.page-contact {
  --pc-narrow: 780px;
  position: relative;
  padding: 24px 0 88px;
  overflow-x: clip;
}

.page-contact .contact-column {
  max-width: var(--pc-narrow);
  margin: 0 auto;
}

.page-contact .contact-rail {
  display: none;
}

/* ---------- 首屏 ---------- */
.page-contact .contact-intro {
  padding: 34px 0 6px;
}

.page-contact .contact-intro__title {
  margin: 16px 0 18px;
  font-size: clamp(2.4rem, 8vw, 4.05rem);
  line-height: 1.02;
  letter-spacing: -0.012em;
  color: var(--white);
}

.page-contact .contact-intro__lede {
  max-width: 36em;
  color: var(--muted);
  font-size: 1.02rem;
}

/* ---------- 联系方式主区块 ---------- */
.page-contact .contact-core {
  margin-top: 34px;
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-lg);
  background: var(--ink-800);
  overflow: hidden;
}

.page-contact .contact-core__visual {
  position: relative;
  aspect-ratio: 16 / 6;
  overflow: hidden;
  background: linear-gradient(150deg, #0b1220 0%, #102a44 52%, #0a0e1a 100%);
}

.page-contact .contact-core__img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  opacity: 0.62;
}

.page-contact .contact-core__visual::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(10, 14, 26, 0.05) 32%, rgba(10, 14, 26, 0.94) 100%);
  pointer-events: none;
}

.page-contact .contact-core__body {
  padding: 26px 20px 30px;
}

.page-contact .contact-core__title {
  margin: 14px 0 4px;
  color: var(--white);
  font-size: clamp(1.6rem, 5vw, 2.15rem);
  line-height: 1.14;
}

.page-contact .contact-core__list {
  list-style: none;
  margin: 20px 0 0;
  padding: 0;
}

.page-contact .contact-core__row {
  display: grid;
  gap: 6px;
  padding: 15px 0;
  border-top: 1px solid var(--line-soft);
}

.page-contact .contact-core__row:last-child {
  border-bottom: 1px solid var(--line-soft);
}

.page-contact .contact-core__key {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--muted);
}

.page-contact .contact-core__val {
  font-family: var(--font-mono);
  font-size: 0.98rem;
  line-height: 1.6;
  color: var(--white);
  overflow-wrap: anywhere;
}

.page-contact .contact-core__val--signal {
  color: var(--signal);
  font-weight: 700;
  letter-spacing: 0.02em;
}

.page-contact .contact-core__val--sans {
  font-family: var(--font-sans);
  font-weight: 500;
  letter-spacing: 0.01em;
}

.page-contact .contact-core__note {
  margin: 18px 0 0;
  font-size: 0.9rem;
  line-height: 1.75;
  color: var(--muted);
}

/* ---------- 四类来意通道 ---------- */
.page-contact .contact-lanes {
  margin-top: 68px;
}

.page-contact .contact-lanes__head {
  display: block;
}

.page-contact .contact-lanes__lede {
  margin: 14px 0 0;
  font-size: 0.94rem;
  line-height: 1.75;
  color: var(--muted);
}

.page-contact .lanes {
  margin-top: 24px;
  display: grid;
  gap: 14px;
}

.page-contact .lane {
  position: relative;
  padding: 20px 18px 18px 22px;
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-md);
  background: var(--ink-800);
  outline: none;
  transition: border-color 200ms ease, background-color 200ms ease, transform 200ms ease;
}

.page-contact .lane::before {
  content: "";
  position: absolute;
  left: 0;
  top: 14px;
  bottom: 14px;
  width: 3px;
  border-radius: 0 3px 3px 0;
  background: var(--blue);
  opacity: 0;
  transition: opacity 200ms ease;
}

.page-contact .lane:hover,
.page-contact .lane:focus-visible,
.page-contact .lane:focus-within {
  border-color: var(--signal);
  background: var(--ink-750);
  transform: translateY(-2px);
}

.page-contact .lane:hover::before,
.page-contact .lane:focus-visible::before,
.page-contact .lane:focus-within::before {
  opacity: 1;
}

.page-contact .lane:nth-child(1)::before { background: var(--blue); }
.page-contact .lane:nth-child(2)::before { background: var(--signal); }
.page-contact .lane:nth-child(3)::before { background: var(--orange); }
.page-contact .lane:nth-child(4)::before { background: var(--blue); }

.page-contact .lane__no {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  color: var(--blue);
  border: 1px solid currentColor;
  border-radius: 999px;
  padding: 2px 9px;
}

.page-contact .lane:nth-child(2) .lane__no { color: var(--signal); }
.page-contact .lane:nth-child(3) .lane__no { color: var(--orange); }

.page-contact .lane__title {
  margin: 14px 0 8px;
  font-size: 1.24rem;
  font-weight: 800;
  letter-spacing: 0.01em;
  color: var(--white);
}

.page-contact .lane__desc {
  margin: 0;
  font-size: 0.94rem;
  line-height: 1.72;
  color: var(--muted);
}

.page-contact .lane__channel {
  margin: 12px 0 0;
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.12em;
  color: var(--signal);
}

.page-contact .lane__more {
  display: grid;
  grid-template-rows: 0fr;
  opacity: 0;
  margin-top: 0;
  transition: grid-template-rows 280ms ease, opacity 220ms ease, margin-top 280ms ease;
}

.page-contact .lane__more-inner {
  overflow: hidden;
}

.page-contact .lane:hover .lane__more,
.page-contact .lane:focus-visible .lane__more,
.page-contact .lane:focus-within .lane__more {
  grid-template-rows: 1fr;
  opacity: 1;
  margin-top: 15px;
}

.page-contact .lane__more-title {
  margin: 0 0 8px;
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  color: var(--orange);
}

.page-contact .lane__more-list {
  margin: 0;
  padding: 0 0 0 2px;
  list-style: none;
  display: grid;
  gap: 6px;
}

.page-contact .lane__more-list li {
  position: relative;
  padding-left: 15px;
  font-size: 0.88rem;
  line-height: 1.65;
  color: var(--muted);
}

.page-contact .lane__more-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.6em;
  width: 6px;
  height: 1px;
  background: var(--blue);
}

/* ---------- 数据纠错（纸面区块） ---------- */
.page-contact .contact-fix {
  margin-top: 68px;
}

.page-contact .contact-fix__block {
  padding: 30px 22px 32px;
}

.page-contact .contact-fix__eyebrow {
  color: var(--brown-warm);
}

.page-contact .contact-fix__title {
  margin: 14px 0 14px;
  font-size: clamp(1.55rem, 5vw, 2.1rem);
  line-height: 1.16;
  color: var(--paper-ink);
}

.page-contact .contact-fix__prose {
  margin: 0;
  color: var(--paper-ink);
  font-size: 0.98rem;
}

.page-contact .fix-list {
  list-style: none;
  margin: 24px 0 0;
  padding: 0;
  border-top: 1px dashed rgba(36, 28, 22, 0.24);
}

.page-contact .fix-list__item {
  display: grid;
  gap: 5px;
  padding: 13px 0;
  border-bottom: 1px dashed rgba(36, 28, 22, 0.24);
}

.page-contact .fix-list__key {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.16em;
  color: var(--brown);
}

.page-contact .fix-list__val {
  font-size: 0.95rem;
  line-height: 1.65;
  color: var(--paper-ink);
}

.page-contact .contact-fix__tail {
  margin: 20px 0 0;
  font-size: 0.92rem;
  line-height: 1.75;
  color: var(--brown);
}

/* ---------- 内容与合作 ---------- */
.page-contact .contact-partner {
  margin-top: 68px;
}

.page-contact .contact-partner__grid {
  display: grid;
  gap: 28px;
}

.page-contact .contact-partner__lead .prose {
  margin: 14px 0 20px;
  font-size: 0.98rem;
}

.page-contact .partner-tags {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
}

.page-contact .partner-tags__item {
  padding: 16px 8px;
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-sm);
  background: var(--teal);
  text-align: center;
}

.page-contact .partner-tags__num {
  display: block;
  font-family: var(--font-mono);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--signal);
  line-height: 1;
}

.page-contact .partner-tags__label {
  display: block;
  margin-top: 7px;
  font-size: 0.74rem;
  letter-spacing: 0.04em;
  color: var(--muted);
}

.page-contact .contact-partner__notes {
  margin-top: 20px;
  padding: 18px 18px 20px;
  border-left: 2px solid var(--orange);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  background: var(--ink-800);
}

.page-contact .contact-partner__notes-text {
  margin: 10px 0 0;
  font-size: 0.92rem;
  line-height: 1.75;
  color: var(--muted);
}

/* ---------- 到访 ---------- */
.page-contact .contact-visit {
  margin-top: 68px;
}

.page-contact .contact-visit__grid {
  display: grid;
  gap: 26px;
}

.page-contact .contact-visit__map {
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-md);
  overflow: hidden;
  background: var(--ink-800);
}

.page-contact .contact-visit__map img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  opacity: 0.9;
}

.page-contact .contact-visit__body .prose {
  margin: 14px 0 20px;
  font-size: 0.98rem;
}

.page-contact .visit-tips {
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-sm);
  background: var(--ink-800);
  overflow: hidden;
}

.page-contact .visit-tips summary {
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 14px 18px;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.14em;
  color: var(--signal);
  transition: background-color 200ms ease;
}

.page-contact .visit-tips summary:hover {
  background: var(--ink-750);
}

.page-contact .visit-tips summary::-webkit-details-marker {
  display: none;
}

.page-contact .visit-tips summary::after {
  content: "+";
  font-size: 1.05rem;
  color: var(--muted);
}

.page-contact .visit-tips[open] summary::after {
  content: "\2212";
  color: var(--orange);
}

.page-contact .visit-tips__body {
  padding: 2px 18px 18px;
  font-size: 0.92rem;
  line-height: 1.78;
  color: var(--muted);
}

.page-contact .visit-tips__body p {
  margin: 0 0 10px;
}

.page-contact .visit-tips__body p:last-child {
  margin-bottom: 0;
}

/* ---------- 收尾 ---------- */
.page-contact .contact-tail {
  margin-top: 68px;
  padding-top: 24px;
  border-top: 1px solid var(--line-soft);
}

.page-contact .contact-tail__row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 14px 26px;
}

.page-contact .contact-tail__links {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
}

.page-contact .contact-tail__links a {
  font-size: 0.9rem;
  color: var(--muted);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  padding-bottom: 2px;
  transition: color 200ms ease, border-color 200ms ease;
}

.page-contact .contact-tail__links a:hover,
.page-contact .contact-tail__links a:focus-visible {
  color: var(--signal);
  border-bottom-color: var(--signal);
}

.page-contact .contact-tail__icp {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.1em;
  color: var(--muted);
  opacity: 0.7;
}

/* ---------- 平板 ---------- */
@media (min-width: 720px) {
  .page-contact .contact-core__body {
    padding: 34px 34px 38px;
  }

  .page-contact .contact-core__row {
    grid-template-columns: 152px minmax(0, 1fr);
    align-items: baseline;
    gap: 20px;
  }

  .page-contact .lanes {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px;
  }

  .page-contact .contact-fix__block {
    padding: 40px 40px 42px;
  }

  .page-contact .fix-list__item {
    grid-template-columns: 132px minmax(0, 1fr);
    align-items: baseline;
    gap: 20px;
  }

  .page-contact .contact-partner__grid {
    grid-template-columns: minmax(0, 1.25fr) minmax(0, 1fr);
    gap: 34px;
    align-items: start;
  }

  .page-contact .partner-tags {
    grid-template-columns: minmax(0, 1fr);
  }

  .page-contact .partner-tags__item {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: 14px;
    text-align: left;
    padding: 16px 18px;
  }

  .page-contact .partner-tags__label {
    margin-top: 0;
    text-align: right;
  }

  .page-contact .contact-visit__grid {
    grid-template-columns: minmax(0, 0.82fr) minmax(0, 1fr);
    gap: 32px;
    align-items: start;
  }

  .page-contact .contact-visit__map {
    margin-top: 46px;
  }
}

/* ---------- 桌面右侧坐标带 ---------- */
@media (min-width: 1280px) {
  .page-contact {
    padding-bottom: 110px;
  }

  .page-contact .contact-rail {
    display: block;
    position: fixed;
    top: 0;
    right: 0;
    width: 118px;
    height: 100vh;
    pointer-events: none;
    z-index: 0;
    opacity: 0.5;
  }

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

  .page-contact .contact-column {
    margin-left: auto;
    margin-right: auto;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .lane,
  .page-contact .lane::before,
  .page-contact .lane__more,
  .page-contact .visit-tips summary,
  .page-contact .contact-tail__links a {
    transition: none;
  }
}
<<<END>>>