.page-contact {
  --ct-panel: rgba(16, 29, 51, 0.68);
  --ct-panel-solid: #101D33;
  --ct-hair: rgba(47, 224, 208, 0.16);
  position: relative;
  overflow-x: clip;
  color: var(--paper);
  background:
    radial-gradient(88% 52% at 88% -6%, rgba(47, 224, 208, 0.10), transparent 62%),
    radial-gradient(66% 44% at -6% 34%, rgba(245, 184, 74, 0.055), transparent 60%),
    var(--navy-900);
}

.page-contact a:focus-visible,
.page-contact summary:focus-visible,
.page-contact input:focus-visible {
  outline: 2px solid var(--aqua);
  outline-offset: 3px;
}

/* ---------- 首屏：联络室记录 ---------- */
.page-contact .ct-hero {
  position: relative;
  overflow: hidden;
  padding-bottom: 8px;
}

.page-contact .ct-hero__bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.24;
}

.page-contact .ct-hero__veil {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(120% 90% at 10% 0%, rgba(47, 224, 208, 0.14), transparent 58%),
    linear-gradient(180deg, rgba(10, 20, 36, 0.72) 0%, rgba(10, 20, 36, 0.94) 60%, var(--navy-900) 100%);
}

.page-contact .ct-hero__grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(47, 224, 208, 0.07) 1px, transparent 1px),
    linear-gradient(90deg, rgba(47, 224, 208, 0.07) 1px, transparent 1px);
  background-size: 38px 38px;
  -webkit-mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.85), transparent 80%);
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.85), transparent 80%);
}

.page-contact .ct-hero__inner {
  position: relative;
  padding: clamp(28px, 6vw, 56px) 0 clamp(40px, 8vw, 92px);
}

.page-contact .breadcrumb {
  margin-bottom: clamp(24px, 5vw, 44px);
}

.page-contact .ct-hero__cols {
  display: grid;
  gap: clamp(28px, 5vw, 52px);
}

.page-contact .ct-hero__eyebrow {
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--aqua);
  margin: 0 0 14px;
}

.page-contact .ct-hero__title {
  font-family: var(--font-display);
  font-size: clamp(30px, 7.6vw, 60px);
  line-height: 1.08;
  letter-spacing: 0.04em;
  font-weight: 600;
  margin: 0 0 18px;
  color: var(--paper);
}

.page-contact .ct-hero__lead {
  max-width: 40ch;
  margin: 0;
  font-size: clamp(15px, 2.4vw, 17px);
  line-height: 1.85;
  color: var(--mist);
}

.page-contact .ct-jump {
  list-style: none;
  margin: clamp(24px, 5vw, 38px) 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 10px 12px;
}

.page-contact .ct-jump__link {
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
  padding: 9px 14px;
  border: 1px solid var(--line);
  background: rgba(16, 29, 51, 0.55);
  color: var(--paper);
  text-decoration: none;
  font-size: 13.5px;
  letter-spacing: 0.03em;
  transition: border-color 0.35s var(--ease), color 0.35s var(--ease), background 0.35s var(--ease);
}

.page-contact .ct-jump__link:hover {
  border-color: var(--aqua);
  color: var(--aqua);
  background: rgba(47, 224, 208, 0.08);
}

.page-contact .ct-jump__no {
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--amber);
}

.page-contact .ct-board {
  border: 1px solid var(--line);
  background: var(--ct-panel);
  backdrop-filter: blur(3px);
  padding: clamp(18px, 4vw, 26px);
}

.page-contact .ct-board__head {
  margin: 0 0 16px;
  font-size: 11px;
  letter-spacing: 0.22em;
  color: var(--mist);
}

.page-contact .ct-board__list {
  margin: 0;
  padding: 0;
}

.page-contact .ct-board__row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
  padding: 11px 0;
  border-top: 1px solid var(--line);
}

.page-contact .ct-board__key {
  margin: 0;
  font-size: 13px;
  color: var(--mist);
}

.page-contact .ct-board__val {
  margin: 0;
  font-size: clamp(14px, 2.4vw, 16px);
  color: var(--amber);
  letter-spacing: 0.04em;
  text-align: right;
}

.page-contact .ct-board__foot {
  margin: 16px 0 0;
  padding-top: 12px;
  border-top: 1px solid var(--line);
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--mist);
}

/* ---------- 通用分区 ---------- */
.page-contact .ct-section {
  padding: clamp(48px, 8vw, 90px) 0;
  border-top: 1px solid var(--line);
}

.page-contact .ct-section--alt {
  background: linear-gradient(180deg, rgba(16, 29, 51, 0.55), rgba(10, 20, 36, 0));
}

.page-contact .section__note {
  max-width: 64ch;
}

/* ---------- 01 联络通道 ---------- */
.page-contact .ct-channels {
  display: grid;
  gap: 1px;
  margin-top: clamp(24px, 4vw, 36px);
  border: 1px solid var(--line);
  background: var(--line);
}

.page-contact .ct-channel {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: clamp(20px, 3.4vw, 28px);
  background: var(--navy-800);
  transition: background 0.4s var(--ease), box-shadow 0.4s var(--ease);
}

.page-contact .ct-channel:hover {
  background: var(--navy-700);
  box-shadow: inset 3px 0 0 var(--aqua);
}

.page-contact .ct-channel__tag {
  align-self: flex-start;
  padding: 3px 8px;
  border: 1px solid var(--line);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--mist);
}

.page-contact .ct-channel__title {
  margin: 0;
  font-size: 16px;
  font-weight: 500;
  letter-spacing: 0.04em;
  color: var(--paper);
}

.page-contact .ct-channel__value {
  margin: 0;
  font-size: clamp(15px, 2.6vw, 18px);
  line-height: 1.5;
  letter-spacing: 0.02em;
  color: var(--amber);
  overflow-wrap: anywhere;
}

.page-contact .ct-channel__desc {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--mist);
}

.page-contact .ct-footnote {
  margin: clamp(20px, 3vw, 28px) 0 0;
  padding-left: 16px;
  border-left: 2px solid var(--aqua-deep);
  font-size: 13.5px;
  line-height: 1.8;
  color: var(--mist);
}

/* ---------- 02 核对清单 ---------- */
.page-contact .ct-split {
  display: grid;
  gap: clamp(28px, 5vw, 56px);
}

.page-contact .ct-checklist {
  list-style: none;
  margin: clamp(22px, 4vw, 34px) 0 0;
  padding: 0;
  border-top: 1px solid var(--line);
}

.page-contact .ct-checklist__item {
  display: flex;
  gap: 14px;
  padding: 16px 2px;
  border-bottom: 1px solid var(--line);
}

.page-contact .ct-checklist__box {
  appearance: none;
  -webkit-appearance: none;
  flex: 0 0 18px;
  width: 18px;
  height: 18px;
  margin: 4px 0 0;
  border: 1px solid var(--aqua-deep);
  border-radius: 2px;
  background: rgba(47, 224, 208, 0.05);
  cursor: pointer;
  position: relative;
  transition: background 0.3s var(--ease), border-color 0.3s var(--ease);
}

.page-contact .ct-checklist__box:checked {
  background: rgba(47, 224, 208, 0.18);
  border-color: var(--aqua);
}

.page-contact .ct-checklist__box:checked::after {
  content: "";
  position: absolute;
  left: 5px;
  top: 1px;
  width: 5px;
  height: 10px;
  border: solid var(--aqua);
  border-width: 0 2px 2px 0;
  transform: rotate(42deg);
}

.page-contact .ct-checklist__label {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 3px 12px;
  cursor: pointer;
}

.page-contact .ct-checklist__no {
  grid-row: 1 / span 2;
  padding-top: 4px;
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--amber);
}

.page-contact .ct-checklist__title {
  font-size: 15.5px;
  color: var(--paper);
  transition: color 0.3s var(--ease);
}

.page-contact .ct-checklist__desc {
  grid-column: 2;
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--mist);
}

.page-contact .ct-checklist__box:checked + .ct-checklist__label .ct-checklist__title {
  color: var(--aqua);
}

.page-contact .ct-split__media {
  align-self: start;
  margin: 0;
}

.page-contact .media img {
  display: block;
  width: 100%;
  height: auto;
}

/* ---------- 03 回复节奏 ---------- */
.page-contact .ct-stats {
  display: grid;
  gap: 1px;
  margin-top: clamp(24px, 4vw, 36px);
  border: 1px solid var(--line);
  background: var(--line);
}

.page-contact .ct-stat {
  padding: clamp(18px, 3vw, 26px);
  background: var(--navy-800);
  border-left: 2px solid var(--aqua-deep);
}

.page-contact .ct-stat--amber {
  border-left-color: var(--amber);
}

.page-contact .ct-stat--rose {
  border-left-color: var(--rose);
}

.page-contact .ct-stat__value {
  margin: 0 0 8px;
  font-size: clamp(24px, 5.4vw, 40px);
  line-height: 1;
  letter-spacing: 0.02em;
  color: var(--paper);
}

.page-contact .ct-stat--amber .ct-stat__value {
  color: var(--amber);
}

.page-contact .ct-stat--rose .ct-stat__value {
  color: var(--rose);
}

.page-contact .ct-stat__label {
  margin: 0;
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--mist);
}

.page-contact .ct-flow {
  list-style: none;
  margin: clamp(22px, 4vw, 32px) 0 0;
  padding: 0;
  display: grid;
  gap: 1px;
  border: 1px solid var(--line);
  background: var(--line);
}

.page-contact .ct-flow__item {
  padding: clamp(16px, 3vw, 22px);
  background: var(--navy-800);
}

.page-contact .ct-flow__no {
  display: block;
  margin-bottom: 8px;
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--aqua);
}

.page-contact .ct-flow__text {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--mist);
}

/* ---------- 04 咨询分类 ---------- */
.page-contact .ct-ask {
  margin-top: clamp(22px, 4vw, 32px);
  border-top: 1px solid var(--line);
}

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

.page-contact .ct-ask__summary {
  display: flex;
  align-items: baseline;
  gap: 14px;
  padding: 18px 2px;
  cursor: pointer;
  list-style: none;
  font-size: clamp(15.5px, 2.6vw, 19px);
  letter-spacing: 0.03em;
  color: var(--paper);
  transition: color 0.35s var(--ease);
}

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

.page-contact .ct-ask__summary:hover {
  color: var(--aqua);
}

.page-contact .ct-ask__summary::after {
  content: "+";
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 18px;
  color: var(--aqua);
}

.page-contact .ct-ask__item[open] .ct-ask__summary::after {
  content: "–";
}

.page-contact .ct-ask__no {
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--amber);
}

.page-contact .ct-ask__body {
  padding: 0 2px 22px 38px;
  font-size: 14px;
  line-height: 1.85;
  color: var(--mist);
}

.page-contact .ct-ask__body p {
  margin: 0 0 10px;
}

.page-contact .ct-ask__link {
  font-size: 13px;
}

.page-contact .ct-ask__link a {
  color: var(--aqua);
  text-decoration: none;
  border-bottom: 1px solid rgba(47, 224, 208, 0.35);
}

.page-contact .ct-ask__link a:hover {
  border-bottom-color: var(--aqua);
}

/* ---------- 05 边界说明 ---------- */
.page-contact .ct-boundary {
  display: grid;
  gap: clamp(28px, 5vw, 52px);
}

.page-contact .ct-rules {
  list-style: none;
  margin: clamp(22px, 4vw, 32px) 0 0;
  padding: 0;
  border-top: 1px solid var(--line);
}

.page-contact .ct-rules__item {
  display: flex;
  gap: 16px;
  padding: 18px 2px;
  border-bottom: 1px solid var(--line);
}

.page-contact .ct-rules__no {
  flex: 0 0 auto;
  padding-top: 4px;
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--rose);
}

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

.page-contact .ct-rules__lead {
  margin: 0;
  font-size: 15.5px;
  letter-spacing: 0.03em;
  color: var(--paper);
}

.page-contact .ct-rules__text {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.8;
  color: var(--mist);
}

.page-contact .ct-aside {
  align-self: start;
  padding: clamp(18px, 3.4vw, 26px);
  border: 1px solid var(--line);
  background: var(--navy-800);
  box-shadow: 0 18px 44px rgba(2, 10, 20, 0.5);
}

.page-contact .ct-aside__label {
  margin: 0 0 12px;
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--aqua);
}

.page-contact .ct-aside__text {
  margin: 0 0 16px;
  font-size: 14px;
  line-height: 1.85;
  color: var(--paper);
}

.page-contact .ct-aside__meta {
  margin: 0;
  padding-top: 12px;
  border-top: 1px solid var(--line);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--mist);
}

.page-contact .ct-end {
  margin: clamp(30px, 5vw, 46px) 0 0;
  padding-top: 20px;
  border-top: 1px solid var(--line);
  font-size: 14px;
  line-height: 1.9;
  color: var(--mist);
}

.page-contact .ct-end a {
  color: var(--aqua);
  text-decoration: none;
  border-bottom: 1px solid rgba(47, 224, 208, 0.35);
}

.page-contact .ct-end a:hover {
  border-bottom-color: var(--aqua);
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-contact .ct-channels {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-contact .ct-stats {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-contact .ct-flow {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 960px) {
  .page-contact .ct-hero__cols {
    grid-template-columns: minmax(0, 1.32fr) minmax(0, 0.82fr);
    align-items: end;
  }

  .page-contact .ct-split {
    grid-template-columns: minmax(0, 1.12fr) minmax(0, 0.88fr);
    align-items: start;
  }

  .page-contact .ct-boundary {
    grid-template-columns: minmax(0, 1.25fr) minmax(0, 0.75fr);
    align-items: start;
  }

  .page-contact .ct-flow {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}