.page-contact {
  --contact-card-bg: rgba(12, 42, 64, 0.72);
  --contact-card-bg-soft: rgba(23, 59, 82, 0.55);
  --contact-grid-line: rgba(45, 226, 208, 0.07);
  padding-bottom: 0;
}

/* ---------- 面包屑 ---------- */
.page-contact .contact-crumb {
  margin: clamp(1.1rem, 3vw, 1.8rem) 0 clamp(1rem, 2.5vw, 1.75rem);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.06em;
  color: var(--mist);
}

.page-contact .contact-crumb a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color 180ms ease-out;
}

.page-contact .contact-crumb a:hover,
.page-contact .contact-crumb a:focus-visible {
  border-bottom-color: var(--cyan);
}

.page-contact .contact-crumb .breadcrumb-sep {
  margin: 0 0.5rem;
  color: var(--stone);
}

/* ---------- 首屏非对称双栏 ---------- */
.page-contact .contact-hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(1.75rem, 5vw, 3rem);
  align-items: start;
  margin-bottom: clamp(2.25rem, 6vw, 4rem);
}

.page-contact .hero-copy {
  min-width: 0;
}

.page-contact h1 {
  margin: 0.55rem 0 1rem;
  max-width: 20ch;
  font-family: var(--font-display);
  font-size: clamp(2rem, 5.4vw, 3.5rem);
  font-weight: 800;
  line-height: 1.08;
  letter-spacing: -0.02em;
  color: var(--cream);
}

.page-contact .hero-lede {
  margin: 0 0 clamp(1.25rem, 3.5vw, 2rem);
  max-width: 52ch;
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.8;
  color: var(--mist);
}

/* ---------- 邮件主卡 ---------- */
.page-contact .mail-card {
  position: relative;
  overflow: hidden;
  padding: clamp(1.15rem, 3vw, 1.75rem);
  background: linear-gradient(152deg, rgba(12, 42, 64, 0.96), rgba(3, 16, 26, 0.98));
  border-color: var(--line-cyan);
  transition: box-shadow 200ms ease-out, transform 200ms ease-out;
}

.page-contact .mail-card::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--contact-grid-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--contact-grid-line) 1px, transparent 1px);
  background-size: 26px 26px;
  pointer-events: none;
}

.page-contact .mail-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--panel-shadow-lift);
}

.page-contact .mail-label {
  position: relative;
  margin: 0 0 0.7rem;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  color: var(--cyan);
}

.page-contact .mail-addr {
  position: relative;
  display: block;
  margin-bottom: 1.1rem;
  padding-bottom: 0.35rem;
  font-family: var(--font-mono);
  font-size: clamp(0.98rem, 2.7vw, 1.42rem);
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--glow);
  text-decoration: none;
  word-break: break-all;
  border-bottom: 1px dashed rgba(45, 226, 208, 0.55);
  transition: color 180ms ease-out, border-color 180ms ease-out;
}

.page-contact .mail-addr:hover,
.page-contact .mail-addr:focus-visible {
  color: var(--cyan);
  border-bottom-style: solid;
  border-bottom-color: var(--cyan);
}

.page-contact .mail-foot {
  position: relative;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.85rem 1.25rem;
}

.page-contact .mail-status {
  display: inline-flex;
  align-items: center;
  font-family: var(--font-mono);
  font-size: 0.76rem;
  letter-spacing: 0.03em;
  color: var(--moss);
}

.page-contact .mail-dot {
  display: inline-block;
  width: 7px;
  height: 7px;
  margin-right: 0.5rem;
  border-radius: 50%;
  background: var(--moss);
  box-shadow: 0 0 0 3px rgba(127, 163, 122, 0.2);
  animation: contact-pulse 1.8s ease-in-out infinite;
}

@keyframes contact-pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.4; transform: scale(0.78); }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .mail-dot { animation: none; }
  .page-contact .mail-card,
  .page-contact .mail-addr,
  .page-contact .stack-card,
  .page-contact .band-phone { transition: none; }
}

/* ---------- 右侧层叠信息卡 ---------- */
.page-contact .contact-stack {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 0.95rem;
  min-width: 0;
}

.page-contact .stack-card {
  position: relative;
  padding: 1.05rem 1.15rem;
  background: var(--contact-card-bg-soft);
  border: 1.5px solid var(--line);
  box-shadow: 6px 6px 0 rgba(3, 16, 26, 0.62);
  transition: transform 180ms ease-out, border-color 180ms ease-out, box-shadow 180ms ease-out;
}

.page-contact .stack-card:hover,
.page-contact .stack-card:focus-within {
  transform: translateY(-3px);
  border-color: var(--line-cyan);
  box-shadow: 9px 9px 0 rgba(3, 16, 26, 0.72);
}

.page-contact .stack-card--addr {
  background: var(--contact-card-bg);
}

.page-contact .stack-card--note {
  border-left: 3px solid var(--coral);
}

.page-contact .stack-label {
  margin: 0 0 0.45rem;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.14em;
  color: var(--stone);
}

.page-contact .stack-phone {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: clamp(1.15rem, 3.4vw, 1.5rem);
  font-weight: 700;
  letter-spacing: 0.01em;
  color: var(--glow);
  text-decoration: none;
  border-bottom: 2px solid rgba(255, 107, 74, 0.7);
  padding-bottom: 0.1rem;
  transition: color 180ms ease-out, border-color 180ms ease-out;
}

.page-contact .stack-phone:hover,
.page-contact .stack-phone:focus-visible {
  color: var(--coral);
  border-bottom-color: var(--coral);
}

.page-contact .stack-addr {
  margin: 0;
  font-family: var(--font-display);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--cream);
}

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

/* ---------- 章节骨架 ---------- */
.page-contact .contact-section {
  padding-top: clamp(1.75rem, 4.5vw, 3rem);
  border-top: 1px solid var(--line-soft);
}

.page-contact .section-head {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 0.6rem;
  align-items: start;
  margin-bottom: clamp(1.25rem, 3vw, 2rem);
}

.page-contact .section-index {
  margin: 0;
  font-family: var(--font-mono);
  font-size: clamp(1.5rem, 4vw, 2.2rem);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--cyan);
  opacity: 0.6;
}

.page-contact .contact-section h2 {
  margin: 0 0 0.55rem;
  font-family: var(--font-display);
  font-size: clamp(1.4rem, 3.3vw, 2.05rem);
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: -0.015em;
  color: var(--cream);
}

.page-contact .contact-section .lede {
  margin: 0;
  max-width: 56ch;
  font-size: 0.96rem;
  line-height: 1.8;
  color: var(--mist);
}

/* ---------- 01 邮件要点 ---------- */
.page-contact .mail-guide {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(1.25rem, 3vw, 2rem);
  align-items: start;
}

.page-contact .mail-points {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--line-soft);
  border: 1.5px solid var(--line-soft);
}

.page-contact .mail-points li {
  position: relative;
  padding: 1rem 1.05rem 1rem 2.9rem;
  background: var(--contact-card-bg);
  transition: background-color 180ms ease-out;
}

.page-contact .mail-points li:hover {
  background: var(--contact-card-bg-soft);
}

.page-contact .point-num {
  position: absolute;
  left: 1.05rem;
  top: 1.05rem;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  color: var(--coral);
}

.page-contact .mail-points h3 {
  margin: 0 0 0.3rem;
  font-family: var(--font-display);
  font-size: 0.98rem;
  font-weight: 700;
  color: var(--cream);
}

.page-contact .mail-points p {
  margin: 0;
  font-size: 0.92rem;
  line-height: 1.72;
  color: var(--mist);
}

.page-contact .guide-visual {
  margin: 0;
  align-self: start;
}

.page-contact .guide-visual img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

/* ---------- 02 电话条 ---------- */
.page-contact .phone-band {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1.35rem;
  align-items: center;
  padding: clamp(1.2rem, 3vw, 1.9rem);
  background: linear-gradient(128deg, rgba(23, 59, 82, 0.92), rgba(3, 16, 26, 0.94));
  border-left: 3px solid var(--cyan);
}

.page-contact .band-label {
  margin: 0 0 0.4rem;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  color: var(--mist);
}

.page-contact .band-phone {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: clamp(1.25rem, 5vw, 2.3rem);
  font-weight: 700;
  letter-spacing: 0.01em;
  color: var(--glow);
  text-decoration: none;
  border-bottom: 2px solid var(--coral);
  padding-bottom: 0.14rem;
  transition: color 180ms ease-out;
}

.page-contact .band-phone:hover,
.page-contact .band-phone:focus-visible {
  color: var(--coral);
}

.page-contact .phone-rules {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.65rem;
}

.page-contact .phone-rules li {
  position: relative;
  padding-left: 1.25rem;
  font-size: 0.93rem;
  line-height: 1.72;
  color: var(--mist);
}

.page-contact .phone-rules li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.62rem;
  width: 8px;
  height: 2px;
  background: var(--cyan);
}

/* ---------- 03 地址 ---------- */
.page-contact .addr-block {
  display: grid;
  gap: 0.85rem;
  padding: clamp(1.15rem, 3vw, 1.8rem);
  background: var(--contact-card-bg-soft);
  border-left: 3px solid var(--clay);
}

.page-contact .addr-text {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(1.1rem, 2.8vw, 1.55rem);
  font-weight: 700;
  line-height: 1.45;
  letter-spacing: 0.01em;
  color: var(--cream);
}

.page-contact .addr-desc {
  margin: 0;
  max-width: 62ch;
  font-size: 0.93rem;
  line-height: 1.8;
  color: var(--mist);
}

/* ---------- 04 合作与反馈 ---------- */
.page-contact .feedback-grid {
  gap: 1rem;
}

.page-contact .feedback-card {
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
  padding: 1.15rem 1.2rem;
  background: var(--contact-card-bg);
  border-top: 2px solid var(--cyan);
  transition: transform 180ms ease-out, border-color 180ms ease-out, box-shadow 180ms ease-out;
}

.page-contact .feedback-card:hover {
  transform: translateY(-3px);
  border-top-color: var(--coral);
  box-shadow: var(--panel-shadow-lift);
}

.page-contact .feedback-card h3 {
  margin: 0;
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 700;
  color: var(--cream);
}

.page-contact .feedback-card p {
  margin: 0;
  font-size: 0.92rem;
  line-height: 1.74;
  color: var(--mist);
}

.page-contact .subject-hint {
  margin-top: auto;
  padding: 0.42rem 0.6rem;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  line-height: 1.5;
  color: var(--cyan);
  background: rgba(45, 226, 208, 0.07);
  border: 1px dashed rgba(45, 226, 208, 0.34);
  word-break: break-word;
}

.page-contact .team-line {
  margin: clamp(1.1rem, 3vw, 1.6rem) 0 0;
  padding: 0.85rem 1rem;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  line-height: 1.75;
  color: var(--mist);
  border-left: 2px solid var(--moss);
  background: rgba(127, 163, 122, 0.08);
}

/* ---------- 天际线收束 ---------- */
.page-contact .skyline-band {
  position: relative;
  margin-top: clamp(2.25rem, 6vw, 4rem);
  min-height: 260px;
  display: flex;
  align-items: flex-end;
  overflow: hidden;
  border-top: 1.5px solid var(--line);
  background: linear-gradient(180deg, var(--ink) 0%, var(--deep) 100%);
}

.page-contact .skyline-band > img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 70%;
  opacity: 0.4;
  filter: saturate(0.5) contrast(1.05);
  pointer-events: none;
}

.page-contact .skyline-inner {
  position: relative;
  z-index: 1;
  width: 100%;
  padding: clamp(2rem, 5vw, 3rem) 0 clamp(1.5rem, 4vw, 2.25rem);
  background: linear-gradient(180deg, rgba(3, 16, 26, 0) 0%, rgba(3, 16, 26, 0.88) 62%);
}

.page-contact .skyline-title {
  margin: 0 0 0.5rem;
  font-family: var(--font-display);
  font-size: clamp(1.25rem, 3vw, 1.8rem);
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--cream);
}

.page-contact .skyline-text {
  margin: 0 0 1rem;
  max-width: 56ch;
  font-size: 0.93rem;
  line-height: 1.78;
  color: var(--mist);
}

.page-contact .skyline-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
}

/* ---------- 断点 ---------- */
@media (min-width: 700px) {
  .page-contact .section-head {
    grid-template-columns: auto minmax(0, 1fr);
    gap: 1.4rem;
  }

  .page-contact .mail-points li {
    padding-left: 3.3rem;
  }
}

@media (min-width: 900px) {
  .page-contact .contact-hero {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: clamp(2rem, 4vw, 3.4rem);
  }

  .page-contact .contact-stack {
    margin-top: 2.6rem;
  }

  .page-contact .stack-card--addr {
    margin-left: 1.5rem;
  }

  .page-contact .stack-card--note {
    margin-left: 3rem;
  }

  .page-contact .mail-guide {
    grid-template-columns: minmax(0, 6fr) minmax(0, 5fr);
    gap: clamp(1.75rem, 4vw, 2.75rem);
  }

  .page-contact .phone-band {
    grid-template-columns: minmax(0, 4fr) minmax(0, 7fr);
    gap: 2.5rem;
  }

  .page-contact .skyline-band {
    min-height: 320px;
  }
}
<<<END>>>