/* ======================================================
   联系入口 Contact 页面专属样式
   作用域：.page-contact
   ====================================================== */

.page-contact {
  position: relative;
  padding-bottom: 5rem;
  background-color: var(--color-bg);
  background-image:
    linear-gradient(rgba(0, 168, 255, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 168, 255, 0.03) 1px, transparent 1px);
  background-size: 44px 44px;
}

/* ---------- 面包屑 ---------- */
.page-contact .breadcrumbs {
  padding-top: 1.5rem;
}

.page-contact .breadcrumbs ol {
  display: flex;
  flex-wrap: wrap;
  list-style: none;
  margin: 0;
  padding: 0;
  gap: 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--color-dim);
}

.page-contact .breadcrumbs li {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.page-contact .breadcrumbs li + li::before {
  content: "/";
  color: var(--color-border);
}

.page-contact .breadcrumbs a {
  color: var(--color-dim);
  text-decoration: none;
  transition: color 0.2s ease;
}

.page-contact .breadcrumbs a:hover,
.page-contact .breadcrumbs a:focus-visible,
.page-contact .breadcrumbs a[aria-current="page"] {
  color: var(--color-blue);
}

/* ---------- 首屏 Hero ---------- */
.page-contact .contact-hero {
  padding-top: 2.5rem;
  padding-bottom: 2rem;
  border-bottom: 1px solid var(--color-border);
}

.page-contact .contact-hero-grid {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 1.25rem;
  flex-wrap: wrap;
}

.page-contact .page-kicker {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-blue);
  margin-bottom: 0.75rem;
}

.page-contact .contact-hero h1 {
  font-family: var(--font-display);
  font-size: clamp(2rem, 5vw, 3.5rem);
  line-height: 1.08;
  font-weight: 800;
  letter-spacing: -0.02em;
  margin: 0;
  color: var(--color-text);
}

.page-contact .hero-en {
  display: block;
  margin-top: 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  font-weight: 400;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-dim);
}

.page-contact .contact-edition {
  display: flex;
  flex-direction: column;
  gap: 0.125rem;
  border: 1px solid rgba(255, 215, 0, 0.28);
  background: rgba(255, 215, 0, 0.06);
  border-radius: 0.375rem;
  padding: 0.625rem 0.875rem;
  text-align: right;
  min-width: 9.75rem;
}

.page-contact .contact-edition-label {
  font-family: var(--font-mono);
  font-size: 0.625rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-dim);
}

.page-contact .contact-edition-value {
  font-family: var(--font-mono);
  font-size: 1rem;
  font-weight: 700;
  color: var(--color-gold);
}

.page-contact .page-lead {
  margin-top: 1.25rem;
  max-width: 84ch;
  color: var(--color-dim);
  line-height: 1.75;
  font-size: 0.9375rem;
}

/* ---------- 数据流分隔 ---------- */
.page-contact .dataflow {
  position: relative;
  height: 2px;
  margin: 2rem 0;
  background: linear-gradient(90deg, var(--color-blue), var(--color-red) 55%, transparent);
  opacity: 0.45;
}

.page-contact .dataflow::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 12px;
  height: 100%;
  background: var(--color-gold);
  opacity: 0.8;
}

/* ---------- 区块基础 ---------- */
.page-contact .section {
  margin-top: 3.25rem;
}

.page-contact .section-head {
  display: flex;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 0.75rem;
  border-bottom: 1px solid var(--color-border);
  padding-bottom: 0.75rem;
  margin-bottom: 1.75rem;
}

.page-contact .section-index {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--color-blue);
  letter-spacing: 0.06em;
}

.page-contact .section-kicker {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--color-dim);
}

.page-contact .section-title {
  margin: 0;
  font-family: var(--font-display);
  font-size: 1.625rem;
  font-weight: 700;
  line-height: 1.2;
  color: var(--color-text);
}

/* ---------- 客服渠道 ---------- */
.page-contact .channels-layout {
  display: grid;
  gap: 1.75rem;
  align-items: center;
}

.page-contact .channels-media {
  margin: 0;
}

.page-contact .channels-media .media-frame {
  overflow: hidden;
  border: 1px solid var(--color-border);
  border-radius: 0.5rem;
}

.page-contact .channels-media .media-frame img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  aspect-ratio: 2 / 1;
}

.page-contact .frame-caption {
  display: block;
  margin-top: 0.5rem;
  text-align: right;
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.08em;
  color: var(--color-dim);
}

.page-contact .channels-list {
  display: grid;
  gap: 1rem;
}

.page-contact .channel-card {
  position: relative;
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  padding: 1.25rem 1.5rem 1.25rem 1.25rem;
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: 0.5rem;
  overflow: hidden;
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.18);
  transition: border-color 0.25s ease, box-shadow 0.25s ease, transform 0.25s ease;
}

.page-contact .channel-card::after {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 3px;
  height: 100%;
  background: var(--color-blue);
  opacity: 0;
  transition: opacity 0.25s ease;
}

.page-contact .channel-card--phone::after {
  background: var(--color-red);
}

.page-contact .channel-card:hover,
.page-contact .channel-card:focus-within {
  border-color: var(--color-blue);
  box-shadow: 0 6px 24px rgba(0, 168, 255, 0.12), 0 0 0 1px rgba(0, 168, 255, 0.2);
  transform: translateY(-2px);
  background-image: linear-gradient(135deg, rgba(0, 168, 255, 0.08), transparent 55%);
}

.page-contact .channel-card--phone:hover,
.page-contact .channel-card--phone:focus-within {
  border-color: var(--color-red);
  box-shadow: 0 6px 24px rgba(255, 46, 63, 0.12), 0 0 0 1px rgba(255, 46, 63, 0.18);
}

.page-contact .channel-card:hover::after,
.page-contact .channel-card:focus-within::after {
  opacity: 1;
}

.page-contact .channel-icon {
  flex-shrink: 0;
  width: 2.75rem;
  height: 2.75rem;
  border-radius: 0.375rem;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0, 168, 255, 0.1);
  border: 1px solid rgba(0, 168, 255, 0.3);
}

.page-contact .channel-card--phone .channel-icon {
  background: rgba(255, 46, 63, 0.08);
  border-color: rgba(255, 46, 63, 0.28);
}

.page-contact .channel-icon svg {
  width: 1.5rem;
  height: 1.5rem;
}

.page-contact .channel-body {
  flex: 1;
  min-width: 0;
}

.page-contact .channel-label {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-dim);
}

.page-contact .channel-value {
  display: inline-block;
  margin: 0.25rem 0 0.375rem;
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--color-text);
  text-decoration: none;
  overflow-wrap: break-word;
  word-break: break-all;
  transition: color 0.2s ease;
}

.page-contact .channel-value:hover,
.page-contact .channel-value:focus-visible {
  color: var(--color-blue);
}

.page-contact .channel-card--phone .channel-value:hover,
.page-contact .channel-card--phone .channel-value:focus-visible {
  color: var(--color-red);
}

.page-contact .channel-note {
  margin: 0;
  font-size: 0.8125rem;
  line-height: 1.5;
  color: var(--color-dim);
}

.page-contact .channel-index {
  position: absolute;
  top: 0.75rem;
  right: 1rem;
  font-family: var(--font-mono);
  font-size: 0.625rem;
  letter-spacing: 0.06em;
  color: var(--color-border);
}

/* ---------- 服务时间标签 ---------- */
.page-contact .service-flag {
  margin-top: 1.5rem;
  display: flex;
  align-items: center;
  gap: 0.875rem;
  padding: 0.875rem 1.125rem;
  border: 1px solid rgba(255, 215, 0, 0.25);
  border-radius: 0.5rem;
  background: rgba(255, 215, 0, 0.06);
}

.page-contact .service-flag .status-dot {
  flex-shrink: 0;
  width: 0.5rem;
  height: 0.5rem;
  border-radius: 50%;
  background: var(--color-gold);
  box-shadow: 0 0 0 3px rgba(255, 215, 0, 0.15);
}

.page-contact .service-flag-copy {
  flex: 1;
}

.page-contact .service-flag-time {
  margin: 0;
  font-size: 0.9375rem;
  color: var(--color-text);
}

.page-contact .service-flag-time strong {
  color: var(--color-gold);
  margin-right: 0.25rem;
}

.page-contact .service-flag-note {
  margin: 0.125rem 0 0;
  font-size: 0.8125rem;
  color: var(--color-dim);
}

/* ---------- 联系地址 ---------- */
.page-contact .address-layout {
  display: grid;
  gap: 1.75rem;
  align-items: center;
}

.page-contact .address-info {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.page-contact .address-card {
  position: relative;
  padding: 1.5rem;
}

.page-contact .address-pin {
  width: 2.5rem;
  height: 2.5rem;
  border-radius: 0.375rem;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-glow);
  border: 1px solid rgba(0, 168, 255, 0.3);
  margin-bottom: 1rem;
}

.page-contact .address-pin svg {
  width: 1.25rem;
  height: 1.25rem;
}

.page-contact .address-label {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-dim);
}

.page-contact .address-value {
  margin: 0.75rem 0 0.5rem;
  font-size: 1.375rem;
  font-weight: 600;
  line-height: 1.35;
  color: var(--color-text);
  overflow-wrap: break-word;
}

.page-contact .address-line {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  letter-spacing: 0.04em;
  color: var(--color-blue);
}

.page-contact .address-note {
  margin: 0;
  padding: 0 0.25rem;
  font-size: 0.8125rem;
  line-height: 1.65;
  color: var(--color-dim);
}

.page-contact .address-visual {
  position: relative;
}

.page-contact .address-visual .media-frame {
  overflow: hidden;
  border: 1px solid var(--color-border);
  border-radius: 0.5rem;
}

.page-contact .address-visual .media-frame img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  aspect-ratio: 8 / 5;
}

.page-contact .address-visual::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: 0.5rem;
  background-image:
    linear-gradient(rgba(0, 168, 255, 0.1) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 168, 255, 0.1) 1px, transparent 1px);
  background-size: 24px 24px;
  pointer-events: none;
  opacity: 0.35;
}

/* ---------- 咨询范围 ---------- */
.page-contact .scope-layout {
  display: grid;
  gap: 1.75rem;
  align-items: start;
}

.page-contact .scope-list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-contact .scope-list li {
  position: relative;
  padding: 0.875rem 0 0.875rem 1.5rem;
  border-bottom: 1px solid rgba(42, 52, 84, 0.55);
  font-size: 0.9375rem;
  line-height: 1.6;
  color: var(--color-dim);
}

.page-contact .scope-list li:last-child {
  border-bottom: none;
}

.page-contact .scope-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 1.25rem;
  width: 0.875rem;
  height: 2px;
  background: var(--color-red);
}

.page-contact .scope-list strong {
  color: var(--color-text);
  font-weight: 600;
  margin-right: 0.25rem;
}

.page-contact .scope-aside {
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: 0.5rem;
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0.875rem;
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.16);
}

.page-contact .scope-aside .slash-label {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--color-blue);
}

.page-contact .scope-aside-title {
  margin: 0;
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--color-text);
}

.page-contact .scope-aside-copy {
  margin: 0;
  font-size: 0.875rem;
  line-height: 1.65;
  color: var(--color-dim);
}

.page-contact .btn-ghost {
  border: 1px solid var(--color-blue);
  background: transparent;
  color: var(--color-blue);
  padding: 0.625rem 1.125rem;
  border-radius: 0.375rem;
  font-family: var(--font-body);
  font-size: 0.875rem;
  font-weight: 500;
  text-decoration: none;
  display: inline-block;
  transition: background 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}

.page-contact .btn-ghost:hover,
.page-contact .btn-ghost:focus-visible {
  background: var(--color-blue);
  border-color: var(--color-blue);
  color: #ffffff;
}

/* ---------- 响应承诺 ---------- */
.page-contact .response-telemetry {
  display: grid;
  gap: 1rem;
  margin-top: 1.75rem;
}

.page-contact .response-telemetry .metric {
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: 0.5rem;
  padding: 1.25rem 1rem;
  text-align: center;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.16);
}

.page-contact .response-telemetry .metric-value {
  display: block;
  font-family: var(--font-mono);
  font-size: 1.875rem;
  font-weight: 700;
  line-height: 1.2;
  color: var(--color-gold);
}

.page-contact .response-telemetry .metric-label {
  display: block;
  margin-top: 0.375rem;
  font-size: 0.75rem;
  letter-spacing: 0.04em;
  color: var(--color-dim);
}

.page-contact .response-bottom {
  margin-top: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.page-contact .response-note {
  margin: 0;
  font-size: 0.875rem;
  line-height: 1.7;
  color: var(--color-dim);
}

.page-contact .response-links {
  display: flex;
  align-items: center;
  gap: 0.625rem;
}

.page-contact .link-btn {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-blue);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 0.2s ease, border-color 0.2s ease;
}

.page-contact .link-btn:hover,
.page-contact .link-btn:focus-visible {
  color: var(--color-gold);
  border-bottom-color: var(--color-gold);
}

.page-contact .link-sep {
  font-family: var(--font-mono);
  color: var(--color-border);
}

/* ---------- 桌面断点：768px 及以上 ---------- */
@media (min-width: 768px) {
  .page-contact .contact-hero {
    padding-top: 3rem;
  }

  .page-contact .channels-layout {
    grid-template-columns: 7fr 6fr;
    gap: 2rem;
  }

  .page-contact .channels-list {
    gap: 1.25rem;
  }

  .page-contact .address-layout {
    grid-template-columns: 5fr 7fr;
    gap: 2rem;
  }

  .page-contact .scope-layout {
    grid-template-columns: 7fr 5fr;
    gap: 2rem;
  }

  .page-contact .response-telemetry {
    grid-template-columns: repeat(3, 1fr);
    gap: 1.25rem;
  }

  .page-contact .response-bottom {
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
  }

  .page-contact .response-note {
    max-width: 60ch;
  }
}