.page-contact {
  --ct-hair: rgba(255, 255, 255, .10);
  --ct-hair-strong: rgba(255, 255, 255, .20);
  --ct-pad: clamp(20px, 3vw, 34px);
  --ct-rhythm: clamp(48px, 7vw, 96px);
  padding-bottom: clamp(20px, 4vw, 36px);
  overflow-x: clip;
}

/* ---------- 标题区 ---------- */
.page-contact .ct-head {
  padding-top: clamp(22px, 4.5vw, 56px);
}

.page-contact .ct-head .page-head__title {
  max-width: 20ch;
}

.page-contact .ct-head .page-lead {
  max-width: 62ch;
  color: var(--ao-muted);
}

/* ---------- 顶部宽幅图 ---------- */
.page-contact .ct-hero {
  margin: clamp(24px, 4vw, 42px) auto 0;
  position: relative;
  isolation: isolate;
}

.page-contact .ct-hero img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 5 / 2;
  object-fit: cover;
  border-radius: var(--radius);
  filter: saturate(.7) brightness(.78) contrast(1.06);
}

.page-contact .ct-hero::after {
  content: "";
  position: absolute;
  inset: auto 0 -1px 0;
  height: 60%;
  border-radius: var(--radius);
  background: linear-gradient(180deg, rgba(8, 10, 13, 0) 0%, rgba(8, 10, 13, .7) 62%, var(--ao-950) 100%);
  pointer-events: none;
}

/* ---------- 三条联系路径 ---------- */
.page-contact .ct-routes {
  margin-top: clamp(34px, 5.5vw, 76px);
}

.page-contact .ct-routes__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(24px, 3.4vw, 42px);
  margin-top: clamp(24px, 3.6vw, 42px);
}

.page-contact .ct-card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: calc(var(--ct-pad) + 6px) var(--ct-pad) var(--ct-pad);
  border: 1px solid var(--ct-hair);
  border-radius: var(--radius);
  overflow: hidden;
}

.page-contact .ct-card::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 3px;
  background: var(--ct-accent, var(--ao-red));
}

.page-contact .ct-card--mail { --ct-accent: var(--ao-red); }
.page-contact .ct-card--tel  { --ct-accent: var(--ao-amber); }
.page-contact .ct-card--addr { --ct-accent: var(--ao-cyan); }

.page-contact .ct-card .tag {
  align-self: flex-start;
}

.page-contact .ct-card__title {
  margin: 2px 0 0;
  font-family: var(--font-display);
  font-size: 19px;
  letter-spacing: .04em;
}

.page-contact .ct-value {
  margin: 0;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 15px;
  line-height: 1.55;
  color: var(--ao-ink);
  word-break: break-word;
}

.page-contact .ct-value--tel {
  font-size: clamp(24px, 3.6vw, 34px);
  letter-spacing: .02em;
  color: var(--ao-amber);
}

.page-contact .ct-value--addr {
  font-size: 14.5px;
  font-weight: 500;
  color: var(--ao-cyan);
}

.page-contact .ct-card__note {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--ao-muted);
}

.page-contact .ct-list {
  list-style: none;
  margin: 4px 0 0;
  padding: 0;
  display: grid;
  gap: 0;
}

.page-contact .ct-list li {
  padding-top: 9px;
  margin-top: 9px;
  border-top: 1px solid var(--ct-hair);
  font-size: 14px;
  line-height: 1.7;
  color: var(--ao-muted);
}

.page-contact .ct-list li:first-child {
  padding-top: 0;
  margin-top: 0;
  border-top: 0;
}

/* ---------- 收窄单栏 ---------- */
.page-contact .ct-narrow {
  width: min(100% - 32px, 940px);
  margin-inline: auto;
  margin-top: clamp(46px, 6.4vw, 92px);
}

/* ---------- 问题描述模板 ---------- */
.page-contact .ct-fields {
  list-style: none;
  margin: clamp(24px, 3.4vw, 38px) 0 0;
  padding: 0;
  background: var(--ao-900);
  border: 1px solid var(--ct-hair);
  border-left: 3px solid var(--ao-red);
  border-radius: var(--radius);
}

.page-contact .ct-field {
  display: grid;
  grid-template-columns: 2.4em minmax(0, 1fr);
  gap: 4px 12px;
  padding: 15px clamp(16px, 2.4vw, 26px);
  border-bottom: 1px solid var(--ct-hair);
}

.page-contact .ct-field:last-child {
  border-bottom: 0;
}

.page-contact .ct-field__no {
  grid-column: 1;
  font-family: var(--font-mono);
  font-size: 12.5px;
  color: var(--ao-red-hi);
  padding-top: 3px;
}

.page-contact .ct-field__key {
  grid-column: 2;
  font-family: var(--font-mono);
  font-size: 13.5px;
  letter-spacing: .04em;
  color: var(--ao-ink);
}

.page-contact .ct-field__desc {
  grid-column: 2;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--ao-muted);
}

/* ---------- 处理流程 ---------- */
.page-contact .ct-flow {
  list-style: none;
  margin: clamp(24px, 3.4vw, 38px) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(24px, 3vw, 30px);
}

.page-contact .ct-flow__step {
  position: relative;
  padding: clamp(20px, 2.6vw, 28px);
  background: var(--ao-800);
  border: 1px solid var(--ct-hair);
  border-radius: var(--radius);
}

.page-contact .ct-flow__no {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .18em;
  color: var(--ao-red-hi);
}

.page-contact .ct-flow__title {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-size: 18px;
  letter-spacing: .05em;
}

.page-contact .ct-flow__text {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--ao-muted);
}

.page-contact .ct-flow__step::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: -18px;
  width: 1px;
  height: 12px;
  background: var(--ao-700);
  transform: translateX(-50%);
}

.page-contact .ct-flow__step:last-child::after {
  display: none;
}

/* ---------- 自查区 ---------- */
.page-contact .ct-check-sec {
  margin-top: clamp(46px, 6.4vw, 92px);
}

.page-contact .ct-checkwrap {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(24px, 3.4vw, 40px);
  margin-top: clamp(24px, 3.4vw, 40px);
}

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

.page-contact .ct-checkwrap__fig img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  border: 1px solid var(--ct-hair);
  border-radius: var(--radius);
  filter: grayscale(.4) brightness(.8);
}

.page-contact .ct-checks {
  display: grid;
  gap: 10px;
  align-content: start;
}

.page-contact .ct-check {
  background: var(--ao-900);
  border: 1px solid var(--ct-hair);
  border-radius: var(--radius);
}

.page-contact .ct-check > summary {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px clamp(16px, 2.2vw, 22px);
  cursor: pointer;
  list-style: none;
  font-family: var(--font-display);
  font-size: 17px;
  letter-spacing: .04em;
  color: var(--ao-ink);
}

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

.page-contact .ct-check > summary:hover {
  color: var(--ao-red-hi);
}

.page-contact .ct-check[open] > summary {
  border-bottom: 1px solid var(--ct-hair);
}

.page-contact .ct-check__idx {
  font-family: var(--font-mono);
  font-size: 12.5px;
  color: var(--ao-cyan);
  letter-spacing: .1em;
}

.page-contact .ct-check__body {
  padding: 14px clamp(16px, 2.2vw, 22px) 20px;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--ao-muted);
}

.page-contact .ct-links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 18px;
  margin-top: clamp(14px, 2.4vw, 22px);
}

.page-contact .ct-links a {
  font-size: 13.5px;
  color: var(--ao-cyan);
  text-decoration: none;
  padding-bottom: 2px;
  border-bottom: 1px solid rgba(53, 214, 224, .35);
}

.page-contact .ct-links a:hover,
.page-contact .ct-links a:focus-visible {
  color: var(--ao-ink);
  border-bottom-color: var(--ao-cyan);
}

/* ---------- 备案信息条 ---------- */
.page-contact .ct-legal {
  margin-top: var(--ct-rhythm);
  background: var(--ao-900);
  border-top: 1px solid var(--ct-hair-strong);
  border-bottom: 1px solid var(--ct-hair);
}

.page-contact .ct-legal__inner {
  width: min(100% - 32px, 1340px);
  margin: 0 auto;
  padding: clamp(24px, 3.6vw, 40px) 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 18px;
}

.page-contact .ct-legal__item {
  display: grid;
  gap: 6px;
}

.page-contact .ct-legal__key {
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--ao-muted);
}

.page-contact .ct-legal__val {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 15px;
  color: var(--ao-ink);
  word-break: break-word;
}

/* ---------- 断点 ---------- */
@media (min-width: 720px) {
  .page-contact .ct-field {
    grid-template-columns: 2.8em 148px minmax(0, 1fr);
    align-items: baseline;
    gap: 4px 18px;
  }

  .page-contact .ct-legal__inner {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: clamp(20px, 3vw, 44px);
  }
}

@media (min-width: 820px) {
  .page-contact .ct-routes__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    align-items: start;
  }
}

@media (min-width: 880px) {
  .page-contact .ct-flow {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: clamp(18px, 2.4vw, 30px);
  }

  .page-contact .ct-flow__step::after {
    left: auto;
    right: calc(-1 * clamp(18px, 2.4vw, 30px) / 2);
    bottom: auto;
    top: 50%;
    width: clamp(18px, 2.4vw, 30px);
    height: 1px;
    transform: none;
    background: linear-gradient(90deg, var(--ao-700), rgba(34, 40, 49, 0));
  }

  .page-contact .ct-checkwrap {
    grid-template-columns: minmax(0, 340px) minmax(0, 1fr);
    align-items: start;
  }
}

@media (min-width: 1180px) {
  .page-contact .ct-checkwrap {
    grid-template-columns: minmax(0, 400px) minmax(0, 1fr);
  }
}

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