
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: .06em;
  color: var(--mist);
  cursor: pointer;
  transition: background .22s var(--ease), color .22s var(--ease);
}

.page-contact .line-label:hover {
  color: var(--paper);
  background: rgba(36, 64, 90, .45);
}

.page-contact .line-label__no {
  color: rgba(168, 184, 200, .66);
  transition: color .22s var(--ease);
}

.page-contact #line-desktop:checked ~ .line-labels [for="line-desktop"],
.page-contact #line-mobile:checked ~ .line-labels [for="line-mobile"],
.page-contact #line-web:checked ~ .line-labels [for="line-web"],
.page-contact #line-docs:checked ~ .line-labels [for="line-docs"] {
  background: var(--amber);
  color: var(--ink-900);
  font-weight: 700;
}

.page-contact #line-desktop:checked ~ .line-labels [for="line-desktop"] .line-label__no,
.page-contact #line-mobile:checked ~ .line-labels [for="line-mobile"] .line-label__no,
.page-contact #line-web:checked ~ .line-labels [for="line-web"] .line-label__no,
.page-contact #line-docs:checked ~ .line-labels [for="line-docs"] .line-label__no {
  color: rgba(7, 19, 31, .55);
}

.page-contact .line-input:focus-visible ~ .line-labels {
  outline: 2px solid var(--hit);
  outline-offset: 4px;
}

.page-contact .line-panels {
  margin-top: clamp(20px, 3vw, 30px);
}

.page-contact .line-panel {
  display: none;
  padding-left: clamp(14px, 2.2vw, 24px);
  border-left: 2px solid var(--hit);
}

.page-contact #line-desktop:checked ~ .line-panels .line-panel--desktop,
.page-contact #line-mobile:checked ~ .line-panels .line-panel--mobile,
.page-contact #line-web:checked ~ .line-panels .line-panel--web,
.page-contact #line-docs:checked ~ .line-panels .line-panel--docs {
  display: block;
}

.page-contact .panel-title {
  margin: 0 0 10px;
  font-size: var(--fs-20);
  font-weight: 700;
  color: var(--paper);
}

.page-contact .panel-lead {
  margin: 0;
  max-width: 64ch;
  font-size: var(--fs-16);
  line-height: 1.85;
  color: var(--paper-dim);
}

.page-contact .panel-list {
  list-style: none;
  margin: 16px 0 0;
  padding: 0;
  display: grid;
  gap: 9px;
}

.page-contact .panel-list li {
  position: relative;
  padding-left: 20px;
  font-size: var(--fs-14);
  line-height: 1.75;
  color: var(--mist);
}

.page-contact .panel-list li::before {
  content: "";
  position: absolute;
  left: 3px;
  top: .74em;
  width: 6px;
  height: 6px;
  border-radius: 1px;
  background: var(--hit);
}

.page-contact .panel-links {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  margin: 20px 0 0;
}

.page-contact .panel-links a {
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: .04em;
  color: var(--amber-soft);
  text-decoration: none;
  border-bottom: 1px solid rgba(242, 184, 75, .38);
  padding-bottom: 3px;
  transition: color .2s var(--ease), border-color .2s var(--ease);
}

.page-contact .panel-links a:hover {
  color: var(--amber);
  border-color: var(--amber);
}

/* ---------- 联系 ---------- */
.page-contact .contact-block {
  padding-block: clamp(38px, 6vw, 80px);
  background: linear-gradient(180deg, #07131F 0%, #091A29 100%);
  border-top: 1px solid var(--line-soft);
}

.page-contact .contact-layout {
  display: grid;
  gap: clamp(26px, 4vw, 48px);
}

.page-contact .lead-soft {
  margin: 16px 0 0;
  max-width: 52ch;
  font-size: var(--fs-16);
  line-height: 1.9;
  color: var(--paper-dim);
}

.page-contact .contact-card {
  padding: clamp(20px, 3vw, 30px);
  border: 1px solid var(--pc-amber-line);
  border-radius: var(--radius-lg);
  background: rgba(13, 34, 54, .94);
  box-shadow: 0 30px 70px rgba(0, 0, 0, .44);
}

.page-contact .contact-row {
  display: grid;
  gap: 6px;
  padding: 14px 0;
  border-bottom: 1px dashed var(--line-soft);
}

.page-contact .contact-row:first-child {
  padding-top: 0;
}

.page-contact .contact-key {
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: .14em;
  color: var(--amber);
}

.page-contact .contact-val {
  font-size: var(--fs-20);
  font-weight: 600;
  line-height: 1.6;
  color: var(--paper);
  word-break: break-word;
}

.page-contact .contact-val a {
  color: inherit;
  text-decoration: none;
  border-bottom: 1px solid rgba(57, 208, 176, .45);
  transition: border-color .2s var(--ease), color .2s var(--ease);
}

.page-contact .contact-val a:hover {
  color: var(--hit);
  border-color: var(--hit);
}

.page-contact .contact-note {
  margin: 18px 0 0;
  font-size: var(--fs-14);
  line-height: 1.8;
  color: var(--mist);
}

/* ---------- 汇总 ---------- */
.page-contact .digest {
  padding-block: clamp(38px, 6vw, 78px);
  border-top: 1px solid var(--line-soft);
}

.page-contact .digest-grid {
  display: grid;
  gap: clamp(26px, 4vw, 48px);
}

.page-contact .digest-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 14px;
  margin-top: 26px;
}

.page-contact .digest-stat {
  padding: 18px 16px;
  border: var(--pc-border);
  border-radius: var(--radius-md);
  background: rgba(13, 34, 54, .62);
}

.page-contact .digest-num {
  display: block;
  font-family: var(--font-mono);
  font-size: var(--fs-28);
  font-weight: 700;
  line-height: 1.2;
  color: var(--hit);
}

.page-contact .digest-cap {
  display: block;
  margin-top: 8px;
  font-size: var(--fs-12);
  letter-spacing: .04em;
  color: var(--mist);
}

.page-contact .fold {
  margin-top: 14px;
  padding: 0 18px;
  border: var(--pc-border);
  border-radius: var(--radius-md);
  background: rgba(13, 34, 54, .55);
}

.page-contact .fold > summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 15px 0;
  list-style: none;
  cursor: pointer;
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: .08em;
  color: var(--amber-soft);
}

.page-contact .fold > summary::-webkit-details-marker {
  display: none;
}

.page-contact .fold > summary::after {
  content: "+";
  font-size: var(--fs-16);
  line-height: 1;
  color: var(--amber);
}

.page-contact .fold[open] > summary::after {
  content: "\2212";
}

.page-contact .fold__body {
  padding-bottom: 18px;
}

.page-contact .fold__body p {
  margin: 0;
  font-size: var(--fs-14);
  line-height: 1.85;
  color: var(--mist);
}

/* ---------- 服务范围 ---------- */
.page-contact .scope-band {
  padding-block: clamp(38px, 6vw, 82px);
  background: var(--paper);
  color: var(--ink-900);
}

.page-contact .scope-band .eyebrow {
  color: var(--hit-deep);
}

.page-contact .scope-band .display-2 {
  color: var(--ink-900);
}

.page-contact .scope-lead {
  margin: 14px 0 0;
  max-width: 64ch;
  font-size: var(--fs-16);
  line-height: 1.85;
  color: rgba(7, 19, 31, .74);
}

.page-contact .scope-grid {
  display: grid;
  gap: 12px;
  margin-top: clamp(24px, 3.4vw, 34px);
}

.page-contact .scope-item {
  padding: 0 18px;
  border: 1px solid rgba(36, 64, 90, .28);
  border-radius: var(--radius-md);
  background: #FFFFFF;
  transition: border-color .2s var(--ease), box-shadow .2s var(--ease);
}

.page-contact .scope-item:hover {
  border-color: rgba(27, 127, 108, .5);
}

.page-contact .scope-item[open] {
  border-color: rgba(27, 127, 108, .62);
  box-shadow: inset 2px 0 0 var(--hit-deep);
}

.page-contact .scope-item > summary {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 16px 0;
  list-style: none;
  cursor: pointer;
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  font-weight: 700;
  letter-spacing: .1em;
  color: var(--ink-800);
}

.page-contact .scope-item > summary::-webkit-details-marker {
  display: none;
}

.page-contact .scope-item > summary::before {
  content: "";
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--hit-deep);
}

.page-contact .scope-item > summary::after {
  content: "展开";
  margin-left: auto;
  font-size: 11px;
  font-weight: 400;
  letter-spacing: .06em;
  color: var(--hit-deep);
}

.page-contact .scope-item[open] > summary::after {
  content: "收起";
}

.page-contact .scope-item__body {
  padding-bottom: 18px;
}

.page-contact .scope-item__body p {
  margin: 0;
  font-size: var(--fs-14);
  line-height: 1.8;
  color: #33475B;
}

.page-contact .scope-item__body a {
  color: var(--hit-deep);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- 准备清单 ---------- */
.page-contact .prep {
  padding-block: clamp(38px, 6vw, 78px);
  border-top: 1px solid var(--line-soft);
}

.page-contact .prep-grid {
  display: grid;
  gap: 18px;
  margin-top: clamp(24px, 3.4vw, 36px);
}

.page-contact .prep-item {
  padding-top: 16px;
  border-top: 2px solid var(--line);
}

.page-contact .prep-no {
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: .16em;
  color: var(--amber);
}

.page-contact .prep-title {
  margin: 12px 0 0;
  font-size: var(--fs-16);
  font-weight: 700;
  color: var(--paper);
}

.page-contact .prep-text {
  margin: 8px 0 0;
  font-size: var(--fs-14);
  line-height: 1.8;
  color: var(--mist);
}

/* ---------- 江苏服务 ---------- */
.page-contact .region {
  padding-block: clamp(38px, 6vw, 82px);
  border-top: 1px solid var(--line-soft);
  background:
    radial-gradient(80% 70% at 90% 100%, rgba(57, 208, 176, .07) 0%, rgba(7, 19, 31, 0) 70%),
    var(--ink-900);
}

.page-contact .region-inner {
  display: grid;
  gap: clamp(26px, 4vw, 46px);
}

.page-contact .region-list {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 24px 0 0;
  padding: 0;
}

.page-contact .region-list li {
  padding: 6px 12px;
  border: 1px solid var(--line);
  border-radius: 999px;
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  color: var(--paper-dim);
}

.page-contact .region-figure {
  margin: 0;
  border: var(--pc-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--ink-800);
}

.page-contact .region-figure img {
  display: block;
  width: 100%;
  object-fit: cover;
  filter: saturate(.55) brightness(.85);
}

.page-contact .region-cap {
  padding: 12px 16px;
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: .04em;
  color: var(--mist);
  border-top: 1px solid var(--line-soft);
  background: rgba(9, 26, 41, .85);
}

/* ---------- 延伸入口 ---------- */
.page-contact .next {
  padding-block: clamp(36px, 5vw, 68px);
  border-top: 1px solid var(--line-soft);
}

.page-contact .next-grid {
  display: grid;
  gap: 12px;
  margin-top: clamp(22px, 3vw, 30px);
}

.page-contact .next-link {
  display: block;
  padding: 18px 16px;
  border: var(--pc-border);
  border-radius: var(--radius-md);
  background: rgba(13, 34, 54, .5);
  text-decoration: none;
  transition: border-color .22s var(--ease), background .22s var(--ease), transform .22s var(--ease);
}

.page-contact .next-link:hover {
  border-color: var(--pc-amber-line);
  background: rgba(13, 34, 54, .88);
  transform: translateY(-2px);
}

.page-contact .next-link__label {
  display: block;
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: .14em;
  color: var(--amber);
}

.page-contact .next-link__text {
  display: block;
  margin-top: 10px;
  font-size: var(--fs-14);
  line-height: 1.75;
  color: var(--paper-dim);
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-contact .scope-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

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

@media (min-width: 900px) {
  .page-contact .hero-grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, .95fr);
    align-items: start;
  }

  .page-contact .contact-layout {
    grid-template-columns: minmax(0, .9fr) minmax(0, 1.1fr);
    align-items: center;
  }

  .page-contact .digest-grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    align-items: start;
  }

  .page-contact .region-inner {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    align-items: center;
  }
}

@media (min-width: 1040px) {
  .page-contact .scope-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-contact .next-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-contact .prep-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (max-width: 420px) {
  .page-contact .line-label {
    padding: 9px 12px;
  }

  .page-contact .contact-val {
    font-size: var(--fs-16);
  }

  .page-contact .flow-step {
    grid-template-columns: 30px minmax(0, 1fr);
    gap: 10px;
  }

  .page-contact .flow-no {
    width: 30px;
    height: 30px;
  }

  .page-contact .flow-step:not(:last-child)::after {
    left: 15px;
    top: 32px;
  }
}
<<<END>>>