.page-contact {
  --contact-glow: 0 0 18px rgba(57, 255, 20, 0.25);
  --contact-card-border: rgba(57, 255, 20, 0.15);
  --contact-card-bg: rgba(15, 23, 42, 0.85);
  --contact-deco-color: rgba(57, 255, 20, 0.08);
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 2.5rem;
  padding: 0 1rem 3rem;
  max-width: var(--w-max, 1280px);
  margin: 0 auto;
  color: var(--c-text-primary, #F1F5F9);
  font-family: var(--font-body, 'Inter', system-ui, sans-serif);
  overflow-x: hidden;
}

/* ── 面包屑 ── */
.contact-breadcrumb {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.8rem;
  color: var(--c-text-secondary, #94A3B8);
  padding: 1.25rem 0 0.25rem;
  letter-spacing: 0.02em;
}
.contact-breadcrumb a {
  color: var(--c-text-secondary, #94A3B8);
  text-decoration: none;
  transition: color 0.25s;
  position: relative;
}
.contact-breadcrumb a::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: -2px;
  width: 0;
  height: 2px;
  background: var(--c-accent-orange, #FF6B35);
  transition: width 0.3s;
}
.contact-breadcrumb a:hover,
.contact-breadcrumb a:focus-visible {
  color: var(--c-accent-orange, #FF6B35);
}
.contact-breadcrumb a:hover::after,
.contact-breadcrumb a:focus-visible::after {
  width: 100%;
}
.contact-breadcrumb [aria-current="page"] {
  color: var(--c-text-primary, #F1F5F9);
  font-weight: 500;
}
.breadcrumb-sep {
  font-size: 0.6rem;
  color: var(--c-accent-green, #39FF14);
  opacity: 0.7;
}

/* ── 首屏 Hero ── */
.contact-hero {
  text-align: center;
  padding: 1.5rem 0 1rem;
  position: relative;
}
.contact-hero::before {
  content: '';
  position: absolute;
  top: -40%;
  left: -20%;
  right: -20%;
  height: 180%;
  background: radial-gradient(ellipse at 50% 30%, rgba(26, 58, 107, 0.20) 0%, transparent 70%);
  pointer-events: none;
  z-index: 0;
}
.contact-hero-title {
  font-family: var(--font-heading, 'Montserrat', system-ui, sans-serif);
  font-weight: 800;
  font-style: italic;
  font-size: clamp(2.8rem, 10vw, 5.5rem);
  line-height: 1.05;
  letter-spacing: -0.02em;
  color: var(--c-text-primary, #F1F5F9);
  margin: 0;
  position: relative;
  z-index: 1;
  text-shadow: 0 2px 40px rgba(57, 255, 20, 0.08);
}
.contact-hero-title::after {
  content: '';
  display: block;
  width: 4.5rem;
  height: 4px;
  background: var(--grad-green, linear-gradient(135deg, #39FF14, #2ad80f));
  margin: 0.75rem auto 0;
  border-radius: 4px;
  box-shadow: 0 0 20px rgba(57, 255, 20, 0.3);
}
.contact-hero-sub {
  font-size: clamp(1rem, 2.5vw, 1.35rem);
  color: var(--c-text-secondary, #94A3B8);
  margin: 0.75rem 0 1.5rem;
  letter-spacing: 0.04em;
  position: relative;
  z-index: 1;
}
.contact-hero-deco {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  margin-top: 0.25rem;
  position: relative;
  z-index: 1;
}
.deco-line {
  display: block;
  width: 3rem;
  height: 1px;
  background: var(--contact-deco-color);
}
.deco-dot {
  display: block;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--c-accent-green, #39FF14);
  opacity: 0.4;
}

/* ── 联系方式卡片区 ── */
.contact-channels {
  position: relative;
  z-index: 1;
}
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.channel-cards {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.contact-card {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  padding: 1.25rem 1.25rem 1.25rem 1rem;
  background: var(--contact-card-bg);
  border: 1px solid var(--contact-card-border);
  border-radius: var(--radius-md, 12px);
  backdrop-filter: blur(4px);
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.25);
  transition: transform 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
  position: relative;
  overflow: hidden;
}
.contact-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 3px;
  height: 100%;
  background: var(--grad-green, linear-gradient(135deg, #39FF14, #2ad80f));
  opacity: 0;
  transition: opacity 0.3s ease;
}
.contact-card:hover,
.contact-card:focus-within {
  transform: translateY(-3px);
  border-color: rgba(57, 255, 20, 0.35);
  box-shadow: var(--contact-glow), 0 8px 32px rgba(0, 0, 0, 0.35);
}
.contact-card:hover::before,
.contact-card:focus-within::before {
  opacity: 1;
}

.card-icon-wrap {
  flex-shrink: 0;
  width: 64px;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm, 6px);
  background: rgba(57, 255, 20, 0.06);
  border: 1px solid rgba(57, 255, 20, 0.12);
  padding: 6px;
  transition: background 0.3s, border-color 0.3s;
}
.contact-card:hover .card-icon-wrap,
.contact-card:focus-within .card-icon-wrap {
  background: rgba(57, 255, 20, 0.12);
  border-color: rgba(57, 255, 20, 0.3);
}
.card-icon {
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: contain;
  display: block;
}

.card-body {
  flex: 1;
  min-width: 0;
}
.card-label {
  font-family: var(--font-heading, 'Montserrat', system-ui, sans-serif);
  font-weight: 700;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--c-accent-green, #39FF14);
  margin: 0 0 0.2rem;
  opacity: 0.85;
}
.card-value {
  font-size: clamp(0.95rem, 2vw, 1.1rem);
  line-height: 1.5;
  word-break: break-word;
}
.card-link {
  color: var(--c-text-primary, #F1F5F9);
  text-decoration: none;
  border-bottom: 1px dashed var(--c-accent-green, #39FF14);
  transition: color 0.25s, border-color 0.25s;
}
.card-link:hover,
.card-link:focus-visible {
  color: var(--c-accent-orange, #FF6B35);
  border-bottom-color: var(--c-accent-orange, #FF6B35);
}
.card-address-text {
  color: var(--c-text-secondary, #94A3B8);
  margin: 0;
}
.card-hint {
  font-size: 0.75rem;
  color: var(--c-text-secondary, #94A3B8);
  margin: 0.25rem 0 0;
  opacity: 0.7;
  font-family: var(--font-mono, 'Fira Code', monospace);
  letter-spacing: 0.01em;
}

/* ── 客服备注 ── */
.contact-service {
  position: relative;
  z-index: 1;
  margin-top: 0.5rem;
}
.service-inner {
  background: rgba(11, 26, 46, 0.55);
  border: 1px solid rgba(57, 255, 20, 0.08);
  border-radius: var(--radius-lg, 20px);
  padding: 1.5rem 1.25rem;
  backdrop-filter: blur(6px);
  box-shadow: 0 4px 32px rgba(0, 0, 0, 0.2);
}
.service-title {
  font-family: var(--font-heading, 'Montserrat', system-ui, sans-serif);
  font-weight: 700;
  font-size: 1.1rem;
  margin: 0 0 1rem;
  display: flex;
  align-items: center;
  gap: 0.6rem;
  color: var(--c-text-primary, #F1F5F9);
}
.service-title::before {
  content: '';
  display: inline-block;
  width: 6px;
  height: 1.3em;
  background: var(--grad-green, linear-gradient(135deg, #39FF14, #2ad80f));
  border-radius: 4px;
}
.service-grid {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}
.service-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.6rem 0;
}
.service-icon {
  flex-shrink: 0;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: rgba(57, 255, 20, 0.08);
  border: 1px solid rgba(57, 255, 20, 0.15);
  position: relative;
}
.service-icon-mail::after {
  content: '✉';
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.85rem;
  color: var(--c-accent-green, #39FF14);
}
.service-icon-clock::after {
  content: '⏱';
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.85rem;
  color: var(--c-accent-green, #39FF14);
}
.service-text {
  display: flex;
  flex-direction: column;
  gap: 0.1rem;
}
.service-label {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--c-text-secondary, #94A3B8);
  opacity: 0.8;
}
.service-value {
  font-size: 0.95rem;
  color: var(--c-text-primary, #F1F5F9);
  text-decoration: none;
}
.service-value a {
  color: inherit;
  text-decoration: none;
  border-bottom: 1px dashed rgba(255, 255, 255, 0.15);
  transition: border-color 0.25s, color 0.25s;
}
.service-value a:hover,
.service-value a:focus-visible {
  color: var(--c-accent-orange, #FF6B35);
  border-bottom-color: var(--c-accent-orange, #FF6B35);
}
.service-note {
  font-size: 0.8rem;
  color: var(--c-text-secondary, #94A3B8);
  margin: 0.75rem 0 1rem;
  padding: 0.5rem 0.75rem;
  background: rgba(57, 255, 20, 0.04);
  border-left: 2px solid rgba(57, 255, 20, 0.2);
  border-radius: 0 var(--radius-sm, 6px) var(--radius-sm, 6px) 0;
}
.service-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
}
.btn-sm {
  font-size: 0.78rem;
  padding: 0.5rem 1.1rem;
}

/* ── 底部抽象图 ── */
.contact-bottom-graphic {
  position: relative;
  width: 100%;
  max-width: 100%;
  border-radius: var(--radius-lg, 20px);
  overflow: hidden;
  margin: 0.5rem 0 0;
  z-index: 0;
}
.bottom-graphic-img {
  width: 100%;
  height: auto;
  max-height: 260px;
  object-fit: cover;
  display: block;
  opacity: 0.7;
  transition: opacity 0.5s;
}
.bottom-graphic-img:hover {
  opacity: 0.9;
}
.graphic-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 40%, rgba(11, 26, 46, 0.6) 100%);
  pointer-events: none;
}

/* ── 返回首页 ── */
.contact-return {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.85rem;
  padding: 1.25rem 0 0.5rem;
  text-align: center;
  position: relative;
  z-index: 1;
}
.return-divider {
  display: block;
  width: 1px;
  height: 1.4rem;
  background: rgba(57, 255, 20, 0.2);
}
.return-tagline {
  font-size: 0.85rem;
  color: var(--c-text-secondary, #94A3B8);
  font-style: italic;
  letter-spacing: 0.02em;
}

/* ── 桌面端布局 (≥768px) ── */
@media (min-width: 768px) {
  .page-contact {
    padding: 0 2rem 4rem;
    gap: 3rem;
  }

  .contact-breadcrumb {
    padding-top: 1.5rem;
    font-size: 0.85rem;
  }

  .contact-hero {
    padding: 2rem 0 1.5rem;
  }
  .contact-hero-title::after {
    width: 6rem;
    height: 5px;
  }
  .deco-line {
    width: 5rem;
  }

  .channel-cards {
    display: grid;
    grid-template-columns: 1fr 1fr;
    grid-template-rows: auto auto;
    gap: 1.5rem;
  }
  .card-email {
    grid-column: 1 / 2;
    grid-row: 1 / 2;
    transform: translateX(0);
  }
  .card-phone {
    grid-column: 2 / 3;
    grid-row: 1 / 3;
    align-self: center;
    transform: translateY(1.5rem);
  }
  .card-address {
    grid-column: 1 / 2;
    grid-row: 2 / 3;
    transform: translateX(1.5rem);
  }
  .contact-card {
    padding: 1.5rem 1.5rem 1.5rem 1.25rem;
  }
  .card-icon-wrap {
    width: 72px;
    height: 72px;
  }
  .card-label {
    font-size: 0.85rem;
  }

  .service-inner {
    padding: 2rem 2rem 1.75rem;
  }
  .service-grid {
    flex-direction: row;
    gap: 2.5rem;
  }
  .service-title {
    font-size: 1.25rem;
  }

  .contact-bottom-graphic {
    margin-top: 0.5rem;
  }
  .bottom-graphic-img {
    max-height: 320px;
  }

  .contact-return {
    padding-top: 1.5rem;
    gap: 1rem;
  }
}

/* ── 桌面宽屏 (≥1024px) ── */
@media (min-width: 1024px) {
  .page-contact {
    padding: 0 3rem 5rem;
    gap: 3.5rem;
  }

  .contact-hero {
    padding: 3rem 0 2rem;
  }
  .contact-hero-title {
    font-size: clamp(4rem, 8vw, 6rem);
  }
  .contact-hero-title::after {
    width: 7rem;
  }

  .channel-cards {
    grid-template-columns: 1fr 1.2fr 1fr;
    grid-template-rows: 1fr 1fr;
    gap: 1.75rem;
  }
  .card-email {
    grid-column: 1 / 2;
    grid-row: 1 / 2;
    transform: translateX(0) translateY(0);
  }
  .card-phone {
    grid-column: 2 / 3;
    grid-row: 1 / 3;
    transform: translateY(0);
    align-self: stretch;
  }
  .card-address {
    grid-column: 3 / 4;
    grid-row: 2 / 3;
    transform: translateX(0) translateY(-1.5rem);
  }
  .contact-card {
    padding: 1.75rem 1.75rem 1.75rem 1.5rem;
  }
  .card-icon-wrap {
    width: 80px;
    height: 80px;
  }

  .service-inner {
    padding: 2.25rem 2.5rem 2rem;
    display: grid;
    grid-template-columns: 1fr 1fr;
    grid-template-rows: auto auto;
    gap: 0.75rem 2rem;
  }
  .service-title {
    grid-column: 1 / -1;
    grid-row: 1 / 2;
    margin-bottom: 0.25rem;
  }
  .service-grid {
    grid-column: 1 / 2;
    grid-row: 2 / 3;
    flex-direction: column;
    gap: 0.5rem;
  }
  .service-note {
    grid-column: 2 / 3;
    grid-row: 2 / 3;
    margin: 0;
    align-self: start;
  }
  .service-links {
    grid-column: 1 / -1;
    grid-row: 3 / 4;
    justify-content: flex-end;
    padding-top: 0.5rem;
  }

  .bottom-graphic-img {
    max-height: 400px;
  }

  .contact-return {
    gap: 1.25rem;
    padding-top: 2rem;
  }
}

/* ── 超大屏 (≥1440px) ── */
@media (min-width: 1440px) {
  .page-contact {
    padding: 0 4rem 6rem;
  }
  .channel-cards {
    gap: 2rem;
  }
  .service-inner {
    padding: 2.5rem 3rem;
  }
}
</style>
</main>