.page-contact {
  --ct-gap: 20px;
  background: var(--abyss);
  color: var(--ice);
  font-family: var(--font-sans);
  line-height: 1.75;
  overflow-x: hidden;
}

@media (min-width: 768px) {
  .page-contact { --ct-gap: 32px; }
}

@media (min-width: 1280px) {
  .page-contact { --ct-gap: 48px; }
}

.page-contact .ct-shell {
  width: 100%;
  max-width: var(--maxw);
  margin-inline: auto;
  padding-inline: var(--ct-gap);
  box-sizing: border-box;
}

/* 面包屑 */
.page-contact .breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
  padding-block: 18px 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--steel);
}

.page-contact .breadcrumbs a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color .2s var(--ease), border-color .2s var(--ease);
}

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

/* 首屏 */
.page-contact .ct-hero {
  padding-block: 26px 54px;
}

.page-contact .ct-hero__grid {
  display: grid;
  gap: 34px;
}

@media (min-width: 960px) {
  .page-contact .ct-hero__grid {
    grid-template-columns: minmax(0, 1.02fr) minmax(0, 1fr);
    gap: 52px;
    align-items: start;
  }
}

.page-contact .ct-hero__lead { min-width: 0; }

.page-contact .ct-hero__title {
  margin: 10px 0 16px;
  font-size: clamp(32px, 7vw, 56px);
  font-weight: 900;
  line-height: 1.05;
  letter-spacing: -.03em;
  color: var(--ice);
}

.page-contact .ct-hero__intro {
  margin: 0 0 26px;
  max-width: 46ch;
  font-size: 16px;
  line-height: 1.78;
  color: var(--steel);
}

@media (min-width: 960px) {
  .page-contact .ct-hero__intro { font-size: 17px; }
}

/* 抽象图面 */
.page-contact .ct-figure {
  position: relative;
  margin: 0;
  border: 1px solid var(--line);
  background: var(--tactical);
  overflow: hidden;
}

.page-contact .ct-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  filter: grayscale(.4) contrast(1.08) brightness(.8);
}

.page-contact .ct-figure::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    repeating-linear-gradient(90deg, rgba(25, 227, 208, .15) 0 1px, transparent 1px 56px),
    repeating-linear-gradient(0deg, rgba(25, 227, 208, .15) 0 1px, transparent 1px 56px);
}

.page-contact .ct-figure__rule {
  display: flex;
  justify-content: space-between;
  gap: 10px;
  margin-top: -1px;
  padding: 7px 11px;
  border: 1px solid var(--line);
  background: rgba(6, 24, 38, .92);
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: .14em;
  color: var(--cyan);
}

/* 联系卡 */
.page-contact .ct-hero__side { min-width: 0; }

.page-contact .ct-cards {
  display: grid;
  gap: 14px;
  margin-top: 30px;
}

@media (min-width: 960px) {
  .page-contact .ct-cards { margin-top: 0; }
  .page-contact .ct-card:nth-child(2) { margin-inline-start: 16px; }
  .page-contact .ct-card:nth-child(3) { margin-inline-start: 32px; }
}

.page-contact .ct-card {
  position: relative;
  padding: 22px 18px 20px;
  background: linear-gradient(152deg, var(--tactical) 0%, var(--panel) 100%);
  border: 1px solid var(--line);
  border-left: 3px solid var(--cyan);
  box-shadow: 6px 6px 0 rgba(25, 227, 208, .07);
  transition: transform .25s var(--ease), box-shadow .25s var(--ease),
              border-color .25s var(--ease);
}

.page-contact .ct-card:hover,
.page-contact .ct-card:focus-within {
  transform: translateY(-4px);
  border-color: var(--amber);
  border-left-color: var(--amber);
  box-shadow: 8px 12px 0 rgba(245, 165, 36, .14);
}

.page-contact .ct-card__stamp {
  position: absolute;
  top: -1px;
  right: -1px;
  padding: 3px 10px 2px;
  background: var(--abyss);
  border: 1px solid var(--line);
  color: var(--cyan);
  font-size: 11px;
  letter-spacing: .16em;
  transition: transform .25s var(--ease), color .25s var(--ease),
              border-color .25s var(--ease);
}

.page-contact .ct-card:hover .ct-card__stamp,
.page-contact .ct-card:focus-within .ct-card__stamp {
  transform: translate(5px, -5px);
  color: var(--amber);
  border-color: var(--amber);
}

.page-contact .ct-card__kicker {
  margin: 0;
  font-size: 11px;
  letter-spacing: .2em;
  color: var(--steel);
}

.page-contact .ct-card__title {
  margin: 6px 0 12px;
  font-size: 19px;
  font-weight: 800;
  letter-spacing: -.01em;
  color: var(--ice);
}

.page-contact .ct-card__value {
  margin: 0 0 12px;
  padding: 10px 12px;
  background: rgba(6, 24, 38, .72);
  border: 1px dashed var(--line);
  font-family: var(--font-mono);
  font-size: 15px;
  font-weight: 500;
  line-height: 1.5;
  letter-spacing: .01em;
  color: var(--ice);
  overflow-wrap: anywhere;
}

.page-contact .ct-card__note {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--steel);
}

.page-contact .ct-card__link {
  display: inline-block;
  margin-top: 12px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .05em;
  color: var(--amber);
  text-decoration: none;
  border-bottom: 1px solid rgba(245, 165, 36, .45);
  transition: border-color .2s var(--ease);
}

.page-contact .ct-card__link:hover,
.page-contact .ct-card__link:focus-visible {
  border-bottom-color: var(--amber);
}

/* 回复时段条 */
.page-contact .ct-clock {
  margin: 18px 0 0;
  padding: 14px 16px;
  background: rgba(245, 165, 36, .09);
  border-left: 3px solid var(--amber);
  font-size: 13.5px;
  line-height: 1.72;
  color: var(--ice);
}

@media (min-width: 960px) {
  .page-contact .ct-clock { margin-inline-start: 32px; }
}

/* 章节通用 */
.page-contact .ct-section {
  padding-block: 48px;
  border-top: 1px solid var(--line);
}

@media (min-width: 900px) {
  .page-contact .ct-section { padding-block: 68px; }
}

.page-contact .ct-section--band {
  background: var(--tactical);
  border-bottom: 1px solid var(--line);
}

.page-contact .ct-head {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  margin-bottom: 26px;
}

.page-contact .ct-head .section-num {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 30px;
  font-weight: 600;
  line-height: 1;
  letter-spacing: -.04em;
  padding-top: 4px;
}

@media (min-width: 900px) {
  .page-contact .ct-head .section-num { font-size: 40px; }
}

.page-contact .ct-head__label {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .2em;
  color: var(--steel);
}

.page-contact .ct-head__title {
  margin: 6px 0 0;
  font-size: clamp(23px, 4.6vw, 32px);
  font-weight: 900;
  line-height: 1.24;
  letter-spacing: -.02em;
  color: var(--ice);
}

/* 咨询准备清单 */
.page-contact .ct-prep {
  list-style: none;
  display: grid;
  gap: 1px;
  margin: 0;
  padding: 0;
  background: var(--line);
  border: 1px solid var(--line);
}

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

.page-contact .ct-prep li {
  padding: 18px;
  background: var(--abyss);
}

.page-contact .ct-prep__k {
  display: block;
  margin-bottom: 6px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--amber);
}

.page-contact .ct-prep p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.72;
  color: var(--steel);
}

.page-contact .ct-prep strong {
  color: var(--ice);
  font-weight: 700;
}

/* 合作方式 */
.page-contact .ct-collab {
  display: grid;
  gap: 16px;
}

@media (min-width: 860px) {
  .page-contact .ct-collab { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}

.page-contact .ct-collab__item {
  padding: 22px 18px;
  background: var(--abyss);
  border: 1px solid var(--line);
  border-top: 2px solid var(--cyan);
  transition: transform .25s var(--ease), border-top-color .25s var(--ease);
}

.page-contact .ct-collab__item:hover {
  transform: translateY(-4px);
  border-top-color: var(--amber);
}

.page-contact .ct-collab__idx {
  margin: 0;
  font-size: 12px;
  letter-spacing: .2em;
  color: var(--cyan);
}

.page-contact .ct-collab__name {
  margin: 8px 0 10px;
  font-size: 18px;
  font-weight: 800;
  letter-spacing: -.01em;
  color: var(--ice);
}

.page-contact .ct-collab__desc {
  margin: 0;
  font-size: 14px;
  line-height: 1.74;
  color: var(--steel);
}

.page-contact .ct-collab__foot {
  margin: 24px 0 0;
  padding-left: 14px;
  border-left: 2px solid var(--amber);
  font-size: 14px;
  line-height: 1.78;
  color: var(--steel);
}

/* 办公地点 */
.page-contact .ct-visit {
  display: grid;
  gap: 28px;
}

@media (min-width: 900px) {
  .page-contact .ct-visit {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr);
    gap: 44px;
    align-items: start;
  }
}

.page-contact .ct-visit__addr {
  margin: 0 0 16px;
  padding-left: 16px;
  border-left: 3px solid var(--cyan);
  font-family: var(--font-mono);
  font-size: 15px;
  line-height: 1.85;
  color: var(--ice);
  overflow-wrap: anywhere;
}

.page-contact .ct-visit__note {
  margin: 0 0 22px;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--steel);
}

.page-contact .ct-visit__media { min-width: 0; }

.page-contact .ct-visit__coord {
  margin: 10px 0 0;
  font-size: 11px;
  letter-spacing: .14em;
  color: var(--steel);
}

/* 手风琴 */
.page-contact .ct-details {
  border: 1px solid var(--line);
  background: rgba(11, 43, 69, .62);
}

.page-contact .ct-details + .ct-details { margin-top: 10px; }

.page-contact .ct-details > summary {
  position: relative;
  display: block;
  cursor: pointer;
  padding: 14px 46px 14px 16px;
  font-size: 15px;
  font-weight: 700;
  line-height: 1.6;
  color: var(--ice);
  list-style: none;
  transition: color .2s var(--ease), background-color .2s var(--ease);
}

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

.page-contact .ct-details > summary::after {
  content: "+";
  position: absolute;
  top: 50%;
  right: 16px;
  transform: translateY(-50%);
  font-family: var(--font-mono);
  font-size: 19px;
  line-height: 1;
  color: var(--amber);
}

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

.page-contact .ct-details[open] > summary {
  color: var(--cyan);
  background: rgba(25, 227, 208, .06);
  border-bottom: 1px solid var(--line);
}

.page-contact .ct-details > summary:hover { color: var(--amber); }

.page-contact .ct-details__body {
  padding: 14px 16px 18px;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--steel);
}

.page-contact .ct-details__body p { margin: 0 0 10px; }
.page-contact .ct-details__body p:last-child { margin-bottom: 0; }

.page-contact .ct-details__body a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(25, 227, 208, .4);
  transition: color .2s var(--ease), border-color .2s var(--ease);
}

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

/* 延伸阅读 */
.page-contact .ct-more {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 22px;
  margin-top: 34px;
  padding-top: 24px;
  border-top: 1px solid var(--line);
}

.page-contact .ct-more__label {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .18em;
  color: var(--steel);
}

.page-contact .ct-more a {
  font-size: 14px;
  color: var(--cyan);
  text-decoration: none;
  padding-bottom: 1px;
  border-bottom: 1px solid rgba(25, 227, 208, .35);
  transition: color .2s var(--ease), border-color .2s var(--ease);
}

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

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

@media (prefers-reduced-motion: reduce) {
  .page-contact .ct-card,
  .page-contact .ct-card__stamp,
  .page-contact .ct-collab__item,
  .page-contact .ct-details > summary {
    transition: none;
  }
  .page-contact .ct-card:hover,
  .page-contact .ct-card:focus-within,
  .page-contact .ct-collab__item:hover {
    transform: none;
  }
  .page-contact .ct-card:hover .ct-card__stamp,
  .page-contact .ct-card:focus-within .ct-card__stamp {
    transform: none;
  }
}