.page-contact {
  --contact-panel-bg: #101b37;
  --contact-cell-bg: #091128;
  --contact-aside-w: minmax(296px, 372px);
  --contact-grid-line: rgba(198, 208, 226, 0.16);
}

.page-contact .crumbs {
  margin-bottom: clamp(18px, 2.6vw, 30px);
}

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  position: relative;
  padding-bottom: clamp(26px, 3.6vw, 44px);
  border-bottom: 1px solid var(--line);
}

.page-contact .contact-hero::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -1px;
  width: 104px;
  height: 2px;
  background: linear-gradient(90deg, var(--cyan), rgba(0, 224, 200, 0));
}

.page-contact .contact-hero .eyebrow {
  margin: 0 0 12px;
}

.page-contact .contact-hero .h1 {
  margin: 0 0 16px;
  max-width: 22ch;
}

.page-contact .contact-hero .lede {
  max-width: 62ch;
  margin: 0;
}

.page-contact .contact-hero .tag-row {
  margin-top: 22px;
}

/* ---------- 左右分屏 ---------- */
.page-contact .contact-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(28px, 4vw, 52px);
  margin-top: clamp(28px, 4vw, 48px);
}

.page-contact .contact-aside {
  min-width: 0;
}

.page-contact .contact-body {
  display: flex;
  flex-direction: column;
  gap: clamp(38px, 5vw, 66px);
  min-width: 0;
}

@media (min-width: 1024px) {
  .page-contact .contact-layout {
    grid-template-columns: var(--contact-aside-w) minmax(0, 1fr);
    gap: clamp(32px, 4vw, 64px);
    align-items: start;
  }

  .page-contact .contact-aside {
    position: sticky;
    top: 32px;
  }
}

/* ---------- 通道对照面板 ---------- */
.page-contact .channel-panel {
  position: relative;
  background: var(--ink-800);
  border: 1px solid var(--line);
  padding: clamp(18px, 2.2vw, 26px);
}

.page-contact .channel-panel::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 58px;
  height: 2px;
  background: var(--cyan);
}

.page-contact .panel-heading {
  margin: 8px 0 18px;
  font-size: 1.12rem;
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--text);
}

.page-contact .channel-table-wrap {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.page-contact .channel-table {
  width: 100%;
  min-width: 300px;
  border-collapse: collapse;
  font-size: 0.82rem;
  line-height: 1.65;
}

.page-contact .channel-table thead th {
  text-align: left;
  vertical-align: bottom;
  padding: 0 12px 9px 0;
  border-bottom: 1px solid var(--line-strong);
  font-family: var(--font-mono);
  font-size: 0.66rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  color: var(--muted);
  text-transform: uppercase;
}

.page-contact .channel-table tbody th,
.page-contact .channel-table tbody td {
  text-align: left;
  vertical-align: top;
  padding: 12px 12px 12px 0;
  border-bottom: 1px solid var(--line);
}

.page-contact .channel-table tbody th {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--cyan);
  white-space: nowrap;
}

.page-contact .channel-table tbody td {
  color: var(--text-soft);
}

.page-contact .channel-table tbody tr {
  transition: background var(--ease);
}

.page-contact .channel-table tbody tr:hover {
  background: rgba(0, 224, 200, 0.05);
}

.page-contact .channel-keys {
  margin: 20px 0 0;
  border-top: 1px solid var(--line-strong);
}

.page-contact .channel-keys > div {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 4px 14px;
  padding: 13px 0;
  border-bottom: 1px solid var(--line);
}

.page-contact .channel-keys dt {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.12em;
  color: var(--muted);
}

.page-contact .channel-keys dd {
  margin: 0;
  min-width: 0;
}

.page-contact .mono-value {
  font-family: var(--font-mono);
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--text);
  overflow-wrap: anywhere;
  letter-spacing: 0.01em;
}

.page-contact .aside-note {
  margin: 18px 0 0;
  padding-left: 13px;
  border-left: 2px solid rgba(255, 107, 31, 0.75);
  font-size: 0.84rem;
  line-height: 1.8;
  color: var(--text-soft);
}

/* ---------- 侧栏相关页面 ---------- */
.page-contact .aside-links {
  margin-top: 22px;
}

.page-contact .aside-links-title {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 0.66rem;
  letter-spacing: 0.14em;
  color: var(--muted);
}

.page-contact .aside-links ul {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--line);
}

.page-contact .aside-links li {
  display: flex;
  flex-direction: column;
  gap: 3px;
  padding: 11px 0;
  border-bottom: 1px solid var(--line);
}

.page-contact .aside-links a {
  color: var(--cyan);
  font-size: 0.94rem;
  font-weight: 600;
  text-decoration: none;
  transition: color var(--ease);
}

.page-contact .aside-links a:hover,
.page-contact .aside-links a:focus-visible {
  color: var(--text);
  text-decoration: underline;
  text-underline-offset: 4px;
}

.page-contact .aside-links span {
  font-size: 0.79rem;
  color: var(--muted);
  line-height: 1.6;
}

/* ---------- 内容区块 ---------- */
.page-contact .contact-block {
  min-width: 0;
  scroll-margin-top: 96px;
}

.page-contact .block-head {
  margin-bottom: 18px;
}

.page-contact .block-head .eyebrow {
  margin: 0 0 10px;
}

.page-contact .block-head .h2 {
  margin: 0;
  max-width: 26ch;
}

.page-contact .contact-body .prose {
  max-width: 72ch;
}

.page-contact .contact-body .contact-block > .prose {
  margin: 0 0 4px;
}

.page-contact .contact-visual {
  margin: 0;
}

/* ---------- 处理步骤 ---------- */
.page-contact .step-list {
  list-style: none;
  margin: 26px 0 0;
  padding: 0;
  border-top: 1px solid var(--line-strong);
}

.page-contact .step-list > li {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 6px 18px;
  padding: 20px 0;
  border-bottom: 1px solid var(--line);
}

.page-contact .step-idx {
  font-family: var(--font-mono);
  font-size: 1.25rem;
  font-weight: 600;
  line-height: 1.25;
  color: var(--cyan);
  font-variant-numeric: tabular-nums;
}

.page-contact .step-list .h3 {
  margin: 0 0 7px;
  font-size: 1.02rem;
}

.page-contact .step-list p {
  margin: 0;
  font-size: 0.93rem;
  line-height: 1.85;
  color: var(--text-soft);
  max-width: 68ch;
}

/* ---------- 推送节点横向轨 ---------- */
.page-contact .track-heading {
  margin: clamp(30px, 3.6vw, 44px) 0 14px;
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text);
}

.page-contact .track-wrap {
  position: relative;
  min-width: 0;
}

.page-contact .track-controls {
  display: flex;
  justify-content: flex-end;
  gap: 8px;
  margin-bottom: 12px;
}

.page-contact .track {
  list-style: none;
  margin: 0;
  padding: 0 0 12px;
}

.page-contact .track-item {
  min-width: min(76vw, 272px);
  padding: 20px 20px 22px;
  background: var(--ink-800);
  border: 1px solid var(--line);
  border-top: 2px solid rgba(255, 107, 31, 0.7);
  transition: background var(--ease), border-color var(--ease);
}

.page-contact .track-item:hover {
  background: var(--ink-700);
  border-color: var(--line-strong);
}

.page-contact .track-idx {
  display: block;
  margin-bottom: 12px;
  font-family: var(--font-mono);
  font-size: 0.66rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  color: var(--orange);
}

.page-contact .track-item h4 {
  margin: 0 0 9px;
  font-size: 1rem;
  font-weight: 700;
  color: var(--text);
}

.page-contact .track-item p {
  margin: 0;
  font-size: 0.88rem;
  line-height: 1.8;
  color: var(--text-soft);
}

/* ---------- 更正与选题面板 ---------- */
.page-contact .tiny-note {
  margin: 12px 0 0;
  padding-top: 12px;
  border-top: 1px dashed var(--line-strong);
  font-size: 0.8rem;
  line-height: 1.75;
  color: var(--muted);
}

/* ---------- 合作方向 ---------- */
.page-contact .partner-list {
  list-style: none;
  margin: 26px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--line-strong);
  border: 1px solid var(--line-strong);
}

.page-contact .partner-list > li {
  position: relative;
  background: var(--ink-900);
  padding: clamp(20px, 2.4vw, 28px);
  transition: background var(--ease);
}

.page-contact .partner-list > li:hover {
  background: var(--ink-700);
}

.page-contact .partner-idx {
  display: block;
  margin-bottom: 16px;
  font-family: var(--font-mono);
  font-size: 1.7rem;
  font-weight: 600;
  line-height: 1;
  color: rgba(0, 224, 200, 0.55);
}

.page-contact .partner-list .h3 {
  margin: 0 0 9px;
  font-size: 1.04rem;
}

.page-contact .partner-list p {
  margin: 0;
  font-size: 0.92rem;
  line-height: 1.85;
  color: var(--text-soft);
}

@media (min-width: 768px) {
  .page-contact .partner-list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

/* ---------- 办公地址 ---------- */
.page-contact .visit-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(24px, 3vw, 40px);
  margin-top: 24px;
}

.page-contact .addr-line {
  margin: 0 0 20px;
  padding: 16px 18px;
  background: var(--contact-panel-bg);
  border-left: 3px solid var(--orange);
  font-family: var(--font-mono);
  font-size: clamp(0.94rem, 1.6vw, 1.08rem);
  font-weight: 600;
  line-height: 1.7;
  color: var(--text);
  overflow-wrap: anywhere;
}

.page-contact .coord-grid {
  list-style: none;
  margin: 0 0 22px;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: var(--contact-grid-line);
  border: 1px solid var(--line-strong);
}

.page-contact .coord-grid li {
  min-width: 0;
  padding: 14px 16px;
  background: var(--contact-cell-bg);
  transition: background var(--ease);
}

.page-contact .coord-grid li:hover {
  background: var(--ink-700);
}

.page-contact .coord-key {
  display: block;
  margin-bottom: 7px;
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.14em;
  color: var(--muted);
}

.page-contact .coord-val {
  display: block;
  font-size: 0.94rem;
  font-weight: 500;
  line-height: 1.6;
  color: var(--text);
}

.page-contact .visit-visual {
  position: relative;
  min-width: 0;
}

.page-contact .visit-visual::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  opacity: 0;
  background-image:
    linear-gradient(to right, rgba(0, 224, 200, 0.32) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(0, 224, 200, 0.32) 1px, transparent 1px);
  background-size: 40px 40px;
  background-position: 0 0;
  transition: opacity var(--ease), background-position 320ms cubic-bezier(0.22, 0.61, 0.36, 1);
}

.page-contact .visit-visual:hover::after,
.page-contact .visit-visual:focus-within::after {
  opacity: 1;
  background-position: 14px 14px;
}

@media (min-width: 900px) {
  .page-contact .visit-grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 0.88fr);
    align-items: start;
  }
}

/* ---------- 响应式微调 ---------- */
@media (max-width: 560px) {
  .page-contact .coord-grid {
    grid-template-columns: 1fr;
  }

  .page-contact .channel-keys > div {
    flex-direction: column;
    align-items: flex-start;
    gap: 6px;
  }

  .page-contact .contact-hero .h1 {
    max-width: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .visit-visual::after,
  .page-contact .track-item,
  .page-contact .partner-list > li,
  .page-contact .coord-grid li,
  .page-contact .channel-table tbody tr {
    transition: none;
  }
}