.page-contact {
  --ch-grid: rgba(29, 62, 92, 0.55);
  --ch-grid-soft: rgba(29, 62, 92, 0.34);
  --ch-line-green: rgba(23, 185, 120, 0.62);
  --ch-line-cyan: rgba(56, 217, 240, 0.62);
  --ch-line-amber: rgba(255, 176, 32, 0.68);
  --desk-ink: #061426;
  --desk-ink-soft: rgba(6, 20, 38, 0.66);
  --desk-edge: rgba(29, 62, 92, 0.6);
}

/* ---------- 面包屑 ---------- */
.page-contact .breadcrumbs-wrap {
  padding-top: 20px;
}

/* ---------- 首屏 ---------- */
.page-contact .section {
  padding-block: 52px;
}

.page-contact .contact-hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  border-bottom: 1px solid var(--line);
  background: var(--ink-950);
  padding-block: 0;
}

.page-contact .contact-hero-media {
  position: absolute;
  inset: 0;
  z-index: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 42%;
  opacity: 0.36;
  filter: saturate(0.72) contrast(1.06);
}

.page-contact .contact-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  background-image:
    linear-gradient(to right, var(--ch-grid) 1px, transparent 1px),
    linear-gradient(to bottom, var(--ch-grid-soft) 1px, transparent 1px);
  background-size: 72px 72px;
  -webkit-mask-image: linear-gradient(118deg, #000 8%, rgba(0, 0, 0, 0.15) 68%, transparent 92%);
  mask-image: linear-gradient(118deg, #000 8%, rgba(0, 0, 0, 0.15) 68%, transparent 92%);
}

.page-contact .contact-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 2;
  pointer-events: none;
  background:
    linear-gradient(104deg, rgba(6, 20, 38, 0.96) 0%, rgba(6, 20, 38, 0.84) 48%, rgba(10, 43, 34, 0.7) 100%);
}

.page-contact .contact-hero-inner {
  position: relative;
  z-index: 3;
  padding-block: 46px 42px;
}

.page-contact .contact-title {
  margin: 12px 0 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(34px, 9vw, 96px);
  line-height: 0.96;
  letter-spacing: -0.02em;
  color: var(--text);
  max-width: 16ch;
  overflow-wrap: anywhere;
}

.page-contact .contact-lede {
  margin-top: 18px;
  max-width: 62ch;
}

.page-contact .hero-facts {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px 18px;
  margin: 34px 0 0;
  padding: 20px 0 0;
  list-style: none;
  border-top: 1px solid var(--line);
}

.page-contact .hero-fact {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.page-contact .hero-fact-value {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: var(--step-20);
  line-height: 1.15;
  color: var(--amber);
}

.page-contact .hero-fact-label {
  font-size: var(--step-11);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
}

/* ---------- 通道示意 ---------- */
.page-contact .contact-channel {
  background: var(--ink-900);
  border-bottom: 1px solid var(--line);
}

.page-contact .channel-board {
  margin-top: 30px;
}

.page-contact .channel-fan {
  height: 84px;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  padding-block: 6px;
  background: linear-gradient(180deg, rgba(12, 33, 54, 0.9), rgba(6, 20, 38, 0.7));
}

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

.page-contact .fan-line,
.page-contact .fan-out {
  fill: none;
  stroke-width: 1.25;
}

.page-contact .fan-line--green {
  stroke: var(--ch-line-green);
}

.page-contact .fan-line--cyan {
  stroke: var(--ch-line-cyan);
}

.page-contact .fan-line--amber {
  stroke: var(--ch-line-amber);
}

.page-contact .fan-out {
  stroke: var(--muted);
  stroke-dasharray: 6 6;
}

.page-contact .fan-node {
  fill: var(--amber);
}

.page-contact .channel-list {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
  margin-top: 22px;
}

.page-contact .channel-item {
  position: relative;
  padding: 18px 18px 20px;
  border: 1px solid var(--line);
  border-left-width: 3px;
  background: var(--ink-800);
  overflow-wrap: anywhere;
}

.page-contact .channel-item--a {
  border-left-color: var(--green);
}

.page-contact .channel-item--b {
  border-left-color: var(--cyan);
}

.page-contact .channel-item--c {
  border-left-color: var(--amber);
}

.page-contact .channel-index {
  margin: 0;
  font-size: var(--step-13);
  letter-spacing: 0.1em;
  color: var(--muted);
}

.page-contact .channel-name {
  margin: 8px 0 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: var(--step-26);
  line-height: 1.2;
  color: var(--text);
}

.page-contact .channel-for {
  margin: 10px 0 0;
  font-size: var(--step-13);
  letter-spacing: 0.04em;
  color: var(--cyan);
}

.page-contact .channel-desc {
  margin: 10px 0 0;
  font-size: var(--step-15);
  line-height: 1.7;
  color: var(--muted);
}

.page-contact .channel-caption {
  margin: 18px 0 0;
  padding-left: 14px;
  border-left: 2px solid var(--line);
}

/* ---------- 咨询准备 ---------- */
.page-contact .prep-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 28px;
}

.page-contact .prep-panel {
  margin-top: 20px;
  padding: 22px 18px;
  border: 1px solid var(--line);
  background: var(--ink-800);
}

.page-contact .prep-list {
  display: grid;
  gap: 18px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-contact .prep-item {
  padding-left: 14px;
  border-left: 1px solid var(--line);
}

.page-contact .prep-key {
  display: block;
  font-size: var(--step-13);
  letter-spacing: 0.08em;
  color: var(--green);
}

.page-contact .prep-item p {
  margin: 8px 0 0;
  font-size: var(--step-15);
  line-height: 1.75;
  color: var(--muted);
}

.page-contact .prep-tip {
  margin: 24px 0 0;
  padding: 12px 14px;
  border: 1px dashed var(--line);
  font-size: var(--step-13);
  line-height: 1.7;
  color: var(--text);
}

/* ---------- 回复节奏 ---------- */
.page-contact .contact-cadence {
  background: var(--ink-900);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.page-contact .cadence-track {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 18px;
  margin: 30px 0 0;
  padding: 0;
  list-style: none;
}

.page-contact .cadence-node {
  position: relative;
  padding: 20px 18px;
  border: 1px solid var(--line);
  background: var(--ink-950);
}

.page-contact .cadence-step {
  display: inline-block;
  padding: 3px 9px;
  border: 1px solid var(--amber);
  font-size: var(--step-13);
  letter-spacing: 0.1em;
  color: var(--amber);
  background: rgba(255, 176, 32, 0.08);
}

.page-contact .cadence-name {
  margin: 12px 0 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: var(--step-20);
  color: var(--text);
}

.page-contact .cadence-desc {
  margin: 8px 0 0;
  font-size: var(--step-15);
  line-height: 1.72;
  color: var(--muted);
}

.page-contact .cadence-note {
  margin: 24px 0 0;
  font-size: var(--step-13);
  line-height: 1.75;
  color: var(--muted);
}

/* ---------- 联系方式 ---------- */
.page-contact .contact-desk {
  padding-block: 56px;
}

.page-contact .desk-card {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 26px;
  padding: 26px 20px;
  background: var(--paper);
  color: var(--desk-ink);
  border: 1px solid var(--desk-edge);
  box-shadow: 8px 8px 0 0 rgba(29, 62, 92, 0.55);
}

.page-contact .desk-label {
  color: var(--desk-ink-soft);
}

.page-contact .desk-title {
  margin: 10px 0 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(24px, 6vw, 40px);
  line-height: 1.14;
  letter-spacing: -0.01em;
  color: var(--desk-ink);
}

.page-contact .desk-list {
  margin: 22px 0 0;
  border-top: 2px solid var(--desk-ink);
}

.page-contact .desk-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 4px;
  padding: 14px 0;
  border-bottom: 1px solid rgba(6, 20, 38, 0.22);
}

.page-contact .desk-key {
  font-size: var(--step-11);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--desk-ink-soft);
}

.page-contact .desk-value {
  margin: 0;
  font-size: var(--step-17);
  line-height: 1.6;
  font-variant-numeric: tabular-nums;
  color: var(--desk-ink);
  overflow-wrap: anywhere;
  -webkit-user-select: all;
  user-select: all;
}

.page-contact .desk-note {
  margin: 18px 0 0;
  font-size: var(--step-13);
  line-height: 1.78;
  color: var(--desk-ink-soft);
}

.page-contact .desk-figure {
  margin: 0;
  border: 1px solid var(--desk-edge);
}

.page-contact .desk-figure img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
  aspect-ratio: 3 / 2;
}

.page-contact .desk-figure .media-caption {
  padding: 10px 12px;
  font-size: var(--step-11);
  line-height: 1.6;
  color: var(--desk-ink-soft);
  border-top: 1px solid rgba(6, 20, 38, 0.22);
}

/* ---------- 先看这里 ---------- */
.page-contact .contact-route {
  padding-bottom: 64px;
}

.page-contact .route-list {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 16px;
  margin: 28px 0 0;
  padding: 0;
  list-style: none;
}

.page-contact .route-item {
  padding: 22px 18px;
  border: 1px solid var(--line);
  border-top: 3px solid var(--cyan);
  background: var(--ink-800);
  transition: border-color 180ms linear, background-color 180ms linear;
}

.page-contact .route-item--fields {
  border-top-color: var(--green);
}

.page-contact .route-item:hover,
.page-contact .route-item:focus-within {
  border-color: var(--cyan);
  background: var(--ink-900);
}

.page-contact .route-item--fields:hover,
.page-contact .route-item--fields:focus-within {
  border-color: var(--green);
}

.page-contact .route-tag {
  margin: 0;
}

.page-contact .route-q {
  margin: 14px 0 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: var(--step-20);
  line-height: 1.34;
  color: var(--text);
}

.page-contact .route-a {
  margin: 10px 0 0;
  font-size: var(--step-15);
  line-height: 1.8;
  color: var(--muted);
}

.page-contact .route-link {
  display: inline-block;
  margin-top: 16px;
  padding: 9px 16px;
  border: 1px solid var(--cyan);
  font-size: var(--step-13);
  letter-spacing: 0.06em;
  color: var(--cyan);
  text-decoration: none;
  transition: background-color 160ms linear, color 160ms linear;
}

.page-contact .route-item--fields .route-link {
  border-color: var(--green);
  color: var(--green);
}

.page-contact .route-link:hover,
.page-contact .route-link:focus-visible {
  background: var(--cyan);
  color: var(--ink-950);
}

.page-contact .route-item--fields .route-link:hover,
.page-contact .route-item--fields .route-link:focus-visible {
  background: var(--green);
  color: var(--ink-950);
}

.page-contact .route-link:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
}

.page-contact .route-foot {
  margin: 26px 0 0;
  padding-top: 16px;
  border-top: 1px solid var(--line);
  font-size: var(--step-13);
  line-height: 1.8;
  color: var(--muted);
}

.page-contact .route-foot a {
  color: var(--cyan);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- 735px ---------- */
@media (min-width: 735px) {
  .page-contact .section {
    padding-block: 68px;
  }

  .page-contact .contact-hero-inner {
    padding-block: 68px 62px;
  }

  .page-contact .hero-facts {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 20px;
  }

  .page-contact .channel-fan {
    height: 108px;
  }

  .page-contact .channel-list {
    grid-template-columns: 1.15fr 1fr 1fr;
    gap: 16px;
  }

  .page-contact .channel-item {
    padding: 20px 20px 22px;
  }

  .page-contact .prep-panel {
    padding: 26px 26px;
  }

  .page-contact .prep-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 22px;
  }

  .page-contact .cadence-track {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 18px;
  }

  .page-contact .desk-card {
    padding: 34px 32px;
  }

  .page-contact .desk-row {
    grid-template-columns: 140px minmax(0, 1fr);
    align-items: baseline;
    gap: 16px;
  }

  .page-contact .route-list {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: 18px;
  }
}

/* ---------- 1024px ---------- */
@media (min-width: 1024px) {
  .page-contact .section {
    padding-block: 80px;
  }

  .page-contact .breadcrumbs-wrap {
    padding-top: 26px;
  }

  .page-contact .contact-hero-inner {
    padding-block: 92px 78px;
    display: grid;
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    column-gap: 48px;
    align-items: end;
  }

  .page-contact .contact-hero-inner .section-label {
    grid-column: 1 / -1;
  }

  .page-contact .contact-title {
    grid-column: 1 / 2;
  }

  .page-contact .contact-lede {
    grid-column: 1 / 2;
    margin-top: 22px;
  }

  .page-contact .hero-facts {
    grid-column: 2 / 3;
    grid-row: 2 / span 2;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    align-self: end;
    margin-top: 0;
  }

  .page-contact .channel-fan {
    height: 130px;
  }

  .page-contact .channel-list {
    grid-template-columns: 1.35fr 1fr 1fr;
    gap: 18px;
  }

  .page-contact .prep-list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-contact .cadence-track {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 16px;
    position: relative;
  }

  .page-contact .cadence-track::before {
    content: "";
    position: absolute;
    left: 0;
    right: 0;
    top: 32px;
    height: 1px;
    background: var(--line);
    pointer-events: none;
  }

  .page-contact .cadence-node {
    position: relative;
    z-index: 1;
  }

  .page-contact .desk-card {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: 44px;
    padding: 46px 44px 48px;
    box-shadow: 12px 12px 0 0 rgba(29, 62, 92, 0.55);
  }

  .page-contact .route-list {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: 22px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .route-item,
  .page-contact .route-link {
    transition: none;
  }
}