.page-contact {
  --cx-gap: clamp(16px, 2.6vw, 30px);
  --cx-pad: clamp(18px, 2.8vw, 34px);
  position: relative;
  overflow-x: clip;
  padding-block: clamp(22px, 3.6vw, 42px) clamp(56px, 7vw, 96px);
  color: var(--sand);
}

.page-contact::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: min(640px, 72vh);
  background-image:
    repeating-linear-gradient(90deg, rgba(111, 140, 163, 0.09) 0 1px, transparent 1px 92px),
    repeating-linear-gradient(0deg, rgba(111, 140, 163, 0.07) 0 1px, transparent 1px 92px);
  -webkit-mask-image: linear-gradient(180deg, #000 8%, transparent 94%);
  mask-image: linear-gradient(180deg, #000 8%, transparent 94%);
  pointer-events: none;
  z-index: 0;
}

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

/* ---------- 首屏 ---------- */
.page-contact .cx-hero {
  display: grid;
  gap: clamp(20px, 3vw, 36px);
  align-items: end;
  padding-bottom: clamp(24px, 3.4vw, 44px);
  border-bottom: 1px solid var(--line);
}

.page-contact .cx-hero__lead h1 {
  margin: 12px 0 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(2rem, 1.35rem + 3.1vw, 3.5rem);
  line-height: 1.07;
  letter-spacing: -0.01em;
  color: var(--sand);
}

.page-contact .cx-hero__intro {
  margin: 16px 0 0;
  max-width: 46ch;
  font-size: var(--step-0);
  line-height: 1.78;
  color: rgba(244, 233, 212, 0.78);
}

.page-contact .cx-hero__quick {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 24px;
  margin: 20px 0 0;
  padding: 14px 0 0;
  list-style: none;
  border-top: 1px solid var(--line-soft);
  font-size: 0.86rem;
  color: rgba(244, 233, 212, 0.72);
}

.page-contact .cx-hero__quick .mono {
  margin-right: 8px;
  color: var(--amber);
  letter-spacing: 0.08em;
}

.page-contact .cx-hero__figure {
  margin: 0;
  border: 1px solid var(--line);
  background: var(--ink-800);
}

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

.page-contact .cx-caption {
  padding: 10px 12px;
  border-top: 1px solid var(--line-soft);
  font-size: 0.78rem;
  line-height: 1.6;
  letter-spacing: 0.01em;
  color: var(--haze);
}

/* ---------- 工作区两栏 ---------- */
.page-contact .cx-bench {
  display: grid;
  gap: clamp(26px, 3.6vw, 44px);
  margin-top: clamp(28px, 4vw, 52px);
}

/* ---------- 联系卡 ---------- */
.page-contact .cx-card {
  position: relative;
  padding: var(--cx-pad);
  border: 1px solid var(--line-strong);
  background: linear-gradient(180deg, var(--ink-800), var(--ink-900));
}

.page-contact .cx-card::before {
  content: "";
  position: absolute;
  top: -1px;
  left: -1px;
  width: 14px;
  height: 14px;
  background: var(--amber);
}

.page-contact .cx-card__top {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
  justify-content: space-between;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--line);
}

.page-contact .cx-card__title {
  margin: 0;
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--sand);
}

.page-contact .cx-status {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 5px 10px;
  border: 1px solid rgba(47, 227, 208, 0.35);
  background: rgba(47, 227, 208, 0.08);
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.04em;
  color: var(--cyan-soft);
}

.page-contact .cx-status__dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 0 4px rgba(47, 227, 208, 0.14);
}

@media (prefers-reduced-motion: no-preference) {
  .page-contact .cx-status__dot {
    animation: cx-pulse 2.4s var(--ease) infinite;
  }
}

@keyframes cx-pulse {
  0%, 100% { box-shadow: 0 0 0 4px rgba(47, 227, 208, 0.14); }
  50% { box-shadow: 0 0 0 7px rgba(47, 227, 208, 0.04); }
}

.page-contact .cx-contact-rows {
  display: grid;
  gap: 0;
  margin: 4px 0 0;
}

.page-contact .cx-contact-row {
  display: grid;
  gap: 5px;
  padding: 14px 0;
  border-bottom: 1px solid var(--line-soft);
}

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

.page-contact .cx-contact-row dt {
  font-size: 0.76rem;
  letter-spacing: 0.16em;
  color: var(--haze);
}

.page-contact .cx-contact-row dd {
  margin: 0;
  font-size: 0.98rem;
  line-height: 1.6;
  color: var(--sand);
  overflow-wrap: anywhere;
}

.page-contact .cx-mail {
  font-family: var(--font-mono);
  font-size: 0.92rem;
  letter-spacing: 0.01em;
  color: var(--cyan);
  overflow-wrap: anywhere;
}

.page-contact .cx-phone {
  font-size: 1.15rem;
  letter-spacing: 0.08em;
  color: var(--amber);
}

.page-contact .cx-card__note {
  margin: 18px 0 0;
  padding-top: 14px;
  border-top: 1px solid var(--line-soft);
  font-size: 0.84rem;
  line-height: 1.72;
  color: var(--haze);
}

/* ---------- 右侧内容流 ---------- */
.page-contact .cx-flow {
  display: grid;
}

.page-contact .cx-section + .cx-section {
  margin-top: clamp(28px, 3.8vw, 48px);
  padding-top: clamp(24px, 3.2vw, 38px);
  border-top: 1px solid var(--line-soft);
}

.page-contact .cx-section__head h2 {
  margin: 10px 0 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.45rem, 1.15rem + 1.35vw, 2.1rem);
  line-height: 1.18;
  letter-spacing: 0.01em;
  color: var(--sand);
}

.page-contact .cx-section__head p {
  margin: 10px 0 0;
  max-width: 56ch;
  font-size: 0.95rem;
  line-height: 1.75;
  color: rgba(244, 233, 212, 0.74);
}

/* ---------- 准备清单折叠 ---------- */
.page-contact .cx-checklist {
  margin-top: 20px;
  border-top: 1px solid var(--line);
}

.page-contact .cx-item {
  border-bottom: 1px solid var(--line);
}

.page-contact .cx-item summary {
  display: flex;
  gap: 14px;
  align-items: baseline;
  padding: 14px 2px;
  list-style: none;
  cursor: pointer;
  font-size: 1rem;
  line-height: 1.5;
  color: var(--sand);
  transition: color 0.15s var(--ease);
}

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

.page-contact .cx-item summary::after {
  content: "+";
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 1.05rem;
  color: var(--cyan);
}

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

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

.page-contact .cx-item summary:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}

.page-contact .cx-item__idx {
  min-width: 1.4rem;
  font-size: 0.82rem;
  letter-spacing: 0.1em;
  color: var(--amber);
}

.page-contact .cx-item__body {
  padding: 0 2px 16px 1.4rem;
  font-size: 0.92rem;
  line-height: 1.78;
  color: rgba(244, 233, 212, 0.72);
}

/* ---------- 合作流程 ---------- */
.page-contact .cx-steps {
  margin: 22px 0 0;
  padding: 0 0 0 clamp(16px, 2.4vw, 24px);
  list-style: none;
  border-left: 1px solid var(--line);
}

.page-contact .cx-step {
  position: relative;
  padding-bottom: clamp(18px, 2.4vw, 26px);
}

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

.page-contact .cx-step::before {
  content: "";
  position: absolute;
  top: 0.62em;
  left: calc(clamp(16px, 2.4vw, 24px) * -1 - 4px);
  width: 7px;
  height: 7px;
  background: var(--cyan);
}

.page-contact .cx-step__no {
  display: block;
  font-size: 0.74rem;
  letter-spacing: 0.16em;
  color: var(--amber);
}

.page-contact .cx-step__t {
  margin: 6px 0 6px;
  font-size: 1.02rem;
  font-weight: 600;
  letter-spacing: 0.01em;
  color: var(--sand);
}

.page-contact .cx-step__d {
  margin: 0;
  font-size: 0.92rem;
  line-height: 1.78;
  color: rgba(244, 233, 212, 0.72);
}

/* ---------- 服务范围（奶油报表纸） ---------- */
.page-contact .cx-scope {
  padding: var(--cx-pad);
  border: 1px solid rgba(7, 26, 43, 0.16);
  background: var(--sand);
  color: var(--ink-900);
}

.page-contact .cx-scope .eyebrow {
  color: rgba(7, 26, 43, 0.6);
}

.page-contact .cx-scope .cx-section__head h2 {
  color: var(--ink-900);
}

.page-contact .cx-scope .cx-section__head p {
  color: rgba(7, 26, 43, 0.74);
}

.page-contact .cx-scope__list {
  margin: 20px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 0;
}

.page-contact .cx-scope__list li {
  padding: 12px 0;
  border-bottom: 1px solid rgba(7, 26, 43, 0.16);
  font-size: 0.9rem;
  line-height: 1.72;
  color: rgba(7, 26, 43, 0.78);
}

.page-contact .cx-scope__list li:first-child {
  border-top: 1px solid rgba(7, 26, 43, 0.16);
}

.page-contact .cx-scope__list strong {
  display: block;
  margin-bottom: 2px;
  font-size: 0.98rem;
  font-weight: 700;
  color: var(--ink-900);
}

.page-contact .cx-scope__note {
  margin: 18px 0 0;
  padding: 14px 16px;
  border-left: 3px solid var(--ember);
  background: rgba(7, 26, 43, 0.05);
  font-size: 0.9rem;
  line-height: 1.76;
  color: rgba(7, 26, 43, 0.82);
}

.page-contact .cx-scope__figure {
  margin: 22px 0 0;
  border: 1px solid rgba(7, 26, 43, 0.2);
  background: var(--ink-800);
}

.page-contact .cx-scope__figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

.page-contact .cx-scope__figure .cx-caption {
  background: var(--ink-900);
  border-top-color: rgba(111, 140, 163, 0.3);
}

/* ---------- 写信区 ---------- */
.page-contact .cx-compose {
  margin-top: clamp(40px, 5.5vw, 72px);
  padding: var(--cx-pad);
  border: 1px solid var(--line-strong);
  background: linear-gradient(160deg, rgba(12, 38, 59, 0.94), rgba(7, 26, 43, 0.94));
}

.page-contact .cx-compose h2 {
  margin: 10px 0 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.4rem, 1.1rem + 1.3vw, 2rem);
  line-height: 1.18;
  color: var(--sand);
}

.page-contact .cx-compose__lead {
  margin: 10px 0 0;
  max-width: 56ch;
  font-size: 0.94rem;
  line-height: 1.75;
  color: rgba(244, 233, 212, 0.74);
}

.page-contact .cx-fields {
  display: grid;
  gap: 16px 20px;
  margin-top: 22px;
}

.page-contact .cx-field {
  display: grid;
  gap: 6px;
}

.page-contact .cx-field__label {
  font-size: 0.82rem;
  letter-spacing: 0.04em;
  color: var(--haze);
}

.page-contact .cx-field__label em {
  font-style: normal;
  color: var(--ember);
}

.page-contact .cx-field input,
.page-contact .cx-field textarea {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--line);
  border-radius: 0;
  background: var(--ink-900);
  color: var(--sand);
  font-family: var(--font-body);
  font-size: 0.94rem;
  line-height: 1.6;
}

.page-contact .cx-field textarea {
  resize: vertical;
  min-height: 6.5rem;
}

.page-contact .cx-field input::placeholder,
.page-contact .cx-field textarea::placeholder {
  color: rgba(111, 140, 163, 0.72);
}

.page-contact .cx-field input:focus,
.page-contact .cx-field textarea:focus {
  outline: 2px solid var(--cyan);
  outline-offset: 1px;
  border-color: var(--cyan);
}

.page-contact .cx-field input:invalid:not(:placeholder-shown),
.page-contact .cx-field textarea:invalid:not(:placeholder-shown) {
  border-color: var(--ember);
}

.page-contact .cx-field input:valid:not(:placeholder-shown),
.page-contact .cx-field textarea:valid:not(:placeholder-shown) {
  border-color: rgba(47, 227, 208, 0.62);
}

.page-contact .cx-field__hint {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.02em;
  color: var(--haze);
}

.page-contact .cx-compose__foot {
  margin: 22px 0 0;
  padding-top: 16px;
  border-top: 1px solid var(--line-soft);
  font-size: 0.88rem;
  line-height: 1.8;
  color: rgba(244, 233, 212, 0.74);
  overflow-wrap: anywhere;
}

.page-contact .cx-compose__mail {
  color: var(--cyan);
  font-size: 0.84rem;
}

.page-contact .cx-compose__foot a {
  color: var(--cyan-soft);
  text-decoration: underline;
  text-decoration-color: rgba(184, 243, 236, 0.45);
  text-underline-offset: 3px;
}

.page-contact .cx-compose__foot a:hover {
  color: var(--amber);
}

/* ---------- 底部三条分流 ---------- */
.page-contact .cx-routes-block {
  margin-top: clamp(36px, 5vw, 64px);
}

.page-contact .cx-routes-block h2 {
  margin: 10px 0 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.4rem, 1.1rem + 1.3vw, 2rem);
  line-height: 1.18;
  color: var(--sand);
}

.page-contact .cx-routes {
  display: grid;
  margin-top: 18px;
  border-top: 1px solid var(--line);
}

.page-contact .cx-route {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  gap: 12px 16px;
  align-items: center;
  padding: 16px 4px;
  border-bottom: 1px solid var(--line);
  text-decoration: none;
  color: var(--sand);
  transition: background 0.16s var(--ease), border-color 0.16s var(--ease);
}

.page-contact .cx-route:hover,
.page-contact .cx-route:focus-visible {
  background: rgba(12, 38, 59, 0.72);
  border-color: rgba(47, 227, 208, 0.4);
}

.page-contact .cx-route:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}

.page-contact .cx-route__k {
  align-self: start;
  padding-top: 3px;
  font-size: 0.8rem;
  letter-spacing: 0.1em;
  color: var(--amber);
}

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

.page-contact .cx-route__t {
  display: block;
  font-size: 0.98rem;
  font-weight: 600;
  line-height: 1.5;
  color: var(--sand);
}

.page-contact .cx-route__d {
  display: block;
  margin-top: 4px;
  font-size: 0.86rem;
  line-height: 1.7;
  color: rgba(244, 233, 212, 0.68);
}

.page-contact .cx-route__arrow {
  font-size: 1rem;
  color: var(--cyan);
  transition: transform 0.18s var(--ease);
}

.page-contact .cx-route:hover .cx-route__arrow,
.page-contact .cx-route:focus-visible .cx-route__arrow {
  transform: translateX(4px);
}

/* ---------- 断点 ---------- */
@media (min-width: 760px) {
  .page-contact .cx-fields {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-contact .cx-field--wide {
    grid-column: 1 / -1;
  }
}

@media (min-width: 900px) {
  .page-contact .cx-hero {
    grid-template-columns: minmax(0, 1.08fr) minmax(0, 0.92fr);
  }
}

@media (min-width: 1024px) {
  .page-contact .cx-bench {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    align-items: start;
  }

  .page-contact .cx-card {
    position: sticky;
    top: 28px;
  }

  .page-contact .cx-compose,
  .page-contact .cx-routes-block {
    margin-inline: 0;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .cx-route,
  .page-contact .cx-route__arrow,
  .page-contact .cx-item summary {
    transition: none;
  }
}
<<<END>>>