.page-contact {
  display: block;
  background: var(--ink-900);
  color: var(--cream);
}

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

/* ---------- 首屏框景 ---------- */
.page-contact .contact-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(1.75rem, 4vw, 3rem) 0 clamp(3rem, 7vw, 5.5rem);
}

.page-contact .contact-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    radial-gradient(circle at 84% 14%, rgba(47, 227, 234, 0.16), transparent 46%),
    radial-gradient(circle at 8% 84%, rgba(255, 62, 154, 0.13), transparent 52%),
    repeating-linear-gradient(0deg, rgba(147, 162, 188, 0.05) 0 1px, transparent 1px 4px);
}

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

.page-contact .contact-hero__grid {
  display: grid;
  gap: clamp(2rem, 5vw, 3.25rem);
  margin-top: clamp(1.75rem, 4vw, 2.75rem);
}

.page-contact .contact-hero h1 {
  margin: 0.4rem 0 0;
  font-family: var(--font-display);
  font-size: clamp(2.6rem, 9vw, 5rem);
  font-weight: 700;
  line-height: 1.02;
  letter-spacing: 0.02em;
  color: var(--cream);
}

.page-contact .contact-hero h1::after {
  content: "";
  display: block;
  width: 3.5rem;
  height: 4px;
  margin-top: 1.15rem;
  border-radius: var(--radius-pill);
  background: linear-gradient(90deg, var(--magenta), var(--cyan));
}

.page-contact .contact-hero__lead {
  max-width: 34rem;
  margin: 1.5rem 0 0;
  font-size: clamp(1rem, 1.4vw, 1.12rem);
  line-height: 1.78;
  color: var(--steel);
}

.page-contact .contact-hero__facts {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem 1.9rem;
  margin: 2rem 0 0;
  padding: 0;
  list-style: none;
  font-size: 0.86rem;
  letter-spacing: 0.04em;
  color: var(--steel);
}

.page-contact .contact-hero__facts li {
  display: flex;
  align-items: baseline;
  gap: 0.4rem;
}

.page-contact .contact-hero__facts .mono {
  font-family: var(--font-mono);
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--cyan);
}

.page-contact .contact-hero__figure {
  position: relative;
  margin: 0;
  padding: 0.65rem;
  border: 1px solid var(--line-cyan);
  border-radius: var(--radius-lg);
  background: var(--panel-800);
}

.page-contact .contact-hero__figure .media-frame__img {
  border-radius: calc(var(--radius-lg) - 0.65rem);
}

@media (min-width: 960px) {
  .page-contact .contact-hero__grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    align-items: center;
  }
}

/* ---------- 区块骨架 ---------- */
.page-contact .contact-section {
  position: relative;
  padding: clamp(2.75rem, 6vw, 5rem) 0;
}

.page-contact .contact-section + .contact-section::before {
  content: "";
  position: absolute;
  top: 0;
  left: var(--gutter);
  right: var(--gutter);
  height: 1px;
  background: var(--line-dark);
}

/* ---------- 渠道卡片 ---------- */
.page-contact .channel-row {
  display: grid;
  gap: 1.25rem;
  margin-top: clamp(1.75rem, 4vw, 2.5rem);
}

.page-contact .channel-card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
  padding: clamp(1.6rem, 3vw, 2.1rem);
  border: 1px solid var(--cream-line);
  border-radius: var(--radius-lg);
  background: var(--cream);
  color: var(--ink-on-cream);
}

.page-contact .channel-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: clamp(1.6rem, 3vw, 2.1rem);
  right: clamp(1.6rem, 3vw, 2.1rem);
  height: 3px;
  border-radius: 0 0 3px 3px;
  background: var(--cyan);
}

.page-contact .channel-card--biz::before {
  background: var(--magenta);
}

.page-contact .channel-card--tel::before {
  background: var(--yellow);
}

.page-contact .channel-card .capsule--state {
  align-self: flex-start;
  padding: 0.3rem 0.8rem;
  border: 1px solid rgba(17, 23, 34, 0.24);
  border-radius: var(--radius-pill);
  background: transparent;
  color: rgba(17, 23, 34, 0.72);
  font-size: 0.74rem;
  letter-spacing: 0.12em;
}

.page-contact .channel-card__value {
  margin: 0;
  font-family: var(--font-mono);
  font-size: clamp(1rem, 1.7vw, 1.22rem);
  font-weight: 700;
  line-height: 1.35;
  letter-spacing: -0.01em;
  color: var(--ink-on-cream);
  word-break: break-all;
}

.page-contact .channel-card__desc {
  margin: 0;
  font-size: 0.92rem;
  line-height: 1.72;
  color: rgba(17, 23, 34, 0.7);
}

@media (min-width: 780px) {
  .page-contact .channel-row {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

/* ---------- 来意分流 ---------- */
.page-contact .router {
  display: grid;
  gap: 1.5rem;
  margin-top: clamp(1.75rem, 4vw, 2.5rem);
}

.page-contact .router__tabs {
  display: flex;
  gap: 0.55rem;
  overflow-x: auto;
  padding-bottom: 0.6rem;
  -webkit-overflow-scrolling: touch;
}

.page-contact .router__tab {
  flex: 0 0 auto;
  min-height: 44px;
  padding: 0.7rem 1.2rem;
  border: 1px solid var(--line-dark);
  border-radius: var(--radius-pill);
  background: var(--panel-800);
  color: var(--steel);
  font-family: var(--font-body);
  font-size: 0.94rem;
  letter-spacing: 0.02em;
  white-space: nowrap;
  cursor: pointer;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease), background var(--dur) var(--ease);
}

.page-contact .router__tab:hover {
  color: var(--cream);
  border-color: var(--line-cyan);
}

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

.page-contact .router__tab[aria-selected="true"] {
  color: var(--cream);
  border-color: var(--cyan);
  background: linear-gradient(135deg, rgba(47, 227, 234, 0.18), rgba(255, 62, 154, 0.14));
}

.page-contact .router__panel {
  padding: clamp(1.6rem, 3vw, 2.35rem);
  border: 1px solid var(--line-dark);
  border-radius: var(--radius-lg);
  background: var(--panel-800);
}

.page-contact .router__panel[hidden] {
  display: none;
}

.page-contact .router__panel + .router__panel {
  margin-top: 1rem;
}

.page-contact .router__route {
  margin: 0 0 1rem;
  font-family: var(--font-mono);
  font-size: 0.84rem;
  letter-spacing: 0.05em;
  color: var(--cyan);
  word-break: break-all;
}

.page-contact .router__panel h3 {
  margin: 0 0 0.85rem;
  font-family: var(--font-display);
  font-size: clamp(1.2rem, 2.1vw, 1.5rem);
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--cream);
}

.page-contact .router__panel p {
  margin: 0;
  font-size: 0.95rem;
  line-height: 1.78;
  color: var(--steel);
}

.page-contact .router__panel p a,
.page-contact .mailbox-panel__list a {
  color: var(--cyan);
  text-decoration: underline;
  text-decoration-color: rgba(47, 227, 234, 0.45);
  text-underline-offset: 0.22em;
}

@media (min-width: 900px) {
  .page-contact .router {
    grid-template-columns: minmax(0, 240px) minmax(0, 1fr);
    align-items: start;
    gap: 2rem;
  }

  .page-contact .router__tabs {
    flex-direction: column;
    overflow: visible;
    padding-bottom: 0;
  }

  .page-contact .router__tab {
    width: 100%;
    text-align: left;
    white-space: normal;
  }
}

/* ---------- 服务时间与回复节奏 ---------- */
.page-contact .hours-grid {
  display: grid;
  gap: 1.25rem;
  margin-top: clamp(1.75rem, 4vw, 2.5rem);
}

.page-contact .hours-card {
  padding: clamp(1.6rem, 3vw, 2.1rem);
  border: 1px solid var(--line-dark);
  border-radius: var(--radius-lg);
  background: var(--panel-800);
}

.page-contact .hours-card--peak {
  border-color: var(--line-warn);
  background: linear-gradient(160deg, rgba(255, 198, 61, 0.11), var(--panel-800) 62%);
}

.page-contact .hours-card__value {
  margin: 0.6rem 0 0;
  font-family: var(--font-mono);
  font-size: clamp(1.6rem, 3.8vw, 2.4rem);
  font-weight: 700;
  line-height: 1.12;
  color: var(--cream);
}

.page-contact .hours-card--peak .hours-card__value {
  color: var(--yellow);
}

.page-contact .hours-card__note {
  margin: 0.95rem 0 0;
  font-size: 0.92rem;
  line-height: 1.72;
  color: var(--steel);
}

.page-contact .reply-order {
  display: grid;
  gap: 0;
  margin: clamp(1.75rem, 4vw, 2.5rem) 0 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--line-dark);
}

.page-contact .reply-order li {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 1rem 1.25rem;
  padding: 1.4rem 0;
  border-bottom: 1px solid var(--line-dark);
}

.page-contact .reply-order__num {
  padding-top: 0.2rem;
  font-family: var(--font-mono);
  font-size: 0.95rem;
  letter-spacing: 0.08em;
  color: var(--orange);
}

.page-contact .reply-order h3 {
  margin: 0 0 0.4rem;
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--cream);
}

.page-contact .reply-order p {
  margin: 0;
  font-size: 0.92rem;
  line-height: 1.72;
  color: var(--steel);
}

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

/* ---------- 合作方向 ---------- */
.page-contact .collab-list {
  display: grid;
  gap: 0.85rem;
  margin-top: clamp(1.75rem, 4vw, 2.5rem);
}

.page-contact .collab-item {
  overflow: hidden;
  border: 1px solid var(--line-dark);
  border-radius: var(--radius-md);
  background: var(--panel-800);
  transition: border-color var(--dur) var(--ease);
}

.page-contact .collab-item:hover,
.page-contact .collab-item[open] {
  border-color: var(--line-cyan);
}

.page-contact .collab-item__summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  min-height: 44px;
  padding: 1.15rem 1.4rem;
  list-style: none;
  cursor: pointer;
  font-family: var(--font-display);
  font-size: clamp(1rem, 1.8vw, 1.16rem);
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--cream);
}

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

.page-contact .collab-item__summary::after {
  content: "+";
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 1.25rem;
  color: var(--cyan);
  transition: transform var(--dur) var(--ease);
}

.page-contact .collab-item[open] .collab-item__summary::after {
  transform: rotate(45deg);
}

.page-contact .collab-item:hover .collab-item__summary {
  color: var(--cyan);
}

.page-contact .collab-item__body {
  padding: 0 1.4rem 1.5rem;
}

.page-contact .collab-item__body p {
  margin: 0 0 1rem;
  font-size: 0.94rem;
  line-height: 1.78;
  color: var(--steel);
}

.page-contact .collab-item__mats {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-contact .collab-item__mats li {
  padding: 0.35rem 0.85rem;
  border: 1px solid var(--line-dark);
  border-radius: var(--radius-pill);
  font-size: 0.82rem;
  letter-spacing: 0.04em;
  color: var(--steel);
}

/* ---------- 内容纠错 ---------- */
.page-contact .fix-grid {
  display: grid;
  gap: clamp(1.75rem, 4vw, 2.5rem);
  margin-top: clamp(1.75rem, 4vw, 2.5rem);
}

.page-contact .fix-lead {
  margin: 0 0 1.6rem;
  font-size: 1rem;
  line-height: 1.78;
  color: var(--steel);
}

.page-contact .fix-steps {
  display: grid;
  gap: 1.05rem;
  counter-reset: fixstep;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-contact .fix-steps li {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 0.9rem;
  counter-increment: fixstep;
  font-size: 0.94rem;
  line-height: 1.75;
  color: var(--cream);
}

.page-contact .fix-steps li::before {
  content: counter(fixstep, decimal-leading-zero);
  padding-top: 0.15rem;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  letter-spacing: 0.06em;
  color: var(--cyan);
}

.page-contact .fix-figure {
  margin: 0;
  border: 1px solid var(--line-dark);
  border-radius: var(--radius-lg);
  background: var(--panel-800);
  padding: 0.65rem;
}

.page-contact .fix-figure .media-frame__img {
  border-radius: calc(var(--radius-lg) - 0.65rem);
}

.page-contact .mail-template {
  position: relative;
  margin-top: clamp(1.75rem, 4vw, 2.5rem);
  padding: clamp(1.5rem, 3vw, 2rem);
  border: 1px solid var(--line-cyan);
  border-radius: var(--radius-md);
  background: var(--ink-950);
}

.page-contact .mail-template::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: repeating-linear-gradient(90deg, var(--cyan) 0 2px, transparent 2px 14px);
  opacity: 0.5;
}

.page-contact .mail-template__line {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem 1rem;
  margin: 0.65rem 0 0;
  font-family: var(--font-mono);
  font-size: 0.86rem;
  line-height: 1.65;
  color: var(--cyan);
  word-break: break-word;
}

.page-contact .mail-template__key {
  flex: 0 0 auto;
  min-width: 3.2rem;
  color: var(--magenta);
}

@media (min-width: 900px) {
  .page-contact .fix-grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 0.92fr);
    align-items: start;
  }
}

/* ---------- 函件说明 ---------- */
.page-contact .mailbox-panel {
  margin-top: clamp(1.75rem, 4vw, 2.5rem);
  padding: clamp(1.75rem, 4vw, 2.75rem);
  border-radius: var(--radius-lg);
  color: var(--ink-on-cream);
}

.page-contact .mailbox-panel__addr {
  margin: 0.8rem 0 0;
  font-family: var(--font-display);
  font-size: clamp(1.15rem, 2.5vw, 1.6rem);
  font-weight: 700;
  line-height: 1.5;
  letter-spacing: 0.02em;
  color: var(--ink-on-cream);
}

.page-contact .mailbox-panel__list {
  display: grid;
  gap: 0.9rem;
  margin: 1.6rem 0 0;
  padding: 0;
  list-style: none;
}

.page-contact .mailbox-panel__list li {
  position: relative;
  padding-left: 1.15rem;
  font-size: 0.92rem;
  line-height: 1.75;
  color: rgba(17, 23, 34, 0.78);
}

.page-contact .mailbox-panel__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.68em;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--orange);
}

/* ---------- 降低动态偏好 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-contact .collab-item,
  .page-contact .collab-item__summary::after,
  .page-contact .router__tab {
    transition: none;
  }
}
<<<END>>>