.page-contact {
  --lane-a: var(--c-violet);
  --lane-b: var(--c-cyan);
  --lane-c: var(--c-amber);
  display: block;
  padding-bottom: clamp(3rem, 8vw, 6rem);
}

.page-contact .breadcrumb {
  margin-top: clamp(1.25rem, 4vw, 2.25rem);
  margin-bottom: clamp(.75rem, 2vw, 1.25rem);
}

/* ---------- 首屏 ---------- */

.page-contact .contact-hero {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(1.75rem, 5vw, 3.25rem);
  align-items: center;
}

.page-contact .hero-copy h1 {
  margin: .4rem 0 1rem;
  font-size: clamp(1.9rem, 4.6vw, 3.1rem);
  line-height: 1.14;
  letter-spacing: -.012em;
  text-shadow: 0 0 26px rgba(139, 92, 246, .32);
}

.page-contact .hero-lede {
  max-width: 44ch;
  margin: 0;
}

.page-contact .hero-links {
  display: flex;
  flex-wrap: wrap;
  gap: .75rem;
  margin-top: 1.7rem;
}

.page-contact .hero-visual {
  border: 1px solid var(--c-line);
  border-radius: var(--r-lg);
  padding: clamp(.5rem, 1.6vw, .85rem);
  background: linear-gradient(150deg, rgba(139, 92, 246, .18), rgba(34, 211, 238, .10) 62%, rgba(11, 16, 32, 0));
  box-shadow: var(--shadow-card);
}

.page-contact .hero-img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: calc(var(--r-lg) - 8px);
  object-fit: cover;
}

/* ---------- 区块通用 ---------- */

.page-contact .contact-block {
  margin-top: clamp(3rem, 7vw, 5rem);
}

.page-contact .block-head {
  max-width: 58ch;
  margin-bottom: clamp(1.4rem, 3.5vw, 2.25rem);
}

.page-contact .block-head h2 {
  margin: .3rem 0 .6rem;
  font-size: clamp(1.5rem, 2.9vw, 2.15rem);
  line-height: 1.2;
}

.page-contact .block-head p {
  margin: 0;
  color: var(--c-mist);
}

.page-contact .block-head a,
.page-contact .window-copy a,
.page-contact .band-note a {
  color: var(--c-cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(34, 211, 238, .4);
  transition: border-color .2s var(--ease), color .2s var(--ease);
}

.page-contact .block-head a:hover,
.page-contact .window-copy a:hover,
.page-contact .band-note a:hover {
  color: var(--c-paper);
  border-bottom-color: var(--c-paper);
}

/* ---------- 三条通道卡 ---------- */

.page-contact .lane-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(1rem, 2.4vw, 1.5rem);
}

.page-contact .lane {
  --lane-color: var(--c-line);
  position: relative;
  display: flex;
  flex-direction: column;
  gap: .85rem;
  padding: clamp(1.25rem, 3vw, 1.8rem);
  border: 1px solid var(--c-line);
  border-radius: var(--r-md);
  background: linear-gradient(165deg, rgba(27, 20, 64, .55), rgba(11, 16, 32, .35));
  transition: border-color .28s var(--ease), box-shadow .28s var(--ease), transform .28s var(--ease);
}

.page-contact .lane::before {
  content: "";
  width: 46px;
  height: 3px;
  border-radius: 2px;
  background: var(--lane-color);
  box-shadow: 0 0 14px var(--lane-color);
}

.page-contact .lane:hover,
.page-contact .lane:focus-within {
  border-color: var(--lane-color);
  box-shadow: 0 0 0 1px var(--lane-color), 0 18px 38px rgba(4, 6, 16, .6);
  transform: translateY(-3px);
}

.page-contact .lane--violet { --lane-color: var(--lane-a); }
.page-contact .lane--cyan { --lane-color: var(--lane-b); }
.page-contact .lane--amber { --lane-color: var(--lane-c); }

.page-contact .lane-tag {
  font-family: var(--font-mono);
  font-size: .72rem;
  letter-spacing: .16em;
  color: var(--lane-color);
  font-variant-numeric: tabular-nums;
}

.page-contact .lane h3 {
  margin: 0;
  font-size: clamp(1.1rem, 1.9vw, 1.3rem);
  line-height: 1.3;
}

.page-contact .lane > p {
  margin: 0;
  font-size: .95rem;
  line-height: 1.75;
  color: var(--c-mist);
}

.page-contact .lane-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: .5rem;
  font-size: .9rem;
  line-height: 1.6;
  color: var(--c-paper);
}

.page-contact .lane-list li {
  position: relative;
  padding-left: 1.1rem;
}

.page-contact .lane-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .58em;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--lane-color);
  opacity: .85;
}

.page-contact .lane-foot {
  margin: auto 0 0;
  padding-top: .9rem;
  border-top: 1px solid var(--c-line-soft);
  font-size: .84rem;
  line-height: 1.6;
  color: var(--c-mist);
}

.page-contact .lane-foot .num {
  color: var(--c-cyan);
}

/* ---------- 反馈流程 ---------- */

.page-contact .flow-nodes {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  padding-block: .25rem;
}

.page-contact .flow-node {
  --node-color: var(--c-violet);
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

.page-contact .flow-node--amber { --node-color: var(--c-amber); }
.page-contact .flow-node--mint { --node-color: var(--c-mint); }

.page-contact .flow-node::before,
.page-contact .flow-node::after {
  content: "";
  position: absolute;
  top: 6px;
  height: 1px;
  background: var(--c-line);
}

.page-contact .flow-node::before { left: 0; right: 50%; }
.page-contact .flow-node::after { left: 50%; right: 0; }
.page-contact .flow-node:first-child::before { display: none; }
.page-contact .flow-node:last-child::after { display: none; }

.page-contact .node-dot {
  position: relative;
  z-index: 1;
  width: 13px;
  height: 13px;
  border-radius: 50%;
  border: 2px solid var(--node-color);
  background: var(--c-bg);
  box-shadow: 0 0 14px var(--node-color);
}

.page-contact .node-label {
  margin-top: .85rem;
  font-family: var(--font-mono);
  font-size: .8rem;
  letter-spacing: .12em;
  color: var(--node-color);
}

.page-contact .node-desc {
  margin: .55rem 0 0;
  padding-inline: clamp(.25rem, 1.5vw, 1rem);
  font-size: .84rem;
  line-height: 1.6;
  color: var(--c-mist);
}

.page-contact .contact-figure {
  max-width: 720px;
  margin: clamp(1.75rem, 4vw, 2.5rem) 0 0;
}

.page-contact .contact-figure img {
  display: block;
  width: 100%;
  height: auto;
  border: 1px solid var(--c-line);
  border-radius: var(--r-md);
  object-fit: cover;
}

/* ---------- 回复节奏 ---------- */

.page-contact .window-card {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(1.5rem, 4vw, 2.5rem);
  padding: clamp(1.4rem, 4vw, 2.5rem);
  border: 1px solid var(--c-line);
  border-radius: var(--r-lg);
  background:
    radial-gradient(120% 140% at 100% 0%, rgba(34, 211, 238, .13), transparent 62%),
    linear-gradient(160deg, rgba(27, 20, 64, .78), rgba(11, 16, 32, .55));
  box-shadow: var(--shadow-card);
}

.page-contact .window-copy h2 {
  margin: .3rem 0 .8rem;
  font-size: clamp(1.4rem, 2.7vw, 2rem);
  line-height: 1.22;
}

.page-contact .window-copy p {
  margin: 0 0 .8rem;
  font-size: .96rem;
  line-height: 1.75;
  color: var(--c-mist);
}

.page-contact .window-copy p:last-child { margin-bottom: 0; }

.page-contact .window-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(104px, 1fr));
  gap: .85rem;
  margin: 0;
}

.page-contact .window-stat {
  padding: .9rem 1rem;
  border: 1px solid var(--c-line);
  border-radius: var(--r-sm);
  background: rgba(11, 16, 32, .55);
}

.page-contact .window-stat dt {
  font-size: .76rem;
  letter-spacing: .08em;
  color: var(--c-mist);
}

.page-contact .window-stat dd {
  display: flex;
  align-items: baseline;
  gap: .25rem;
  margin: .45rem 0 0;
}

.page-contact .window-num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: clamp(1.5rem, 3vw, 2rem);
  line-height: 1;
  color: var(--c-cyan);
}

.page-contact .window-unit {
  font-size: .8rem;
  color: var(--c-mist);
}

/* ---------- 联系信息条带 ---------- */

.page-contact .band {
  padding: clamp(1.4rem, 4vw, 2.5rem);
  border: 1px solid var(--c-line);
  border-radius: var(--r-lg);
  background: linear-gradient(140deg, rgba(27, 20, 64, .82), rgba(11, 16, 32, .6));
  box-shadow: var(--shadow-card);
}

.page-contact .band .block-head {
  margin-bottom: clamp(1.2rem, 3vw, 1.75rem);
}

.page-contact .band-list {
  display: grid;
  gap: 1px;
  margin: 0;
  padding: 1px;
  border-radius: var(--r-sm);
  background: var(--c-line-soft);
  overflow: hidden;
}

.page-contact .band-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: .2rem;
  padding: .85rem 1rem;
  background: rgba(11, 16, 32, .78);
}

.page-contact .band-row dt {
  font-size: .78rem;
  letter-spacing: .08em;
  color: var(--c-mist);
}

.page-contact .band-row dd {
  margin: 0;
  font-size: .95rem;
  line-height: 1.6;
  color: var(--c-paper);
  overflow-wrap: anywhere;
}

.page-contact .band-row dd .num {
  color: var(--c-cyan);
  font-size: .98rem;
}

.page-contact .band-note {
  margin: 1.2rem 0 0;
  font-size: .85rem;
  line-height: 1.7;
  color: var(--c-mist);
}

/* ---------- 断点 ---------- */

@media (min-width: 640px) {
  .page-contact .band-row {
    grid-template-columns: 8.5rem minmax(0, 1fr);
    align-items: baseline;
    gap: 1rem;
    padding-inline: 1.25rem;
  }
}

@media (min-width: 860px) {
  .page-contact .lane-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-contact .window-card {
    grid-template-columns: minmax(0, 1.3fr) minmax(0, .7fr);
    align-items: center;
  }
}

@media (min-width: 920px) {
  .page-contact .contact-hero {
    grid-template-columns: minmax(0, 1.06fr) minmax(0, .94fr);
  }
}

@media (max-width: 560px) {
  .page-contact .flow-nodes {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }

  .page-contact .flow-node {
    align-items: flex-start;
    text-align: left;
  }

  .page-contact .flow-node::before,
  .page-contact .flow-node::after {
    display: none;
  }

  .page-contact .node-desc {
    padding-inline: 0;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .lane,
  .page-contact .lane:hover,
  .page-contact .lane:focus-within {
    transition: none;
    transform: none;
  }
}