.page-contact {
  --ct-ink: #0B1F1A;
  --ct-paper-text: #46564F;
  --ct-num: rgba(200, 255, 61, .22);
  --ct-copy-line: rgba(11, 31, 26, .38);
  display: block;
}

.page-contact .ct-section,
.page-contact .ct-card,
.page-contact .ct-collab__col {
  scroll-margin-top: 96px;
}

/* ---------- 首屏 ---------- */
.page-contact .ct-hero {
  position: relative;
  padding: clamp(24px, 3.5vw, 44px) 0 clamp(36px, 5vw, 72px);
  border-bottom: 1px solid var(--grid);
  overflow: hidden;
}

.page-contact .ct-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 0;
  background-image:
    linear-gradient(90deg, var(--grid-soft) 1px, transparent 1px),
    linear-gradient(180deg, var(--grid-soft) 1px, transparent 1px);
  background-size: 64px 64px;
  -webkit-mask-image: linear-gradient(180deg, #000 0%, transparent 92%);
  mask-image: linear-gradient(180deg, #000 0%, transparent 92%);
  pointer-events: none;
}

.page-contact .ct-hero__wrap {
  position: relative;
  z-index: 1;
}

.page-contact .ct-hero__crumb {
  margin-bottom: clamp(20px, 3vw, 34px);
}

.page-contact .ct-hero__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
}

.page-contact .ct-hero__lead h1 {
  margin: 12px 0 18px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(32px, 6.4vw, 60px);
  line-height: 1.06;
  letter-spacing: -.01em;
  color: var(--text);
}

.page-contact .ct-hero__lead .ld-prose--lead {
  max-width: 62ch;
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.85;
  color: var(--muted);
}

.page-contact .ct-hero__links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

.page-contact .ct-hero__board {
  border: 1px solid var(--grid);
  background: var(--panel);
  padding: 6px 22px;
}

.page-contact .ct-hero__board dl {
  margin: 0;
}

.page-contact .ct-hero__board dl > div {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 18px;
  padding: 14px 0;
  border-bottom: 1px solid var(--grid);
}

.page-contact .ct-hero__board dl > div:last-child {
  border-bottom: 0;
}

.page-contact .ct-hero__board dt {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--muted);
  white-space: nowrap;
}

.page-contact .ct-hero__board dd {
  margin: 0;
  font-size: 14px;
  line-height: 1.5;
  color: var(--text);
  text-align: right;
  font-variant-numeric: tabular-nums;
}

.page-contact .ct-hero__board dl > div:nth-child(3) dd {
  color: var(--lime);
}

/* ---------- 章节通用 ---------- */
.page-contact .ct-section {
  padding-top: clamp(48px, 7vw, 88px);
}

.page-contact .ct-section__head {
  margin-bottom: clamp(24px, 3vw, 36px);
}

.page-contact .ct-section__num {
  display: block;
  margin-bottom: 6px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(52px, 8.5vw, 96px);
  line-height: .82;
  letter-spacing: -.02em;
  color: var(--ct-num);
  font-variant-numeric: tabular-nums;
}

.page-contact h2 {
  margin: 0 0 12px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(24px, 3.4vw, 38px);
  line-height: 1.14;
  letter-spacing: .005em;
  color: var(--text);
}

.page-contact .ct-section__head > p,
.page-contact .ct-hours__text > p,
.page-contact .ct-apple__lead > p,
.page-contact .ct-collab__col > p,
.page-contact .ct-visit__text > p {
  margin: 0;
  max-width: 62ch;
  font-size: 15.5px;
  line-height: 1.78;
  color: var(--muted);
}

/* ---------- 三条通道 ---------- */
.page-contact .ct-channels {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--grid);
  border: 1px solid var(--grid);
}

.page-contact .ct-card {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: clamp(20px, 2.4vw, 30px);
  background: var(--panel);
  transition: background-color 160ms ease;
}

.page-contact .ct-card__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(19px, 2vw, 23px);
  letter-spacing: .01em;
  color: var(--text);
}

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

.page-contact .ct-card__value {
  margin: 4px 0 0;
  font-family: var(--font-mono);
  font-size: clamp(15px, 1.7vw, 19px);
  letter-spacing: -.01em;
  color: var(--lime);
  word-break: break-all;
  font-variant-numeric: tabular-nums;
}

.page-contact .ct-card__copy {
  margin-top: auto;
  align-self: flex-start;
}

.page-contact .ct-card__jump {
  margin-top: auto;
  align-self: flex-start;
  padding-bottom: 2px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .08em;
  color: var(--orange);
  text-decoration: none;
  border-bottom: 1px solid var(--orange-line);
  transition: color 160ms ease;
}

.page-contact .ct-card__jump:hover,
.page-contact .ct-card__jump:focus-visible {
  color: var(--lime);
  border-bottom-color: var(--lime);
}

/* 邮箱卡片：暖纸反转 */
.page-contact .ct-card--mail {
  background: var(--paper);
}

.page-contact .ct-card--mail .ct-card__title {
  color: var(--ct-ink);
}

.page-contact .ct-card--mail .ct-card__desc {
  color: var(--ct-paper-text);
}

.page-contact .ct-card--mail .ct-card__value--mail {
  color: var(--ct-ink);
  font-weight: 700;
}

.page-contact .ct-card--mail .ld-copy {
  border-color: var(--ct-copy-line);
  color: var(--ct-ink);
}

.page-contact .ct-card--mail .ld-copy:hover,
.page-contact .ct-card--mail .ld-copy:focus-visible {
  background: var(--lime);
  border-color: var(--lime);
  color: var(--ct-ink);
}

/* ---------- 服务时间 ---------- */
.page-contact .ct-hours {
  display: grid;
  grid-template-columns: 1fr;
  gap: 36px;
}

.page-contact .ct-hours__list {
  list-style: none;
  margin: 26px 0 0;
  padding: 0;
  border-top: 1px solid var(--grid);
}

.page-contact .ct-hours__list li {
  padding: 18px 0;
  border-bottom: 1px solid var(--grid);
}

.page-contact .ct-hours__k {
  display: block;
  margin-bottom: 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .16em;
  color: var(--lime);
}

.page-contact .ct-hours__list p {
  margin: 0;
  font-size: 15px;
  line-height: 1.78;
  color: var(--muted);
}

.page-contact .ct-hours__figure {
  align-self: start;
}

.page-contact .ct-hours__figure img {
  display: block;
  width: 100%;
  height: auto;
  border: 1px solid var(--grid);
}

.page-contact .ct-timeline {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-top: 18px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--muted);
  font-variant-numeric: tabular-nums;
}

.page-contact .ct-timeline__track {
  position: relative;
  flex: 1 1 auto;
  height: 1px;
  background: var(--grid);
}

.page-contact .ct-timeline__fill {
  position: absolute;
  inset: 0 auto 0 0;
  width: 100%;
  height: 1px;
  background: var(--lime);
  box-shadow: 0 0 8px rgba(200, 255, 61, .45);
}

.page-contact .ct-timeline__track::before,
.page-contact .ct-timeline__track::after {
  content: "";
  position: absolute;
  top: -4px;
  width: 1px;
  height: 9px;
  background: var(--lime);
}

.page-contact .ct-timeline__track::before {
  left: 0;
}

.page-contact .ct-timeline__track::after {
  right: 0;
}

/* ---------- 苹果端支持 ---------- */
.page-contact .ct-apple {
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
  padding: clamp(22px, 3vw, 40px);
  border: 1px solid var(--grid);
  background: var(--panel);
}

.page-contact .ct-apple__lead .ld-btn {
  margin-top: 22px;
}

.page-contact .ct-apple__list {
  counter-reset: ct-apple;
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--grid);
  border: 1px solid var(--grid);
}

.page-contact .ct-apple__list li {
  counter-increment: ct-apple;
  display: grid;
  grid-template-columns: auto 1fr;
  column-gap: 14px;
  padding: 16px 18px;
  background: var(--ink);
}

.page-contact .ct-apple__list li::before {
  content: counter(ct-apple, decimal-leading-zero);
  grid-column: 1;
  grid-row: 1 / span 2;
  padding-top: 3px;
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--lime);
  font-variant-numeric: tabular-nums;
}

.page-contact .ct-apple__list li b {
  grid-column: 2;
  margin-bottom: 6px;
  font-size: 15px;
  font-weight: 700;
  color: var(--text);
}

.page-contact .ct-apple__list li span {
  grid-column: 2;
  font-size: 14.5px;
  line-height: 1.72;
  color: var(--muted);
}

/* ---------- 合作双栏 ---------- */
.page-contact .ct-collab {
  display: grid;
  grid-template-columns: 1fr;
  gap: 40px;
  padding-top: clamp(32px, 4vw, 52px);
  border-top: 1px solid var(--grid);
}

.page-contact .ct-collab__col h2 {
  margin-bottom: 12px;
}

.page-contact .ct-list {
  list-style: none;
  margin: 22px 0 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-contact .ct-list li {
  position: relative;
  padding-left: 20px;
  font-size: 15px;
  line-height: 1.76;
  color: var(--muted);
}

.page-contact .ct-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .72em;
  width: 9px;
  height: 1px;
  background: var(--lime);
}

/* ---------- 到访与邮寄 ---------- */
.page-contact .ct-visit {
  display: grid;
  grid-template-columns: 1fr;
  gap: 36px;
}

.page-contact .ct-visit__dl {
  margin: 26px 0 24px;
  border-top: 1px solid var(--grid);
}

.page-contact .ct-visit__dl > div {
  display: grid;
  grid-template-columns: 92px minmax(0, 1fr);
  gap: 16px;
  padding: 14px 0;
  border-bottom: 1px solid var(--grid);
}

.page-contact .ct-visit__dl dt {
  padding-top: 4px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--lime);
}

.page-contact .ct-visit__dl dd {
  margin: 0;
  font-size: 15.5px;
  line-height: 1.72;
  color: var(--text);
}

.page-contact .ct-visit__links {
  margin: 22px 0 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--muted);
}

.page-contact .ct-visit__links a {
  color: var(--lime-soft);
  text-underline-offset: 3px;
}

.page-contact .ct-visit__links a:hover,
.page-contact .ct-visit__links a:focus-visible {
  color: var(--lime);
}

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

.page-contact .ct-visit__map img {
  display: block;
  width: 100%;
  height: auto;
  border: 1px solid var(--grid);
}

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

  .page-contact .ct-card--mail {
    grid-column: 1 / -1;
  }
}

@media (min-width: 900px) {
  .page-contact .ct-hero__grid {
    grid-template-columns: minmax(0, 1.6fr) minmax(280px, .8fr);
    gap: 56px;
    align-items: end;
  }

  .page-contact .ct-hours {
    grid-template-columns: minmax(0, 1.25fr) minmax(0, 1fr);
    gap: 56px;
    align-items: start;
  }

  .page-contact .ct-apple {
    grid-template-columns: minmax(0, .9fr) minmax(0, 1.1fr);
    gap: 40px;
    align-items: start;
  }

  .page-contact .ct-collab {
    grid-template-columns: 1fr 1fr;
    column-gap: 0;
  }

  .page-contact .ct-collab__col {
    padding-inline: 48px;
  }

  .page-contact .ct-collab__col:first-child {
    padding-left: 0;
  }

  .page-contact .ct-collab__col:last-child {
    padding-right: 0;
    border-left: 1px solid var(--grid);
  }

  .page-contact .ct-visit {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr);
    gap: 56px;
    align-items: start;
  }
}

@media (min-width: 860px) {
  .page-contact .ct-channels {
    grid-template-columns: 5fr 3fr 4fr;
  }

  .page-contact .ct-card--mail {
    grid-column: auto;
  }
}

@media (max-width: 480px) {
  .page-contact .ct-visit__dl > div {
    grid-template-columns: 1fr;
    gap: 6px;
  }

  .page-contact .ct-apple__list li {
    grid-template-columns: 1fr;
  }

  .page-contact .ct-apple__list li::before {
    grid-row: auto;
    margin-bottom: 2px;
  }

  .page-contact .ct-apple__list li b,
  .page-contact .ct-apple__list li span {
    grid-column: 1;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .ct-card,
  .page-contact .ct-card__jump,
  .page-contact .ct-card--mail .ld-copy {
    transition: none;
  }
}