.page-contact {
  padding-bottom: clamp(3rem, 7vw, 5.5rem);
}

.page-contact .breadcrumb {
  margin: clamp(1rem, 2.4vw, 1.75rem) 0 clamp(1rem, 2.6vw, 1.75rem);
}

.page-contact .contact-hero {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(1rem, 2.4vw, 1.75rem);
  align-items: start;
}

/* ---------- 左侧联系主卡 ---------- */
.page-contact .contact-card {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  padding: clamp(1.25rem, 4vw, 2.5rem);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-lg);
  background: var(--ink-900);
  box-shadow: 0 24px 60px rgba(3, 10, 18, 0.55);
}

.page-contact .contact-card__bg {
  position: absolute;
  inset: 0;
  z-index: -1;
}

.page-contact .contact-card__bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.32;
  filter: saturate(115%);
}

.page-contact .contact-card__bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(120% 90% at 0% 0%, rgba(25, 230, 255, 0.18), transparent 60%),
    linear-gradient(200deg, rgba(6, 20, 33, 0.88) 20%, rgba(6, 20, 33, 0.96) 75%);
}

.page-contact .contact-card h1 {
  margin: 0.6rem 0 0;
  font-family: var(--font-display);
  font-weight: 900;
  letter-spacing: -0.02em;
  line-height: 1.2;
  font-size: clamp(1.55rem, 5.4vw, 2.4rem);
  color: var(--paper);
  max-width: 20ch;
}

.page-contact .contact-card__lead {
  margin: 0.85rem 0 0;
  color: var(--mist);
  font-size: 0.95rem;
  line-height: 1.75;
  max-width: 40ch;
}

.page-contact .channel {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem 0.75rem;
  margin-top: clamp(1.25rem, 3vw, 1.85rem);
  padding-top: clamp(1rem, 2.6vw, 1.5rem);
  border-top: 1px solid var(--line);
}

.page-contact .channel__key {
  flex: 0 0 100%;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.14em;
  color: var(--gold);
  text-transform: uppercase;
}

.page-contact .channel__mail,
.page-contact .channel__tel {
  flex: 1 1 auto;
  min-width: 0;
  font-family: var(--font-mono);
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--cyan);
  text-decoration: none;
  word-break: break-all;
  transition: color 180ms var(--ease);
}

.page-contact .channel__mail {
  font-size: clamp(1rem, 4.6vw, 1.65rem);
}

.page-contact .channel__tel {
  font-size: clamp(1.1rem, 5vw, 1.75rem);
  color: var(--paper);
}

.page-contact .channel__mail:hover,
.page-contact .channel__tel:hover {
  color: var(--paper);
  text-decoration: underline;
  text-underline-offset: 4px;
}

.page-contact .channel__cta {
  flex: 0 0 auto;
}

.page-contact .contact-card__note {
  margin: clamp(1rem, 2.6vw, 1.5rem) 0 0;
  padding-left: 0.85rem;
  border-left: 2px solid var(--cyan);
  font-size: 0.8125rem;
  line-height: 1.8;
  color: var(--mist);
}

/* ---------- 右侧：反馈步骤 + 地址 ---------- */
.page-contact .contact-side {
  display: grid;
  gap: clamp(1rem, 2.4vw, 1.75rem);
}

.page-contact .feedback {
  padding: clamp(1.1rem, 3.4vw, 1.85rem);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--glass);
  backdrop-filter: blur(6px);
}

.page-contact .feedback__intro {
  margin: 0.6rem 0 0;
  color: var(--mist);
  font-size: 0.9rem;
  line-height: 1.75;
}

.page-contact .feedback-list {
  list-style: none;
  margin: clamp(1rem, 2.6vw, 1.5rem) 0 0;
  padding: 0;
  display: grid;
  gap: 0.5rem;
}

.page-contact .feedback-step {
  position: relative;
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0.75rem;
  padding: 0.55rem 0 0.55rem 0;
}

.page-contact .feedback-step::before {
  content: "";
  position: absolute;
  left: 0.62rem;
  top: 2.1rem;
  bottom: -0.35rem;
  width: 1px;
  background: linear-gradient(180deg, var(--cyan-soft), transparent);
}

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

.page-contact .feedback-step .index-num {
  font-size: 0.95rem;
  line-height: 1.6;
  color: var(--cyan);
  padding-top: 0.15rem;
}

.page-contact .feedback-step details {
  border-bottom: 1px solid var(--line);
  padding-bottom: 0.55rem;
}

.page-contact .feedback-step summary {
  cursor: pointer;
  list-style: none;
  font-weight: 700;
  font-size: 0.975rem;
  line-height: 1.6;
  color: var(--paper);
  display: flex;
  align-items: baseline;
  gap: 0.5rem;
}

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

.page-contact .feedback-step summary::after {
  content: "展开";
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.08em;
  color: var(--mist);
  transition: color 160ms var(--ease);
}

.page-contact .feedback-step details[open] summary::after {
  content: "收起";
  color: var(--cyan);
}

.page-contact .feedback-step summary:hover {
  color: var(--cyan);
}

.page-contact .feedback-step details p {
  margin: 0.55rem 0 0;
  font-size: 0.875rem;
  line-height: 1.8;
  color: var(--mist);
  max-width: 44ch;
}

.page-contact .feedback-step summary:focus-visible,
.page-contact .channel__mail:focus-visible,
.page-contact .channel__tel:focus-visible,
.page-contact .more-links a:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
  border-radius: var(--radius-sm);
}

/* ---------- 地址卡 ---------- */
.page-contact .address-card {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  padding: clamp(1.1rem, 3.4vw, 1.85rem);
  border-radius: var(--radius);
  border: 1px solid var(--line-strong);
  background: var(--ink-800);
}

.page-contact .address-card__bg {
  position: absolute;
  inset: 0;
  z-index: -1;
}

.page-contact .address-card__bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.26;
}

.page-contact .address-card__bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(115deg, rgba(6, 20, 33, 0.95) 35%, rgba(16, 54, 74, 0.72) 100%);
}

.page-contact .address-card h2 {
  margin: 0.55rem 0 0;
  font-family: var(--font-display);
  font-weight: 900;
  letter-spacing: -0.01em;
  line-height: 1.45;
  font-size: clamp(1.05rem, 3.6vw, 1.3rem);
  color: var(--paper);
}

.page-contact .address-card p {
  margin: 0.65rem 0 0;
  font-size: 0.875rem;
  line-height: 1.8;
  color: var(--mist);
  max-width: 42ch;
}

.page-contact .address-facts {
  list-style: none;
  margin: clamp(1rem, 2.6vw, 1.4rem) 0 0;
  padding: 0;
  display: grid;
  gap: 0.5rem;
}

.page-contact .address-facts li {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.25rem 0.75rem;
  padding-top: 0.5rem;
  border-top: 1px solid rgba(216, 181, 106, 0.22);
  font-family: var(--font-mono);
  font-size: 0.75rem;
}

.page-contact .address-facts span {
  color: var(--gold);
  letter-spacing: 0.1em;
}

.page-contact .address-facts strong {
  margin-left: auto;
  color: var(--paper);
  font-weight: 700;
}

/* ---------- 响应节奏 ---------- */
.page-contact .reach {
  margin-top: clamp(2.25rem, 6vw, 4rem);
}

.page-contact .reach .section-head h2,
.page-contact .more .section-head h2 {
  margin: 0.5rem 0 0;
  font-family: var(--font-display);
  font-weight: 900;
  letter-spacing: -0.015em;
  line-height: 1.3;
  font-size: clamp(1.35rem, 4.2vw, 1.9rem);
  color: var(--paper);
}

.page-contact .reach-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
  margin-top: clamp(1.1rem, 3vw, 1.75rem);
}

.page-contact .reach-item {
  padding: clamp(1.1rem, 3vw, 1.6rem);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--ink-900);
  transition: transform 200ms var(--ease), border-color 200ms var(--ease);
}

.page-contact .reach-item:hover {
  transform: translateY(-2px);
  border-color: var(--line-strong);
}

.page-contact .reach-item h3 {
  margin: 0.7rem 0 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(1rem, 3vw, 1.125rem);
  line-height: 1.5;
  color: var(--paper);
}

.page-contact .reach-item p {
  margin: 0.5rem 0 0;
  font-size: 0.875rem;
  line-height: 1.8;
  color: var(--mist);
}

.page-contact .reach-item--wide {
  background: linear-gradient(160deg, var(--ink-800), var(--ink-900));
  border-color: var(--line-strong);
}

.page-contact .reach-list {
  list-style: none;
  margin: 0.75rem 0 0;
  padding: 0;
  display: grid;
  gap: 0.45rem;
}

.page-contact .reach-list li {
  position: relative;
  padding-left: 1rem;
  font-size: 0.875rem;
  line-height: 1.7;
  color: var(--mist);
}

.page-contact .reach-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.62em;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--cyan);
}

/* ---------- 备案条 ---------- */
.page-contact .reg-strip {
  margin-top: clamp(1.75rem, 4.5vw, 3rem);
  padding: clamp(0.9rem, 2.6vw, 1.25rem) clamp(1rem, 3vw, 1.5rem);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: rgba(157, 184, 200, 0.05);
}

.page-contact .reg-strip__line {
  margin: 0;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: wrap;
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  letter-spacing: 0.01em;
  color: var(--paper);
}

.page-contact .reg-strip__note {
  margin: 0.4rem 0 0;
  font-size: 0.75rem;
  line-height: 1.7;
  color: var(--mist);
}

/* ---------- 延伸入口 ---------- */
.page-contact .more {
  margin-top: clamp(2rem, 5vw, 3.5rem);
}

.page-contact .more-links {
  list-style: none;
  margin: clamp(1rem, 2.6vw, 1.5rem) 0 0;
  padding: 0;
  display: grid;
  gap: 0.5rem;
}

.page-contact .more-links a {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 0.75rem;
  padding: 0.85rem 0.25rem;
  border-bottom: 1px solid var(--line);
  text-decoration: none;
  color: var(--paper);
  transition: color 180ms var(--ease), padding-left 180ms var(--ease);
}

.page-contact .more-links a:hover {
  color: var(--cyan);
  padding-left: 0.5rem;
}

.page-contact .more-links__num {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--gold);
  letter-spacing: 0.08em;
}

.page-contact .more-links__text {
  font-size: 0.9rem;
  line-height: 1.6;
}

.page-contact .more-links__arrow {
  font-family: var(--font-mono);
  color: var(--cyan);
}

/* ---------- 桌面分屏 ---------- */
@media (min-width: 900px) {
  .page-contact .contact-hero {
    grid-template-columns: 5fr 7fr;
    gap: clamp(1.25rem, 2.2vw, 2rem);
  }

  .page-contact .contact-card {
    position: sticky;
    top: 6.5rem;
  }

  .page-contact .reach-grid {
    grid-template-columns: 1.15fr 1fr 1.25fr;
    align-items: stretch;
  }

  .page-contact .more-links {
    grid-template-columns: 1fr 1fr;
    column-gap: 2rem;
  }

  .page-contact .reg-strip {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 0.5rem 1.5rem;
  }

  .page-contact .reg-strip__note {
    margin: 0;
  }
}

@media (min-width: 1200px) {
  .page-contact .contact-card h1 {
    max-width: 18ch;
  }

  .page-contact .feedback-list {
    gap: 0.65rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .reach-item,
  .page-contact .more-links a,
  .page-contact .channel__mail,
  .page-contact .channel__tel {
    transition: none;
  }

  .page-contact .reach-item:hover,
  .page-contact .more-links a:hover {
    transform: none;
  }
}
<<<PAGE_CSS_END>>>