.page-contact {
  --ct-hair: rgba(223, 232, 241, 0.2);
  --ct-flag: linear-gradient(
    90deg,
    var(--mb-cyan) 0 20%,
    var(--mb-snow) 20% 40%,
    var(--mb-red) 40% 60%,
    var(--mb-green) 60% 80%,
    var(--mb-yellow) 80% 100%
  );
}

.page-contact .ct-crumbs {
  padding-top: 1rem;
  padding-bottom: 0.75rem;
}

.page-contact .ct-head {
  max-width: 62ch;
}

/* ---------- 首屏 ---------- */

.page-contact .ct-hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  background: var(--mb-deep);
  border-top: 2px solid var(--mb-ink);
  border-bottom: 2px solid var(--mb-ink);
}

.page-contact .ct-hero__media {
  position: absolute;
  inset: 0;
  z-index: -2;
}

.page-contact .ct-hero__media img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.34;
}

.page-contact .ct-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background-image:
    linear-gradient(
      180deg,
      rgba(10, 27, 46, 0.72) 0%,
      rgba(10, 27, 46, 0.92) 58%,
      var(--mb-deep) 100%
    ),
    repeating-linear-gradient(
      118deg,
      rgba(34, 224, 190, 0.09) 0 2px,
      transparent 2px 28px
    );
}

.page-contact .ct-hero__inner {
  padding-top: 3rem;
  padding-bottom: 3.25rem;
}

.page-contact .ct-hero__title {
  max-width: 20ch;
  margin: 0.6rem 0 1rem;
}

.page-contact .ct-hero__lede {
  max-width: 60ch;
  margin: 0;
  color: var(--mb-glacier);
}

.page-contact .ct-quick {
  display: grid;
  gap: 0.9rem;
  margin-top: 1.9rem;
}

.page-contact .ct-quick__item {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  min-width: 0;
  padding: 0.85rem 1.05rem 1rem;
  background: rgba(18, 41, 63, 0.86);
  border: 2px solid var(--mb-ink);
  box-shadow: var(--mb-shadow);
  color: var(--mb-snow);
  text-decoration: none;
  transition: transform 0.18s ease, box-shadow 0.18s ease, border-color 0.18s ease;
}

.page-contact .ct-quick__item:hover,
.page-contact .ct-quick__item:focus-visible {
  transform: translate(3px, 3px);
  box-shadow: 1px 1px 0 var(--mb-ink);
  border-color: var(--mb-cyan);
}

.page-contact .ct-quick__label {
  font-size: 0.8125rem;
  letter-spacing: 0.14em;
  color: var(--mb-kaolin);
}

.page-contact .ct-quick__value {
  font-family: var(--mb-font-mono);
  font-size: clamp(1rem, 4.2vw, 1.35rem);
  font-weight: 700;
  letter-spacing: 0.01em;
  word-break: break-all;
}

/* ---------- 渠道卡片 ---------- */

.page-contact .ct-channels {
  background: var(--mb-deep);
}

.page-contact .ct-channels__grid {
  display: grid;
  gap: 1.2rem;
  margin-top: 1.75rem;
}

.page-contact .ct-channel {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 0.7rem;
  min-width: 0;
  padding: 1.85rem 1.3rem 1.45rem;
  background: var(--mb-snow);
  color: var(--mb-cobalt);
  border: 2px solid var(--mb-ink);
  box-shadow: var(--mb-shadow);
  scroll-margin-top: 6rem;
  transition: transform 0.18s ease, box-shadow 0.18s ease;
}

.page-contact .ct-channel::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 6px;
  background: var(--ct-accent, var(--mb-cyan));
}

.page-contact .ct-channel:hover {
  transform: translate(-3px, -3px);
  box-shadow: var(--mb-shadow-lg);
}

.page-contact .ct-channel--mail {
  --ct-accent: var(--mb-cyan);
}

.page-contact .ct-channel--tel {
  --ct-accent: var(--mb-violet);
}

.page-contact .ct-channel--post {
  --ct-accent: var(--mb-yellow);
}

.page-contact .ct-channel__kicker {
  margin: 0;
  font-family: var(--mb-font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.14em;
  color: var(--mb-teal);
}

.page-contact .ct-channel__title {
  margin: 0;
}

.page-contact .ct-channel__value {
  margin: 0;
  padding: 0.6rem 0;
  font-family: var(--mb-font-mono);
  font-size: 1.05rem;
  font-weight: 700;
  line-height: 1.5;
  color: var(--mb-cobalt);
  word-break: break-word;
  border-top: 2px solid var(--mb-glacier);
  border-bottom: 2px solid var(--mb-glacier);
}

.page-contact .ct-channel__body {
  margin: 0;
  font-size: 1rem;
  line-height: 1.72;
  color: var(--mb-cobalt);
}

.page-contact .ct-channel__note {
  margin: 0;
  font-size: 0.875rem;
  line-height: 1.6;
  color: var(--mb-teal);
}

/* ---------- 响应节奏 ---------- */

.page-contact .ct-rhythm {
  position: relative;
  background: var(--mb-cobalt);
  border-top: 2px solid var(--mb-ink);
  border-bottom: 2px solid var(--mb-ink);
}

.page-contact .ct-rhythm::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 26px;
  background: var(--mb-deep);
  clip-path: polygon(0 0, 100% 0, 0 100%);
  pointer-events: none;
}

.page-contact .ct-rhythm__top {
  display: grid;
  gap: 1.5rem;
  align-items: center;
}

.page-contact .ct-rhythm__figure {
  margin: 0;
  border: 2px solid var(--mb-ink);
  box-shadow: var(--mb-shadow);
}

.page-contact .ct-tl {
  list-style: none;
  margin: 2rem 0 0;
  padding: 0;
  display: grid;
  gap: 1.1rem;
}

.page-contact .ct-tl__item {
  position: relative;
  padding: 0.15rem 0 0.15rem 1.6rem;
  border-left: 2px solid rgba(34, 224, 190, 0.45);
}

.page-contact .ct-tl__item::before {
  content: "";
  position: absolute;
  left: -7px;
  top: 0.3rem;
  width: 12px;
  height: 12px;
  background: var(--mb-cyan);
  border: 2px solid var(--mb-ink);
  border-radius: 50%;
}

.page-contact .ct-tl__time {
  margin: 0 0 0.3rem;
  font-family: var(--mb-font-mono);
  font-size: 1rem;
  font-weight: 700;
  color: var(--mb-cyan);
}

.page-contact .ct-tl__text {
  margin: 0;
  font-size: 0.95rem;
  line-height: 1.7;
  color: var(--mb-glacier);
}

/* ---------- 自助查证 ---------- */

.page-contact .ct-self {
  color: var(--mb-cobalt);
}

.page-contact .ct-self__grid {
  display: grid;
  gap: 1.75rem;
}

.page-contact .ct-self__list {
  list-style: none;
  margin: 1.5rem 0 0;
  padding: 0;
  display: grid;
  gap: 1.1rem;
}

.page-contact .ct-self__item {
  padding: 1.1rem 1.15rem 1.2rem;
  background: #ffffff;
  border: 2px solid var(--mb-ink);
  box-shadow: var(--mb-shadow);
}

.page-contact .ct-self__item h3 {
  margin: 0 0 0.45rem;
}

.page-contact .ct-self__item p {
  margin: 0 0 0.7rem;
  font-size: 0.98rem;
  line-height: 1.72;
}

.page-contact .ct-self__link {
  font-size: 0.9375rem;
  font-weight: 700;
  color: var(--mb-teal);
  text-decoration: none;
  border-bottom: 2px solid var(--mb-teal);
}

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

.page-contact .ct-self__aside {
  align-self: start;
  padding: 1.6rem 1.3rem 1.5rem;
  background: var(--mb-deep);
  color: var(--mb-snow);
  border: 2px solid var(--mb-ink);
  box-shadow: var(--mb-shadow-lg);
}

.page-contact .ct-self__aside-kicker {
  margin: 0 0 0.6rem;
  font-family: var(--mb-font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.16em;
  color: var(--mb-cyan);
}

.page-contact .ct-self__aside-text {
  margin: 0 0 1.15rem;
  font-size: 1rem;
  line-height: 1.72;
  color: var(--mb-glacier);
}

.page-contact .ct-self__aside-btn {
  display: inline-block;
}

/* ---------- 反馈步骤 ---------- */

.page-contact .ct-steps {
  background: var(--mb-deep);
}

.page-contact .ct-steps__list {
  list-style: none;
  margin: 2.4rem 0 0;
  padding: 0;
  display: grid;
  gap: 1.6rem;
}

.page-contact .ct-step {
  position: relative;
  min-width: 0;
  padding: 2.5rem 1.15rem 1.35rem;
  background: rgba(18, 41, 63, 0.78);
  border: 2px solid var(--mb-ink);
  box-shadow: var(--mb-shadow);
}

.page-contact .ct-step__num {
  position: absolute;
  top: -1.05rem;
  left: 1.1rem;
  display: grid;
  place-items: center;
  width: 2.2rem;
  height: 2.2rem;
  font-family: var(--mb-font-mono);
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--mb-deep);
  border: 2px solid var(--mb-ink);
}

.page-contact .ct-step:nth-child(1) .ct-step__num {
  background: var(--mb-cyan);
}

.page-contact .ct-step:nth-child(2) .ct-step__num {
  background: var(--mb-yellow);
}

.page-contact .ct-step:nth-child(3) .ct-step__num {
  background: var(--mb-red);
  color: var(--mb-snow);
}

.page-contact .ct-step:nth-child(4) .ct-step__num {
  background: var(--mb-green);
}

.page-contact .ct-step__title {
  margin: 0 0 0.5rem;
}

.page-contact .ct-step p {
  margin: 0;
  font-size: 0.95rem;
  line-height: 1.72;
  color: var(--mb-glacier);
}

/* ---------- 收尾 ---------- */

.page-contact .ct-close {
  background: var(--mb-cobalt);
}

.page-contact .ct-close__box {
  position: relative;
  overflow: hidden;
  padding: 2.5rem 1.3rem 2rem;
  background: var(--mb-deep);
  border: 2px solid var(--mb-ink);
  box-shadow: var(--mb-shadow-lg);
}

.page-contact .ct-close__box::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 6px;
  background: var(--ct-flag);
}

.page-contact .ct-close__box h2 {
  margin-top: 0;
}

.page-contact .ct-close__box p {
  max-width: 62ch;
}

.page-contact .ct-close__links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem;
  margin-top: 1.5rem;
}

/* ---------- 响应式 ---------- */

@media (min-width: 700px) {
  .page-contact .ct-hero__inner {
    padding-top: 4.5rem;
    padding-bottom: 5rem;
  }

  .page-contact .ct-quick {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1.1rem;
  }

  .page-contact .ct-tl {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1.4rem 1.75rem;
  }

  .page-contact .ct-steps__list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1.8rem 1.2rem;
  }
}

@media (min-width: 960px) {
  .page-contact .ct-channels__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    align-items: start;
  }

  .page-contact .ct-channel:nth-child(2) {
    margin-top: 1.6rem;
  }

  .page-contact .ct-channel:nth-child(3) {
    margin-top: 0.7rem;
  }

  .page-contact .ct-rhythm__top {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr);
    gap: 2.5rem;
  }

  .page-contact .ct-tl {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 1.75rem;
    margin-top: 2.75rem;
    padding-top: 1.6rem;
    border-top: 2px solid var(--ct-hair);
  }

  .page-contact .ct-tl__item {
    padding: 0;
    border-left: 0;
  }

  .page-contact .ct-tl__item::before {
    left: 0;
    top: -1.6rem;
    transform: translateY(-50%);
  }

  .page-contact .ct-self__grid {
    grid-template-columns: minmax(0, 1.6fr) minmax(0, 1fr);
    gap: 2.25rem;
  }

  .page-contact .ct-self__aside {
    position: sticky;
    top: 6rem;
  }

  .page-contact .ct-steps__list {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 1.25rem;
  }

  .page-contact .ct-close__box {
    padding: 3rem 2.25rem 2.5rem;
  }
}

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

  .page-contact .ct-quick__item:hover,
  .page-contact .ct-quick__item:focus-visible,
  .page-contact .ct-channel:hover {
    transform: none;
  }
}