.page-contact {
  background: var(--ink);
  color: var(--paper);
  font-family: var(--font-body);
  overflow-x: hidden;
}

.page-contact h2 {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(26px, 4.2vw, 42px);
  line-height: 1.14;
  letter-spacing: -.005em;
  margin: 0 0 12px;
}

.page-contact p {
  margin: 0;
}

.page-contact .breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
  padding-block: clamp(14px, 2vw, 22px) 0;
  font-family: var(--font-data);
  font-size: 11px;
  letter-spacing: .1em;
  text-transform: uppercase;
}

.page-contact .breadcrumb__item {
  color: rgba(244, 235, 221, .55);
  text-decoration: none;
}

.page-contact .breadcrumb__item + .breadcrumb__item::before {
  content: "/";
  margin-right: 6px;
  color: rgba(244, 235, 221, .28);
}

.page-contact .breadcrumb__item[aria-current="page"] {
  color: var(--cyan);
}

.page-contact .inline-link {
  color: var(--cyan);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-thickness: 1px;
}

.page-contact .inline-link:hover {
  color: var(--volt);
}

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  padding: clamp(20px, 3vw, 38px) 0 clamp(46px, 7vw, 92px);
}

.page-contact .contact-hero__bg {
  position: absolute;
  inset: 0;
  z-index: -1;
  overflow: hidden;
}

.page-contact .contact-hero__bg img {
  display: block;
  width: 100%;
  height: 100%;
  max-width: 100%;
  object-fit: cover;
  opacity: .5;
}

.page-contact .contact-hero__bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(120% 95% at 10% 0%, rgba(13, 42, 71, .92), transparent 62%),
    linear-gradient(100deg, rgba(7, 26, 47, .97) 0%, rgba(7, 26, 47, .88) 52%, rgba(4, 16, 31, .96) 100%);
}

.page-contact .contact-hero__inner {
  position: relative;
  display: grid;
  gap: clamp(14px, 2.4vw, 22px);
}

.page-contact .contact-hero__title {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: clamp(31px, 6vw, 62px);
  line-height: 1.07;
  letter-spacing: -.012em;
  margin: 0;
  max-width: 19ch;
}

.page-contact .contact-hero__lede {
  max-width: 60ch;
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.8;
  color: rgba(244, 235, 221, .78);
}

.page-contact .contact-hero__aux {
  max-width: 68ch;
  font-size: 13.5px;
  line-height: 1.8;
  color: rgba(244, 235, 221, .58);
}

.page-contact .contact-hero__split {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(18px, 3vw, 32px);
  align-items: start;
  margin-top: clamp(8px, 1.6vw, 18px);
}

.page-contact .contact-channels {
  display: grid;
  gap: clamp(16px, 2vw, 26px);
}

.page-contact .channel {
  border-top: 1px solid var(--line-soft);
  padding-top: 14px;
}

.page-contact .channel__label {
  font-family: var(--font-data);
  font-size: 11px;
  letter-spacing: .18em;
  color: var(--cyan);
  margin-bottom: 8px;
}

.page-contact .channel__value {
  overflow-wrap: anywhere;
}

.page-contact .channel__value--mail {
  font-family: var(--font-data);
  font-size: clamp(16px, 2.5vw, 27px);
  line-height: 1.35;
  color: var(--paper);
}

.page-contact .channel__value--tel {
  font-family: var(--font-display);
  font-size: clamp(40px, 9vw, 78px);
  line-height: .98;
  letter-spacing: .01em;
  color: var(--cyan);
  font-variant-numeric: tabular-nums;
}

.page-contact .channel__meta {
  margin-top: 10px;
  max-width: 46ch;
  font-size: 13.5px;
  line-height: 1.75;
  color: rgba(244, 235, 221, .62);
}

/* ---------- 反馈清单卡 ---------- */
.page-contact .feedback-card {
  position: relative;
  background: var(--paper);
  color: var(--graphite);
  padding: clamp(22px, 3vw, 32px) clamp(18px, 2.6vw, 30px) clamp(18px, 2.4vw, 26px);
  border-radius: 2px;
  box-shadow: 0 28px 70px rgba(4, 16, 31, .5);
  overflow: hidden;
}

.page-contact .feedback-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--shot), var(--heat) 42%, var(--cyan));
}

.page-contact .feedback-card__kicker {
  font-family: var(--font-data);
  font-size: 11px;
  letter-spacing: .18em;
  color: var(--heat);
  margin-bottom: 8px;
}

.page-contact .feedback-card__title {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(21px, 2.6vw, 27px);
  line-height: 1.25;
  color: var(--ink);
  margin: 0 0 12px;
}

.page-contact .checklist {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-contact .checklist__item {
  border-bottom: 1px dashed rgba(18, 20, 23, .16);
}

.page-contact .checklist__item:last-child {
  border-bottom: 0;
}

.page-contact .checklist__label {
  display: grid;
  grid-template-columns: 20px 1fr;
  gap: 10px;
  align-items: start;
  padding: 11px 2px;
  cursor: pointer;
}

.page-contact .checklist__box {
  appearance: none;
  -webkit-appearance: none;
  width: 18px;
  height: 18px;
  margin: 2px 0 0;
  display: grid;
  place-content: center;
  border: 1.5px solid rgba(18, 20, 23, .38);
  border-radius: 2px;
  background: transparent;
  cursor: pointer;
  transition: background .16s var(--ease), border-color .16s var(--ease);
}

.page-contact .checklist__box::after {
  content: "";
  width: 9px;
  height: 5px;
  margin-top: -2px;
  border-left: 2px solid var(--paper);
  border-bottom: 2px solid var(--paper);
  transform: rotate(-45deg) scale(0);
  transition: transform .16s var(--ease);
}

.page-contact .checklist__box:checked {
  background: var(--ink);
  border-color: var(--ink);
}

.page-contact .checklist__box:checked::after {
  transform: rotate(-45deg) scale(1);
}

.page-contact .checklist__box:focus-visible {
  outline: 2px solid var(--ink-2);
  outline-offset: 2px;
}

.page-contact .checklist__text strong {
  display: block;
  font-size: 14.5px;
  font-weight: 600;
  line-height: 1.5;
  color: var(--ink);
}

.page-contact .checklist__text small {
  display: block;
  margin-top: 2px;
  font-size: 12.5px;
  line-height: 1.62;
  color: rgba(18, 20, 23, .62);
}

.page-contact .feedback-card__note {
  margin-top: 14px;
  padding-top: 10px;
  border-top: 1px solid rgba(18, 20, 23, .12);
  font-size: 12.5px;
  line-height: 1.7;
  color: rgba(18, 20, 23, .55);
}

/* ---------- 响应流程 ---------- */
.page-contact .contact-flow {
  background: var(--ink-2);
}

.page-contact .contact-flow__inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(22px, 4vw, 52px);
  align-items: start;
}

.page-contact .contact-flow__media .media-frame {
  position: relative;
  overflow: hidden;
  border-radius: 2px;
}

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

.page-contact .contact-flow__media .media-frame__caption {
  margin-top: 10px;
  font-family: var(--font-data);
  font-size: 11.5px;
  line-height: 1.6;
  letter-spacing: .04em;
  color: rgba(244, 235, 221, .5);
}

.page-contact .flow {
  list-style: none;
  margin: clamp(20px, 3vw, 30px) 0 0;
  padding: 0;
}

.page-contact .flow__step {
  position: relative;
  padding-left: 44px;
  padding-bottom: 18px;
}

.page-contact .flow__step::before {
  content: "";
  position: absolute;
  left: 13px;
  top: 32px;
  bottom: 0;
  width: 1px;
  background: linear-gradient(180deg, rgba(43, 228, 197, .7), rgba(43, 228, 197, .06));
}

.page-contact .flow__step:last-child::before {
  display: none;
}

.page-contact .flow__num {
  position: absolute;
  left: 0;
  top: 3px;
  width: 28px;
  height: 28px;
  display: grid;
  place-content: center;
  border: 1px solid rgba(43, 228, 197, .5);
  border-radius: 50%;
  background: rgba(7, 26, 47, .92);
  font-family: var(--font-data);
  font-size: 11px;
  color: var(--cyan);
  font-variant-numeric: tabular-nums;
}

.page-contact .flow__summary {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 4px 0;
  cursor: pointer;
  list-style: none;
}

.page-contact .flow__summary::-webkit-details-marker {
  display: none;
}

.page-contact .flow__summary::after {
  content: "+";
  margin-left: auto;
  font-family: var(--font-data);
  font-size: 15px;
  color: var(--cyan);
  transition: transform .2s var(--ease);
}

.page-contact .flow__detail[open] .flow__summary::after {
  transform: rotate(45deg);
}

.page-contact .flow__title {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(18px, 2.2vw, 22px);
  color: var(--paper);
}

.page-contact .flow__text {
  margin-top: 8px;
  max-width: 54ch;
  font-size: 14.5px;
  line-height: 1.8;
  color: rgba(244, 235, 221, .72);
}

/* ---------- 服务范围 ---------- */
.page-contact .contact-scope {
  background: var(--ink);
}

.page-contact .contact-scope__head {
  max-width: 62ch;
}

.page-contact .contact-scope__lede {
  font-size: clamp(14.5px, 1.6vw, 16px);
  line-height: 1.8;
  color: rgba(244, 235, 221, .7);
}

.page-contact .contact-scope__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(20px, 3vw, 40px);
  margin-top: clamp(20px, 3vw, 34px);
}

.page-contact .scope-map {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(84px, 1fr));
  gap: 8px;
  align-content: start;
}

.page-contact .scope-map__node {
  padding: 12px 6px;
  text-align: center;
  font-family: var(--font-data);
  font-size: 13px;
  letter-spacing: .04em;
  color: rgba(244, 235, 221, .78);
  border: 1px solid var(--line-soft);
  border-radius: 3px;
  background: rgba(13, 42, 71, .5);
  transition: color .18s var(--ease), border-color .18s var(--ease), transform .18s var(--ease);
}

.page-contact .scope-map__node:hover {
  color: var(--cyan);
  border-color: var(--cyan);
  transform: translateY(-2px);
}

.page-contact .scope-map__node--key {
  color: var(--ink);
  background: var(--cyan);
  border-color: var(--cyan);
  font-weight: 700;
}

.page-contact .scope-map__node--key:hover {
  color: var(--ink);
  transform: translateY(-2px);
}

.page-contact .scope-notes {
  display: grid;
  gap: 10px;
  align-content: start;
}

.page-contact .scope-note {
  padding: 14px 16px;
  border-left: 2px solid var(--cyan);
  background: rgba(13, 42, 71, .55);
}

.page-contact .scope-note__num {
  font-family: var(--font-data);
  font-size: clamp(20px, 2.4vw, 24px);
  font-weight: 700;
  color: var(--cyan);
  font-variant-numeric: tabular-nums;
}

.page-contact .scope-note__text {
  margin-top: 4px;
  font-size: 13.5px;
  line-height: 1.7;
  color: rgba(244, 235, 221, .7);
}

/* ---------- 合作咨询 ---------- */
.page-contact .contact-coop {
  background: var(--paper);
  color: var(--graphite);
}

.page-contact .contact-coop .eyebrow {
  color: var(--heat);
}

.page-contact .contact-coop__inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(20px, 3vw, 46px);
  align-items: start;
}

.page-contact .contact-coop__intro h2 {
  color: var(--ink);
}

.page-contact .contact-coop__intro p {
  max-width: 52ch;
  font-size: 14.5px;
  line-height: 1.82;
  color: rgba(18, 20, 23, .72);
}

.page-contact .contact-coop__intro p + p {
  margin-top: 12px;
}

.page-contact .coop-mail {
  font-family: var(--font-data);
  color: var(--ink);
  overflow-wrap: anywhere;
  border-bottom: 2px solid var(--shot);
  padding-bottom: 1px;
}

.page-contact .coop-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-contact .coop-item {
  display: grid;
  gap: 5px;
  padding: 16px 0;
  border-top: 1px solid rgba(18, 20, 23, .14);
}

.page-contact .coop-item:last-child {
  border-bottom: 1px solid rgba(18, 20, 23, .14);
}

.page-contact .coop-item h3 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(17px, 2vw, 21px);
  color: var(--ink);
}

.page-contact .coop-item p {
  font-size: 14px;
  line-height: 1.72;
  color: rgba(18, 20, 23, .68);
}

/* ---------- 到访信息 ---------- */
.page-contact .contact-visit {
  background: var(--night);
}

.page-contact .visit-card {
  display: grid;
  gap: clamp(16px, 2.4vw, 26px);
  padding: clamp(22px, 3.4vw, 42px);
  border: 1px solid var(--line-soft);
  border-radius: 2px;
  background: linear-gradient(125deg, rgba(13, 42, 71, .78), rgba(4, 16, 31, .9));
}

.page-contact .visit-card__head h2 {
  margin-bottom: 0;
}

.page-contact .visit-card__body {
  display: grid;
  gap: 12px;
}

.page-contact .visit-card__addr {
  font-family: var(--font-display);
  font-size: clamp(19px, 2.6vw, 29px);
  line-height: 1.4;
  letter-spacing: .01em;
  color: var(--cyan);
  max-width: 30ch;
}

.page-contact .visit-card__body p {
  max-width: 62ch;
  font-size: 14.5px;
  line-height: 1.82;
  color: rgba(244, 235, 221, .72);
}

.page-contact .visit-card__region {
  font-family: var(--font-data);
  font-size: 12px;
  letter-spacing: .12em;
  color: rgba(244, 235, 221, .5);
}

/* ---------- 断点 ---------- */
@media (min-width: 760px) {
  .page-contact .contact-hero__split {
    grid-template-columns: 1.2fr .95fr;
  }

  .page-contact .contact-scope__grid {
    grid-template-columns: 1.45fr .85fr;
  }
}

@media (min-width: 960px) {
  .page-contact .contact-flow__inner {
    grid-template-columns: .82fr 1.18fr;
  }

  .page-contact .contact-coop__inner {
    grid-template-columns: 1.05fr .95fr;
    gap: clamp(32px, 5vw, 72px);
  }

  .page-contact .contact-hero__split {
    grid-template-columns: 1.25fr .95fr;
    gap: clamp(26px, 3.4vw, 56px);
  }
}

@media (max-width: 599px) {
  .page-contact .contact-hero__title {
    max-width: none;
  }

  .page-contact .contact-channels {
    gap: 14px;
  }

  .page-contact .scope-map {
    grid-template-columns: repeat(auto-fill, minmax(74px, 1fr));
  }

  .page-contact .scope-map__node {
    font-size: 12px;
    padding: 10px 4px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .scope-map__node,
  .page-contact .checklist__box,
  .page-contact .checklist__box::after,
  .page-contact .flow__summary::after {
    transition: none;
  }
}
<<<END>>>