.page-contact {
  --ct-edge: 2px solid var(--ink-900);
  overflow-x: hidden;
}

/* ---------- 首屏 ---------- */
.page-contact .ct-hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 26px;
  margin-top: 20px;
}

.page-contact .ct-kicker {
  margin: 0 0 14px;
  padding-left: 12px;
  border-left: 6px solid var(--neon-400);
  font-size: 13px;
  line-height: 1.5;
  letter-spacing: 0.04em;
  color: var(--text-500);
}

.page-contact h1 {
  margin: 0 0 18px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(28px, 5vw, 46px);
  line-height: 1.08;
  letter-spacing: -0.02em;
  color: var(--text-900);
}

.page-contact .ct-lede {
  margin: 0;
  max-width: 60ch;
  font-size: 16.5px;
  line-height: 1.78;
  color: var(--text-900);
}

.page-contact .ct-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 22px 0 0;
  padding: 0;
  list-style: none;
}

.page-contact .ct-hero__visual {
  margin: 0;
  border: var(--ct-edge);
  background: var(--ink-900);
  box-shadow: var(--shadow-hard);
}

.page-contact .ct-hero__visual img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
}

.page-contact .ct-hero__visual figcaption {
  padding: 9px 14px;
  font-size: 12.5px;
  letter-spacing: 0.02em;
  color: var(--neon-400);
  background: var(--ink-900);
  border-top: 2px solid var(--ink-line);
}

@media (min-width: 920px) {
  .page-contact .ct-hero {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    gap: 46px;
    align-items: end;
  }
  .page-contact .ct-hero__visual {
    margin-bottom: 6px;
  }
}

/* ---------- 三渠道 ---------- */
.page-contact .ct-channels {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 20px;
}

@media (min-width: 760px) {
  .page-contact .ct-channels {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    align-items: start;
  }
  .page-contact .ct-channel:nth-child(2) {
    margin-top: 26px;
  }
}

.page-contact .ct-channel {
  background: var(--paper-50);
  border: var(--ct-edge);
  border-top: 8px solid var(--sky-600);
  box-shadow: var(--shadow-hard);
  padding: 20px 18px 22px;
  transition: transform 180ms ease, box-shadow 180ms ease;
}

.page-contact .ct-channel--phone { border-top-color: var(--aqua-400); }
.page-contact .ct-channel--addr { border-top-color: var(--amber-400); }

.page-contact .ct-channel:hover,
.page-contact .ct-channel:focus-within {
  transform: translate(2px, 2px);
  box-shadow: 2px 2px 0 var(--ink-900);
}

.page-contact .ct-channel__label {
  margin: 0 0 10px;
  font-size: 12.5px;
  letter-spacing: 0.05em;
  color: var(--text-500);
}

.page-contact .ct-channel__title {
  margin: 0 0 14px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 21px;
  line-height: 1.2;
  letter-spacing: -0.01em;
  color: var(--text-900);
}

.page-contact .ct-channel__value {
  margin: 0 0 14px;
  padding: 10px 12px;
  background: var(--sky-100);
  border-left: 5px solid var(--sky-700);
  font-family: var(--font-mono);
  font-size: 14.5px;
  line-height: 1.55;
  letter-spacing: 0.01em;
  color: var(--sky-700);
  overflow-wrap: anywhere;
}

.page-contact .ct-channel__value--addr {
  font-size: 14px;
  border-left-color: var(--amber-400);
}

.page-contact .ct-channel__note {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--text-500);
}

.page-contact .ct-more {
  margin-top: 16px;
  padding-top: 12px;
  border-top: 2px solid var(--line-200);
}

.page-contact .ct-more summary {
  display: flex;
  align-items: center;
  gap: 9px;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.02em;
  color: var(--sky-700);
}

.page-contact .ct-more summary::-webkit-details-marker { display: none; }

.page-contact .ct-more summary::before {
  content: "+";
  display: grid;
  place-items: center;
  flex: none;
  width: 18px;
  height: 18px;
  background: var(--ink-900);
  color: var(--neon-400);
  font-size: 13px;
  line-height: 1;
}

.page-contact .ct-more[open] summary::before { content: "–"; }

.page-contact .ct-more__list {
  margin: 12px 0 0;
  padding-left: 18px;
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--text-500);
}

.page-contact .ct-more__list li + li { margin-top: 6px; }

/* ---------- 受理边界 ---------- */
.page-contact .ct-scope {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 18px;
}

@media (min-width: 760px) {
  .page-contact .ct-scope { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); }
}

.page-contact .ct-scope__col {
  border: var(--ct-edge);
  padding: 20px 18px 22px;
}

.page-contact .ct-scope__col--yes {
  background: var(--paper-50);
  box-shadow: var(--shadow-line);
}

.page-contact .ct-scope__col--no {
  background: var(--ink-900);
  color: var(--paper-50);
}

.page-contact .ct-scope__head {
  margin: 0 0 14px;
  padding-bottom: 10px;
  border-bottom: 2px solid var(--line-200);
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 19px;
  letter-spacing: 0.01em;
  color: var(--text-900);
}

.page-contact .ct-scope__col--no .ct-scope__head {
  border-bottom-color: var(--ink-line);
  color: var(--neon-400);
}

.page-contact .ct-scope__list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-contact .ct-scope__list li {
  position: relative;
  padding-left: 20px;
  font-size: 15px;
  line-height: 1.72;
  color: var(--text-500);
}

.page-contact .ct-scope__list li + li { margin-top: 11px; }

.page-contact .ct-scope__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.62em;
  width: 8px;
  height: 8px;
  background: var(--sky-600);
}

.page-contact .ct-scope__col--no .ct-scope__list li { color: var(--sky-100); }

.page-contact .ct-scope__col--no .ct-scope__list li::before { background: var(--amber-400); }

.page-contact .ct-scope__foot {
  margin: 22px 0 0;
  padding-left: 14px;
  border-left: 5px solid var(--violet-400);
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--text-500);
}

.page-contact .ct-scope__foot a {
  color: var(--sky-600);
  font-weight: 500;
  text-decoration-thickness: 2px;
  text-underline-offset: 3px;
}

/* ---------- 纠错流程 ---------- */
.page-contact .ct-flow {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  background: var(--paper-50);
  border: var(--ct-edge);
  box-shadow: var(--shadow-hard);
}

@media (min-width: 820px) {
  .page-contact .ct-flow { grid-template-columns: repeat(4, minmax(0, 1fr)); }
}

.page-contact .ct-step {
  padding: 22px 20px 24px;
  border-top: 2px solid var(--line-200);
  transition: background-color 160ms ease;
}

.page-contact .ct-step:first-child { border-top: 0; }

@media (min-width: 820px) {
  .page-contact .ct-step {
    border-top: 0;
    border-left: 2px solid var(--line-200);
  }
  .page-contact .ct-step:first-child { border-left: 0; }
}

.page-contact .ct-step:hover { background: var(--sky-100); }

.page-contact .ct-step__num {
  display: inline-block;
  margin: 0 0 12px;
  padding: 3px 9px;
  background: var(--ink-900);
  color: var(--neon-400);
  font-size: 12.5px;
  letter-spacing: 0.06em;
  line-height: 1.4;
}

.page-contact .ct-step__title {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 18px;
  line-height: 1.25;
  color: var(--text-900);
}

.page-contact .ct-step__text {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.72;
  color: var(--text-500);
}

.page-contact .ct-flow__visual {
  margin: 26px 0 0;
  border: var(--ct-edge);
  background: var(--ink-900);
  box-shadow: var(--shadow-hard);
}

.page-contact .ct-flow__visual img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 10 / 3;
  object-fit: cover;
}

.page-contact .ct-flow__visual figcaption {
  padding: 9px 14px;
  font-size: 12.5px;
  letter-spacing: 0.02em;
  color: var(--aqua-400);
  border-top: 2px solid var(--ink-line);
}

.page-contact .ct-flow__foot {
  margin: 20px 0 0;
  font-size: 14.5px;
  line-height: 1.72;
  color: var(--text-500);
}

.page-contact .ct-flow__foot a {
  color: var(--sky-600);
  font-weight: 500;
  text-decoration-thickness: 2px;
  text-underline-offset: 3px;
}

/* ---------- 备案信息条 ---------- */
.page-contact .ct-regbar {
  margin-top: 46px;
  background: var(--ink-900);
  border-top: 2px solid var(--neon-400);
}

.page-contact .ct-regbar__inner {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 30px;
  padding: 16px 0 18px;
}

.page-contact .ct-regbar__inner p {
  margin: 0;
  font-size: 12.5px;
  letter-spacing: 0.03em;
  line-height: 1.6;
  color: var(--sky-100);
  overflow-wrap: anywhere;
}

.page-contact .ct-regbar__inner p:first-child { color: var(--paper-50); }

/* ---------- 返回顶部 ---------- */
.page-contact .to-top {
  margin: 22px 0 8px;
  border: 2px solid var(--ink-900);
  background: var(--paper-50);
  box-shadow: 4px 4px 0 var(--ink-900);
  padding: 9px 18px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.04em;
  color: var(--text-900);
  cursor: pointer;
  transition: transform 160ms ease, box-shadow 160ms ease;
}

.page-contact .to-top:hover {
  transform: translate(2px, 2px);
  box-shadow: 2px 2px 0 var(--ink-900);
}

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