.page-contact {
  --ct-soft: rgba(211, 222, 215, .82);
  --ct-faint: rgba(211, 222, 215, .68);
  background: var(--void);
  color: var(--mist);
  overflow-x: clip;
}

.page-contact .breadcrumb {
  padding: 20px 0 4px;
}

/* 顶部窄幅夜景开场 */
.page-contact .ct-strip {
  position: relative;
  height: clamp(150px, 26vw, 240px);
  overflow: hidden;
  border-top: 1px solid var(--line-soft);
  border-bottom: 1px solid var(--line);
}

.page-contact .ct-strip img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 42%;
  opacity: .5;
}

.page-contact .ct-strip::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(120% 90% at 18% 8%, rgba(78, 240, 190, .13), transparent 62%),
    linear-gradient(90deg, rgba(5, 15, 12, .94) 0%, rgba(5, 15, 12, .34) 52%, rgba(13, 33, 48, .9) 100%);
  pointer-events: none;
}

/* 标题区 */
.page-contact .ct-head {
  padding: clamp(40px, 6vw, 76px) 0 clamp(36px, 5vw, 60px);
}

.page-contact .ct-head .eyebrow {
  display: block;
  margin: 0 0 18px;
  color: var(--stand);
}

.page-contact .ct-h1 {
  margin: 0 0 24px;
  max-width: 17ch;
  font-family: var(--sans);
  font-size: clamp(2rem, 5vw, 3.4rem);
  font-weight: 800;
  line-height: 1.14;
  letter-spacing: -.02em;
  color: var(--mist);
}

.page-contact .ct-h1__em {
  font-style: normal;
  color: var(--cyan);
}

.page-contact .ct-lede {
  margin: 0;
  max-width: 62ch;
  font-size: var(--fs-b);
  line-height: 1.95;
  color: var(--mist);
}

/* 主体色带与分栏 */
.page-contact .ct-body {
  padding: clamp(44px, 6vw, 84px) 0 clamp(52px, 7vw, 96px);
}

.page-contact .ct-split {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(40px, 6vw, 60px);
}

/* 章节头 */
.page-contact .ct-sec + .ct-sec {
  margin-top: clamp(38px, 5vw, 60px);
}

.page-contact .ct-sec__head {
  display: flex;
  align-items: baseline;
  gap: 14px;
  margin-bottom: 26px;
  padding-bottom: 13px;
  border-bottom: 1px solid var(--line);
}

.page-contact .ct-sec__num {
  flex: none;
  font-family: var(--mono);
  font-size: var(--fs-n);
  letter-spacing: .08em;
  color: var(--flare);
}

.page-contact .ct-sec__title {
  margin: 0;
  font-size: clamp(1.15rem, 1.9vw, 1.4rem);
  font-weight: 700;
  letter-spacing: -.01em;
  color: var(--mist);
}

/* 联系信息定义列表 */
.page-contact .ct-defs {
  margin: 0;
}

.page-contact .ct-def {
  padding: 22px 0;
  border-top: 1px solid var(--line-soft);
}

.page-contact .ct-def:first-child {
  border-top: 0;
  padding-top: 0;
}

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

.page-contact .ct-def dt {
  margin-bottom: 10px;
  font-size: var(--fs-c);
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--stand);
}

.page-contact .ct-def dd {
  margin: 0;
}

.page-contact .ct-copy {
  display: inline-block;
  max-width: 100%;
  font-family: var(--mono);
  font-size: clamp(1.05rem, 2.4vw, 1.32rem);
  font-variant-numeric: tabular-nums;
  letter-spacing: .01em;
  color: var(--cyan);
  text-decoration: none;
  overflow-wrap: anywhere;
  border-bottom: 1px solid rgba(78, 240, 190, .38);
  padding-bottom: 3px;
  transition: color .18s var(--ease), border-color .18s var(--ease);
}

.page-contact .ct-copy:hover,
.page-contact .ct-copy:focus-visible {
  color: #8BFFD8;
  border-bottom-color: var(--cyan);
}

.page-contact .ct-copy:focus-visible {
  outline: 2px solid var(--violet);
  outline-offset: 4px;
  border-radius: 2px;
}

.page-contact .ct-addr {
  margin: 0;
  font-size: var(--fs-t);
  font-weight: 700;
  letter-spacing: -.01em;
  color: var(--mist);
}

.page-contact .ct-def__note {
  margin: 12px 0 0;
  max-width: 54ch;
  font-size: .95rem;
  line-height: 1.88;
  color: var(--ct-soft);
}

/* 抽象方位图 */
.page-contact .ct-map {
  position: relative;
  width: 100%;
  max-width: 320px;
  height: 116px;
  margin-top: 16px;
  border: 1px solid var(--line);
  background-color: rgba(5, 15, 12, .55);
  background-image:
    repeating-linear-gradient(0deg, transparent 0 22px, rgba(126, 148, 136, .11) 22px 23px),
    repeating-linear-gradient(90deg, transparent 0 22px, rgba(126, 148, 136, .11) 22px 23px);
  overflow: hidden;
}

.page-contact .ct-map__road {
  position: absolute;
  background: rgba(78, 240, 190, .2);
}

.page-contact .ct-map__road--h {
  left: 0;
  right: 0;
  top: 58%;
  height: 3px;
}

.page-contact .ct-map__road--v {
  top: 0;
  bottom: 0;
  left: 38%;
  width: 3px;
}

.page-contact .ct-map__pin {
  position: absolute;
  left: 38%;
  top: 58%;
  width: 10px;
  height: 10px;
  margin: -5px 0 0 -5px;
  border-radius: 50%;
  background: var(--flare);
  box-shadow: 0 0 0 5px rgba(255, 138, 61, .18);
}

/* 咨询要素清单 */
.page-contact .ct-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-contact .ct-list li {
  display: grid;
  grid-template-columns: 26px minmax(0, 1fr);
  gap: 12px;
  padding: 16px 0;
  border-top: 1px solid var(--line-soft);
}

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

.page-contact .ct-list__idx {
  padding-top: 2px;
  font-family: var(--mono);
  font-size: var(--fs-c);
  letter-spacing: .08em;
  color: var(--flare);
}

.page-contact .ct-list strong {
  display: block;
  margin-bottom: 5px;
  font-size: var(--fs-b);
  font-weight: 700;
  color: var(--mist);
}

.page-contact .ct-list p {
  margin: 0;
  font-size: .95rem;
  line-height: 1.85;
  color: var(--ct-soft);
}

/* 邮件写法示例 */
.page-contact .ct-sample {
  margin-top: 20px;
  padding: 18px 20px;
  border: 1px solid var(--line);
  border-left: 2px solid var(--cyan);
  background: rgba(13, 33, 48, .68);
}

.page-contact .ct-sample__label {
  margin: 0 0 9px;
  font-size: var(--fs-c);
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--cyan);
}

.page-contact .ct-sample__text {
  margin: 0;
  font-size: .95rem;
  line-height: 1.88;
  color: var(--ct-soft);
}

/* 合作与纠错 */
.page-contact .ct-pair {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 0;
}

.page-contact .ct-pair__item {
  padding: 18px 0;
  border-top: 1px solid var(--line-soft);
}

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

.page-contact .ct-pair__item h3 {
  margin: 0 0 9px;
  font-size: var(--fs-b);
  font-weight: 700;
  letter-spacing: -.005em;
  color: var(--mist);
}

.page-contact .ct-pair__item p {
  margin: 0;
  font-size: .95rem;
  line-height: 1.88;
  color: var(--ct-soft);
}

.page-contact .ct-footline {
  margin: 22px 0 0;
  font-size: .95rem;
  line-height: 1.9;
  color: var(--ct-faint);
}

.page-contact .ct-footline a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(78, 240, 190, .34);
  transition: border-color .18s var(--ease);
}

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

.page-contact .ct-footline a:focus-visible {
  outline: 2px solid var(--violet);
  outline-offset: 3px;
}

/* 右栏：反馈流程 */
.page-contact .ct-aside {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 22px;
  align-content: start;
}

.page-contact .ct-flow {
  padding: clamp(20px, 3vw, 28px);
  border: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(13, 33, 48, .92) 0%, rgba(10, 29, 24, .92) 100%);
}

.page-contact .ct-flow__head {
  padding-bottom: 18px;
  margin-bottom: 20px;
  border-bottom: 1px solid var(--line-soft);
}

.page-contact .ct-flow__num {
  display: block;
  margin-bottom: 8px;
  font-family: var(--mono);
  font-size: var(--fs-n);
  letter-spacing: .08em;
  color: var(--flare);
}

.page-contact .ct-flow__title {
  margin: 0 0 10px;
  font-size: clamp(1.15rem, 1.9vw, 1.4rem);
  font-weight: 700;
  letter-spacing: -.01em;
  color: var(--mist);
}

.page-contact .ct-flow__sub {
  margin: 0;
  font-size: .9rem;
  line-height: 1.82;
  color: var(--ct-faint);
}

.page-contact .ct-steps {
  position: relative;
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-contact .ct-steps::before {
  content: "";
  position: absolute;
  left: 15px;
  top: 18px;
  bottom: 20px;
  width: 1px;
  background: linear-gradient(180deg, rgba(78, 240, 190, .55), rgba(78, 240, 190, .06));
}

.page-contact .ct-step {
  position: relative;
}

.page-contact .ct-step summary {
  display: grid;
  grid-template-columns: 32px minmax(0, 1fr) auto;
  align-items: center;
  gap: 12px;
  padding: 11px 0;
  cursor: pointer;
  list-style: none;
}

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

.page-contact .ct-step summary:focus-visible {
  outline: 2px solid var(--violet);
  outline-offset: 4px;
  border-radius: 3px;
}

.page-contact .ct-step summary::after {
  content: "+";
  font-family: var(--mono);
  font-size: var(--fs-n);
  color: var(--stand);
  transition: color .18s var(--ease);
}

.page-contact .ct-step details[open] summary::after {
  content: "–";
  color: var(--cyan);
}

.page-contact .ct-step__num {
  display: grid;
  place-items: center;
  width: 32px;
  height: 32px;
  border: 1px solid var(--line);
  border-radius: 50%;
  background: var(--void);
  font-family: var(--mono);
  font-size: 11px;
  font-variant-numeric: tabular-nums;
  letter-spacing: .04em;
  color: var(--cyan);
}

.page-contact .ct-step__title {
  font-size: var(--fs-b);
  font-weight: 700;
  letter-spacing: -.005em;
  color: var(--mist);
}

.page-contact .ct-step__body {
  padding: 0 0 16px 44px;
}

.page-contact .ct-step__body p {
  margin: 0;
  font-size: .92rem;
  line-height: 1.86;
  color: var(--ct-soft);
}

/* 右栏旁注 */
.page-contact .ct-side-note {
  padding: 18px 20px;
  border: 1px solid var(--line);
  border-top: 2px solid var(--flare);
  background: rgba(5, 15, 12, .62);
}

.page-contact .ct-side-note__label {
  margin: 0 0 8px;
  font-size: var(--fs-c);
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--flare);
}

.page-contact .ct-side-note__text {
  margin: 0 0 12px;
  font-size: .92rem;
  line-height: 1.82;
  color: var(--ct-soft);
}

.page-contact .ct-side-note__link {
  display: inline-block;
  font-size: .92rem;
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(78, 240, 190, .34);
}

.page-contact .ct-side-note__link:focus-visible {
  outline: 2px solid var(--violet);
  outline-offset: 3px;
}

/* 页尾城市夜色 */
.page-contact .ct-endcap {
  margin: clamp(44px, 6vw, 88px) 0 0;
  border-top: 1px solid var(--line);
}

.page-contact .ct-endcap img {
  display: block;
  width: 100%;
  height: clamp(170px, 28vw, 290px);
  object-fit: cover;
  opacity: .42;
  max-width: 100%;
}

.page-contact .ct-endcap figcaption {
  padding: 14px 0 36px;
  font-size: var(--fs-n);
  letter-spacing: .04em;
  color: var(--stand);
}

/* 桌面端非对称双栏 */
@media (min-width: 920px) {
  .page-contact .ct-split {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: 72px;
  }

  .page-contact .ct-aside {
    position: sticky;
    top: calc(var(--bar-h) + 28px);
    align-self: start;
  }

  .page-contact .ct-pair {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    column-gap: 32px;
  }

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

@media (min-width: 1180px) {
  .page-contact .ct-lists-2 {
    column-count: 2;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .ct-copy,
  .page-contact .ct-step summary::after,
  .page-contact .ct-footline a {
    transition: none;
  }
}
<<<END>>>