.page-contact {
  --ct-ink-soft: rgba(16, 19, 28, 0.68);
  --ct-line-paper: rgba(16, 19, 28, 0.16);
  --ct-glass: rgba(14, 21, 38, 0.76);
  --ct-gap: clamp(18px, 3.2vw, 34px);
  background: var(--void);
  color: var(--text);
  padding-bottom: clamp(40px, 6vw, 80px);
  overflow-x: hidden;
}

/* ── 面包屑 ───────────────────────────── */
.page-contact .ct-crumb {
  padding-top: clamp(16px, 3vw, 28px);
}
.page-contact .ct-crumb ol {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.12em;
  color: var(--mist);
}
.page-contact .ct-crumb li + li::before {
  content: "/";
  margin-right: 8px;
  color: var(--line);
}
.page-contact .ct-crumb a {
  color: var(--cyan);
  text-decoration: none;
}
.page-contact .ct-crumb a:hover,
.page-contact .ct-crumb a:focus-visible {
  text-decoration: underline;
}
.page-contact .ct-crumb [aria-current="page"] {
  color: var(--text);
}

/* ── 首屏声明 ─────────────────────────── */
.page-contact .ct-hero {
  padding-top: clamp(22px, 4vw, 42px);
  padding-bottom: clamp(24px, 4vw, 46px);
  max-width: 980px;
}
.page-contact .ct-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 16px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.2em;
  color: var(--cyan);
  text-transform: uppercase;
}
.page-contact .ct-eyebrow::before {
  content: "";
  width: 28px;
  height: 2px;
  background: var(--lava);
}
.page-contact h1 {
  margin: 0 0 18px;
  font-family: var(--font-display);
  font-size: clamp(29px, 5.4vw, 56px);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.015em;
  color: var(--text);
}
.page-contact .ct-lede {
  margin: 0;
  max-width: 68ch;
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.85;
  color: rgba(232, 237, 247, 0.84);
}

/* ── 区块通用 ─────────────────────────── */
.page-contact .ct-block {
  padding-block: clamp(24px, 4vw, 54px);
}
.page-contact .ct-band-head {
  max-width: 72ch;
  margin-bottom: clamp(18px, 2.6vw, 28px);
}
.page-contact .ct-band-title {
  margin: 0 0 12px;
  font-family: var(--font-display);
  font-size: clamp(23px, 3.4vw, 36px);
  font-weight: 800;
  line-height: 1.16;
  letter-spacing: -0.01em;
  color: var(--text);
}
.page-contact .ct-band-sub {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--mist);
}

/* ── 工单 + 闭环 双栏 ─────────────────── */
.page-contact .ct-split {
  display: grid;
  gap: var(--ct-gap);
}
.page-contact .ct-sheet {
  position: relative;
  background: var(--paper);
  color: var(--ink);
  border-radius: var(--radius);
  padding: clamp(20px, 3.4vw, 38px);
  box-shadow: var(--shadow-panel);
}
.page-contact .ct-sheet::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 7px;
  background-image: repeating-linear-gradient(90deg, rgba(16, 19, 28, 0.5) 0 1px, transparent 1px 15px);
  opacity: 0.55;
}
.page-contact .ct-sheet-head {
  padding-top: 8px;
  margin-bottom: 20px;
  border-bottom: 2px solid var(--ink);
  padding-bottom: 16px;
}
.page-contact .ct-sheet-code {
  margin: 0 0 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  color: rgba(16, 19, 28, 0.55);
}
.page-contact .ct-sheet h2 {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-size: clamp(24px, 3.2vw, 34px);
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--ink);
}
.page-contact .ct-sheet-sub {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--ct-ink-soft);
}
.page-contact .ct-sheet-label {
  margin: 22px 0 8px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--violet);
}
.page-contact .ct-fields {
  margin: 0;
  padding: 0;
  list-style: none;
}
.page-contact .ct-field {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 4px 12px;
  padding: 13px 0;
  border-bottom: 1px solid var(--ct-line-paper);
}
.page-contact .ct-field:last-child {
  border-bottom: none;
}
.page-contact .ct-field-key {
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.08em;
  color: var(--ink);
  grid-column: 1;
}
.page-contact .ct-field-desc {
  grid-column: 1 / -1;
  font-size: 13.8px;
  line-height: 1.65;
  color: var(--ct-ink-soft);
}
.page-contact .ct-chip {
  grid-column: 2;
  grid-row: 1;
  align-self: center;
  padding: 2px 8px;
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.1em;
  white-space: nowrap;
}
.page-contact .ct-chip--req {
  background: var(--ink);
  color: var(--paper);
}
.page-contact .ct-chip--opt {
  border: 1px solid rgba(16, 19, 28, 0.34);
  color: rgba(16, 19, 28, 0.66);
}

.page-contact .ct-types {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(148px, 1fr));
  gap: 10px;
  margin: 10px 0 0;
  padding: 0;
  list-style: none;
}
.page-contact .ct-type {
  background: rgba(16, 19, 28, 0.045);
  border-left: 3px solid var(--violet);
  padding: 10px 12px;
}
.page-contact .ct-type:nth-child(2) { border-left-color: var(--cyan); }
.page-contact .ct-type:nth-child(3) { border-left-color: var(--mint); }
.page-contact .ct-type:nth-child(4) { border-left-color: var(--lava); }
.page-contact .ct-type:nth-child(5) { border-left-color: #7f5cff; }
.page-contact .ct-type:nth-child(6) { border-left-color: #3fb4ff; }
.page-contact .ct-type strong {
  display: block;
  margin-bottom: 3px;
  font-family: var(--font-display);
  font-size: 14px;
  font-weight: 700;
  color: var(--ink);
}
.page-contact .ct-type span {
  font-size: 12.5px;
  line-height: 1.55;
  color: var(--ct-ink-soft);
}

/* 右侧玻璃层：闭环 */
.page-contact .ct-glass {
  background: var(--ct-glass);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: clamp(18px, 3vw, 30px);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}
.page-contact .ct-glass-code {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--lava);
}
.page-contact .ct-glass h2 {
  margin: 0 0 18px;
  font-family: var(--font-display);
  font-size: clamp(20px, 2.6vw, 27px);
  font-weight: 800;
  line-height: 1.2;
  color: var(--text);
}
.page-contact .ct-steps {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 14px;
}
.page-contact .ct-step {
  display: grid;
  grid-template-columns: 42px minmax(0, 1fr);
  gap: 12px;
  padding-bottom: 14px;
  border-bottom: 1px dashed var(--line-soft);
}
.page-contact .ct-step:last-child {
  border-bottom: none;
  padding-bottom: 0;
}
.page-contact .ct-step-num {
  display: block;
  padding: 5px 0;
  text-align: center;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--cyan);
  border: 1px solid var(--line);
  background: rgba(108, 76, 241, 0.16);
}
.page-contact .ct-step h3 {
  margin: 0 0 4px;
  font-family: var(--font-display);
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.03em;
  color: var(--text);
}
.page-contact .ct-step p {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.72;
  color: var(--mist);
}
.page-contact .ct-media {
  margin: 20px 0 0;
}
.page-contact .ct-media img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  border: 1px solid var(--line);
}
.page-contact .ct-media-cap {
  margin-top: 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--mist);
}
.page-contact .ct-ticket {
  margin: 16px 0 0;
  padding-top: 14px;
  border-top: 1px solid var(--line-soft);
  font-size: 12.5px;
  line-height: 1.75;
  color: var(--mist);
}
.page-contact .ct-ticket .mono {
  color: var(--mint);
  font-family: var(--font-mono);
}

/* ── 客服渠道带 ───────────────────────── */
.page-contact .ct-channels {
  position: relative;
  overflow: hidden;
  background: var(--cabin);
  border-block: 1px solid var(--line-soft);
}
.page-contact .ct-channels-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}
.page-contact .ct-channels-bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.24;
}
.page-contact .ct-channels-bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(7, 10, 18, 0.9), rgba(7, 10, 18, 0.56) 46%, rgba(7, 10, 18, 0.94));
}
.page-contact .ct-channels-inner {
  position: relative;
  z-index: 1;
}
.page-contact .ct-chan-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
  margin: 0;
  padding: 0;
  list-style: none;
}
.page-contact .ct-chan-card {
  background: rgba(7, 10, 18, 0.66);
  border: 1px solid var(--line);
  border-top: 2px solid var(--cyan);
  padding: 16px;
}
.page-contact .ct-chan-card--lava { border-top-color: var(--lava); }
.page-contact .ct-chan-card--mint { border-top-color: var(--mint); }
.page-contact .ct-chan-key {
  margin: 0 0 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--mist);
}
.page-contact .ct-chan-val {
  margin: 0 0 8px;
  font-size: 15px;
  line-height: 1.5;
  font-weight: 600;
  color: var(--text);
  overflow-wrap: anywhere;
}
.page-contact .ct-chan-val--mono {
  font-family: var(--font-mono);
  font-size: 14px;
  letter-spacing: 0.01em;
}
.page-contact .ct-chan-hint {
  margin: 0;
  font-size: 12.5px;
  line-height: 1.65;
  color: var(--mist);
}

/* ── 合作主题 ─────────────────────────── */
.page-contact .ct-coop-block {
  background:
    linear-gradient(180deg, rgba(14, 21, 38, 0.55), rgba(7, 10, 18, 0)),
    var(--void);
}
.page-contact .ct-coop {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
  margin: 0;
  padding: 0;
  list-style: none;
}
.page-contact .ct-coop-card {
  position: relative;
  background: var(--cabin);
  border: 1px solid var(--line);
  border-left: 2px solid var(--violet);
  padding: 18px;
  transition: transform 0.22s var(--ease), border-color 0.22s var(--ease);
}
.page-contact .ct-coop-card:hover {
  transform: translateY(-3px);
  border-left-color: var(--cyan);
}
.page-contact .ct-coop-card h3 {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 700;
  letter-spacing: 0.01em;
  color: var(--text);
}
.page-contact .ct-coop-card p {
  margin: 0 0 14px;
  font-size: 13.8px;
  line-height: 1.75;
  color: var(--mist);
}
.page-contact .ct-coop-link {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(53, 230, 255, 0.4);
  padding-bottom: 2px;
}
.page-contact .ct-coop-link:hover,
.page-contact .ct-coop-link:focus-visible {
  color: var(--paper);
  border-bottom-color: var(--paper);
}

/* ── 提交前清单 ───────────────────────── */
.page-contact .ct-prep {
  border-top: 1px solid var(--line-soft);
}
.page-contact .ct-prep-grid {
  display: grid;
  gap: var(--ct-gap);
}
.page-contact .ct-check {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: ct-check;
}
.page-contact .ct-check li {
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr);
  gap: 12px;
  align-items: start;
  padding: 13px 14px;
  background: rgba(242, 233, 216, 0.05);
  border: 1px solid var(--line-soft);
  font-size: 13.8px;
  line-height: 1.7;
  color: var(--mist);
}
.page-contact .ct-check-num {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--lava);
  letter-spacing: 0.06em;
}
.page-contact .ct-check strong {
  display: block;
  margin-bottom: 2px;
  font-family: var(--font-display);
  font-size: 14.5px;
  font-weight: 700;
  color: var(--text);
}

/* ── 尾部指引 ─────────────────────────── */
.page-contact .ct-tail {
  border-top: 1px solid var(--line-soft);
}
.page-contact .ct-tail-inner {
  display: grid;
  gap: 20px;
  padding: clamp(20px, 3vw, 32px);
  background: var(--cabin);
  border: 1px solid var(--line);
  border-left: 3px solid var(--cyan);
}
.page-contact .ct-tail-title {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-size: clamp(20px, 2.6vw, 28px);
  font-weight: 800;
  color: var(--text);
}
.page-contact .ct-tail-sub {
  margin: 0;
  max-width: 62ch;
  font-size: 14px;
  line-height: 1.8;
  color: var(--mist);
}
.page-contact .ct-tail-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
}
.page-contact .ct-tail-actions .btn {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding-inline: 18px;
  text-decoration: none;
}
.page-contact .ct-tail-link {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--cyan);
  text-decoration: none;
}
.page-contact .ct-tail-link:hover,
.page-contact .ct-tail-link:focus-visible {
  text-decoration: underline;
}
.page-contact a:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
}

/* ── 响应式 ───────────────────────────── */
@media (min-width: 560px) {
  .page-contact .ct-field {
    grid-template-columns: 128px minmax(0, 1fr) auto;
    align-items: center;
  }
  .page-contact .ct-field-desc {
    grid-column: 2;
  }
  .page-contact .ct-chip {
    grid-column: 3;
  }
  .page-contact .ct-chan-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .page-contact .ct-coop {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 920px) {
  .page-contact .ct-split {
    grid-template-columns: minmax(0, 1.42fr) minmax(0, 1fr);
    align-items: start;
  }
  .page-contact .ct-glass {
    position: sticky;
    top: 96px;
  }
  .page-contact .ct-chan-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
  .page-contact .ct-prep-grid {
    grid-template-columns: minmax(0, 0.82fr) minmax(0, 1.18fr);
    align-items: start;
  }
  .page-contact .ct-check {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .page-contact .ct-tail-inner {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
    gap: 28px;
  }
}

@media (min-width: 1100px) {
  .page-contact .ct-coop {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .ct-coop-card,
  .page-contact .ct-coop-card:hover {
    transform: none;
    transition: none;
  }
}