.page-contact {
  --ct-pad: clamp(16px, 2.2vw, 24px);
  --ct-block-gap: clamp(20px, 3vw, 36px);
}

/* ---------- 首屏 ---------- */

.page-contact .ct-hero {
  position: relative;
  padding-top: clamp(20px, 4vw, 44px);
  border-bottom: 1px solid var(--sk-line);
}

.page-contact .ct-hero .sk-crumb {
  margin-bottom: clamp(14px, 2vw, 22px);
}

.page-contact .ct-hero__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(22px, 4vw, 56px);
  align-items: end;
  padding-bottom: clamp(26px, 4vw, 48px);
}

@media (min-width: 880px) {
  .page-contact .ct-hero__grid {
    grid-template-columns: minmax(0, 1.34fr) minmax(0, .66fr);
  }
}

.page-contact .ct-hero__lead .sk-eyebrow {
  display: block;
  margin-bottom: 12px;
}

.page-contact .ct-hero__lead .sk-lede {
  max-width: 36em;
}

.page-contact .ct-quick {
  position: relative;
  display: grid;
  gap: 12px;
  padding: var(--ct-pad);
  background:
    linear-gradient(142deg, rgba(110, 75, 255, .18), rgba(20, 27, 51, .9) 64%);
  border: 1px solid var(--sk-line);
  border-left: 2px solid var(--sk-purple);
}

.page-contact .ct-quick::before {
  content: "";
  position: absolute;
  top: -1px;
  right: -1px;
  width: 14px;
  height: 14px;
  border-top: 1px solid var(--sk-cyan);
  border-right: 1px solid var(--sk-cyan);
  pointer-events: none;
}

.page-contact .ct-quick__title {
  margin: 0;
  font-family: var(--sk-font-mono);
  font-size: 11px;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--sk-cyan);
}

.page-contact .ct-quick__row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  min-width: 0;
}

.page-contact .ct-quick__label {
  flex: 0 0 auto;
  padding: 2px 6px;
  font-family: var(--sk-font-mono);
  font-size: 11px;
  letter-spacing: .14em;
  color: var(--sk-mute);
  border: 1px solid var(--sk-line);
}

.page-contact .ct-quick .sk-copy {
  min-width: 0;
  font-family: var(--sk-font-mono);
  font-size: 14px;
  line-height: 1.5;
  text-align: left;
  color: var(--sk-white);
  word-break: break-all;
}

.page-contact .ct-quick__note {
  margin: 0;
  padding-top: 12px;
  border-top: 1px solid var(--sk-line-soft);
  font-size: 13px;
  line-height: 1.7;
  color: var(--sk-mute);
}

/* ---------- 首屏通栏图 ---------- */

.page-contact .ct-hero__media {
  position: relative;
  margin: 0;
  overflow: hidden;
  border-top: 1px solid var(--sk-line);
}

.page-contact .ct-hero__media img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  filter: saturate(.72) contrast(1.06);
}

.page-contact .ct-hero__media::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(to bottom, rgba(5, 7, 15, 0) 42%, rgba(5, 7, 15, .88) 100%),
    linear-gradient(to right, var(--sk-grid) 0 1px, transparent 1px 100%),
    linear-gradient(to bottom, var(--sk-grid) 0 1px, transparent 1px 100%);
  background-size: 100% 100%, 92px 92px, 92px 92px;
}

/* ---------- 渠道与控制台 ---------- */

.page-contact .ct-console {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(20px, 3vw, 40px);
  margin-top: clamp(22px, 3vw, 36px);
}

@media (min-width: 940px) {
  .page-contact .ct-console {
    grid-template-columns: 322px minmax(0, 1fr);
    align-items: start;
  }
}

.page-contact .ct-side {
  display: grid;
  gap: 0;
  background: var(--sk-deck);
  border: 1px solid var(--sk-line);
}

@media (min-width: 940px) {
  .page-contact .ct-side {
    position: sticky;
    top: calc(var(--sk-frame-h) + 26px);
  }
}

.page-contact .ct-side__block {
  padding: var(--ct-pad);
  border-bottom: 1px solid var(--sk-line-soft);
  min-width: 0;
}

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

.page-contact .ct-side__label {
  display: block;
  margin-bottom: 8px;
  font-family: var(--sk-font-mono);
  font-size: 11px;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--sk-cyan);
}

.page-contact .ct-side .sk-copy {
  display: block;
  width: 100%;
  min-width: 0;
  font-family: var(--sk-font-mono);
  font-size: 14px;
  line-height: 1.55;
  text-align: left;
  color: var(--sk-white);
  word-break: break-all;
}

.page-contact .ct-side__hint {
  margin: 10px 0 0;
  font-size: 13px;
  line-height: 1.75;
  color: var(--sk-mute);
}

.page-contact .ct-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(232px, 1fr));
  gap: clamp(14px, 2vw, 20px);
}

.page-contact .ct-card {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: var(--ct-pad);
  background: var(--sk-panel);
  border: 1px solid var(--sk-line);
  transition: transform var(--sk-t), border-color var(--sk-t), box-shadow var(--sk-t);
}

.page-contact .ct-card:hover,
.page-contact .ct-card:focus-within {
  transform: translateY(-2px);
  border-color: var(--sk-cyan);
  box-shadow: 0 0 0 1px var(--sk-cyan-soft);
}

.page-contact .ct-card__tag {
  align-self: flex-start;
  padding: 3px 8px;
  font-family: var(--sk-font-mono);
  font-size: 12px;
  letter-spacing: .04em;
  color: var(--sk-orange);
  border: 1px solid currentColor;
}

.page-contact .ct-card__tag--cyan {
  color: var(--sk-cyan);
}

.page-contact .ct-card__title {
  margin: 0;
  font-family: var(--sk-font-head);
  font-size: 21px;
  font-weight: 600;
  letter-spacing: .01em;
  color: var(--sk-white);
}

.page-contact .ct-card__desc {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--sk-mute);
}

.page-contact .ct-card__desc a {
  color: var(--sk-cyan);
  text-decoration: none;
  border-bottom: 1px solid var(--sk-cyan-soft);
}

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

.page-contact .ct-card__sub {
  margin: 4px 0 0;
  font-family: var(--sk-font-mono);
  font-size: 11px;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--sk-cyan);
}

.page-contact .ct-mats {
  list-style: none;
  margin: 0;
  margin-top: auto;
  padding: 12px 0 0;
  border-top: 1px solid var(--sk-line-soft);
  display: grid;
  gap: 8px;
}

.page-contact .ct-mats li {
  position: relative;
  padding-left: 16px;
  font-size: 13px;
  line-height: 1.65;
  color: var(--sk-white);
}

.page-contact .ct-mats li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .68em;
  width: 8px;
  height: 1px;
  background: var(--sk-cyan);
}

/* ---------- 邮件抬头 ---------- */

.page-contact .ct-subjects {
  display: grid;
  gap: 0;
  margin-top: clamp(18px, 2.4vw, 28px);
  border-top: 1px solid var(--sk-line);
}

.page-contact .ct-subject {
  display: grid;
  grid-template-columns: 1fr;
  gap: 8px 18px;
  padding: clamp(14px, 2vw, 20px) 0;
  border-bottom: 1px solid var(--sk-line-soft);
}

@media (min-width: 700px) {
  .page-contact .ct-subject {
    grid-template-columns: 176px minmax(0, 1fr);
    align-items: baseline;
  }
}

.page-contact .ct-subject__tag {
  justify-self: start;
  padding: 3px 10px;
  font-family: var(--sk-font-mono);
  font-size: 15px;
  letter-spacing: .04em;
  white-space: nowrap;
  border: 1px solid currentColor;
}

.page-contact .ct-subject__tag--orange {
  color: var(--sk-orange);
}

.page-contact .ct-subject__tag--cyan {
  color: var(--sk-cyan);
}

.page-contact .ct-subject__desc {
  margin: 0;
  max-width: 46em;
  font-size: 15px;
  line-height: 1.8;
  color: var(--sk-mute);
}

.page-contact .ct-tip {
  margin: clamp(16px, 2vw, 22px) 0 0;
  padding: 14px 18px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--sk-white);
  background: var(--sk-cyan-soft);
  border-left: 2px solid var(--sk-cyan);
}

.page-contact .ct-ribbon {
  position: relative;
  margin: clamp(22px, 3vw, 34px) 0 0;
  overflow: hidden;
  border: 1px solid var(--sk-line);
}

.page-contact .ct-ribbon img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  filter: saturate(.8);
}

.page-contact .ct-ribbon::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    linear-gradient(to right, rgba(5, 7, 15, .78), rgba(5, 7, 15, 0) 52%),
    repeating-linear-gradient(to right, var(--sk-grid) 0 1px, transparent 1px 96px);
}

/* ---------- 提交前准备 ---------- */

.page-contact .ct-prep {
  list-style: none;
  margin: clamp(20px, 3vw, 30px) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  border-top: 1px solid var(--sk-line);
}

@media (min-width: 860px) {
  .page-contact .ct-prep {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    column-gap: clamp(24px, 4vw, 56px);
  }
}

.page-contact .ct-prep li {
  display: grid;
  grid-template-columns: 44px minmax(0, 1fr);
  gap: 14px;
  padding: 16px 0;
  border-bottom: 1px solid var(--sk-line-soft);
}

.page-contact .ct-prep__no {
  padding-top: 4px;
  font-family: var(--sk-font-mono);
  font-size: 13px;
  color: var(--sk-purple);
}

.page-contact .ct-prep li h3 {
  margin: 0 0 5px;
}

.page-contact .ct-prep li p {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--sk-mute);
}

/* ---------- 属地与备案 ---------- */

.page-contact .ct-band {
  display: grid;
  grid-template-columns: 1fr;
  margin-top: clamp(18px, 2.4vw, 28px);
  background: var(--sk-deck);
  border: 1px solid var(--sk-line);
  border-left: 2px solid var(--sk-purple);
}

@media (min-width: 780px) {
  .page-contact .ct-band {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

.page-contact .ct-band__item {
  min-width: 0;
  padding: clamp(16px, 2.2vw, 24px);
  border-bottom: 1px solid var(--sk-line-soft);
}

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

@media (min-width: 780px) {
  .page-contact .ct-band__item {
    border-bottom: 0;
    border-right: 1px solid var(--sk-line-soft);
  }
  .page-contact .ct-band__item:last-child {
    border-right: 0;
  }
}

.page-contact .ct-band__label {
  display: block;
  margin-bottom: 8px;
  font-family: var(--sk-font-mono);
  font-size: 11px;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--sk-mute);
}

.page-contact .ct-band__value {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--sk-white);
  word-break: break-word;
}

.page-contact .ct-band__value--mono {
  display: inline-block;
  font-family: var(--sk-font-mono);
  font-size: 15px;
  letter-spacing: .02em;
  color: var(--sk-cyan);
  border-bottom: 1px dashed transparent;
  transition: color var(--sk-t), border-color var(--sk-t);
}

.page-contact .ct-band__value--mono:hover,
.page-contact .ct-band__value--mono:focus-visible {
  color: var(--sk-max);
  border-bottom-color: var(--sk-cyan);
}

.page-contact .ct-band__note {
  margin: 14px 0 0;
  font-size: 13px;
  line-height: 1.85;
  color: var(--sk-mute);
}

/* ---------- 自查与问答 ---------- */

.page-contact .ct-self__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(22px, 3vw, 44px);
}

@media (min-width: 880px) {
  .page-contact .ct-self__grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.06fr);
    align-items: start;
  }
}

.page-contact .ct-self__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 22px;
}

.page-contact .ct-self {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--sk-line);
}

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

.page-contact .ct-self a {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 14px;
  padding: 14px 4px 14px 12px;
  font-size: 15px;
  line-height: 1.6;
  color: var(--sk-white);
  text-decoration: none;
  border-left: 2px solid transparent;
  transition: color var(--sk-t), border-color var(--sk-t), background-color var(--sk-t);
}

.page-contact .ct-self a::after {
  content: "\2192";
  flex: 0 0 auto;
  font-family: var(--sk-font-mono);
  font-size: 14px;
  color: var(--sk-mute);
  transition: color var(--sk-t), transform var(--sk-t);
}

.page-contact .ct-self a:hover,
.page-contact .ct-self a:focus-visible {
  color: var(--sk-cyan);
  border-left-color: var(--sk-purple);
  background: rgba(110, 75, 255, .08);
}

.page-contact .ct-self a:hover::after,
.page-contact .ct-self a:focus-visible::after {
  color: var(--sk-cyan);
  transform: translateX(3px);
}

/* ---------- 窄屏收缩与动效约束 ---------- */

@media (max-width: 380px) {
  .page-contact .ct-prep li {
    grid-template-columns: 34px minmax(0, 1fr);
    gap: 10px;
  }
  .page-contact .ct-quick .sk-copy {
    font-size: 13px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact *,
  .page-contact *::before,
  .page-contact *::after {
    transition-duration: .01ms !important;
    animation-duration: .01ms !important;
  }
  .page-contact .ct-card:hover {
    transform: none;
  }
  .page-contact .ct-self a:hover::after,
  .page-contact .ct-self a:focus-visible::after {
    transform: none;
  }
}