.page-contact {
  padding-top: clamp(16px, 2.6vw, 32px);
  padding-bottom: clamp(48px, 6vw, 96px);
}

.page-contact .breadcrumb {
  margin-bottom: clamp(18px, 2.8vw, 30px);
}

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(24px, 3.6vw, 48px);
  align-items: start;
}

.page-contact .contact-hero__text {
  display: flex;
  flex-direction: column;
  gap: clamp(14px, 1.9vw, 22px);
  min-width: 0;
}

.page-contact .contact-hero__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(32px, 5.6vw, 62px);
  line-height: 1.06;
  letter-spacing: 0.005em;
  color: var(--text);
}

.page-contact .contact-hero__lede {
  margin: 0;
  max-width: 46ch;
  font-size: clamp(15px, 1.6vw, 18px);
  line-height: 1.78;
  color: var(--muted);
}

.page-contact .contact-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 4px;
}

.page-contact .contact-facts {
  list-style: none;
  margin: clamp(6px, 1.2vw, 14px) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.page-contact .contact-facts li {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 4px 10px;
  padding: 12px 0;
  border-bottom: 1px solid var(--line-soft);
  min-width: 0;
}

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

.page-contact .contact-facts strong {
  font-family: var(--font-mono);
  font-size: 19px;
  font-weight: 500;
  letter-spacing: 0.02em;
  color: var(--cyan);
}

.page-contact .contact-facts span {
  font-size: 13px;
  line-height: 1.6;
  color: var(--muted);
}

/* ---------- 联系卡片 ---------- */
.page-contact .contact-card {
  display: flex;
  flex-direction: column;
  min-width: 0;
  background: var(--panel);
  border: 1px solid var(--line);
}

.page-contact .contact-card__media {
  position: relative;
  margin: 0;
  line-height: 0;
  overflow: hidden;
  border-bottom: 1px solid var(--line);
}

.page-contact .contact-card__media::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(34, 230, 212, 0.12), rgba(5, 7, 12, 0.62));
  pointer-events: none;
}

.page-contact .contact-card__media img {
  display: block;
  width: 100%;
  height: clamp(140px, 22vw, 190px);
  object-fit: cover;
  filter: saturate(0.55) contrast(1.06);
}

.page-contact .contact-card__body {
  display: flex;
  flex-direction: column;
  gap: 14px;
  padding: clamp(18px, 2.4vw, 26px);
}

.page-contact .contact-card__label {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--orange);
}

.page-contact .contact-row {
  display: flex;
  flex-direction: column;
  gap: 5px;
  padding-bottom: 13px;
  border-bottom: 1px solid var(--line-soft);
  min-width: 0;
}

.page-contact .contact-row:last-of-type {
  border-bottom: 0;
  padding-bottom: 0;
}

.page-contact .contact-row__k {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--muted);
}

.page-contact .contact-row__v {
  font-family: var(--font-mono);
  font-size: clamp(14px, 1.7vw, 17px);
  line-height: 1.5;
  letter-spacing: 0.01em;
  color: var(--cyan);
  word-break: break-all;
}

.page-contact .contact-row__v--plain {
  font-family: var(--font-body);
  font-size: clamp(14px, 1.6vw, 16px);
  letter-spacing: 0;
  color: var(--text);
  word-break: normal;
}

.page-contact .contact-row__note {
  font-size: 13px;
  line-height: 1.68;
  color: var(--muted);
}

.page-contact .contact-card__foot {
  margin: 0;
  padding-top: 4px;
  font-size: 13px;
  line-height: 1.72;
  color: var(--muted);
}

.page-contact .contact-card__foot a {
  color: var(--cyan-soft);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- 通用章节 ---------- */
.page-contact .section {
  margin-top: clamp(44px, 6.4vw, 92px);
}

.page-contact .section__head {
  display: grid;
  gap: 10px;
  max-width: 68ch;
  margin-bottom: clamp(20px, 3vw, 34px);
}

.page-contact .section__head h2 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(23px, 3.3vw, 38px);
  line-height: 1.18;
  color: var(--text);
}

.page-contact .section__head p {
  margin: 0;
  font-size: clamp(14px, 1.5vw, 16.5px);
  line-height: 1.78;
  color: var(--muted);
}

.page-contact .section__head a {
  color: var(--cyan-soft);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- 四类事项 ---------- */
.page-contact .channel-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  background: var(--line);
}

.page-contact .channel-card {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: clamp(18px, 2.6vw, 28px);
  background: var(--panel);
  min-width: 0;
  transition: background var(--ease);
}

.page-contact .channel-card:hover {
  background: #0f1826;
}

.page-contact .channel-card__title {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(16px, 1.9vw, 20px);
  font-weight: 700;
  color: var(--text);
}

.page-contact .channel-card__title::before {
  content: "";
  flex: 0 0 auto;
  width: 8px;
  height: 8px;
  background: var(--cyan);
}

.page-contact .channel-card:nth-child(1) .channel-card__title::before {
  background: var(--orange);
}

.page-contact .channel-card:nth-child(3) .channel-card__title::before {
  background: var(--violet);
}

.page-contact .channel-card:nth-child(4) .channel-card__title::before {
  background: var(--cyan-soft);
}

.page-contact .channel-card > p {
  margin: 0;
  font-size: 14px;
  line-height: 1.76;
  color: var(--muted);
}

.page-contact .channel-card__needs {
  list-style: none;
  margin: 0;
  padding: 12px 0 0;
  display: grid;
  gap: 8px;
  border-top: 1px solid var(--line-soft);
  margin-top: auto;
}

.page-contact .channel-card__needs li {
  position: relative;
  padding-left: 14px;
  font-size: 13px;
  line-height: 1.6;
  color: var(--muted);
}

.page-contact .channel-card__needs li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.72em;
  width: 6px;
  height: 1px;
  background: var(--cyan);
  opacity: 0.75;
}

/* ---------- 四步流程 ---------- */
.page-contact .flow-steps {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  background: var(--line);
}

.page-contact .flow-step {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: clamp(16px, 2.4vw, 26px);
  background: var(--panel);
  min-width: 0;
  transition: background var(--ease);
  outline: none;
}

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

.page-contact .flow-step:hover,
.page-contact .flow-step:focus-visible {
  background: #0f1826;
}

.page-contact .flow-step:focus-visible {
  box-shadow: inset 0 0 0 1px var(--cyan-soft);
}

.page-contact .flow-step__idx {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--muted);
}

.page-contact .flow-step h3 {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(16px, 1.8vw, 18px);
  font-weight: 700;
  color: var(--text);
}

.page-contact .flow-step p {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.72;
  color: var(--muted);
}

.page-contact .flow-figure {
  margin: clamp(18px, 2.8vw, 30px) 0 0;
  border: 1px solid var(--line);
  background: var(--panel);
  overflow: hidden;
}

.page-contact .flow-figure img {
  display: block;
  width: 100%;
  height: auto;
  filter: saturate(0.72) contrast(1.04);
}

.page-contact .flow-figure figcaption {
  padding: 10px 14px;
  border-top: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.12em;
  color: var(--muted);
}

/* ---------- 时效 ---------- */
.page-contact .timing {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  background: var(--line);
}

.page-contact .timing__item {
  display: flex;
  flex-direction: column;
  gap: 7px;
  padding: clamp(18px, 2.5vw, 26px);
  background: var(--panel);
  min-width: 0;
}

.page-contact .timing__num {
  font-family: var(--font-mono);
  font-size: clamp(26px, 3.4vw, 36px);
  line-height: 1;
  letter-spacing: -0.01em;
  color: var(--orange);
}

.page-contact .timing__item:nth-child(2) .timing__num {
  color: var(--violet-soft);
}

.page-contact .timing__item:nth-child(3) .timing__num {
  color: var(--cyan);
}

.page-contact .timing__num small {
  margin-left: 6px;
  font-size: 0.36em;
  letter-spacing: 0.16em;
  color: var(--muted);
}

.page-contact .timing__item h3 {
  margin: 0;
  font-family: var(--font-display);
  font-size: 15.5px;
  font-weight: 700;
  color: var(--text);
}

.page-contact .timing__item p {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.72;
  color: var(--muted);
}

/* ---------- 纠错清单 ---------- */
.page-contact .checklist {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  background: var(--line);
}

.page-contact .checklist > li {
  background: var(--panel);
  min-width: 0;
}

.page-contact .checklist__item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 15px 16px;
  cursor: pointer;
}

.page-contact .checklist__item input {
  appearance: none;
  -webkit-appearance: none;
  flex: 0 0 auto;
  width: 16px;
  height: 16px;
  margin: 3px 0 0;
  border: 1px solid var(--line);
  background: transparent;
  cursor: pointer;
  transition: border-color var(--ease), background var(--ease), box-shadow var(--ease);
}

.page-contact .checklist__item input:hover {
  border-color: var(--cyan-soft);
}

.page-contact .checklist__item input:checked {
  border-color: var(--cyan);
  background: var(--cyan);
  box-shadow: inset 0 0 0 4px var(--panel);
}

.page-contact .checklist__item input:focus-visible {
  outline: 1px solid var(--cyan-soft);
  outline-offset: 2px;
}

.page-contact .checklist__body {
  display: block;
  min-width: 0;
}

.page-contact .checklist__t {
  display: block;
  font-family: var(--font-display);
  font-size: 14.5px;
  font-weight: 700;
  color: var(--text);
  transition: color var(--ease);
}

.page-contact .checklist__item input:checked ~ .checklist__body .checklist__t {
  color: var(--cyan);
}

.page-contact .checklist__d {
  display: block;
  margin-top: 3px;
  font-size: 13px;
  line-height: 1.65;
  color: var(--muted);
}

.page-contact .proof {
  margin-top: clamp(16px, 2.4vw, 24px);
  border: 1px solid var(--line);
  background: var(--panel);
}

.page-contact .proof summary {
  list-style: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 14px 16px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--cyan);
  transition: color var(--ease);
}

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

.page-contact .proof summary::after {
  content: "+";
  font-size: 16px;
  line-height: 1;
  color: var(--muted);
}

.page-contact .proof[open] summary::after {
  content: "–";
  color: var(--cyan);
}

.page-contact .proof summary:hover {
  color: var(--cyan-soft);
}

.page-contact .proof__list {
  margin: 0;
  padding: 14px 16px 18px;
  border-top: 1px solid var(--line-soft);
  display: grid;
  gap: 10px;
}

.page-contact .proof__list > div {
  display: grid;
  grid-template-columns: 78px minmax(0, 1fr);
  gap: 10px;
  align-items: baseline;
}

.page-contact .proof__list dt {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--muted);
}

.page-contact .proof__list dd {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 1.7;
  color: var(--text);
  word-break: break-word;
}

/* ---------- 收束横幅 ---------- */
.page-contact .contact-cta {
  margin-top: clamp(48px, 7vw, 96px);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background:
    linear-gradient(135deg, rgba(34, 230, 212, 0.10), rgba(123, 92, 255, 0.10) 55%, rgba(255, 106, 44, 0.09));
}

.page-contact .contact-cta__inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(18px, 2.6vw, 26px);
  padding-top: clamp(28px, 4.4vw, 56px);
  padding-bottom: clamp(28px, 4.4vw, 56px);
}

.page-contact .contact-cta__copy {
  display: grid;
  gap: 10px;
  min-width: 0;
}

.page-contact .contact-cta__copy h2 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(22px, 3.1vw, 34px);
  line-height: 1.2;
  color: var(--text);
}

.page-contact .contact-cta__copy p {
  margin: 0;
  max-width: 58ch;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--muted);
}

.page-contact .contact-cta__links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: flex-start;
}

/* ---------- 响应式 ---------- */
@media (min-width: 700px) {
  .page-contact .checklist {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

  .page-contact .contact-facts li {
    border-bottom: 0;
    border-left: 1px solid var(--line);
    padding: 12px 18px;
  }

  .page-contact .contact-facts li:first-child {
    border-left: 0;
    padding-left: 0;
  }
}

@media (min-width: 780px) {
  .page-contact .channel-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

@media (min-width: 860px) {
  .page-contact .flow-steps {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-contact .flow-step::after {
    content: "";
    position: absolute;
    top: 26px;
    right: 0;
    width: 1px;
    height: 18px;
    background: var(--cyan);
    opacity: 0.45;
  }

  .page-contact .flow-step:last-child::after {
    display: none;
  }
}

@media (min-width: 960px) {
  .page-contact .contact-hero {
    grid-template-columns: minmax(0, 1.12fr) minmax(0, 0.88fr);
    gap: clamp(32px, 4.2vw, 64px);
  }

  .page-contact .contact-card {
    position: sticky;
    top: calc(var(--topbar-h) + 20px);
  }

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

  .page-contact .contact-cta__links {
    padding-bottom: 4px;
  }
}

@media (min-width: 1180px) {
  .page-contact .section__head {
    max-width: 76ch;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .channel-card,
  .page-contact .flow-step,
  .page-contact .checklist__item input,
  .page-contact .checklist__t,
  .page-contact .proof summary {
    transition: none;
  }
}
<<<END>>>