.page-contact {
  position: relative;
  width: 100%;
  max-width: var(--content-max);
  margin-inline: auto;
  padding-inline: clamp(1rem, 3vw, 2.5rem);
  padding-bottom: clamp(2.5rem, 6vw, 4rem);
  --contact-grid-line: rgba(37, 48, 65, 0.7);
}

.page-contact .breadcrumb {
  margin: 0 0 clamp(1.25rem, 3vw, 2.25rem);
  font-size: 0.8125rem;
}

.contact-hero {
  position: relative;
  display: grid;
  align-items: center;
  min-height: 320px;
  margin-bottom: clamp(2rem, 5vw, 3.5rem);
  padding: clamp(1.5rem, 4vw, 3rem);
  background: var(--bg-deep);
  border: 2px solid var(--border-color);
  overflow: hidden;
}

.contact-map {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.contact-map img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: grayscale(0.8) contrast(1.1) brightness(0.42);
}

.contact-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  background:
    linear-gradient(100deg, rgba(10, 14, 26, 0.97) 0%, rgba(10, 14, 26, 0.74) 58%, rgba(10, 14, 26, 0.42) 100%),
    repeating-linear-gradient(-45deg, transparent 0 14px, var(--contact-grid-line) 14px 15px);
  pointer-events: none;
}

.contact-hero-inner {
  position: relative;
  z-index: 2;
  max-width: 44rem;
}

.contact-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  margin: 0 0 0.75rem;
  color: var(--accent-blue);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.contact-eyebrow::before {
  content: "";
  width: 2rem;
  height: 2px;
  background: var(--accent-blue);
}

.contact-hero h1 {
  margin: 0 0 0.35rem;
  font-family: var(--font-heading);
  font-size: clamp(2.8rem, 9vw, 5.5rem);
  line-height: 0.92;
  letter-spacing: 0.015em;
  text-transform: uppercase;
  color: var(--text-primary);
}

.contact-hero-sub {
  margin: 0 0 1rem;
  font-size: clamp(1.125rem, 3vw, 1.75rem);
  font-weight: 700;
  color: var(--accent-orange);
}

.contact-hero-desc {
  margin: 0;
  max-width: 34rem;
  color: var(--text-secondary);
  line-height: 1.7;
  font-size: 0.95rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1.5rem;
}

.contact-channels {
  margin-bottom: clamp(2.5rem, 6vw, 4rem);
}

.contact-channels > h2,
.contact-promise > h2,
.contact-categories > h2 {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin: 0 0 0.25rem;
  font-family: var(--font-heading);
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: 900;
  letter-spacing: 0.03em;
  text-transform: uppercase;
}

.contact-channels > h2::after,
.contact-promise > h2::after,
.contact-categories > h2::after {
  content: "";
  flex: 0 1 auto;
  width: 26%;
  min-width: 3rem;
  height: 4px;
  background: var(--gradient-accent);
}

.channels-grid {
  display: grid;
  gap: 1.25rem;
  margin-top: 1.5rem;
}

.channel-card {
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  min-height: 230px;
  padding: clamp(1.375rem, 3vw, 2rem);
  background: var(--bg-panel);
  border: 2px solid var(--border-color);
  box-shadow: var(--shadow-panel);
  overflow: hidden;
}

.channel-card::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 5px;
}

.channel-email::before {
  background: var(--accent-blue);
}

.channel-phone::before {
  background: var(--accent-orange);
}

.channel-card::after {
  content: "";
  position: absolute;
  right: -32px;
  top: -32px;
  width: 80px;
  height: 80px;
  border: 12px solid transparent;
  border-right-color: rgba(255, 255, 255, 0.03);
  border-top-color: rgba(255, 255, 255, 0.03);
}

.channel-tag {
  position: absolute;
  top: 1rem;
  right: 1rem;
  padding: 0.25rem 0.625rem;
  border: 1px solid var(--border-color);
  background: var(--bg-deep);
  color: var(--text-secondary);
  font-size: 0.6875rem;
  font-weight: 700;
  letter-spacing: 0.12em;
}

.channel-email .channel-tag {
  color: var(--accent-blue);
  border-color: rgba(0, 229, 255, 0.5);
}

.channel-phone .channel-tag {
  color: var(--accent-orange);
  border-color: rgba(255, 106, 0, 0.5);
}

.channel-card h3 {
  margin: 0 0 0.25rem;
  font-size: 1.375rem;
  font-weight: 700;
}

.channel-value {
  margin: 0 0 0.5rem;
  font-size: clamp(1.25rem, 2.6vw, 1.75rem);
  font-weight: 700;
  word-break: break-all;
}

.channel-email .channel-value {
  color: var(--accent-blue);
}

.channel-phone .channel-value {
  color: var(--accent-orange);
}

.channel-note {
  margin: 0 0 1.25rem;
  color: var(--text-secondary);
  font-size: 0.875rem;
  line-height: 1.6;
}

.channel-action {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.brand-mail-note {
  margin: 1.25rem 0 0;
  padding: 0.9rem 1.25rem;
  border: 1px dashed rgba(0, 229, 255, 0.35);
  background: rgba(0, 229, 255, 0.05);
  color: var(--text-secondary);
  font-size: 0.875rem;
  line-height: 1.7;
}

.brand-mail-note a {
  color: var(--accent-blue);
  font-weight: 700;
  text-decoration: none;
}

.brand-mail-note a:hover {
  text-decoration: underline;
}

.contact-location {
  display: grid;
  gap: 1.5rem;
  align-items: center;
  margin-bottom: clamp(2.5rem, 6vw, 4rem);
}

.contact-address {
  padding: clamp(1.5rem, 3vw, 2.25rem);
  background: var(--bg-panel);
  border: 2px solid var(--border-color);
  border-left: 6px solid var(--accent-green);
}

.contact-address address {
  font-style: normal;
  font-size: clamp(1.1rem, 2.6vw, 1.6rem);
  font-weight: 700;
  line-height: 1.35;
  margin: 0 0 0.75rem;
  color: var(--text-primary);
}

.contact-address > p:not(.contact-eyebrow) {
  margin-bottom: 1.25rem;
  color: var(--text-secondary);
  font-size: 0.9rem;
  line-height: 1.7;
}

.contact-assist {
  margin: 0;
}

.contact-assist img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 420px;
  border: 2px solid var(--border-color);
  background: var(--bg-panel);
  clip-path: polygon(0 0, calc(100% - 18px) 0, 100% 18px, 100% 100%, 18px 100%, 0 calc(100% - 18px));
}

.contact-assist figcaption {
  margin-top: 0.5rem;
  text-align: right;
  color: var(--text-secondary);
  font-size: 0.75rem;
  letter-spacing: 0.1em;
}

.contact-promise {
  margin-bottom: clamp(2.5rem, 6vw, 4rem);
  padding: clamp(1.5rem, 3vw, 2rem) 0;
  border-block: 3px solid var(--border-color);
}

.promise-intro {
  margin: 0.5rem 0 0;
  color: var(--text-secondary);
  font-size: 0.9rem;
}

.promise-grid {
  display: grid;
  gap: 1.25rem;
  margin-top: 1.5rem;
}

.promise-item {
  position: relative;
  padding: 1.5rem 1.375rem 1.625rem;
  background: var(--bg-panel);
  border: 1px solid var(--border-color);
  overflow: hidden;
}

.promise-item::after {
  content: "";
  position: absolute;
  right: 0;
  bottom: 0;
  border-width: 0 0 3px 42px;
  border-style: solid;
  border-color: transparent transparent var(--accent-blue) transparent;
}

.promise-item:nth-child(2)::after {
  border-bottom-color: var(--accent-orange);
}

.promise-item:nth-child(3)::after {
  border-bottom-color: var(--accent-green);
}

.promise-item:nth-child(4)::after {
  border-bottom-color: var(--accent-blue);
}

.promise-num {
  font-family: var(--font-heading);
  font-size: clamp(2rem, 5vw, 3.25rem);
  line-height: 1;
  color: var(--accent-blue);
}

.promise-item:nth-child(2) .promise-num {
  color: var(--accent-orange);
}

.promise-item:nth-child(3) .promise-num {
  color: var(--accent-green);
}

.promise-item h3 {
  margin: 0.75rem 0 0.375rem;
  font-size: 1rem;
  font-weight: 700;
}

.promise-item p {
  margin: 0;
  color: var(--text-secondary);
  font-size: 0.85rem;
  line-height: 1.6;
}

.contact-categories {
  margin-bottom: clamp(2.5rem, 6vw, 4rem);
}

.categories-intro {
  margin: 0.5rem 0 1.5rem;
  color: var(--text-secondary);
  font-size: 0.9rem;
}

.category-grid {
  display: grid;
  gap: 1.25rem;
}

.category-card {
  position: relative;
  display: flex;
  flex-direction: column;
  padding: 1.5rem 1.375rem;
  background: var(--bg-panel);
  border: 2px solid var(--border-color);
  transition: transform 0.35s var(--ease-out), border-color 0.35s var(--ease-out);
}

.category-card:hover {
  transform: translateY(-5px);
  border-color: var(--accent-blue);
}

.category-num {
  margin-bottom: 0.75rem;
  font-family: var(--font-heading);
  font-size: 2.5rem;
  line-height: 1;
  color: rgba(255, 106, 0, 0.55);
}

.category-card h3 {
  margin: 0 0 0.5rem;
  font-size: 1.05rem;
  font-weight: 700;
}

.category-card p {
  flex: 1;
  margin: 0 0 1rem;
  color: var(--text-secondary);
  font-size: 0.85rem;
  line-height: 1.65;
}

.category-link {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  color: var(--accent-blue);
  font-size: 0.85rem;
  font-weight: 700;
  text-decoration: none;
}

.category-link::after {
  content: "→";
  transition: transform 0.25s var(--ease-out);
}

.category-link:hover::after {
  transform: translateX(4px);
}

.contact-trust {
  max-width: 860px;
  margin: 0 auto;
  padding: 1.375rem 1.5rem;
  border: 1px solid rgba(57, 255, 20, 0.4);
  border-left-width: 6px;
  background: linear-gradient(90deg, rgba(57, 255, 20, 0.07), transparent 60%);
}

.contact-trust::before {
  content: "数据承诺";
  display: inline-block;
  margin-bottom: 0.4rem;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent-green);
}

.contact-trust p {
  margin: 0;
  color: var(--text-secondary);
  font-size: 0.9rem;
  line-height: 1.7;
}

@media (min-width: 720px) {
  .contact-hero {
    min-height: 380px;
  }

  .contact-hero-inner {
    padding-left: clamp(1rem, 4vw, 3rem);
  }

  .channels-grid {
    grid-template-columns: 1.25fr 0.9fr;
    gap: 1.75rem;
  }

  .contact-location {
    grid-template-columns: 1.1fr 0.85fr;
    gap: 2.5rem;
  }

  .contact-location .contact-assist {
    transform: translateY(18px);
  }

  .promise-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 1.75rem;
  }

  .category-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 1.25rem;
  }
}

@media (min-width: 1080px) {
  .contact-hero {
    min-height: 460px;
  }

  .contact-hero h1 {
    font-size: 5.5rem;
  }

  .promise-grid {
    grid-template-columns: repeat(4, 1fr);
  }

  .category-grid {
    grid-template-columns: repeat(4, 1fr);
    gap: 1.75rem;
  }

  .contact-promise .promise-item:nth-child(2) {
    transform: translateY(14px);
  }
}