.page-contact {
  --ct-gap: clamp(14px, 2vw, 22px);
  --ct-rule: 1px solid var(--steel);
}

/* ---------- 首屏 ---------- */
.page-contact .ct-hero {
  position: relative;
  padding: clamp(22px, 4vw, 56px) 0 clamp(26px, 4.4vw, 60px);
  border-bottom: var(--ct-rule);
  background:
    radial-gradient(120% 100% at 88% -10%, rgba(53, 240, 192, 0.10), transparent 62%),
    linear-gradient(180deg, rgba(22, 35, 61, 0.55), transparent 72%);
}

.page-contact .ct-hero__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(20px, 3vw, 40px);
  align-items: start;
  margin-top: clamp(16px, 2.4vw, 28px);
}

.page-contact .ct-hero__lead .lede {
  margin-top: 16px;
}

.page-contact .ct-hero__lead .btn-group {
  margin-top: clamp(18px, 2.6vw, 28px);
}

.page-contact .ct-hero__aside {
  padding: clamp(16px, 2.2vw, 24px);
  background: var(--slate);
}

.page-contact .ct-quick__label {
  margin: 0;
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--mint);
}

.page-contact .ct-quick {
  list-style: none;
  margin: 14px 0 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-contact .ct-quick li {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 8px 10px;
  padding-bottom: 12px;
  border-bottom: 1px dashed rgba(42, 61, 99, 0.9);
  font-size: 15px;
}

.page-contact .ct-quick li:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}

.page-contact .ct-quick .mono {
  word-break: break-all;
}

/* ---------- 章节标题 ---------- */
.page-contact .ct-head {
  margin-bottom: clamp(22px, 3vw, 36px);
  align-items: start;
}

.page-contact .ct-head .lede {
  margin: 0;
}

/* ---------- 渠道卡 ---------- */
.page-contact .ct-channels {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--ct-gap);
}

.page-contact .ct-ch {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: clamp(20px, 2.4vw, 30px);
  padding-top: clamp(24px, 2.8vw, 34px);
  background: var(--slate);
  border: var(--ct-rule);
  transition: border-color 0.28s var(--ease), transform 0.28s var(--ease);
}

.page-contact .ct-ch::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 3px;
  background: var(--steel);
}

.page-contact .ct-ch--mail::before {
  background: var(--mint);
}

.page-contact .ct-ch--phone::before {
  background: var(--mint-deep);
}

.page-contact .ct-ch--visit::before {
  background: var(--paper);
}

.page-contact .ct-ch:hover,
.page-contact .ct-ch:focus-within,
.page-contact .ct-ch:focus {
  border-color: var(--mint-deep);
  transform: translateY(-3px);
  outline: none;
}

.page-contact .ct-ch:focus-visible {
  outline: 2px solid var(--mint);
  outline-offset: 2px;
}

.page-contact .ct-ch__no {
  margin: 0;
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--mint);
}

.page-contact .ct-ch__title {
  margin: 0;
  font-size: clamp(19px, 2.2vw, 23px);
  letter-spacing: 0.01em;
}

.page-contact .ct-ch__val {
  margin: 0;
  font-size: clamp(14px, 1.6vw, 17px);
  line-height: 1.7;
  color: var(--text);
  word-break: break-word;
}

.page-contact .ct-ch__desc {
  margin: 0;
  font-size: 15px;
  color: var(--muted);
}

.page-contact .ct-ch__use {
  margin: 0;
  padding-left: 12px;
  border-left: 2px solid var(--mint-deep);
  font-size: 14px;
  color: var(--text);
  opacity: 1;
  max-height: 240px;
  transition: max-height 0.35s var(--ease), opacity 0.35s var(--ease), transform 0.35s var(--ease);
}

.page-contact .ct-channels__figure {
  margin: var(--ct-gap) 0 0;
}

/* ---------- 回复节奏 ---------- */
.page-contact .ct-rhythm__lead p {
  margin: 0 0 12px;
}

.page-contact .ct-rhythm__lead h2 {
  margin-bottom: 14px;
}

.page-contact .ct-timeline {
  padding: clamp(16px, 2.4vw, 26px);
  border: var(--ct-rule);
  background: linear-gradient(180deg, rgba(22, 35, 61, 0.72), rgba(10, 20, 40, 0.42));
}

.page-contact .ct-timeline__axis {
  display: flex;
  justify-content: space-between;
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--muted);
}

.page-contact .ct-timeline__bar {
  position: relative;
  height: 10px;
  margin: 10px 0 20px;
  background: var(--ink-deep);
  border: 1px solid var(--steel);
  overflow: hidden;
}

.page-contact .ct-timeline__fill {
  position: absolute;
  inset: 0 32% 0 0;
  background: linear-gradient(90deg, var(--mint-deep), var(--mint));
}

.page-contact .ct-timeline__after {
  position: absolute;
  inset: 0 0 0 68%;
  background: repeating-linear-gradient(135deg, rgba(169, 183, 204, 0.24) 0 6px, transparent 6px 12px);
}

.page-contact .ct-timeline__notes {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
}

.page-contact .ct-timeline__note {
  display: grid;
  gap: 4px;
  padding-left: 12px;
  border-left: 2px solid var(--mint);
  font-size: 14px;
}

.page-contact .ct-timeline__note strong {
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--mint);
}

.page-contact .ct-timeline__note span {
  color: var(--muted);
}

/* ---------- 纠错写法 ---------- */
.page-contact .ct-code {
  margin-top: clamp(20px, 2.6vw, 28px);
  border: 1px solid var(--steel);
  background: var(--ink-deep);
}

.page-contact .ct-code__bar {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 8px;
  padding: 9px 14px;
  border-bottom: 1px solid var(--steel);
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--mint);
}

.page-contact .ct-code__pre {
  margin: 0;
  padding: clamp(14px, 2vw, 22px);
  font-size: clamp(12px, 1.5vw, 14px);
  line-height: 1.95;
  color: var(--text);
  white-space: pre-wrap;
  word-break: break-word;
  overflow-x: auto;
}

.page-contact .ct-fixside {
  padding: clamp(18px, 2.4vw, 26px);
  align-self: start;
}

.page-contact .ct-fixside .panel__title {
  margin-top: 0;
}

.page-contact .ct-fixside ul {
  list-style: none;
  margin: 14px 0 0;
  padding: 0;
}

.page-contact .ct-fixside li {
  padding: 11px 0;
  border-bottom: 1px solid var(--paper-edge);
  font-size: 15px;
  line-height: 1.7;
}

.page-contact .ct-fixside li:last-child {
  border-bottom: 0;
}

.page-contact .ct-fixside li strong {
  display: inline-block;
  margin-right: 8px;
}

.page-contact .ct-fixside .muted {
  margin: 14px 0 0;
  font-size: 13px;
  line-height: 1.75;
}

/* ---------- 合作对接 ---------- */
.page-contact .ct-coop {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(18px, 2.4vw, 26px);
}

.page-contact .ct-coop__item {
  padding-top: 14px;
  border-top: 2px solid var(--mint);
}

.page-contact .ct-coop__item:nth-child(2) {
  border-top-color: var(--mint-deep);
}

.page-contact .ct-coop__item:nth-child(3) {
  border-top-color: var(--paper);
}

.page-contact .ct-coop__item h3 {
  margin: 0 0 8px;
  font-size: clamp(17px, 2vw, 20px);
}

.page-contact .ct-coop__item p {
  margin: 0;
  font-size: 14px;
  color: var(--muted);
}

.page-contact .ct-coop__item ul {
  list-style: none;
  margin: 12px 0 0;
  padding: 0;
  display: grid;
  gap: 8px;
  font-size: 14px;
}

.page-contact .ct-coop__item li::before {
  content: "◇";
  margin-right: 8px;
  color: var(--mint);
}

/* ---------- 到访与周边 ---------- */
.page-contact .ct-facts {
  margin: clamp(18px, 2.4vw, 26px) 0;
  display: grid;
  border-top: var(--ct-rule);
}

.page-contact .ct-facts > div {
  display: grid;
  gap: 5px;
  padding: 13px 0;
  border-bottom: var(--ct-rule);
}

.page-contact .ct-facts dt {
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--mint);
}

.page-contact .ct-facts dd {
  margin: 0;
  font-size: 15px;
  line-height: 1.7;
}

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

/* ---------- 反馈入口 ---------- */
.page-contact .ct-fb {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(18px, 3vw, 32px);
  padding: clamp(20px, 3vw, 36px);
  background: linear-gradient(135deg, rgba(22, 35, 61, 0.95), rgba(6, 13, 28, 0.95));
}

.page-contact .ct-fb h2 {
  margin-top: 6px;
  margin-bottom: 12px;
}

.page-contact .ct-fb p {
  margin: 0;
}

.page-contact .ct-fb__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0;
  align-content: center;
}

.page-contact .ct-fb__list li {
  display: flex;
  gap: 12px;
  align-items: baseline;
  padding: 12px 0;
  border-bottom: 1px dashed var(--steel);
  font-size: 15px;
}

.page-contact .ct-fb__list li:last-child {
  border-bottom: 0;
}

.page-contact .ct-fb__list .mono {
  flex: 0 0 auto;
  font-size: 13px;
  color: var(--mint);
}

/* ---------- 相关入口 ---------- */
.page-contact .ct-next__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
  margin-top: 18px;
}

.page-contact .ct-next__link {
  display: flex;
  gap: 12px;
  align-items: baseline;
  padding: 14px 16px;
  border: var(--ct-rule);
  color: var(--text);
  text-decoration: none;
  font-size: 15px;
  line-height: 1.65;
  transition: border-color 0.25s var(--ease), background 0.25s var(--ease);
}

.page-contact .ct-next__link:hover,
.page-contact .ct-next__link:focus-visible {
  border-color: var(--mint);
  background: rgba(53, 240, 192, 0.07);
}

.page-contact .ct-next__link .mono {
  flex: 0 0 auto;
  color: var(--mint);
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-contact .ct-timeline__notes {
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
  }
}

@media (min-width: 760px) {
  .page-contact .ct-coop {
    grid-template-columns: 1.25fr 1fr 1fr;
  }

  .page-contact .ct-next__grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (min-width: 860px) {
  .page-contact .ct-channels {
    grid-template-columns: 1.35fr 1fr 0.85fr;
  }

  .page-contact .ct-fb {
    grid-template-columns: 6fr 5fr;
    align-items: center;
  }
}

@media (min-width: 900px) {
  .page-contact .ct-hero__grid {
    grid-template-columns: 7fr 5fr;
  }

  .page-contact .ct-facts > div {
    grid-template-columns: 108px 1fr;
    gap: 18px;
    align-items: baseline;
  }
}

@media (hover: hover) and (pointer: fine) {
  .page-contact .ct-ch__use {
    max-height: 0;
    opacity: 0;
    transform: translateY(-4px);
    overflow: hidden;
  }

  .page-contact .ct-ch:hover .ct-ch__use,
  .page-contact .ct-ch:focus-within .ct-ch__use {
    max-height: 240px;
    opacity: 1;
    transform: none;
  }
}

@media (max-width: 520px) {
  .page-contact .ct-timeline__axis {
    font-size: 11px;
    letter-spacing: 0.06em;
  }

  .page-contact .ct-fb__list li {
    flex-direction: column;
    gap: 4px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .ct-ch,
  .page-contact .ct-ch__use,
  .page-contact .ct-next__link {
    transition: none;
  }

  .page-contact .ct-ch:hover,
  .page-contact .ct-ch:focus-within,
  .page-contact .ct-ch:focus {
    transform: none;
  }
}
<<<END>>>