.page-contact {
  --ct-side-w: 320px;
  --ct-sticky-top: 96px;
  color: var(--c-bone);
  font-family: var(--f-body);
  padding: 28px 0 56px;
}

/* ---------- 页头 ---------- */
.page-contact .ct-head {
  margin-top: 20px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--c-line);
}

.page-contact .ct-head__kicker {
  margin: 0;
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--c-cyan);
}

.page-contact .ct-head__title {
  margin: 10px 0 0;
  font-family: var(--f-head);
  font-size: clamp(26px, 5.2vw, 40px);
  font-weight: 700;
  line-height: 1.08;
  letter-spacing: .01em;
  color: var(--c-bone);
}

.page-contact .ct-head__lede {
  max-width: 74ch;
  margin: 14px 0 0;
  font-size: 15px;
  line-height: 1.55;
  color: var(--c-bone);
  opacity: .84;
}

.page-contact .ct-head__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 18px 0 0;
  padding: 0;
  list-style: none;
}

/* ---------- 双栏骨架 ---------- */
.page-contact .ct-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
  margin-top: 32px;
}

@media (min-width: 1024px) {
  .page-contact .ct-layout {
    grid-template-columns: var(--ct-side-w) minmax(0, 1fr);
    gap: 48px;
    align-items: start;
  }
}

/* ---------- 左侧联系栏 ---------- */
.page-contact .ct-side__inner {
  border: 1px solid var(--c-line);
  border-top: 2px solid var(--c-cyan);
  background: var(--c-panel);
  padding: 20px 18px 18px;
}

@media (min-width: 1024px) {
  .page-contact .ct-side__inner {
    position: sticky;
    top: var(--ct-sticky-top);
  }
}

.page-contact .ct-side__title {
  margin: 0;
  font-family: var(--f-head);
  font-size: 18px;
  font-weight: 700;
  letter-spacing: .02em;
  color: var(--c-bone);
}

.page-contact .ct-side__note {
  margin: 10px 0 0;
  font-size: 12.5px;
  line-height: 1.55;
  color: var(--c-muted);
}

.page-contact .ct-facts {
  margin: 16px 0 0;
  padding: 0;
}

.page-contact .ct-fact {
  padding: 14px 0;
  border-top: 1px solid var(--c-line);
}

.page-contact .ct-fact__k {
  font-size: 11px;
  letter-spacing: .1em;
  color: var(--c-muted);
}

.page-contact .ct-fact__v {
  margin: 6px 0 0;
  font-size: 15px;
  line-height: 1.45;
  color: var(--c-bone);
  word-break: break-all;
  user-select: all;
}

.page-contact .ct-fact:nth-child(1) .ct-fact__v {
  color: var(--c-cyan-2);
}

.page-contact .ct-fact__n {
  margin: 8px 0 0;
  font-size: 12px;
  line-height: 1.55;
  color: var(--c-muted);
}

.page-contact .ct-side__hint {
  display: block;
  margin: 16px 0 0;
  white-space: normal;
  line-height: 1.5;
}

/* ---------- 右列通用 ---------- */
.page-contact .ct-main {
  min-width: 0;
  display: grid;
  gap: 40px;
}

.page-contact .ct-block {
  min-width: 0;
}

.page-contact .ct-p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.6;
  color: var(--c-bone);
  opacity: .86;
}

.page-contact .ct-p + .ct-p {
  margin-top: 12px;
}

/* ---------- 提交前请准备 ---------- */
.page-contact .ct-prep {
  display: grid;
  gap: 24px;
  margin-top: 20px;
}

@media (min-width: 900px) {
  .page-contact .ct-prep {
    grid-template-columns: minmax(0, 1.12fr) minmax(0, .88fr);
    gap: 32px;
    align-items: start;
  }
}

.page-contact .ct-list {
  display: grid;
  gap: 10px;
  margin: 14px 0 0;
  padding: 0;
  list-style: none;
}

.page-contact .ct-list li {
  position: relative;
  padding-left: 18px;
  font-size: 14px;
  line-height: 1.55;
  color: var(--c-bone);
  opacity: .88;
}

.page-contact .ct-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .68em;
  width: 9px;
  height: 1px;
  background: var(--c-cyan);
}

.page-contact .ct-list b {
  color: var(--c-bone);
  font-weight: 700;
}

.page-contact .ct-prep__tip {
  margin: 16px 0 0;
  padding: 10px 12px;
  border-left: 2px solid var(--c-amber);
  background: rgba(255, 176, 58, .07);
  font-size: 12.5px;
  line-height: 1.55;
  color: var(--c-bone);
  opacity: .8;
}

.page-contact .ct-figure {
  margin: 0;
  border: 1px solid var(--c-line);
  background: var(--c-panel);
}

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

.page-contact .ct-figure .frame__cap {
  display: block;
  padding: 10px 12px;
  border-top: 1px solid var(--c-line);
  font-size: 12px;
  line-height: 1.5;
  color: var(--c-muted);
}

.page-contact .ct-figure--inline {
  margin-top: 24px;
}

/* ---------- 问题分类索引 ---------- */
.page-contact .ct-issues {
  margin-top: 20px;
  border-top: 1px solid var(--c-line);
}

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

.page-contact .ct-issue__sum {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 15px 6px;
  list-style: none;
  cursor: pointer;
  transition: background var(--t-fast) linear;
}

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

.page-contact .ct-issue__sum:hover {
  background: rgba(53, 240, 200, .06);
}

.page-contact .ct-issue__sum:focus-visible {
  outline: 1px solid var(--c-cyan);
  outline-offset: -1px;
}

.page-contact .ct-issue__num {
  flex: 0 0 auto;
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--c-cyan);
}

.page-contact .ct-issue__name {
  flex: 0 1 auto;
  font-family: var(--f-head);
  font-size: 17px;
  font-weight: 700;
  letter-spacing: .02em;
  color: var(--c-bone);
}

.page-contact .ct-issue__hint {
  flex: 0 0 auto;
  margin-left: auto;
  font-size: 11.5px;
  color: var(--c-muted);
}

.page-contact .ct-issue__mark {
  position: relative;
  flex: 0 0 auto;
  width: 12px;
  height: 12px;
}

.page-contact .ct-issue__mark::before,
.page-contact .ct-issue__mark::after {
  content: "";
  position: absolute;
  background: var(--c-cyan);
  transition: transform var(--t-base) var(--ease);
}

.page-contact .ct-issue__mark::before {
  left: 0;
  right: 0;
  top: 5.5px;
  height: 1px;
}

.page-contact .ct-issue__mark::after {
  top: 0;
  bottom: 0;
  left: 5.5px;
  width: 1px;
}

.page-contact .ct-issue[open] .ct-issue__mark::after {
  transform: scaleY(0);
}

.page-contact .ct-issue[open] .ct-issue__num {
  color: var(--c-flare);
}

.page-contact .ct-issue__body {
  padding: 0 6px 20px;
  display: grid;
  gap: 12px;
  animation: ct-reveal var(--t-base) var(--ease) both;
}

@keyframes ct-reveal {
  from { opacity: 0; }
  to { opacity: 1; }
}

.page-contact .ct-issue__h {
  margin: 0;
  font-size: 12px;
  letter-spacing: .08em;
  font-weight: 700;
  color: var(--c-muted);
}

.page-contact .ct-check {
  display: grid;
  gap: 9px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-contact .ct-check li {
  position: relative;
  padding-left: 22px;
  font-size: 13.5px;
  line-height: 1.6;
  color: var(--c-bone);
  opacity: .84;
}

.page-contact .ct-check li::before {
  content: "";
  position: absolute;
  left: 4px;
  top: .5em;
  width: 6px;
  height: 6px;
  border: 1px solid var(--c-cyan);
}

.page-contact .ct-issue__foot {
  margin: 0;
  padding: 10px 12px;
  border: 1px solid var(--c-line);
  background: rgba(16, 44, 37, .7);
  font-size: 12.5px;
  line-height: 1.55;
  color: var(--c-muted);
}

.page-contact .ct-issue__foot b {
  color: var(--c-flare);
  font-weight: 700;
}

.page-contact .ct-inline-link {
  color: var(--c-cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(53, 240, 200, .42);
  transition: border-color var(--t-fast) linear, color var(--t-fast) linear;
}

.page-contact .ct-inline-link:hover {
  color: var(--c-cyan-2);
  border-bottom-color: var(--c-cyan-2);
}

/* ---------- 回复时段刻度尺 ---------- */
.page-contact .ct-clock {
  margin-top: 20px;
}

.page-contact .ct-clock__track {
  display: flex;
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--c-line);
  border-bottom: 1px solid var(--c-line);
  overflow-x: auto;
  scrollbar-width: thin;
}

.page-contact .ct-clock__tick {
  position: relative;
  flex: 1 0 34px;
  min-width: 34px;
  padding: 16px 0 8px;
  text-align: center;
}

.page-contact .ct-clock__tick::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  width: 1px;
  height: 7px;
  background: var(--c-line);
}

.page-contact .ct-clock__tick span {
  font-size: 10px;
  color: var(--c-muted);
}

.page-contact .ct-clock__tick:nth-child(n+10):nth-child(-n+19) {
  background: rgba(53, 240, 200, .09);
}

.page-contact .ct-clock__tick:nth-child(n+10):nth-child(-n+19)::before {
  height: 100%;
  background: var(--c-cyan);
  opacity: .5;
}

.page-contact .ct-clock__tick:nth-child(n+10):nth-child(-n+19) span {
  color: var(--c-cyan);
  font-weight: 700;
}

.page-contact .ct-clock__tick:nth-child(19) {
  background: rgba(255, 176, 58, .12);
}

.page-contact .ct-clock__tick:nth-child(19) span {
  color: var(--c-amber);
}

.page-contact .ct-clock__legend {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 18px;
  margin-top: 12px;
}

.page-contact .ct-clock__key {
  position: relative;
  padding-left: 14px;
  font-size: 11.5px;
  color: var(--c-muted);
}

.page-contact .ct-clock__key::before {
  content: "";
  position: absolute;
  left: 0;
  top: .55em;
  width: 8px;
  height: 2px;
  background: var(--c-line);
}

.page-contact .ct-clock__key--on {
  color: var(--c-cyan);
}

.page-contact .ct-clock__key--on::before {
  background: var(--c-cyan);
}

/* ---------- 处理范围 ---------- */
.page-contact .ct-scope {
  display: grid;
  gap: 1px;
  margin-top: 24px;
  background: var(--c-line);
  border: 1px solid var(--c-line);
}

@media (min-width: 768px) {
  .page-contact .ct-scope {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

.page-contact .ct-scope__card {
  background: var(--c-panel);
  padding: 16px 16px 18px;
}

.page-contact .ct-scope__card--warn {
  background: rgba(255, 90, 54, .08);
}

.page-contact .ct-scope__h {
  margin: 0;
  font-family: var(--f-head);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: .04em;
  color: var(--c-bone);
}

.page-contact .ct-scope__card--warn .ct-scope__h {
  color: var(--c-flare);
}

.page-contact .ct-scope__card p {
  margin: 10px 0 0;
  font-size: 13px;
  line-height: 1.6;
  color: var(--c-muted);
}

/* ---------- 数据与隐私提示 ---------- */
.page-contact .ct-privacy {
  border: 1px solid var(--c-line);
  border-left: 2px solid var(--c-amber);
  background: var(--c-panel);
  padding: 18px 18px 20px;
}

.page-contact .ct-privacy__title {
  margin: 0 0 10px;
  font-family: var(--f-head);
  font-size: 16px;
  font-weight: 700;
  letter-spacing: .03em;
  color: var(--c-bone);
}

/* ---------- 备案区 ---------- */
.page-contact .ct-reg {
  margin-top: 48px;
  padding-top: 20px;
  border-top: 1px solid var(--c-line);
}

.page-contact .ct-reg__title {
  margin: 0;
  font-family: var(--f-head);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: .06em;
  color: var(--c-muted);
}

.page-contact .ct-reg__grid {
  display: grid;
  gap: 12px;
  margin-top: 14px;
}

@media (min-width: 768px) {
  .page-contact .ct-reg__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 24px;
  }
}

.page-contact .ct-reg__item {
  display: flex;
  flex-direction: column;
  gap: 5px;
}

.page-contact .ct-reg__k {
  font-size: 10.5px;
  letter-spacing: .1em;
  color: var(--c-muted);
}

.page-contact .ct-reg__v {
  font-size: 12.5px;
  line-height: 1.5;
  color: var(--c-bone);
  opacity: .78;
  word-break: break-all;
}

.page-contact .ct-reg__note {
  margin: 16px 0 0;
  max-width: 74ch;
  font-size: 11.5px;
  line-height: 1.6;
  color: var(--c-muted);
}

/* ---------- 窄屏收敛 ---------- */
@media (max-width: 520px) {
  .page-contact .ct-issue__hint {
    display: none;
  }

  .page-contact .ct-issue__name {
    font-size: 15.5px;
  }

  .page-contact .ct-head__lede {
    font-size: 14px;
  }

  .page-contact .ct-layout {
    margin-top: 24px;
  }

  .page-contact .ct-main {
    gap: 34px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .ct-issue__body {
    animation: none;
  }

  .page-contact .ct-issue__mark::before,
  .page-contact .ct-issue__mark::after,
  .page-contact .ct-issue__sum,
  .page-contact .ct-inline-link {
    transition: none;
  }
}