.page-contact {
  padding-bottom: clamp(56px, 8vw, 112px);
}

.page-contact .breadcrumbs {
  padding-top: 18px;
}

/* ---------- 首屏 ---------- */
.page-contact .ct-hero {
  padding: clamp(24px, 3.5vw, 46px) 0 clamp(30px, 4.5vw, 60px);
}

.page-contact .ct-hero__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(24px, 3vw, 46px);
}

.page-contact .ct-hero h1 {
  margin: 12px 0 16px;
  font-family: var(--sans);
  font-weight: 900;
  font-size: clamp(2rem, 5vw, 3.9rem);
  line-height: 1.08;
  letter-spacing: -0.01em;
  color: var(--white-soft);
}

.page-contact .ct-hero .lede {
  max-width: 46ch;
  color: var(--text);
  font-size: clamp(15px, 1.15vw, 17px);
  line-height: 1.75;
}

.page-contact .ct-channels {
  list-style: none;
  margin: clamp(26px, 3.6vw, 42px) 0 0;
  padding: 0;
  border-top: 2px solid var(--line);
}

.page-contact .ct-channels__item {
  display: grid;
  gap: 6px;
  padding: 18px 0 18px 18px;
  border-bottom: 1px solid var(--line);
  border-left: 3px solid transparent;
  transition: border-left-color 0.24s var(--ease), background-color 0.24s var(--ease);
}

.page-contact .ct-channels__item:hover,
.page-contact .ct-channels__item:focus-within {
  border-left-color: var(--gold);
  background: var(--panel-deep);
}

.page-contact .ct-channels__label {
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.14em;
  color: var(--gold);
}

.page-contact .ct-channels__value {
  font-family: var(--mono);
  font-weight: 700;
  font-size: clamp(1.05rem, 2.1vw, 1.6rem);
  letter-spacing: 0.01em;
  line-height: 1.35;
  color: var(--white-soft);
  overflow-wrap: anywhere;
}

.page-contact .ct-channels__note {
  font-size: 14px;
  line-height: 1.7;
  color: var(--muted);
  max-width: 52ch;
}

.page-contact .ct-hero__media {
  border: 2px solid var(--line);
  background: var(--panel-deep);
  box-shadow: var(--shadow-hard);
  margin: 0;
}

.page-contact .ct-hero__media .media-frame__cap {
  color: var(--muted);
}

/* ---------- 数据条 ---------- */
.page-contact .ct-strip {
  margin-top: clamp(6px, 1.6vw, 16px);
}

/* ---------- 通用章节 ---------- */
.page-contact .ct-sec {
  padding: clamp(46px, 6vw, 88px) 0;
}

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

.page-contact .ct-sec__text {
  color: var(--text);
  font-size: 15px;
  line-height: 1.78;
  max-width: 40ch;
}

.page-contact .ct-sec__head {
  max-width: 68ch;
  margin-bottom: clamp(26px, 3.4vw, 44px);
}

.page-contact .ct-sec__head .lede {
  color: var(--text);
  line-height: 1.78;
}

/* ---------- 01 咨询准备 ---------- */
.page-contact .ct-checklist {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-contact .ct-checklist__item {
  display: grid;
  grid-template-columns: 18px minmax(0, 1fr);
  gap: 4px 16px;
  padding: 18px 20px;
  background: var(--panel);
  border-left: 3px solid transparent;
  transition: border-left-color 0.24s var(--ease), background-color 0.24s var(--ease);
}

.page-contact .ct-checklist__item:hover {
  border-left-color: var(--neon);
  background: var(--panel-deep);
}

.page-contact .ct-checklist__mark {
  grid-row: 1 / span 2;
  align-self: start;
  width: 14px;
  height: 14px;
  margin-top: 5px;
  border: 2px solid var(--gold);
  position: relative;
}

.page-contact .ct-checklist__mark::after {
  content: "";
  position: absolute;
  left: 1px;
  top: 1px;
  width: 8px;
  height: 4px;
  border-left: 2px solid var(--neon);
  border-bottom: 2px solid var(--neon);
  transform: rotate(-45deg);
}

.page-contact .ct-checklist__title {
  margin: 0;
  font-size: 16px;
  font-weight: 700;
  color: var(--white-soft);
  line-height: 1.5;
}

.page-contact .ct-checklist__desc {
  margin: 2px 0 0;
  font-size: 14px;
  line-height: 1.72;
  color: var(--muted);
}

/* ---------- 02 纠错与协作 ---------- */
.page-contact .ct-sec--band {
  background: linear-gradient(180deg, var(--green-deep) 0%, var(--ink) 100%);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.page-contact .ct-steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--line);
  border: 2px solid var(--line);
  box-shadow: var(--shadow-hard);
}

.page-contact .ct-steps__item {
  background: var(--panel);
  padding: 24px 22px 28px;
}

.page-contact .ct-steps__num {
  display: block;
  font-family: var(--mono);
  font-size: clamp(1.6rem, 3vw, 2.1rem);
  font-weight: 700;
  line-height: 1;
  color: var(--gold);
  margin-bottom: 14px;
}

.page-contact .ct-steps__title {
  margin: 0 0 8px;
  font-size: 17px;
  font-weight: 800;
  color: var(--white-soft);
}

.page-contact .ct-steps__desc {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--text);
}

.page-contact .ct-partner {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(20px, 3vw, 34px);
  align-items: center;
  margin-top: clamp(28px, 4vw, 48px);
  padding: clamp(20px, 3vw, 32px);
  background: var(--panel-deep);
  border: 2px solid var(--line);
  border-left: 6px solid var(--gold);
}

.page-contact .ct-partner__media {
  margin: 0;
  border: 1px solid var(--line);
}

.page-contact .ct-partner__title {
  margin: 0 0 10px;
  font-size: clamp(1.1rem, 1.8vw, 1.35rem);
  font-weight: 800;
  color: var(--gold-hi);
}

.page-contact .ct-partner__text {
  margin: 0;
  font-size: 15px;
  line-height: 1.78;
  color: var(--text);
}

.page-contact .ct-partner__meta {
  margin: 12px 0 0;
  font-family: var(--mono);
  font-size: 13px;
  letter-spacing: 0.02em;
  color: var(--blue);
}

/* ---------- 03 答复时效 ---------- */
.page-contact .ct-sla {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(24px, 3vw, 48px);
  align-items: start;
}

.page-contact .ct-sla__clock {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 24px 22px;
  background: var(--panel);
  border: 2px solid var(--line);
  border-top: 4px solid var(--neon);
}

.page-contact .ct-sla__hours {
  font-family: var(--mono);
  font-size: clamp(2rem, 5.5vw, 3.2rem);
  font-weight: 700;
  line-height: 1.05;
  letter-spacing: 0.01em;
  color: var(--gold-hi);
}

.page-contact .ct-sla__days {
  font-family: var(--mono);
  font-size: 13px;
  letter-spacing: 0.12em;
  color: var(--muted);
}

.page-contact .ct-sla__list {
  list-style: none;
  margin: 24px 0 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-contact .ct-sla__item {
  display: grid;
  grid-template-columns: 1fr;
  gap: 8px;
  padding: 16px 18px;
  background: var(--ink);
}

.page-contact .ct-sla__badge {
  justify-self: start;
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.08em;
  padding: 5px 10px;
  border: 1px solid var(--line);
  color: var(--text);
  white-space: nowrap;
}

.page-contact .ct-sla__badge--neon {
  border-color: var(--neon);
  color: var(--neon);
}

.page-contact .ct-sla__badge--blue {
  border-color: var(--blue);
  color: var(--blue);
}

.page-contact .ct-sla__badge--amber {
  border-color: var(--amber);
  color: var(--amber);
}

.page-contact .ct-sla__desc {
  font-size: 14px;
  line-height: 1.75;
  color: var(--text);
}

/* ---------- 04 站点信息 ---------- */
.page-contact .ct-info {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(22px, 3vw, 40px);
}

.page-contact .ct-info__head .ct-sec__text {
  max-width: 58ch;
}

.page-contact .ct-info__list {
  margin: 0;
  padding: 0;
  border-top: 2px solid var(--line);
}

.page-contact .ct-info__row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 4px;
  padding: 14px 0;
  border-bottom: 1px solid var(--line);
}

.page-contact .ct-info__key {
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.12em;
  color: var(--gold);
}

.page-contact .ct-info__val {
  margin: 0;
  font-size: 15px;
  line-height: 1.7;
  color: var(--white-soft);
}

.page-contact .ct-info__links {
  grid-column: 1 / -1;
  margin: 0;
  font-size: 14px;
  line-height: 1.9;
  color: var(--muted);
}

.page-contact .ct-info__links a {
  color: var(--blue);
  text-decoration: none;
  border-bottom: 1px solid var(--line);
  transition: border-bottom-color 0.2s var(--ease), color 0.2s var(--ease);
}

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

.page-contact a:focus-visible,
.page-contact .ct-channels__item:focus-within {
  outline: 2px solid var(--neon);
  outline-offset: 3px;
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-contact .ct-sla__item {
    grid-template-columns: 168px minmax(0, 1fr);
    align-items: baseline;
    gap: 4px 20px;
  }

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

  .page-contact .ct-info__row {
    grid-template-columns: 190px minmax(0, 1fr);
    align-items: baseline;
    gap: 4px 20px;
  }

  .page-contact .ct-partner {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
  }
}

@media (min-width: 900px) {
  .page-contact .ct-hero__grid {
    grid-template-columns: minmax(0, 1.32fr) minmax(0, 1fr);
    align-items: start;
  }

  .page-contact .ct-hero__media {
    position: sticky;
    top: calc(var(--header-h) + 24px);
  }
}

@media (min-width: 1000px) {
  .page-contact .ct-sec__grid {
    grid-template-columns: minmax(0, 4fr) minmax(0, 8fr);
    align-items: start;
  }

  .page-contact .ct-sec__aside {
    position: sticky;
    top: calc(var(--header-h) + 32px);
  }

  .page-contact .ct-sla {
    grid-template-columns: minmax(0, 4fr) minmax(0, 8fr);
  }

  .page-contact .ct-sla__clock {
    position: sticky;
    top: calc(var(--header-h) + 32px);
  }

  .page-contact .ct-info {
    grid-template-columns: minmax(0, 4fr) minmax(0, 8fr);
    align-items: start;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .ct-channels__item,
  .page-contact .ct-checklist__item,
  .page-contact .ct-info__links a {
    transition: none;
  }
}