.page-contact {
  --c-radius: 20px;
  --c-hair-dark: rgba(92, 242, 214, .16);
  --c-hair-light: rgba(7, 20, 38, .14);
  --c-chalk-70: rgba(249, 251, 247, .74);
  --c-ink-72: rgba(7, 20, 38, .74);
}

.page-contact .c-block {
  position: relative;
  padding: clamp(52px, 7vw, 108px) 0;
}

.page-contact .c-block--ink {
  background: var(--ink);
  color: var(--chalk);
}

.page-contact .c-block--paper {
  background: var(--paper);
  color: var(--ink);
}

.page-contact .c-block--paper2 {
  background: var(--paper-2);
  color: var(--ink);
}

.page-contact .c-section-head {
  max-width: 52ch;
  margin-bottom: clamp(28px, 4vw, 54px);
}

.page-contact .c-section-head .eyebrow {
  color: var(--pitch);
  margin-bottom: 14px;
}

.page-contact .c-block--ink .c-section-head .eyebrow {
  color: var(--cyan);
}

.page-contact .c-block--ink .h2,
.page-contact .c-block--ink .h3 {
  color: var(--chalk);
}

.page-contact .c-block--ink .lede {
  color: var(--c-chalk-70);
}

.page-contact .c-section-head .lede {
  margin-top: 16px;
}

/* ---------- 首屏 ---------- */

.page-contact .c-hero {
  padding-top: clamp(20px, 3vw, 40px);
  padding-bottom: clamp(48px, 7vw, 96px);
}

.page-contact .c-hero .breadcrumbs {
  margin-bottom: clamp(28px, 5vw, 60px);
}

.page-contact .c-hero__grid {
  display: grid;
  gap: clamp(30px, 5vw, 64px);
  align-items: center;
}

.page-contact .c-hero__text .eyebrow {
  color: var(--cyan);
}

.page-contact .c-hero__text .h1 {
  font-size: clamp(2.35rem, 6.2vw, 4.4rem);
  font-weight: 900;
  line-height: 1.05;
  letter-spacing: -.02em;
  margin: 14px 0 22px;
}

.page-contact .c-hero__text .lede {
  max-width: 36ch;
  font-size: clamp(1rem, 1.3vw, 1.125rem);
  color: var(--c-chalk-70);
}

.page-contact .c-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: clamp(24px, 3vw, 36px);
}

.page-contact .c-hero__visual {
  position: relative;
  margin: 0;
  border-radius: var(--c-radius);
  overflow: hidden;
  border: 1px solid var(--c-hair-dark);
  box-shadow: 0 34px 70px -46px rgba(0, 0, 0, .9);
}

.page-contact .c-hero__visual img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  max-width: 100%;
}

.page-contact .c-hero__tag {
  position: absolute;
  left: 14px;
  right: 14px;
  bottom: 14px;
  padding: 10px 14px;
  border-radius: 12px;
  background: rgba(7, 20, 38, .74);
  border: 1px solid var(--c-hair-dark);
  color: var(--chalk);
  font-size: 11px;
  letter-spacing: .1em;
  line-height: 1.5;
}

/* ---------- 通道选择 + 联系信息 ---------- */

.page-contact .c-route__grid {
  display: grid;
  gap: clamp(24px, 4vw, 48px);
}

.page-contact .c-route__cards {
  display: grid;
  gap: clamp(16px, 2.4vw, 24px);
}

.page-contact .c-pick {
  position: relative;
  background: var(--chalk);
  border: 1px solid var(--c-hair-light);
  border-radius: var(--c-radius);
  padding: clamp(20px, 2.6vw, 30px);
  box-shadow: 0 22px 44px -38px rgba(7, 20, 38, .85);
  overflow: hidden;
}

.page-contact .c-pick::before {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  left: 0;
  width: 4px;
  background: var(--pitch);
}

.page-contact .c-pick--lead::before {
  background: linear-gradient(180deg, var(--pitch), var(--cyan));
}

.page-contact .c-pick__idx {
  display: block;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .18em;
  color: var(--pitch);
  margin-bottom: 12px;
}

.page-contact .c-pick .h3 {
  margin: 0 0 10px;
  font-size: clamp(1.15rem, 1.8vw, 1.4rem);
}

.page-contact .c-pick p {
  margin: 0;
  font-size: 15.5px;
  line-height: 1.8;
  color: var(--c-ink-72);
}

.page-contact .c-pick__flag {
  display: inline-block;
  margin: 16px 0 0;
  padding: 5px 11px;
  border-radius: 999px;
  background: rgba(22, 122, 74, .12);
  color: var(--pitch-deep);
  font-size: 11px;
  letter-spacing: .14em;
}

.page-contact .c-desk {
  background: var(--ink);
  color: var(--chalk);
  border: 1px solid var(--c-hair-dark);
  border-radius: var(--c-radius);
  padding: clamp(22px, 2.8vw, 32px);
}

.page-contact .c-desk__kicker {
  font-size: 11px;
  letter-spacing: .2em;
  color: var(--cyan);
  margin: 0 0 8px;
}

.page-contact .c-desk .h3 {
  margin: 0 0 6px;
  color: var(--chalk);
}

.page-contact .c-desk__rows {
  margin-top: 12px;
}

.page-contact .c-desk__row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: 2px 14px;
  padding: 14px 0;
  border-top: 1px solid var(--c-hair-dark);
}

.page-contact .c-desk__label {
  grid-column: 1;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .16em;
  color: var(--cyan);
}

.page-contact .c-desk__value {
  grid-column: 1;
  font-family: var(--font-mono);
  font-size: 13.5px;
  line-height: 1.6;
  color: var(--chalk);
  word-break: break-word;
}

.page-contact .c-desk__copy {
  grid-column: 2;
  grid-row: 1 / span 2;
  padding: 8px 12px;
  border-radius: 9px;
  border: 1px solid rgba(92, 242, 214, .45);
  background: transparent;
  color: var(--cyan);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .12em;
  cursor: pointer;
  transition: background .2s var(--ease), color .2s var(--ease);
}

.page-contact .c-desk__copy:hover,
.page-contact .c-desk__copy:focus-visible {
  background: var(--cyan);
  color: var(--ink);
  outline: none;
}

.page-contact .c-desk__hours {
  margin-top: 20px;
  padding-top: 18px;
  border-top: 1px solid var(--c-hair-dark);
}

.page-contact .c-desk__hours-line {
  margin: 0 0 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--orange);
  line-height: 1.6;
}

.page-contact .c-desk__hours-note {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--c-chalk-70);
}

.page-contact .c-desk__icp {
  margin: 20px 0 0;
  font-size: 11px;
  letter-spacing: .14em;
  color: rgba(249, 251, 247, .45);
}

/* ---------- 流程 ---------- */

.page-contact .c-flow__body {
  display: grid;
  gap: clamp(28px, 4vw, 52px);
  align-items: center;
}

.page-contact .c-steps {
  position: relative;
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: clamp(18px, 2.6vw, 26px);
}

.page-contact .c-steps__line {
  display: none;
}

.page-contact .c-step {
  position: relative;
  z-index: 1;
  padding: clamp(18px, 2.4vw, 26px);
  border: 1px solid var(--c-hair-dark);
  border-radius: var(--c-radius);
  background: linear-gradient(158deg, rgba(22, 122, 74, .24), rgba(7, 20, 38, .08));
}

.page-contact .c-step__num {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .18em;
  color: var(--cyan);
  margin-bottom: 12px;
}

.page-contact .c-step .h3 {
  margin: 0 0 8px;
  font-size: clamp(1.05rem, 1.6vw, 1.25rem);
  color: var(--chalk);
}

.page-contact .c-step p {
  margin: 0;
  font-size: 15px;
  line-height: 1.78;
  color: var(--c-chalk-70);
}

.page-contact .c-flow__visual {
  margin: 0;
  border-radius: var(--c-radius);
  overflow: hidden;
  border: 1px solid var(--c-hair-dark);
}

.page-contact .c-flow__visual img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  max-width: 100%;
}

.page-contact .c-flow__visual .image-frame__caption {
  padding: 14px 18px;
  font-size: 12.5px;
  line-height: 1.6;
  color: var(--c-chalk-70);
  background: rgba(7, 20, 38, .82);
  border-top: 1px solid var(--c-hair-dark);
}

/* ---------- 服务节奏 ---------- */

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

.page-contact .c-rhythm__item {
  display: grid;
  gap: 6px;
  padding: clamp(16px, 2.6vw, 24px) 0;
  border-bottom: 1px solid var(--c-hair-light);
}

.page-contact .c-rhythm__num {
  font-family: var(--font-mono);
  font-size: clamp(1.35rem, 2.8vw, 2rem);
  font-weight: 700;
  letter-spacing: -.01em;
  color: var(--pitch-deep);
}

.page-contact .c-rhythm__label {
  font-size: 15.5px;
  line-height: 1.8;
  color: var(--c-ink-72);
}

/* ---------- 常见场景 ---------- */

.page-contact .c-need__grid {
  display: grid;
  gap: 16px;
}

.page-contact .c-need__item {
  background: var(--chalk);
  border: 1px solid var(--c-hair-light);
  border-radius: 16px;
  overflow: hidden;
}

.page-contact .c-need__item summary {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 18px 20px;
  cursor: pointer;
  list-style: none;
  font-weight: 600;
  font-size: 16px;
  color: var(--ink);
}

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

.page-contact .c-need__item summary .mono {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .16em;
  color: var(--pitch);
}

.page-contact .c-need__item summary::after {
  content: "+";
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 18px;
  line-height: 1;
  color: var(--pitch);
}

.page-contact .c-need__item[open] summary::after {
  content: "–";
}

.page-contact .c-need__body {
  padding: 0 20px 20px;
  border-top: 1px dashed rgba(7, 20, 38, .14);
}

.page-contact .c-need__body p {
  margin: 16px 0 0;
  font-size: 15px;
  line-height: 1.82;
  color: var(--c-ink-72);
}

/* ---------- 表单 ---------- */

.page-contact .c-compose__grid {
  display: grid;
  gap: clamp(28px, 4vw, 52px);
  align-items: start;
}

.page-contact .c-compose__intro .eyebrow {
  color: var(--cyan);
  margin-bottom: 14px;
}

.page-contact .c-compose__intro .h2 {
  margin-bottom: 18px;
}

.page-contact .c-compose__aside {
  margin-top: 20px;
  font-size: 14px;
  line-height: 1.85;
  color: var(--c-chalk-70);
}

.page-contact .c-compose__aside .link-underline {
  color: var(--cyan);
}

.page-contact .c-form {
  display: grid;
  gap: clamp(16px, 2vw, 20px);
  padding: clamp(20px, 3vw, 30px);
  border: 1px solid var(--c-hair-dark);
  border-radius: var(--c-radius);
  background: rgba(249, 251, 247, .04);
}

.page-contact .c-field {
  display: grid;
  gap: 8px;
}

.page-contact .c-field__label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .16em;
  color: var(--cyan);
}

.page-contact .c-field__control {
  width: 100%;
  max-width: 100%;
  padding: 12px 14px;
  border-radius: 12px;
  border: 1px solid rgba(249, 251, 247, .22);
  background: rgba(7, 20, 38, .55);
  color: var(--chalk);
  font-family: var(--font-body);
  font-size: 15px;
  line-height: 1.6;
  transition: border-color .18s var(--ease), box-shadow .18s var(--ease);
}

.page-contact .c-field__control::placeholder {
  color: rgba(249, 251, 247, .42);
}

.page-contact .c-field__control:focus {
  outline: none;
  border-color: var(--cyan);
  box-shadow: 0 0 0 3px rgba(92, 242, 214, .2);
}

.page-contact .c-field__control:not(:placeholder-shown):invalid {
  border-color: var(--orange);
}

.page-contact .c-field__control option {
  background: var(--ink);
  color: var(--chalk);
}

.page-contact textarea.c-field__control {
  min-height: 120px;
  resize: vertical;
}

.page-contact .c-field__hint {
  font-size: 12px;
  line-height: 1.6;
  color: rgba(249, 251, 247, .52);
}

.page-contact .c-form__foot {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px;
  padding-top: 6px;
}

.page-contact .c-form__note {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .04em;
  color: var(--c-chalk-70);
  word-break: break-word;
}

/* ---------- 响应式 ---------- */

@media (min-width: 760px) {
  .page-contact .c-route__cards {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-contact .c-pick--lead {
    grid-column: 1 / -1;
  }

  .page-contact .c-pick:nth-child(3) {
    margin-top: 24px;
  }

  .page-contact .c-steps {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    padding-top: 40px;
  }

  .page-contact .c-steps__line {
    display: block;
    position: absolute;
    top: -6px;
    left: 0;
    width: 100%;
    height: 52px;
    pointer-events: none;
    z-index: 0;
  }

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

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

  .page-contact .c-compose__grid {
    grid-template-columns: minmax(0, .85fr) minmax(0, 1.15fr);
  }
}

@media (min-width: 960px) {
  .page-contact .c-route__grid {
    grid-template-columns: minmax(0, 1.28fr) minmax(0, .72fr);
    align-items: start;
  }

  .page-contact .c-desk {
    position: sticky;
    top: 32px;
  }

  .page-contact .c-flow__body {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, .85fr);
  }
}

@media (min-width: 820px) {
  .page-contact .c-rhythm__item {
    grid-template-columns: minmax(170px, 240px) minmax(0, 1fr);
    align-items: baseline;
    gap: 32px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .c-desk__copy,
  .page-contact .c-field__control {
    transition: none;
  }
}
<<<END>>>