/* ===== 联系我们 page-contact ===== */
.page-contact {
  --ct-radius: 18px;
  --ct-gap: clamp(1.6rem, 3.4vw, 3rem);
  --ct-cyan-line: rgba(36, 224, 224, 0.26);
}

.page-contact a:focus-visible,
.page-contact button:focus-visible,
.page-contact summary:focus-visible {
  outline: 2px solid var(--ds-cyan);
  outline-offset: 3px;
  border-radius: 4px;
}

/* --- 首屏 --- */
.page-contact .ct-hero {
  position: relative;
  padding-top: clamp(1.6rem, 4.6vw, 3rem);
  padding-bottom: clamp(2rem, 6vw, 4rem);
  overflow: hidden;
}

.page-contact .ct-hero::before {
  content: "";
  position: absolute;
  inset: -30% -10% auto -10%;
  height: 70%;
  background:
    radial-gradient(58% 100% at 18% 0%, rgba(36, 224, 224, 0.14), transparent 70%),
    radial-gradient(52% 100% at 88% 8%, rgba(255, 90, 31, 0.10), transparent 70%);
  pointer-events: none;
  z-index: 0;
}

.page-contact .ct-hero .ds-container {
  position: relative;
  z-index: 1;
}

.page-contact .ct-hero__head {
  display: grid;
  gap: 0.85rem;
  margin-bottom: clamp(1.3rem, 3vw, 2rem);
}

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

.page-contact .ct-hero__lede {
  max-width: 36rem;
  margin: 0;
}

.page-contact .ct-hero__meta {
  list-style: none;
  margin: 0 0 clamp(1.5rem, 4vw, 2.3rem);
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem 1.6rem;
  font-size: 0.88rem;
  letter-spacing: 0.02em;
  color: var(--ds-mist);
}

.page-contact .ct-meta-item {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
}

.page-contact .ct-meta-item::before {
  content: "";
  flex: none;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--ds-cyan);
}

.page-contact .ct-meta-item:nth-child(2)::before {
  background: var(--ds-signal);
}

/* --- 媒体容器 --- */
.page-contact .ct-media {
  margin: 0;
  position: relative;
  overflow: hidden;
  border-radius: var(--ct-radius);
  border: 1px solid var(--ds-line);
  background:
    radial-gradient(120% 140% at 15% 10%, rgba(36, 224, 224, 0.18), transparent 62%),
    linear-gradient(150deg, var(--ds-indigo-lift), var(--ds-night));
}

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

.page-contact .ct-media--wide {
  aspect-ratio: 16 / 9;
}

.page-contact .ct-media--43 {
  aspect-ratio: 4 / 3;
}

@media (min-width: 760px) {
  .page-contact .ct-media--wide {
    aspect-ratio: 21 / 9;
  }
}

/* --- 联系路径 + 受理与问题 --- */
.page-contact .ct-contact__lede {
  margin: 0.9rem 0 0;
  max-width: 40rem;
}

.page-contact .ct-shell {
  display: grid;
  gap: var(--ct-gap);
  margin-top: clamp(1.5rem, 4vw, 2.4rem);
}

.page-contact .ct-shell__aside {
  display: grid;
  gap: 1rem;
  align-content: start;
}

.page-contact .ct-channels {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  border: 1px solid var(--ds-line);
  border-radius: var(--ct-radius);
  background: linear-gradient(168deg, rgba(22, 34, 77, 0.92), rgba(14, 22, 51, 0.94));
  overflow: hidden;
}

.page-contact .ct-channel {
  display: grid;
  gap: 0.45rem;
  padding: 1.15rem 1.2rem 1.3rem;
}

.page-contact .ct-channel + .ct-channel {
  border-top: 1px solid var(--ct-cyan-line);
}

.page-contact .ct-channel__num {
  font-family: var(--ds-font-mono);
  font-size: 0.76rem;
  letter-spacing: 0.18em;
  color: var(--ds-cyan);
}

.page-contact .ct-channel__title {
  margin: 0;
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: 0.01em;
  color: var(--ds-ice);
}

.page-contact .ct-channel__value {
  margin: 0;
  font-family: var(--ds-font-mono);
  font-size: 0.98rem;
  line-height: 1.55;
  color: var(--ds-cyan);
  overflow-wrap: anywhere;
}

.page-contact .ct-channel__value--plain {
  color: var(--ds-ice);
  font-family: var(--ds-font-body);
}

.page-contact .ct-channel__note {
  margin: 0;
  font-size: 0.88rem;
  line-height: 1.75;
  color: var(--ds-mist);
}

.page-contact .ct-shell__main {
  display: grid;
  gap: var(--ct-gap);
  min-width: 0;
}

.page-contact .ct-hours {
  padding: clamp(1.3rem, 3vw, 1.85rem);
  border-radius: var(--ct-radius);
}

.page-contact .ct-hours__title {
  display: flex;
  align-items: baseline;
  gap: 0.7rem;
  margin: 0 0 1.05rem;
  font-size: 1.08rem;
  font-weight: 700;
  color: var(--ds-ice);
}

.page-contact .ct-hours__title::before {
  content: "";
  align-self: center;
  flex: none;
  width: 22px;
  height: 2px;
  background: var(--ds-cyan);
}

.page-contact .ct-hours__list {
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.85rem;
}

.page-contact .ct-hours__item {
  display: grid;
  gap: 0.25rem;
}

.page-contact .ct-hours__item dt {
  font-size: 0.78rem;
  letter-spacing: 0.12em;
  color: var(--ds-mist);
}

.page-contact .ct-hours__item dd {
  margin: 0;
  font-size: 0.96rem;
  line-height: 1.78;
  color: var(--ds-ice);
}

.page-contact .ct-hours__time {
  font-family: var(--ds-font-mono);
  font-size: 1.02rem;
  color: var(--ds-cyan);
}

.page-contact .ct-hours__time--signal {
  color: var(--ds-signal);
}

.page-contact .ct-asks {
  display: grid;
  gap: 1.05rem;
}

.page-contact .ct-asks__title {
  margin: 0;
  font-size: clamp(1.35rem, 3vw, 1.7rem);
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--ds-ice);
}

.page-contact .ct-asks__lede {
  margin: 0;
  max-width: 34rem;
  font-size: 0.96rem;
  line-height: 1.8;
  color: var(--ds-mist);
}

.page-contact .ct-asks__grid {
  display: grid;
  gap: 1rem;
}

.page-contact .ct-ask {
  display: grid;
  gap: 0.6rem;
  align-content: start;
  padding: 1.1rem 1.15rem 1.25rem;
  border: 1px solid var(--ds-line);
  border-radius: 16px;
  background: rgba(22, 34, 77, 0.45);
  transition: border-color 0.2s var(--ds-ease);
}

.page-contact .ct-ask:hover {
  border-color: var(--ds-line-strong);
}

.page-contact .ct-ask__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.8rem;
  flex-wrap: wrap;
}

.page-contact .ct-ask__title {
  margin: 0;
  font-size: 1rem;
  font-weight: 700;
  color: var(--ds-ice);
}

.page-contact .ct-ask__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.45rem;
  font-size: 0.9rem;
  line-height: 1.75;
  color: var(--ds-mist);
}

.page-contact .ct-ask__list li {
  position: relative;
  padding-left: 1rem;
}

.page-contact .ct-ask__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.75em;
  width: 0.5rem;
  height: 1px;
  background: var(--ds-cyan);
}

/* --- 合作与数据接口 --- */
.page-contact .ct-partner__lede {
  margin: 0.9rem 0 0;
  max-width: 38rem;
}

.page-contact .ct-steps {
  list-style: none;
  margin: clamp(1.4rem, 3.5vw, 2.2rem) 0 0;
  padding: 0;
  border-top: 1px solid var(--ds-line);
}

.page-contact .ct-step {
  border-bottom: 1px solid var(--ds-line);
}

.page-contact .ct-step__summary {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) 22px;
  align-items: center;
  gap: 0 0.9rem;
  padding: 1.05rem 0.15rem;
  cursor: pointer;
  list-style: none;
}

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

.page-contact .ct-step__num {
  font-family: var(--ds-font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.16em;
  color: var(--ds-cyan);
}

.page-contact .ct-step__title {
  font-size: 1.02rem;
  font-weight: 700;
  color: var(--ds-ice);
}

.page-contact .ct-step__mark {
  position: relative;
  justify-self: end;
  width: 22px;
  height: 22px;
}

.page-contact .ct-step__mark::before,
.page-contact .ct-step__mark::after {
  content: "";
  position: absolute;
  background: var(--ds-cyan);
}

.page-contact .ct-step__mark::before {
  left: 0;
  right: 0;
  top: 50%;
  height: 1.5px;
  transform: translateY(-50%);
}

.page-contact .ct-step__mark::after {
  top: 0;
  bottom: 0;
  left: 50%;
  width: 1.5px;
  transform: translateX(-50%) scaleY(1);
  transition: transform 0.22s var(--ds-ease);
}

.page-contact .ct-step[open] .ct-step__mark::after {
  transform: translateX(-50%) scaleY(0);
}

.page-contact .ct-step__body {
  display: grid;
  gap: 0.7rem;
  padding: 0 0.15rem 1.3rem;
  max-width: 46rem;
  font-size: 0.94rem;
  line-height: 1.82;
  color: var(--ds-mist);
}

.page-contact .ct-step__body p {
  margin: 0;
}

.page-contact .ct-partner__foot {
  margin: clamp(1.4rem, 3vw, 2rem) 0 0;
  padding: 0.95rem 1.1rem;
  border-left: 2px solid var(--ds-amber);
  border-radius: 12px;
  background: rgba(255, 194, 75, 0.06);
  font-size: 0.92rem;
  line-height: 1.8;
  color: var(--ds-mist);
}

/* --- 服务区域与到访 --- */
.page-contact .ct-region__grid {
  display: grid;
  gap: var(--ct-gap);
  margin-top: clamp(1.5rem, 4vw, 2.4rem);
}

.page-contact .ct-region__body {
  display: grid;
  gap: 1.1rem;
  align-content: start;
}

.page-contact .ct-region__body p {
  margin: 0;
  max-width: 34rem;
  font-size: 0.97rem;
  line-height: 1.85;
  color: var(--ds-mist);
}

.page-contact .ct-region__stats {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.8rem;
}

.page-contact .ct-stat {
  display: grid;
  gap: 0.25rem;
  padding: 0.9rem 1rem;
  border: 1px solid var(--ds-line);
  border-radius: 14px;
  background: rgba(14, 22, 51, 0.7);
}

.page-contact .ct-stat__num {
  font-family: var(--ds-font-mono);
  font-size: 1.35rem;
  letter-spacing: 0.01em;
  color: var(--ds-cyan);
}

.page-contact .ct-stat__label {
  font-size: 0.84rem;
  letter-spacing: 0.03em;
  color: var(--ds-mist);
}

.page-contact .ct-region__visit {
  padding-top: 1rem;
  border-top: 1px solid var(--ct-cyan-line);
}

/* --- 提交前的小提示 --- */
.page-contact .ct-tips__lede {
  margin: 0.9rem 0 0;
  max-width: 34rem;
}

.page-contact .ct-tips__list {
  list-style: none;
  counter-reset: ct-tip;
  margin: clamp(1.4rem, 3.5vw, 2rem) 0 0;
  padding: 0;
  display: grid;
  gap: 0.95rem;
}

.page-contact .ct-tip {
  position: relative;
  padding-left: 2.3rem;
  font-size: 0.95rem;
  line-height: 1.82;
  color: var(--ds-mist);
}

.page-contact .ct-tip::before {
  counter-increment: ct-tip;
  content: counter(ct-tip, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 0.1em;
  font-family: var(--ds-font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  color: var(--ds-cyan);
}

.page-contact .ct-tips__foot {
  margin: clamp(1.5rem, 3.5vw, 2.1rem) 0 0;
  font-size: 0.93rem;
  line-height: 1.85;
  color: var(--ds-mist);
}

.page-contact .ct-tips__foot a {
  color: var(--ds-cyan);
  text-decoration: none;
  border-bottom: 1px solid var(--ct-cyan-line);
  transition: border-color 0.2s var(--ds-ease);
}

.page-contact .ct-tips__foot a:hover {
  border-bottom-color: var(--ds-cyan);
}

/* --- 响应式 --- */
@media (min-width: 620px) {
  .page-contact .ct-region__stats {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 720px) {
  .page-contact .ct-asks__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 800px) {
  .page-contact .ct-tips__list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1rem 2rem;
  }
}

@media (min-width: 900px) {
  .page-contact .ct-region__grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr);
    align-items: center;
  }
}

@media (min-width: 1000px) {
  .page-contact .ct-shell {
    grid-template-columns: minmax(0, 330px) minmax(0, 1fr);
    gap: clamp(2rem, 5vw, 4.4rem);
    align-items: start;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .ct-ask,
  .page-contact .ct-step__mark::after,
  .page-contact .ct-tips__foot a {
    transition: none;
  }
}