/* ===== 联系我们 - 页面专属样式 ===== */
.page-contact {
  --contact-cut: 18px;
  --card-accent: var(--tech-blue);
  position: relative;
  background: var(--night-black);
  color: var(--cloud-white);
  font-family: var(--sans-font);
  line-height: 1.6;
  min-height: 60vh;
  overflow: hidden;
}

.page-contact a {
  color: var(--data-cyan);
  text-decoration: underline;
  text-decoration-color: rgba(0, 179, 214, 0.4);
  text-underline-offset: 4px;
  transition: color 0.25s ease, text-decoration-color 0.25s ease;
}

.page-contact a:hover {
  color: var(--volt-green);
  text-decoration-color: rgba(0, 230, 138, 0.6);
}

.page-contact :focus-visible {
  outline: 2px solid var(--volt-green);
  outline-offset: 3px;
}

/* 首屏区域 */
.page-contact__hero {
  position: relative;
  padding: 108px 20px 52px;
  background:
    linear-gradient(var(--grid-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-line) 1px, transparent 1px),
    radial-gradient(ellipse at 75% 25%, rgba(0, 99, 247, 0.22), transparent 58%),
    var(--night-black);
  background-size: 30px 30px, 30px 30px, auto, auto;
  border-bottom: 1px solid var(--steel-blue);
}

.page-contact__hero::after {
  content: "";
  position: absolute;
  right: 0;
  bottom: 0;
  width: 46%;
  height: 8px;
  background: linear-gradient(90deg, transparent, var(--volt-green), var(--tech-blue));
  z-index: 2;
}

.page-contact__hero-img {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.3;
  z-index: 0;
}

.page-contact__hero-content {
  position: relative;
  z-index: 1;
  max-width: var(--content-width);
  margin: 0 auto;
}

.page-contact__crumb {
  margin-bottom: 22px;
}

.page-contact__crumb ol {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  list-style: none;
  margin: 0;
  padding: 0;
  font-family: var(--mono-font);
  font-size: 0.78rem;
  color: var(--silver-gray);
}

.page-contact__crumb li + li::before {
  content: "/";
  color: var(--steel-blue);
  margin-right: 8px;
}

.page-contact__crumb a {
  color: var(--data-cyan);
  text-decoration: none;
}

.page-contact__crumb a:hover {
  color: var(--volt-green);
}

.page-contact__kicker {
  display: inline-block;
  margin-bottom: 14px;
  padding: 4px 12px;
  font-family: var(--mono-font);
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--volt-green);
  border: 1px solid rgba(0, 230, 138, 0.35);
  background: rgba(0, 230, 138, 0.05);
}

.page-contact h1 {
  margin: 0 0 18px;
  font-size: clamp(1.55rem, 4.6vw, 2.9rem);
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: -0.02em;
  max-width: 22em;
  color: var(--cloud-white);
}

.page-contact__hero-lead {
  max-width: 58ch;
  margin: 0 0 12px;
  font-size: 0.98rem;
  color: var(--silver-gray);
}

.page-contact__hero-sub {
  margin: 0;
  font-size: 0.86rem;
  color: var(--data-cyan);
  border-left: 2px solid var(--data-cyan);
  padding-left: 12px;
  max-width: 48ch;
  line-height: 1.7;
}

.page-contact__hero-tag {
  display: inline-block;
  margin-right: 10px;
  padding: 2px 8px;
  font-family: var(--mono-font);
  font-size: 0.68rem;
  letter-spacing: 0.12em;
  color: var(--night-black);
  background: var(--data-cyan);
  vertical-align: 2px;
}

/* 联系方式区 */
.page-contact__channels {
  position: relative;
  padding: 56px 20px 64px;
  background:
    linear-gradient(135deg, rgba(0, 99, 247, 0.09), transparent 38%),
    linear-gradient(315deg, rgba(0, 230, 138, 0.04), transparent 40%),
    var(--deep-space);
}

.page-contact__channels-inner {
  max-width: var(--content-width);
  margin: 0 auto;
}

.page-contact__section-title,
.page-contact__boundary h2,
.page-contact__business h2,
.page-contact__address h2 {
  margin: 0 0 10px;
  font-size: clamp(1.3rem, 2.6vw, 1.8rem);
  font-weight: 700;
  line-height: 1.25;
  letter-spacing: -0.01em;
  color: var(--cloud-white);
}

.page-contact__channels-lead {
  max-width: 56ch;
  margin: 0 0 34px;
  font-size: 0.92rem;
  color: var(--silver-gray);
}

.page-contact__channel-wrap {
  position: relative;
}

.page-contact__orbit {
  width: 120px;
  height: 120px;
  margin: 0 auto 24px;
}

.page-contact__orbit svg {
  display: block;
  width: 100%;
  height: 100%;
}

.page-contact__channel-grid {
  display: grid;
  gap: 18px;
}

.page-contact__card {
  --card-accent: var(--tech-blue);
  position: relative;
  z-index: 2;
  padding: 24px 22px;
  background: rgba(10, 14, 28, 0.88);
  border: 1px solid var(--steel-blue);
  border-top: 3px solid var(--card-accent);
  clip-path: polygon(0 0, calc(100% - var(--contact-cut)) 0, 100% var(--contact-cut), 100% 100%, var(--contact-cut) 100%, 0 calc(100% - var(--contact-cut)));
}

.page-contact__card::before {
  content: "";
  position: absolute;
  top: -1px;
  left: -1px;
  width: 72px;
  height: 5px;
  background: var(--card-accent);
  z-index: 1;
}

.page-contact__card--phone {
  --card-accent: var(--volt-green);
}

.page-contact__card--support {
  --card-accent: var(--tech-blue);
}

.page-contact__card--service {
  --card-accent: var(--violet);
}

.page-contact__card--hours {
  --card-accent: var(--alert-orange);
}

.page-contact__card-index {
  position: absolute;
  top: 18px;
  right: 20px;
  font-family: var(--mono-font);
  font-size: 0.8rem;
  color: var(--steel-blue);
  letter-spacing: 0.06em;
}

.page-contact__card-label {
  display: block;
  margin-bottom: 10px;
  font-family: var(--mono-font);
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--silver-gray);
}

.page-contact__card-value {
  display: block;
  font-family: var(--mono-font);
  font-size: 1.06rem;
  line-height: 1.4;
  color: var(--cloud-white);
  word-break: break-all;
}

.page-contact__card-value--link {
  display: inline-block;
  color: var(--volt-green);
  text-decoration: none;
  border-bottom: 1px dashed rgba(0, 230, 138, 0.4);
  transition: color 0.25s ease, border-color 0.25s ease;
}

.page-contact__card-value--link:hover {
  color: var(--cloud-white);
  border-color: var(--volt-green);
}

.page-contact__card-note {
  margin: 12px 0 0;
  font-size: 0.84rem;
  color: var(--silver-gray);
  line-height: 1.55;
}

.page-contact__select-all {
  cursor: text;
  -webkit-user-select: all;
  user-select: all;
  border-bottom: 1px dashed rgba(0, 179, 214, 0.5);
  padding-bottom: 2px;
}

.page-contact__select-all::after {
  content: "⧉";
  margin-left: 8px;
  color: var(--data-cyan);
  font-size: 0.82em;
  border: none;
}

.page-contact__timeline {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 8px;
  margin-top: 18px;
}

.page-contact__timeline-start,
.page-contact__timeline-end {
  font-family: var(--mono-font);
  font-size: 0.74rem;
  color: var(--silver-gray);
}

.page-contact__timeline-track {
  position: relative;
  height: 4px;
  background: linear-gradient(90deg, var(--alert-orange), var(--tech-blue) 55%, var(--volt-green));
}

.page-contact__timeline-track::before,
.page-contact__timeline-track::after {
  content: "";
  position: absolute;
  top: 50%;
  width: 9px;
  height: 9px;
  transform: translateY(-50%) rotate(45deg);
}

.page-contact__timeline-track::before {
  left: -1px;
  background: var(--alert-orange);
}

.page-contact__timeline-track::after {
  right: -1px;
  background: var(--volt-green);
}

/* 客服邮箱与支持边界 */
.page-contact__boundary {
  padding: 56px 20px;
  background:
    linear-gradient(90deg, transparent, rgba(0, 99, 247, 0.08), transparent),
    var(--night-black);
  border-top: 1px solid var(--steel-blue);
  border-bottom: 1px solid var(--steel-blue);
}

.page-contact__boundary-inner {
  max-width: 860px;
  margin: 0 auto;
}

.page-contact__boundary blockquote {
  margin: 24px 0 20px;
  padding: 20px 22px;
  border-left: 4px solid var(--tech-blue);
  background: rgba(16, 24, 38, 0.72);
  font-size: 0.96rem;
  color: var(--cloud-white);
  line-height: 1.8;
}

.page-contact__boundary-desc {
  margin: 0 0 12px;
  font-size: 0.9rem;
  color: var(--silver-gray);
}

.page-contact__scope-list {
  list-style: none;
  margin: 0 0 20px;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-contact__scope-list li {
  position: relative;
  padding-left: 22px;
  font-size: 0.9rem;
  color: var(--silver-gray);
  line-height: 1.6;
}

.page-contact__scope-list li::before {
  content: "▸";
  position: absolute;
  left: 0;
  color: var(--data-cyan);
}

.page-contact__boundary-help {
  font-size: 0.9rem;
  color: var(--cloud-white);
}

/* 商务与合作 */
.page-contact__business {
  padding: 56px 20px;
  background:
    linear-gradient(135deg, rgba(123, 97, 255, 0.1), transparent 42%),
    linear-gradient(315deg, rgba(0, 99, 247, 0.07), transparent 46%),
    var(--deep-space);
}

.page-contact__business-grid {
  max-width: var(--content-width);
  margin: 0 auto;
  display: grid;
  gap: 32px;
}

.page-contact__business-desc {
  margin: 0 0 8px;
  font-size: 0.92rem;
  color: var(--silver-gray);
}

.page-contact__business-mail {
  display: inline-block;
  margin: 8px 0 16px;
  font-family: var(--mono-font);
  font-size: 1.14rem;
  color: var(--violet);
  border-bottom: 1px dashed rgba(123, 97, 255, 0.5);
  padding-bottom: 2px;
}

.page-contact__business-mail::after {
  content: "⧉";
  margin-left: 8px;
  color: var(--data-cyan);
  font-size: 0.82em;
  border: none;
}

.page-contact__business-note {
  margin: 0;
  max-width: 58ch;
  font-size: 0.9rem;
  color: var(--silver-gray);
  line-height: 1.7;
}

.page-contact__business-meta {
  border-left: 2px solid var(--steel-blue);
  padding-left: 20px;
  font-size: 0.9rem;
  color: var(--silver-gray);
  line-height: 1.8;
}

.page-contact__business-meta p {
  margin: 0 0 10px;
}

.page-contact__business-meta p::before {
  content: "//";
  margin-right: 8px;
  font-family: var(--mono-font);
  font-size: 0.78em;
  color: var(--violet);
}

/* 地图与地址 */
.page-contact__address {
  padding: 56px 20px 72px;
  background:
    linear-gradient(var(--grid-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-line) 1px, transparent 1px),
    var(--night-black);
  background-size: 38px 38px, 38px 38px;
}

.page-contact__address-grid {
  max-width: var(--content-width);
  margin: 0 auto;
  display: grid;
  gap: 28px;
}

.page-contact__address-line {
  margin: 16px 0;
  padding: 18px 20px;
  font-family: var(--mono-font);
  font-size: 1.04rem;
  line-height: 1.6;
  color: var(--cloud-white);
  background: rgba(16, 24, 38, 0.82);
  border: 1px solid var(--steel-blue);
  position: relative;
}

.page-contact__address-line::before {
  content: "";
  position: absolute;
  top: -1px;
  right: -1px;
  width: 28px;
  height: 28px;
  border-top: 3px solid var(--tech-blue);
  border-right: 3px solid var(--tech-blue);
}

.page-contact__address-note {
  margin: 0;
  max-width: 46ch;
  font-size: 0.85rem;
  color: var(--silver-gray);
  line-height: 1.7;
}

.page-contact__address-figure {
  margin: 0;
}

.page-contact__address-figure img {
  display: block;
  width: 100%;
  height: auto;
  border: 1px solid var(--steel-blue);
  background: var(--deep-space);
}

.page-contact__address-figure figcaption {
  margin-top: 10px;
  font-family: var(--mono-font);
  font-size: 0.74rem;
  letter-spacing: 0.1em;
  color: var(--silver-gray);
}

/* 响应式布局 */
@media (min-width: 640px) {
  .page-contact__channel-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (min-width: 900px) {
  .page-contact__hero {
    padding: 150px 32px 72px;
  }

  .page-contact__channels {
    padding: 72px 32px 84px;
  }

  .page-contact__boundary {
    padding: 72px 32px;
  }

  .page-contact__business {
    padding: 72px 32px;
    background:
      linear-gradient(135deg, rgba(123, 97, 255, 0.1), transparent 38%),
      linear-gradient(315deg, rgba(0, 99, 247, 0.07), transparent 42%),
      var(--deep-space);
  }

  .page-contact__address {
    padding: 72px 32px 96px;
  }

  .page-contact__channel-wrap {
    padding: 42px 0;
  }

  .page-contact__orbit {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 240px;
    height: 240px;
    margin: 0;
    transform: translate(-50%, -50%);
    z-index: 1;
    pointer-events: none;
  }

  .page-contact__channel-grid {
    gap: 28px;
  }

  .page-contact__card {
    padding: 30px 28px;
  }

  .page-contact__business-grid {
    grid-template-columns: 1.4fr 1fr;
    align-items: start;
    gap: 48px;
  }

  .page-contact__address-grid {
    grid-template-columns: 1fr 1fr;
    align-items: center;
    gap: 48px;
  }
}