.page-contact {
  display: block;
}

/* ---------- 首屏 ---------- */
.page-contact .ct-hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  padding-block: clamp(26px, 4.4vw, 52px) clamp(30px, 4.6vw, 60px);
  background:
    radial-gradient(110% 82% at 84% -12%, rgba(46, 31, 99, .82) 0%, rgba(27, 20, 64, 0) 62%),
    radial-gradient(90% 70% at 6% 112%, rgba(53, 224, 161, .13) 0%, rgba(7, 19, 15, 0) 60%),
    linear-gradient(180deg, #0A1B14 0%, var(--ink) 100%);
}

.page-contact .ct-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(200, 255, 61, .06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(200, 255, 61, .06) 1px, transparent 1px);
  background-size: 76px 76px;
  -webkit-mask-image: linear-gradient(180deg, rgba(0, 0, 0, .85), transparent 82%);
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, .85), transparent 82%);
}

.page-contact .ct-hero h1 {
  margin: 14px 0 0;
  max-width: 20ch;
  font-size: clamp(2rem, 7.2vw, 4.2rem);
  line-height: 1.04;
  letter-spacing: -.022em;
  color: var(--paper);
}

.page-contact .ct-hero__lead {
  max-width: 64ch;
  margin-top: clamp(16px, 2.2vw, 24px);
}

.page-contact .ct-jump {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: clamp(20px, 2.6vw, 30px);
  padding-bottom: 3px;
  font-family: var(--mono);
  font-size: .72rem;
  letter-spacing: .16em;
  text-transform: uppercase;
  text-decoration: none;
  color: var(--cyan);
  border-bottom: 1px solid rgba(53, 224, 161, .42);
  transition: color .18s var(--ease), border-color .18s var(--ease);
}

.page-contact .ct-jump::after {
  content: "↓";
  font-size: .95rem;
  line-height: 1;
}

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

/* ---------- 超大联系方式 ---------- */
.page-contact .ct-reach {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(14px, 2vw, 22px);
  margin-top: clamp(28px, 4vw, 46px);
}

.page-contact .ct-reach__block {
  position: relative;
  padding: clamp(18px, 2.4vw, 28px) clamp(18px, 2.6vw, 32px);
  background: linear-gradient(135deg, var(--board) 0%, #0A1F17 100%);
  border-left: 3px solid var(--fluoro);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 18px), calc(100% - 18px) 100%, 0 100%);
}

.page-contact .ct-reach__label {
  display: block;
  font-family: var(--mono);
  font-size: .68rem;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--mist);
}

.page-contact .ct-reach__value {
  display: block;
  margin-top: 10px;
  font-weight: 700;
  font-size: clamp(1.08rem, 5vw, 2.7rem);
  line-height: 1.1;
  letter-spacing: -.02em;
  color: var(--fluoro);
  font-variant-numeric: tabular-nums;
  overflow-wrap: anywhere;
}

.page-contact .ct-reach__hint {
  display: block;
  margin-top: 10px;
  font-size: .82rem;
  line-height: 1.6;
  color: var(--mist);
}

/* ---------- 横幅图 ---------- */
.page-contact .ct-banner {
  padding-block: 0 clamp(34px, 5vw, 64px);
}

.page-contact .ct-banner__frame {
  margin: 0;
  aspect-ratio: 21 / 9;
  overflow: hidden;
  border: 1px solid var(--line);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 28px), calc(100% - 28px) 100%, 0 100%);
}

.page-contact .ct-banner__frame img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(.8) contrast(1.08) brightness(.86);
}

/* ---------- 区块标题 ---------- */
.page-contact .ct-sec-head {
  max-width: 62ch;
  margin-bottom: clamp(24px, 3.4vw, 40px);
}

.page-contact .ct-sec-head h2 {
  margin: 12px 0 0;
  font-size: clamp(1.55rem, 4.2vw, 2.5rem);
  line-height: 1.12;
  letter-spacing: -.016em;
  color: var(--paper);
}

.page-contact .ct-sec-head__sub {
  margin-top: 12px;
}

/* ---------- 合作方向 ---------- */
.page-contact .ct-dirs {
  background: linear-gradient(180deg, var(--grass) 0%, var(--ink) 88%);
}

.page-contact .ct-dirs__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(14px, 2vw, 20px);
}

.page-contact .ct-dir {
  position: relative;
  padding: clamp(20px, 2.6vw, 32px);
  background: linear-gradient(150deg, rgba(16, 46, 34, .92) 0%, rgba(12, 32, 24, .55) 100%);
  border-top: 1px solid var(--line);
  transition: transform .18s var(--ease), box-shadow .18s var(--ease),
              background .18s var(--ease), border-color .18s var(--ease);
}

.page-contact .ct-dir:hover,
.page-contact .ct-dir:focus-within {
  transform: translateY(-4px);
  box-shadow: var(--shadow);
  border-top-color: var(--fluoro);
  background: linear-gradient(150deg, rgba(23, 62, 45, .96) 0%, rgba(12, 32, 24, .72) 100%);
}

.page-contact .ct-dir__no {
  display: block;
  font-size: clamp(1.6rem, 3.6vw, 2.3rem);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -.03em;
  color: rgba(200, 255, 61, .34);
  font-variant-numeric: tabular-nums;
}

.page-contact .ct-dir h3 {
  margin: 14px 0 0;
  font-size: clamp(1.1rem, 2.1vw, 1.4rem);
  line-height: 1.24;
  letter-spacing: -.012em;
  color: var(--paper);
}

.page-contact .ct-dir p {
  margin: 12px 0 0;
  font-size: .95rem;
  line-height: 1.75;
  color: var(--mist);
}

.page-contact .ct-dir p a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(53, 224, 161, .4);
}

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

.page-contact .ct-dir__fit {
  padding-top: 12px;
  border-top: 1px dashed var(--line-2);
  font-family: var(--mono);
  font-size: .74rem;
  letter-spacing: .04em;
  color: var(--cyan) !important;
}

.page-contact .ct-dirs__frame {
  position: relative;
  margin: 0;
  aspect-ratio: 3 / 2;
  overflow: hidden;
  border: 1px solid var(--line);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 24px), calc(100% - 24px) 100%, 0 100%);
}

.page-contact .ct-dirs__frame img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(.84) contrast(1.06);
}

.page-contact .ct-dirs__frame::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(180deg, rgba(7, 19, 15, 0) 44%, rgba(7, 19, 15, .88) 100%);
}

.page-contact .ct-dirs__cap {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 1;
  padding: clamp(14px, 2vw, 22px);
  font-size: .82rem;
  line-height: 1.6;
  color: var(--paper);
}

/* ---------- 联系渠道 ---------- */
.page-contact .ct-channels {
  background:
    radial-gradient(80% 60% at 100% 0%, rgba(27, 20, 64, .5) 0%, rgba(7, 19, 15, 0) 62%),
    var(--ink);
}

.page-contact .ct-channels__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(24px, 4vw, 56px);
}

.page-contact .ct-channels__aside h2 {
  margin: 12px 0 0;
  font-size: clamp(1.55rem, 4.2vw, 2.5rem);
  line-height: 1.12;
  letter-spacing: -.016em;
  color: var(--paper);
}

.page-contact .ct-channels__aside p {
  margin-top: 14px;
  font-size: .95rem;
  line-height: 1.75;
}

.page-contact .ct-chan {
  padding: clamp(18px, 2.4vw, 26px) 0;
  border-bottom: 1px solid var(--line-2);
}

.page-contact .ct-chan:first-child {
  border-top: 1px solid var(--line-2);
}

.page-contact .ct-chan h3 {
  display: flex;
  align-items: baseline;
  gap: 10px;
  margin: 0;
  font-size: clamp(1.05rem, 2vw, 1.3rem);
  line-height: 1.26;
  letter-spacing: -.01em;
  color: var(--paper);
}

.page-contact .ct-chan__dot {
  flex: 0 0 auto;
  width: 8px;
  height: 8px;
  transform: translateY(-2px) rotate(45deg);
  background: var(--fluoro);
}

.page-contact .ct-chan p {
  margin: 10px 0 0;
  font-size: .95rem;
  line-height: 1.78;
  color: var(--mist);
}

/* ---------- 对接流程 ---------- */
.page-contact .ct-flow {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  margin: 0;
  padding: 0;
  list-style: none;
  background: var(--line-2);
  border: 1px solid var(--line-2);
}

.page-contact .ct-step {
  padding: clamp(18px, 2.4vw, 26px);
  background: linear-gradient(180deg, rgba(16, 46, 34, .78) 0%, rgba(7, 19, 15, .94) 100%);
  transition: background .18s var(--ease);
}

.page-contact .ct-step:hover {
  background: linear-gradient(180deg, rgba(23, 62, 45, .9) 0%, rgba(7, 19, 15, .96) 100%);
}

.page-contact .ct-step__no {
  display: block;
  font-size: .68rem;
  letter-spacing: .18em;
  color: var(--fluoro);
}

.page-contact .ct-step h3 {
  margin: 14px 0 0;
  font-size: clamp(1.02rem, 1.9vw, 1.22rem);
  line-height: 1.26;
  letter-spacing: -.01em;
  color: var(--paper);
}

.page-contact .ct-step p {
  margin: 10px 0 0;
  font-size: .9rem;
  line-height: 1.72;
  color: var(--mist);
}

/* ---------- 资料清单 ---------- */
.page-contact .ct-prep {
  background: linear-gradient(180deg, var(--ink) 0%, #06110D 100%);
}

.page-contact .ct-prep__panel {
  padding: clamp(44px, 6vw, 74px) clamp(20px, 3.6vw, 56px) clamp(30px, 4.4vw, 56px);
  background:
    linear-gradient(120deg, rgba(46, 31, 99, .55) 0%, rgba(27, 20, 64, .18) 46%, rgba(7, 19, 15, 0) 100%),
    linear-gradient(180deg, var(--grass) 0%, #0A1C14 100%);
  border: 1px solid var(--line);
  clip-path: polygon(0 26px, 100% 0, 100% calc(100% - 26px), 0 100%);
}

.page-contact .ct-prep__list {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(14px, 2vw, 22px);
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-contact .ct-prep__item {
  padding-left: clamp(14px, 1.8vw, 20px);
  border-left: 2px solid var(--cyan);
}

.page-contact .ct-prep__k {
  display: block;
  font-size: .78rem;
  font-weight: 700;
  letter-spacing: .06em;
  color: var(--paper);
}

.page-contact .ct-prep__item p {
  margin: 8px 0 0;
  font-size: .9rem;
  line-height: 1.72;
  color: var(--mist);
}

.page-contact .ct-prep__foot {
  margin-top: clamp(26px, 3.4vw, 40px);
  padding-top: clamp(18px, 2.4vw, 26px);
  border-top: 1px dashed var(--line-2);
  font-size: .9rem;
  line-height: 1.8;
  color: var(--mist);
}

.page-contact .ct-prep__foot a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(53, 224, 161, .4);
}

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

/* ---------- 地址与备案 ---------- */
.page-contact .ct-stamp {
  padding-block: clamp(22px, 3vw, 36px) clamp(44px, 6vw, 76px);
}

.page-contact .ct-stamp__row {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: clamp(10px, 1.6vw, 22px);
  padding: clamp(12px, 1.6vw, 16px) 0;
  border-top: 1px solid var(--line-2);
}

.page-contact .ct-stamp__row:last-child {
  border-bottom: 1px solid var(--line-2);
}

.page-contact .ct-stamp__key {
  flex: 0 0 auto;
  min-width: 74px;
  font-family: var(--mono);
  font-size: .68rem;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--fluoro);
}

.page-contact .ct-stamp__val {
  font-size: clamp(.9rem, 1.6vw, 1.04rem);
  line-height: 1.6;
  color: var(--paper);
}

/* ---------- 响应式 ---------- */
@media (min-width: 760px) {
  .page-contact .ct-reach {
    grid-template-columns: minmax(0, 1.32fr) minmax(0, 1fr);
  }

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

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

  .page-contact .ct-prep__item--wide {
    grid-column: 1 / -1;
  }
}

@media (min-width: 900px) {
  .page-contact .ct-dirs__grid {
    grid-template-columns: repeat(12, minmax(0, 1fr));
    align-items: start;
  }

  .page-contact .ct-dir--a {
    grid-column: 1 / span 7;
  }

  .page-contact .ct-dir--b {
    grid-column: 8 / span 5;
  }

  .page-contact .ct-dir--c {
    grid-column: 1 / span 5;
  }

  .page-contact .ct-dirs__frame {
    grid-column: 6 / span 7;
    align-self: stretch;
  }

  .page-contact .ct-channels__grid {
    grid-template-columns: minmax(0, .82fr) minmax(0, 1.18fr);
    align-items: start;
  }

  .page-contact .ct-channels__aside {
    position: sticky;
    top: 96px;
  }

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

@media (min-width: 1100px) {
  .page-contact .ct-banner__frame {
    aspect-ratio: 21 / 8;
  }
}

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

  .page-contact .ct-dir:hover,
  .page-contact .ct-dir:focus-within {
    transform: none;
  }
}