.page-contact {
  --ct-rail: 176px;
  --ct-pad-top: calc(var(--nav-h) + 44px);
}

/* ---------- 首屏 ---------- */
.page-contact .ct-hero {
  position: relative;
  background: var(--ink);
  color: var(--paper);
  padding: var(--ct-pad-top) 0 60px;
  overflow: hidden;
}

.page-contact .ct-hero::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 4px;
  background: var(--flag);
}

.page-contact .ct-hero .idx-breadcrumb {
  margin-bottom: 26px;
}

.page-contact .ct-hero .idx-breadcrumb__item,
.page-contact .ct-hero .idx-breadcrumb__sep {
  color: var(--leaf);
}

.page-contact .ct-hero .idx-breadcrumb__item[aria-current="page"] {
  color: var(--paper);
}

.page-contact .ct-hero .idx-breadcrumb__item:hover {
  color: var(--paper);
}

.page-contact .ct-hero .idx-eyebrow {
  color: var(--gold);
}

.page-contact .ct-hero__grid {
  display: grid;
  gap: 34px;
}

.page-contact .ct-hero__title {
  color: var(--paper);
  margin: 12px 0 0;
  max-width: 16ch;
  letter-spacing: .005em;
}

.page-contact .ct-hero__text {
  margin: 18px 0 0;
  max-width: 42ch;
  font-size: 16px;
  line-height: 1.9;
  color: rgba(247, 242, 232, .8);
}

.page-contact .ct-hero__jump {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 26px 0 0;
  padding: 0;
  list-style: none;
}

.page-contact .ct-hero__jump .idx-btn {
  border-color: rgba(143, 163, 212, .45);
  color: var(--paper);
}

.page-contact .ct-hero__jump .idx-btn:hover,
.page-contact .ct-hero__jump .idx-btn:focus-visible {
  background: rgba(143, 163, 212, .16);
  border-color: var(--leaf);
}

.page-contact .ct-hero__media {
  position: relative;
}

.page-contact .ct-hero__media img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: 6px;
  border: 1px solid rgba(143, 163, 212, .3);
  background: linear-gradient(135deg, var(--ink-deep), var(--violet));
}

@media (min-width: 900px) {
  .page-contact .ct-hero__grid {
    grid-template-columns: minmax(0, .96fr) minmax(0, 1.04fr);
    gap: 56px;
    align-items: center;
  }
}

/* ---------- 通用小节头 ---------- */
.page-contact .ct-head {
  max-width: 56ch;
  margin-bottom: 36px;
}

.page-contact .ct-head .idx-title {
  margin: 10px 0 0;
  color: var(--text);
}

.page-contact .ct-head__text {
  margin: 14px 0 0;
  font-size: 16px;
  line-height: 1.9;
  color: var(--text);
  opacity: .78;
}

.page-contact .ct-head--onink .idx-title,
.page-contact .ct-head--onink .ct-head__text {
  color: var(--paper);
}

.page-contact .ct-head--onink .ct-head__text {
  opacity: .78;
}

.page-contact .ct-head--onink .idx-eyebrow {
  color: var(--gold);
}

/* ---------- 三种渠道 ---------- */
.page-contact .ct-channels {
  background: var(--paper);
  padding: 64px 0 24px;
}

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

.page-contact .ct-chan {
  position: relative;
  display: grid;
  gap: 14px;
  padding: 32px 0 32px 22px;
  border-bottom: 1px solid var(--mist);
  scroll-margin-top: calc(var(--nav-h) + 24px);
}

.page-contact .ct-chan::before {
  content: "";
  position: absolute;
  left: 0;
  top: 34px;
  bottom: 34px;
  width: 4px;
  border-radius: 2px;
  background: var(--ct-accent, var(--ink-deep));
}

.page-contact .ct-chan--mail { --ct-accent: var(--ink-deep); }
.page-contact .ct-chan--phone { --ct-accent: var(--jade); }
.page-contact .ct-chan--post { --ct-accent: var(--red); }

.page-contact .ct-chan-list > .ct-chan:last-child {
  border-bottom: 0;
}

.page-contact .ct-chan__side {
  display: flex;
  align-items: baseline;
  gap: 14px;
}

.page-contact .ct-chan__no {
  font-family: var(--mono);
  font-size: 30px;
  line-height: 1;
  letter-spacing: .02em;
  color: var(--ct-accent, var(--ink-deep));
}

.page-contact .ct-chan__label {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: .2em;
  color: var(--text);
  opacity: .5;
}

.page-contact .ct-chan__title {
  margin: 0;
  font-size: 22px;
  letter-spacing: .01em;
  color: var(--text);
}

.page-contact .ct-chan__value-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  margin: 16px 0 14px;
}

.page-contact .ct-chan__value {
  font-family: var(--mono);
  font-size: clamp(19px, 5vw, 27px);
  line-height: 1.3;
  letter-spacing: .02em;
  color: var(--text);
  overflow-wrap: anywhere;
  min-width: 0;
}

.page-contact .ct-chan__value--addr {
  font-size: clamp(16px, 4vw, 21px);
}

.page-contact .ct-chan__value-row .idx-copy {
  flex: none;
  min-width: 6.5em;
}

.page-contact .ct-chan__body .idx-prose p {
  margin: 0;
  color: var(--text);
  opacity: .82;
}

@media (min-width: 780px) {
  .page-contact .ct-chan {
    grid-template-columns: var(--ct-rail) minmax(0, 1fr);
    gap: 36px;
    padding: 38px 0 38px 28px;
  }

  .page-contact .ct-chan::before {
    top: 40px;
    bottom: 40px;
  }

  .page-contact .ct-chan__side {
    display: block;
  }

  .page-contact .ct-chan__label {
    display: block;
    margin-top: 12px;
  }
}

/* ---------- 色带图片 ---------- */
.page-contact .ct-ribbon {
  margin: 44px 0 0;
  height: clamp(120px, 22vw, 236px);
  border-radius: 6px;
  overflow: hidden;
  background: var(--ink);
}

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

/* ---------- 四类问题 ---------- */
.page-contact .ct-asks {
  margin-top: 56px;
  background: var(--ink-deep);
  color: var(--paper);
  padding: 64px 0 68px;
}

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

.page-contact .ct-asks__item {
  position: relative;
  padding: 26px 0 26px 20px;
  border-top: 1px solid rgba(143, 163, 212, .26);
}

.page-contact .ct-asks__item:last-child {
  border-bottom: 1px solid rgba(143, 163, 212, .26);
}

.page-contact .ct-asks__no {
  display: block;
  font-family: var(--mono);
  font-size: 13px;
  letter-spacing: .18em;
  color: var(--gold);
  margin-bottom: 10px;
}

.page-contact .ct-asks__title {
  margin: 0 0 10px;
  font-size: 20px;
  color: var(--paper);
  letter-spacing: .01em;
}

.page-contact .ct-asks__item p {
  margin: 0;
  font-size: 16px;
  line-height: 1.9;
  color: rgba(247, 242, 232, .78);
}

@media (min-width: 700px) {
  .page-contact .ct-asks__list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    column-gap: 48px;
  }

  .page-contact .ct-asks__item {
    border-bottom: 1px solid rgba(143, 163, 212, .26);
  }

  .page-contact .ct-asks__item:nth-child(odd) {
    padding-left: 0;
  }
}

@media (min-width: 1080px) {
  .page-contact .ct-asks__list {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-contact .ct-asks__item {
    padding: 28px 28px 28px 0;
    border-bottom: 0;
  }

  .page-contact .ct-asks__item:nth-child(odd) {
    padding-left: 0;
  }

  .page-contact .ct-asks__item + .ct-asks__item {
    padding-left: 28px;
    border-left: 1px solid rgba(143, 163, 212, .26);
  }
}

/* ---------- 来信清单 ---------- */
.page-contact .ct-prep {
  background: var(--paper);
  padding: 64px 0 72px;
}

.page-contact .ct-need-list {
  border-top: 1px solid var(--mist);
}

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

.page-contact .ct-need__sum {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 20px 34px 20px 0;
  position: relative;
  cursor: pointer;
  list-style: none;
}

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

.page-contact .ct-need__sum:focus-visible {
  outline: 2px solid var(--jade);
  outline-offset: -2px;
}

.page-contact .ct-need__no {
  font-family: var(--mono);
  font-size: 13px;
  letter-spacing: .16em;
  color: var(--jade);
  flex: none;
}

.page-contact .ct-need__label {
  font-size: 17px;
  color: var(--text);
  letter-spacing: .01em;
}

.page-contact .ct-need__mark {
  position: absolute;
  right: 6px;
  top: 50%;
  width: 10px;
  height: 10px;
  margin-top: -8px;
  border-right: 1.5px solid var(--jade);
  border-bottom: 1.5px solid var(--jade);
  transform: rotate(45deg);
  transition: transform .2s var(--ease), margin-top .2s var(--ease);
}

.page-contact .ct-need[open] .ct-need__mark {
  transform: rotate(-135deg);
  margin-top: -2px;
}

.page-contact .ct-need__body {
  padding: 0 34px 22px 32px;
}

.page-contact .ct-need__body p {
  margin: 0;
  font-size: 16px;
  line-height: 1.9;
  color: var(--text);
  opacity: .8;
  max-width: 62ch;
}

/* ---------- 回复时效 ---------- */
.page-contact .ct-timing {
  background: var(--paper);
  padding: 0 0 72px;
}

.page-contact .ct-timing__grid {
  display: grid;
  gap: 26px;
  padding-top: 40px;
  border-top: 1px solid var(--mist);
}

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

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

.page-contact .ct-timing__panel p {
  margin: 0 0 14px;
  font-size: 16px;
  line-height: 1.9;
  color: var(--text);
  opacity: .82;
  max-width: 54ch;
}

.page-contact .ct-timing__fact {
  font-family: var(--mono);
  display: flex;
  align-items: baseline;
  gap: 10px;
  margin: 0 0 12px;
}

.page-contact .ct-timing__num {
  font-size: clamp(34px, 8vw, 52px);
  line-height: 1;
  letter-spacing: .02em;
  color: var(--ink-deep);
}

.page-contact .ct-timing__unit {
  font-family: var(--sans);
  font-size: 15px;
  letter-spacing: .04em;
  color: var(--text);
  opacity: .62;
}

@media (min-width: 900px) {
  .page-contact .ct-timing__grid {
    grid-template-columns: minmax(0, .8fr) minmax(0, 1.2fr);
    gap: 56px;
    padding-top: 48px;
  }
}

/* ---------- 收尾 ---------- */
.page-contact .ct-close {
  background: var(--ink);
  color: var(--paper);
  padding: 56px 0 64px;
}

.page-contact .ct-close__inner {
  display: grid;
  gap: 24px;
}

.page-contact .ct-close__line {
  margin: 0;
  max-width: 46ch;
  font-size: 17px;
  line-height: 1.9;
  color: rgba(247, 242, 232, .86);
}

.page-contact .ct-close__links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 30px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-contact .ct-close__links a {
  display: inline-block;
  padding-bottom: 3px;
  font-size: 15px;
  color: var(--leaf);
  text-decoration: none;
  border-bottom: 1px solid rgba(143, 163, 212, .38);
  transition: color .18s var(--ease), border-color .18s var(--ease);
}

.page-contact .ct-close__links a:hover,
.page-contact .ct-close__links a:focus-visible {
  color: var(--paper);
  border-color: var(--gold);
}

@media (min-width: 900px) {
  .page-contact .ct-close__inner {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    align-items: start;
    gap: 48px;
  }

  .page-contact .ct-close__links {
    flex-direction: column;
    gap: 14px;
  }
}

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