@keyframes ct-pulse {
  0%, 100% { box-shadow: 0 0 0 3px rgba(55, 227, 210, .18); }
  50% { box-shadow: 0 0 0 7px rgba(55, 227, 210, .04); }
}

.page-contact {
  --ct-gap: clamp(1.25rem, 2.6vw, 2.25rem);
  --ct-hair: rgba(217, 210, 195, .16);
  --ct-hair-strong: rgba(217, 210, 195, .3);
  --ct-body-soft: rgba(246, 242, 233, .8);
  --ct-note: rgba(217, 210, 195, .72);
  position: relative;
  background:
    radial-gradient(90% 55% at 10% -8%, rgba(55, 227, 210, .10), transparent 62%),
    radial-gradient(80% 50% at 94% 2%, rgba(255, 107, 44, .09), transparent 60%);
  color: var(--paper-100);
  font-family: var(--font-sans);
  line-height: 1.8;
  letter-spacing: .01em;
  padding-block: clamp(1rem, 3vw, 2rem) clamp(3rem, 7vw, 5rem);
}

.page-contact .ct-shell {
  width: min(100% - 2 * var(--gutter), var(--shell));
  margin-inline: auto;
  display: grid;
  gap: clamp(1.75rem, 4vw, 3.25rem);
}

/* ---------- 首屏框景 ---------- */

.page-contact .ct-hero {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--ct-hair-strong);
  border-radius: var(--radius-l);
  padding: clamp(1.5rem, 4vw, 3rem);
  background: linear-gradient(142deg, rgba(18, 38, 64, .94), rgba(8, 20, 38, .97) 64%);
}

.page-contact .ct-hero::before {
  content: "";
  position: absolute;
  inset: 10px;
  border: 1px solid rgba(217, 210, 195, .09);
  border-radius: calc(var(--radius-l) - 6px);
  pointer-events: none;
}

.page-contact .ct-hero::after {
  content: "";
  position: absolute;
  top: 0;
  left: clamp(1.5rem, 4vw, 3rem);
  width: 72px;
  height: 3px;
  background: linear-gradient(90deg, var(--signal-500), var(--cyan-400));
  border-radius: 0 0 var(--radius-s) var(--radius-s);
}

.page-contact .ct-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: .55rem;
  margin: 0 0 1.15rem;
  font-family: var(--font-mono);
  font-size: .75rem;
  letter-spacing: .16em;
  color: var(--cyan-400);
}

.page-contact .ct-pulse {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--cyan-400);
  box-shadow: 0 0 0 3px rgba(55, 227, 210, .18);
  animation: ct-pulse 2.6s var(--ease) infinite;
}

.page-contact .ct-hero h1 {
  margin: 0 0 1.1rem;
  max-width: 24ch;
  font-size: clamp(1.85rem, 4.4vw, 3.1rem);
  font-weight: 700;
  letter-spacing: .07em;
  line-height: 1.2;
  color: var(--paper-100);
}

.page-contact .ct-lede {
  margin: 0 0 1.75rem;
  max-width: 62ch;
  font-size: clamp(.95rem, 1.05vw, 1.0625rem);
  line-height: 1.85;
  color: var(--ct-body-soft);
}

.page-contact .ct-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: .75rem;
  margin-bottom: clamp(1.5rem, 3vw, 2.25rem);
}

.page-contact .ct-hero-meta {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
  margin: 0;
  padding-top: 1.25rem;
  border-top: 1px solid var(--ct-hair);
}

.page-contact .ct-hero-meta dt {
  margin: 0 0 .3rem;
  font-family: var(--font-mono);
  font-size: .6875rem;
  letter-spacing: .13em;
  color: var(--warm-500);
}

.page-contact .ct-hero-meta dd {
  margin: 0;
  font-size: 1.0625rem;
  font-weight: 600;
  letter-spacing: .03em;
  color: var(--paper-100);
}

/* ---------- 左右分屏 ---------- */

.page-contact .ct-split {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--ct-gap);
  align-items: start;
}

.page-contact .ct-left,
.page-contact .ct-right {
  min-width: 0;
  display: grid;
  gap: var(--ct-gap);
}

/* ---------- 联系渠道 ---------- */

.page-contact .ct-channels {
  border: 1px solid var(--ct-hair);
  border-radius: var(--radius-l);
  padding: clamp(1.25rem, 3vw, 1.75rem);
  background: linear-gradient(158deg, rgba(18, 38, 64, .88), rgba(12, 27, 48, .94));
}

.page-contact .ct-channels-head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: .4rem 1rem;
  padding-bottom: 1rem;
  margin-bottom: 1.35rem;
  border-bottom: 1px solid var(--ct-hair);
}

.page-contact .ct-channels-head h2 {
  margin: 0;
  font-size: 1.35rem;
  font-weight: 700;
  letter-spacing: .07em;
}

.page-contact .ct-hours {
  display: inline-flex;
  align-items: center;
  gap: .45rem;
  margin: 0;
  font-family: var(--font-mono);
  font-size: .75rem;
  letter-spacing: .05em;
  color: var(--green-400);
}

.page-contact .ct-status-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--green-400);
  box-shadow: 0 0 0 3px rgba(66, 201, 154, .16);
}

.page-contact .ct-channel-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1.35rem;
}

.page-contact .ct-channel {
  display: grid;
  gap: .28rem;
  padding-left: .95rem;
  border-left: 2px solid var(--ct-hair-strong);
  transition: border-color .25s var(--ease);
}

.page-contact .ct-channel:hover {
  border-left-color: rgba(55, 227, 210, .55);
}

.page-contact .ct-channel-label {
  margin: 0;
  font-family: var(--font-mono);
  font-size: .6875rem;
  letter-spacing: .14em;
  color: var(--warm-500);
}

.page-contact .ct-channel-value {
  justify-self: start;
  font-size: clamp(1rem, 1.5vw, 1.125rem);
  font-weight: 600;
  line-height: 1.6;
  color: var(--paper-100);
  text-decoration: none;
  overflow-wrap: anywhere;
  border-bottom: 1px solid rgba(55, 227, 210, .35);
  padding-bottom: 2px;
  transition: color .2s var(--ease), border-color .2s var(--ease);
}

.page-contact a.ct-channel-value:hover,
.page-contact a.ct-channel-value:focus-visible {
  color: var(--cyan-400);
  border-bottom-color: var(--cyan-400);
}

.page-contact .ct-channel-value--plain {
  font-weight: 500;
  line-height: 1.7;
  border-bottom: none;
  padding-bottom: 0;
}

.page-contact .ct-channel-note {
  margin: .2rem 0 0;
  font-size: .8125rem;
  line-height: 1.72;
  color: var(--ct-note);
}

/* ---------- 联系节点信息图 ---------- */

.page-contact .ct-node {
  margin: 0;
  border: 1px solid var(--ct-hair);
  border-radius: var(--radius-l);
  overflow: hidden;
  background: var(--ink-800);
}

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

.page-contact .ct-node figcaption {
  padding: .85rem clamp(1rem, 2.5vw, 1.35rem);
  border-top: 1px solid var(--ct-hair);
  font-family: var(--font-mono);
  font-size: .75rem;
  letter-spacing: .06em;
  color: var(--warm-500);
}

/* ---------- 咨询流程 ---------- */

.page-contact .ct-process {
  border: 1px solid var(--ct-hair);
  border-radius: var(--radius-l);
  padding: clamp(1.25rem, 3vw, 2rem);
  background: rgba(12, 27, 48, .5);
}

.page-contact .ct-process h2 {
  margin: 0 0 .55rem;
  font-size: 1.35rem;
  font-weight: 700;
  letter-spacing: .07em;
}

.page-contact .ct-section-lede {
  margin: 0 0 1.5rem;
  font-size: .9375rem;
  line-height: 1.8;
  color: var(--ct-note);
}

.page-contact .ct-steps {
  list-style: none;
  margin: 0 0 1.5rem;
  padding: 0;
  display: grid;
  gap: .75rem;
}

.page-contact .ct-steps li {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: .85rem;
  padding: .85rem 1rem;
  border: 1px solid var(--ct-hair);
  border-left: 2px solid rgba(55, 227, 210, .5);
  border-radius: var(--radius-m);
  background: rgba(8, 20, 38, .55);
  transition: border-left-color .25s var(--ease), background .25s var(--ease);
}

.page-contact .ct-steps li:hover {
  border-left-color: var(--cyan-400);
  background: rgba(8, 20, 38, .78);
}

.page-contact .ct-step-num {
  padding-top: .28rem;
  font-family: var(--font-mono);
  font-size: .75rem;
  letter-spacing: .1em;
  color: var(--cyan-400);
}

.page-contact .ct-steps h3 {
  margin: 0 0 .2rem;
  font-size: 1rem;
  font-weight: 600;
  letter-spacing: .04em;
}

.page-contact .ct-steps p {
  margin: 0;
  font-size: .875rem;
  line-height: 1.72;
  color: var(--ct-note);
}

.page-contact .ct-process-figure {
  margin: 0;
  border: 1px solid var(--ct-hair);
  border-radius: var(--radius-m);
  overflow: hidden;
}

.page-contact .ct-process-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 12 / 7;
  object-fit: cover;
}

/* ---------- 折叠面板 ---------- */

.page-contact .ct-prep h2,
.page-contact .ct-path h2,
.page-contact .ct-scope h2,
.page-contact .ct-next h2 {
  margin: 0 0 .55rem;
  font-size: clamp(1.25rem, 2.2vw, 1.5rem);
  font-weight: 700;
  letter-spacing: .07em;
}

.page-contact .ct-prep-lede,
.page-contact .ct-path-lede {
  margin: 0 0 1.35rem;
  max-width: 68ch;
  font-size: .9375rem;
  line-height: 1.8;
  color: var(--ct-note);
}

.page-contact .ct-folds {
  display: grid;
  gap: .65rem;
}

.page-contact .ct-fold {
  border: 1px solid var(--ct-hair);
  border-radius: var(--radius-m);
  background: rgba(12, 27, 48, .62);
  overflow: hidden;
}

.page-contact .ct-fold > summary {
  display: flex;
  align-items: center;
  gap: .7rem;
  padding: .9rem 1.05rem;
  font-size: .9375rem;
  font-weight: 600;
  letter-spacing: .03em;
  color: var(--paper-100);
  cursor: pointer;
  list-style: none;
  transition: background .2s var(--ease);
}

.page-contact .ct-fold > summary::-webkit-details-marker {
  display: none;
}

.page-contact .ct-fold > summary:hover {
  background: rgba(55, 227, 210, .05);
}

.page-contact .ct-fold > summary::after {
  content: "+";
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 1.05rem;
  line-height: 1;
  color: var(--cyan-400);
}

.page-contact .ct-fold[open] > summary::after {
  content: "–";
}

.page-contact .ct-fold[open] > summary {
  border-bottom: 1px solid var(--ct-hair);
}

.page-contact .ct-fold-tag {
  flex: none;
  padding: .12rem .45rem;
  border-radius: var(--radius-s);
  background: var(--cyan-400);
  color: var(--ink-900);
  font-family: var(--font-mono);
  font-size: .6875rem;
  letter-spacing: .1em;
}

.page-contact .ct-checks {
  margin: 0;
  padding: .95rem 1.1rem .95rem 1.9rem;
  display: grid;
  gap: .45rem;
  font-size: .875rem;
  line-height: 1.72;
  color: var(--ct-body-soft);
}

.page-contact .ct-checks li::marker {
  color: var(--cyan-400);
}

/* ---------- 自查路径 ---------- */

.page-contact .ct-path-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: .75rem;
}

.page-contact .ct-path-list li {
  position: relative;
  padding: 1rem 1.1rem 1.1rem 1.15rem;
  border: 1px solid var(--ct-hair);
  border-radius: var(--radius-m);
  background: linear-gradient(120deg, rgba(18, 38, 64, .7), rgba(8, 20, 38, .55));
}

.page-contact .ct-path-list h3 {
  margin: 0 0 .35rem;
  font-size: 1rem;
  font-weight: 600;
  letter-spacing: .04em;
}

.page-contact .ct-path-list p {
  margin: 0 0 .7rem;
  font-size: .875rem;
  line-height: 1.72;
  color: var(--ct-note);
}

.page-contact .ct-path-link {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: .8125rem;
  letter-spacing: .05em;
  color: var(--cyan-400);
  text-decoration: none;
  border-bottom: 1px solid rgba(55, 227, 210, .35);
  padding-bottom: 1px;
  transition: color .2s var(--ease), border-color .2s var(--ease);
}

.page-contact .ct-path-link:hover,
.page-contact .ct-path-link:focus-visible {
  color: var(--paper-100);
  border-bottom-color: var(--paper-100);
}

/* ---------- 适用范围 ---------- */

.page-contact .ct-scope-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: .85rem;
}

.page-contact .ct-scope-col {
  padding: clamp(1.1rem, 2.5vw, 1.5rem);
  border-radius: var(--radius-l);
  border: 1px solid var(--ct-hair);
}

.page-contact .ct-scope-col h3 {
  margin: 0 0 .75rem;
  font-size: 1.0625rem;
  font-weight: 600;
  letter-spacing: .06em;
}

.page-contact .ct-scope-col--in {
  background: linear-gradient(150deg, rgba(55, 227, 210, .1), rgba(12, 27, 48, .8) 62%);
  border-color: rgba(55, 227, 210, .26);
}

.page-contact .ct-scope-col--in h3 {
  color: var(--cyan-400);
}

.page-contact .ct-scope-col--out {
  background: linear-gradient(150deg, rgba(230, 162, 60, .09), rgba(12, 27, 48, .8) 62%);
  border-color: rgba(230, 162, 60, .24);
}

.page-contact .ct-scope-col--out h3 {
  color: var(--amber-500);
}

.page-contact .ct-scope-col ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: .55rem;
  font-size: .875rem;
  line-height: 1.72;
  color: var(--ct-body-soft);
}

.page-contact .ct-scope-col li {
  padding-left: .95rem;
  border-left: 1px solid rgba(55, 227, 210, .35);
}

.page-contact .ct-scope-col p {
  margin: 0 0 .7rem;
  font-size: .875rem;
  line-height: 1.75;
  color: var(--ct-body-soft);
}

.page-contact .ct-scope-col--out .ct-path-link {
  color: var(--amber-500);
  border-bottom-color: rgba(230, 162, 60, .4);
}

.page-contact .ct-scope-col--out .ct-path-link:hover,
.page-contact .ct-scope-col--out .ct-path-link:focus-visible {
  color: var(--paper-100);
  border-bottom-color: var(--paper-100);
}

/* ---------- 继续浏览 ---------- */

.page-contact .ct-next {
  border-top: 1px solid var(--ct-hair-strong);
  padding-top: clamp(1.5rem, 3vw, 2.25rem);
}

.page-contact .ct-next-list {
  list-style: none;
  margin: 1.1rem 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: .6rem;
}

.page-contact .ct-next-list li {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: .3rem .8rem;
  padding: .75rem .9rem;
  border-radius: var(--radius-m);
  border: 1px solid var(--ct-hair);
  background: rgba(12, 27, 48, .45);
  transition: border-color .2s var(--ease), background .2s var(--ease);
}

.page-contact .ct-next-list li:hover {
  border-color: rgba(55, 227, 210, .35);
  background: rgba(18, 38, 64, .7);
}

.page-contact .ct-next-list a {
  font-size: .9375rem;
  font-weight: 600;
  letter-spacing: .04em;
  color: var(--paper-100);
  text-decoration: none;
}

.page-contact .ct-next-list a:hover,
.page-contact .ct-next-list a:focus-visible {
  color: var(--cyan-400);
}

.page-contact .ct-next-list span {
  font-size: .8125rem;
  color: var(--warm-500);
}

/* ---------- 焦点可见性 ---------- */

.page-contact a:focus-visible,
.page-contact summary:focus-visible {
  outline: 2px solid var(--link-400);
  outline-offset: 3px;
  border-radius: var(--radius-s);
}

/* ---------- 响应式 ---------- */

@media (min-width: 640px) {
  .page-contact .ct-hero-meta {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-contact .ct-hero-meta > div {
    padding-right: 1rem;
    border-right: 1px solid var(--ct-hair);
  }

  .page-contact .ct-hero-meta > div:last-child {
    border-right: none;
    padding-right: 0;
  }

  .page-contact .ct-next-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-contact .ct-split {
    grid-template-columns: minmax(0, .92fr) minmax(0, 1.08fr);
  }

  .page-contact .ct-scope-grid {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, .85fr);
  }

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

  .page-contact .ct-next-list {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-contact .ct-hero h1 {
    max-width: 20ch;
  }
}

@media (min-width: 1180px) {
  .page-contact .ct-hero {
    padding-inline: clamp(2.5rem, 5vw, 4rem);
  }

  .page-contact .ct-steps li {
    padding: 1rem 1.15rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .ct-pulse {
    animation: none;
  }

  .page-contact * {
    transition-duration: .001ms !important;
  }
}
<<<END>>>