.page-contact {
  --contact-hard: 6px 6px 0 0 rgba(0, 0, 0, .45);
  --contact-hard-hover: 9px 9px 0 0 rgba(0, 0, 0, .55);
  --contact-gap: clamp(16px, 2.4vw, 26px);

  display: block;
  width: 100%;
  max-width: calc(var(--maxw) + var(--gutter) * 2);
  margin-inline: auto;
  padding: clamp(20px, 4vw, 40px) var(--gutter) calc(var(--section-gap) * 1.05);
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: var(--fs-body);
  line-height: 1.8;
  overflow-x: hidden;
}

.page-contact > * + * {
  margin-top: var(--section-gap);
}

.page-contact > .breadcrumbs + * {
  margin-top: clamp(18px, 3vw, 30px);
}

/* ---------- 通用排版 ---------- */

.page-contact h2 {
  margin: 0 0 14px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: var(--fs-h2);
  line-height: 1.24;
  letter-spacing: -.015em;
  color: var(--white);
}

.page-contact h3 {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: var(--fs-h3);
  line-height: 1.32;
  letter-spacing: -.01em;
  color: var(--white);
}

.page-contact p {
  margin: 0 0 14px;
}

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

.page-contact .mono {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
}

.page-contact .c-link {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(0, 229, 208, .42);
  transition: border-color .15s var(--ease), color .15s var(--ease);
}

.page-contact .c-link:hover,
.page-contact .c-link:focus-visible {
  color: var(--white);
  border-bottom-color: var(--cyan);
}

.page-contact .contact-head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 8px 24px;
  margin-bottom: clamp(18px, 2.6vw, 30px);
  padding-bottom: 14px;
  border-bottom: 1px solid var(--line);
}

.page-contact .contact-head h2 {
  margin: 0;
}

/* ---------- 首屏框景 ---------- */

.page-contact .contact-hero {
  position: relative;
  padding: clamp(26px, 4.6vw, 58px);
  background:
    linear-gradient(180deg, rgba(0, 229, 208, .07), rgba(0, 229, 208, 0) 46%),
    var(--panel);
  border: 1px solid var(--line);
  box-shadow: var(--shadow-hard);
}

.page-contact .contact-hero::before,
.page-contact .contact-hero::after {
  content: "";
  position: absolute;
  width: 20px;
  height: 20px;
  border: 2px solid var(--cyan);
  pointer-events: none;
}

.page-contact .contact-hero::before {
  top: -1px;
  left: -1px;
  border-right: 0;
  border-bottom: 0;
}

.page-contact .contact-hero::after {
  right: -1px;
  bottom: -1px;
  border-top: 0;
  border-left: 0;
}

.page-contact .contact-hero .eyebrow {
  margin-bottom: 14px;
}

.page-contact .contact-hero h1 {
  margin: 0 0 18px;
  max-width: 24ch;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(1.85rem, 5.2vw, 3.05rem);
  line-height: 1.18;
  letter-spacing: -.02em;
  color: var(--white);
}

.page-contact .contact-hero-lead {
  max-width: 64ch;
  margin: 0;
  padding-left: 16px;
  border-left: 2px solid var(--line);
  color: var(--muted);
  font-size: clamp(15.5px, 1.1vw, 17px);
}

.page-contact .contact-index {
  list-style: none;
  display: grid;
  gap: 1px;
  margin: clamp(20px, 3vw, 32px) 0 0;
  padding: 0;
  background: var(--line-soft);
  border: 1px solid var(--line);
}

.page-contact .contact-index a {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 13px 16px;
  background: var(--bg-deep);
  color: var(--text);
  font-size: 14.5px;
  text-decoration: none;
  transition: background-color .15s var(--ease), color .15s var(--ease);
}

.page-contact .contact-index a:hover,
.page-contact .contact-index a:focus-visible {
  background: var(--panel-2);
  color: var(--white);
}

.page-contact .contact-index .mono {
  color: var(--cyan);
  font-size: 12.5px;
  letter-spacing: .1em;
}

@media (min-width: 700px) {
  .page-contact .contact-index {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

/* ---------- 联系信息板 ---------- */

.page-contact .contact-board {
  display: grid;
  gap: clamp(18px, 2.6vw, 30px);
}

.page-contact .contact-board-title {
  margin: 0;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--line);
}

.page-contact .contact-cards {
  display: grid;
  gap: var(--contact-gap);
}

.page-contact .contact-card {
  position: relative;
  padding: 20px 20px 22px 24px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-left: 4px solid var(--line);
  box-shadow: var(--contact-hard);
  transition: transform .15s var(--ease), box-shadow .15s var(--ease),
    border-color .15s var(--ease), background-color .15s var(--ease);
}

.page-contact .contact-card .eyebrow {
  margin-bottom: 8px;
}

.page-contact .contact-card:hover,
.page-contact .contact-card:focus-within {
  transform: translateY(-3px);
  background: var(--panel-2);
  box-shadow: var(--contact-hard-hover);
}

.page-contact .contact-card--mail {
  border-left-color: var(--cyan);
}

.page-contact .contact-card--mail:hover,
.page-contact .contact-card--mail:focus-within {
  border-color: var(--cyan);
}

.page-contact .contact-card--phone {
  border-left-color: var(--orange);
}

.page-contact .contact-card--phone:hover,
.page-contact .contact-card--phone:focus-within {
  border-color: var(--orange);
}

.page-contact .contact-card--addr {
  border-left-color: var(--amber);
}

.page-contact .contact-card--addr:hover,
.page-contact .contact-card--addr:focus-within {
  border-color: var(--amber);
}

.page-contact .contact-value {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: clamp(14px, 1.6vw, 16px);
  line-height: 1.55;
  letter-spacing: .05em;
  color: var(--cyan);
  overflow-wrap: anywhere;
  user-select: all;
}

.page-contact .contact-card--phone .contact-value {
  color: var(--orange);
  letter-spacing: .09em;
}

.page-contact .contact-value--text {
  font-family: var(--font-body);
  font-size: 15.5px;
  line-height: 1.72;
  letter-spacing: 0;
  color: var(--text);
  user-select: auto;
}

.page-contact .contact-note {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.72;
}

.page-contact .contact-brief {
  padding: clamp(20px, 3vw, 34px);
  background: var(--panel);
  border: 1px solid var(--line);
}

.page-contact .contact-brief-block + .contact-brief-block {
  margin-top: 26px;
  padding-top: 24px;
  border-top: 1px solid var(--line-soft);
}

.page-contact .contact-points {
  list-style: none;
  display: grid;
  gap: 10px;
  margin: 0;
  padding: 0;
}

.page-contact .contact-points li {
  position: relative;
  padding-left: 20px;
  color: var(--text);
  font-size: 15.5px;
  line-height: 1.7;
}

.page-contact .contact-points li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .74em;
  width: 9px;
  height: 2px;
  background: var(--cyan);
}

.page-contact .contact-points--orange li::before {
  background: var(--orange);
}

.page-contact .contact-brief-foot {
  margin: 26px 0 0;
  padding: 14px 16px;
  background: var(--bg-deep);
  border: 1px dashed var(--line);
  color: var(--muted);
  font-size: 14px;
  line-height: 1.72;
}

@media (min-width: 981px) {
  .page-contact .contact-board {
    grid-template-columns: minmax(0, 400px) minmax(0, 1fr);
    align-items: start;
    column-gap: clamp(24px, 3vw, 44px);
  }

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

  .page-contact .contact-cards {
    grid-column: 1;
  }

  .page-contact .contact-brief {
    grid-column: 2;
  }
}

/* ---------- 回复节奏 ---------- */

.page-contact .contact-timing-grid {
  display: grid;
  gap: clamp(20px, 3vw, 38px);
}

.page-contact .contact-timing-copy p {
  max-width: 60ch;
  color: var(--text);
}

.page-contact .contact-note-strong {
  padding: 14px 16px;
  background: var(--panel);
  border-left: 3px solid var(--orange);
  color: var(--text) !important;
  font-size: 15px;
  line-height: 1.75;
}

.page-contact .contact-timeline {
  display: block;
  width: 100%;
  height: auto;
  margin-top: 22px;
  background: var(--bg-deep);
  border: 1px solid var(--line);
}

.page-contact .contact-timeline .tl-axis,
.page-contact .contact-timeline .tl-tick {
  stroke: var(--line);
  stroke-width: 1;
}

.page-contact .contact-timeline .tl-bar {
  fill: rgba(0, 229, 208, .18);
}

.page-contact .contact-timeline .tl-dot-start {
  fill: var(--amber);
}

.page-contact .contact-timeline .tl-dot-end {
  fill: var(--cyan);
}

.page-contact .contact-timeline .tl-label {
  fill: var(--muted);
  font-family: var(--font-mono);
  font-size: 12px;
}

.page-contact .contact-timeline .tl-cap {
  fill: var(--text);
  font-family: var(--font-body);
  font-size: 12.5px;
}

.page-contact .contact-timeline .tl-cap--muted {
  fill: var(--muted);
  font-size: 11.5px;
}

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

.page-contact .contact-figure .media-frame {
  background: var(--panel);
  border: 1px solid var(--line);
  box-shadow: var(--contact-hard);
}

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

.page-contact .contact-figure .media-frame-caption,
.page-contact .media-frame-caption {
  display: block;
  margin-top: 10px;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.7;
}

@media (min-width: 981px) {
  .page-contact .contact-timing-grid {
    grid-template-columns: minmax(0, 1.08fr) minmax(0, .92fr);
    align-items: start;
  }

  .page-contact .contact-timing-grid .contact-figure {
    margin-top: clamp(20px, 4vw, 60px);
  }
}

/* ---------- 本地化服务 ---------- */

.page-contact .contact-local-grid {
  display: grid;
  gap: clamp(20px, 3vw, 38px);
}

.page-contact .contact-local-copy .eyebrow {
  margin-bottom: 12px;
}

.page-contact .contact-local-copy p {
  max-width: 58ch;
}

.page-contact .contact-local-link {
  padding-top: 14px;
  border-top: 1px solid var(--line-soft);
  color: var(--muted);
  font-size: 14.5px;
}

@media (min-width: 880px) {
  .page-contact .contact-local-grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, .92fr);
    align-items: start;
    column-gap: clamp(28px, 4vw, 64px);
  }

  .page-contact .contact-local-grid .contact-figure {
    margin-top: clamp(28px, 6vw, 84px);
  }
}

/* ---------- 合作与引用 ---------- */

.page-contact .contact-collab-grid {
  display: grid;
  gap: var(--contact-gap);
}

.page-contact .contact-collab-card {
  padding: 20px 22px 22px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-top: 3px solid var(--blue);
  transition: transform .15s var(--ease), border-color .15s var(--ease),
    background-color .15s var(--ease), box-shadow .15s var(--ease);
}

.page-contact .contact-collab-card:hover,
.page-contact .contact-collab-card:focus-within {
  transform: translateY(-3px);
  background: var(--panel-2);
  border-color: var(--cyan);
  box-shadow: var(--contact-hard);
}

.page-contact .contact-collab-num {
  display: inline-block;
  margin-bottom: 12px;
  color: var(--blue);
  font-size: 12.5px;
  letter-spacing: .16em;
}

.page-contact .contact-collab-card p {
  margin: 0;
  color: var(--muted);
  font-size: 14.5px;
  line-height: 1.76;
}

.page-contact .contact-collab-card:hover .contact-collab-num {
  color: var(--cyan);
}

.page-contact .contact-collab-foot {
  margin: clamp(20px, 3vw, 30px) 0 0;
  padding-left: 16px;
  border-left: 2px solid var(--line);
  color: var(--muted);
  font-size: 14.5px;
}

@media (min-width: 760px) {
  .page-contact .contact-collab-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

/* ---------- 速答 ---------- */

.page-contact .contact-qa {
  display: grid;
  gap: 1px;
  margin: 0;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-contact .contact-qa-item {
  display: grid;
  gap: 6px;
  padding: 18px 20px;
  background: var(--bg-deep);
  transition: background-color .15s var(--ease);
}

.page-contact .contact-qa-item:hover {
  background: var(--panel-2);
}

.page-contact .contact-qa-item dt {
  position: relative;
  padding-left: 16px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 16px;
  color: var(--white);
}

.page-contact .contact-qa-item dt::before {
  content: "";
  position: absolute;
  left: 0;
  top: .78em;
  width: 8px;
  height: 2px;
  background: var(--cyan);
}

.page-contact .contact-qa-item dd {
  margin: 0;
  padding-left: 16px;
  color: var(--muted);
  font-size: 14.5px;
  line-height: 1.76;
}

@media (min-width: 760px) {
  .page-contact .contact-qa {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-contact .contact-qa-item:last-child {
    grid-column: 1 / -1;
  }
}

/* ---------- 备案通栏 ---------- */

.page-contact .contact-registry {
  padding: clamp(22px, 3.4vw, 36px);
  background: var(--panel);
  border: 1px solid var(--line);
  box-shadow: var(--shadow-hard);
}

.page-contact .contact-registry-title {
  margin: 0 0 18px;
}

.page-contact .contact-registry-grid {
  display: grid;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-contact .registry-cell {
  display: grid;
  gap: 8px;
  padding: 18px 20px;
  background: var(--bg-deep);
}

.page-contact .registry-key {
  color: var(--amber);
  font-size: 12px;
  letter-spacing: .18em;
}

.page-contact .registry-val {
  color: var(--text);
  font-size: 15px;
  line-height: 1.6;
  overflow-wrap: anywhere;
}

.page-contact .registry-val--text {
  font-family: var(--font-body);
  font-size: 14.5px;
  color: var(--muted);
}

.page-contact .contact-registry-note {
  margin: 18px 0 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.76;
}

@media (min-width: 800px) {
  .page-contact .contact-registry-grid {
    grid-template-columns: minmax(0, .8fr) minmax(0, 1.2fr) minmax(0, 1.2fr);
  }
}

/* ---------- 动效降级 ---------- */

@media (prefers-reduced-motion: reduce) {
  .page-contact * {
    transition: none !important;
    transform: none !important;
  }
}
<<<END>>>