.page-contact {
  --ct-hair: 1px solid var(--bw-line);
  --ct-hair-soft: 1px solid var(--bw-line-soft);
}

/* ---------- 首屏 ---------- */
.page-contact .ct-hero {
  position: relative;
  isolation: isolate;
  background: var(--bw-charcoal);
  padding-block: clamp(26px, 4.5vw, 64px) clamp(34px, 5vw, 78px);
  overflow: hidden;
}

.page-contact .ct-hero__grid {
  position: absolute;
  inset: 0;
  z-index: -2;
  background-image:
    linear-gradient(var(--bw-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--bw-line) 1px, transparent 1px);
  background-size: clamp(64px, 9vw, 118px) clamp(64px, 9vw, 118px);
  opacity: .42;
  -webkit-mask-image: linear-gradient(180deg, rgba(0, 0, 0, .95), transparent 94%);
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, .95), transparent 94%);
  pointer-events: none;
}

.page-contact .ct-hero::before {
  content: "";
  position: absolute;
  top: -34%;
  right: -12%;
  width: min(560px, 62vw);
  height: 360px;
  z-index: -1;
  background: linear-gradient(118deg, rgba(200, 51, 43, .32), rgba(142, 31, 26, .06) 62%, transparent 78%);
  transform: rotate(var(--bw-slant));
  pointer-events: none;
}

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

.page-contact .ct-hero__title {
  margin: 14px 0 0;
  max-width: 17ch;
}

.page-contact .ct-hero__lede {
  margin-top: clamp(16px, 2.4vw, 26px);
  max-width: 60ch;
}

.page-contact .ct-tape {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin: clamp(28px, 4vw, 52px) 0 0;
  padding: 0;
  background: var(--bw-line);
  border: 1px solid var(--bw-line);
}

.page-contact .ct-tape__item {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 14px 16px;
  background: var(--bw-asphalt);
  color: var(--bw-text-dim);
  font-size: 14px;
  line-height: 1.5;
  letter-spacing: .01em;
  transition: color .18s var(--bw-ease), background-color .18s var(--bw-ease);
}

.page-contact .ct-tape__item:hover {
  background: #1b1e24;
  color: var(--bw-white);
}

.page-contact .ct-tape__num {
  color: var(--bw-amber);
  font-size: 12px;
  letter-spacing: .1em;
}

/* ---------- 双栏联络面板 ---------- */
.page-contact .ct-desk {
  background: var(--bw-charcoal);
}

.page-contact .ct-desk__grid {
  display: grid;
  gap: clamp(28px, 4vw, 46px);
}

.page-contact .ct-desk__left > .bw-h2 {
  margin: 0;
}

.page-contact .ct-lead {
  margin: clamp(12px, 1.8vw, 18px) 0 0;
  color: var(--bw-text-dim);
  max-width: 56ch;
}

.page-contact .ct-shot {
  margin: clamp(22px, 3vw, 34px) 0 0;
}

.page-contact .ct-shot img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  clip-path: var(--bw-cut-path);
  filter: contrast(1.06) saturate(.94);
}

.page-contact .ct-shot__cap {
  margin-top: 10px;
  font-size: 12.5px;
  line-height: 1.65;
  letter-spacing: .02em;
  color: var(--bw-text-faint);
}

.page-contact .ct-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: clamp(24px, 3vw, 36px);
}

.page-contact .ct-chips .bw-chip {
  transition: transform .18s var(--bw-ease), border-color .18s var(--bw-ease), background-color .18s var(--bw-ease);
}

.page-contact .ct-chips .bw-chip:hover {
  transform: translate(-1px, -1px);
  border-color: var(--bw-line-strong);
}

.page-contact .ct-chips .bw-chip.is-active,
.page-contact .ct-chips .bw-chip[aria-pressed="true"] {
  background: var(--bw-red);
  border-color: var(--bw-red);
  color: var(--bw-white);
}

.page-contact .ct-guide {
  margin-top: clamp(26px, 3.2vw, 38px);
  padding-top: clamp(20px, 2.8vw, 28px);
  border-top: var(--ct-hair);
}

.page-contact .ct-guide .bw-h4 {
  margin: 0;
  color: var(--bw-white);
}

.page-contact .ct-guide__list {
  list-style: none;
  display: grid;
  gap: 18px;
  margin: 18px 0 0;
  padding: 0;
  counter-reset: none;
}

.page-contact .ct-guide__item {
  display: grid;
  grid-template-columns: 32px minmax(0, 1fr);
  gap: 14px;
  align-items: start;
}

.page-contact .ct-guide__idx {
  padding-top: 3px;
  color: var(--bw-red);
  font-size: 13px;
  letter-spacing: .1em;
}

.page-contact .ct-guide__item strong {
  display: block;
  color: var(--bw-white);
  font-size: 15px;
  font-weight: 600;
  letter-spacing: .01em;
}

.page-contact .ct-guide__item p {
  margin: 6px 0 0;
  color: var(--bw-text-dim);
  font-size: 14.5px;
  line-height: 1.75;
  max-width: 54ch;
}

/* 右栏信息卡 */
.page-contact .ct-desk__right {
  align-self: start;
}

.page-contact .ct-card {
  background: var(--bw-concrete);
  color: var(--bw-ink);
  padding: clamp(20px, 3vw, 30px);
  clip-path: var(--bw-cut-path);
}

.page-contact .ct-card .bw-label {
  color: var(--bw-red-dark);
  display: block;
}

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

.page-contact .ct-card__map img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  filter: contrast(1.08) grayscale(.1);
  clip-path: polygon(0 0, calc(100% - 10px) 0, 100% 10px, 100% 100%, 0 100%);
}

.page-contact .ct-card__list {
  margin: 20px 0 0;
  padding: 0;
  border-top: 1px solid rgba(27, 29, 33, .2);
}

.page-contact .ct-card__row {
  display: grid;
  gap: 5px;
  padding: 13px 0;
  border-bottom: 1px solid rgba(27, 29, 33, .14);
}

.page-contact .ct-card__row dt {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: .14em;
  color: rgba(27, 29, 33, .58);
}

.page-contact .ct-card__row dd {
  margin: 0;
  color: var(--bw-ink);
  font-size: 14.5px;
  line-height: 1.62;
  overflow-wrap: anywhere;
}

.page-contact .ct-card__mail {
  font-size: 13.5px;
  letter-spacing: .01em;
}

.page-contact .ct-card__actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  margin-top: 18px;
}

.page-contact .ct-card .bw-btn {
  background: transparent;
  border: 1px solid rgba(27, 29, 33, .42);
  color: var(--bw-ink);
  transition: border-color .18s var(--bw-ease), color .18s var(--bw-ease), transform .18s var(--bw-ease);
}

.page-contact .ct-card .bw-btn:hover {
  border-color: var(--bw-red);
  color: var(--bw-red-dark);
  transform: translate(-1px, -1px);
}

.page-contact .ct-card .bw-copy__hint {
  font-size: 12.5px;
  letter-spacing: .02em;
  color: var(--bw-green);
}

/* ---------- 四条通道 ---------- */
.page-contact .ct-lanes {
  background: var(--bw-asphalt);
}

.page-contact .ct-lanes__head {
  max-width: 60ch;
}

.page-contact .ct-lanes__head .bw-h2 {
  margin: 10px 0 0;
}

.page-contact .ct-lanes__grid {
  display: grid;
  gap: 1px;
  margin-top: clamp(28px, 4vw, 48px);
  background: var(--bw-line-soft);
  border: 1px solid var(--bw-line-soft);
}

.page-contact .ct-lane {
  display: grid;
  align-content: start;
  gap: 10px;
  padding: clamp(22px, 3vw, 34px);
  background: var(--bw-asphalt);
  transition: background-color .2s var(--bw-ease);
}

.page-contact .ct-lane:hover {
  background: #1c1f25;
}

.page-contact .ct-lane .bw-h3 {
  margin: 0;
}

.page-contact .ct-lane__no {
  color: var(--bw-red);
  font-size: 13px;
  letter-spacing: .14em;
}

.page-contact .ct-lane p {
  margin: 0;
  color: var(--bw-text-dim);
  font-size: 14.5px;
  line-height: 1.76;
  max-width: 48ch;
}

.page-contact .ct-lane p.ct-lane__meta {
  margin-top: 4px;
  padding-top: 12px;
  border-top: var(--ct-hair-soft);
  color: var(--bw-text-faint);
  font-size: 12.5px;
  line-height: 1.65;
  letter-spacing: .02em;
}

.page-contact .ct-lane a {
  color: var(--bw-amber);
  text-decoration: none;
  border-bottom: 1px solid rgba(242, 178, 51, .45);
  transition: border-color .18s var(--bw-ease);
}

.page-contact .ct-lane a:hover {
  border-color: var(--bw-amber);
}

/* ---------- 回复节奏 ---------- */
.page-contact .ct-rhythm {
  background: var(--bw-charcoal);
}

.page-contact .ct-rhythm .bw-h2 {
  margin: 0;
}

.page-contact .ct-rhythm__lede {
  margin-top: clamp(12px, 1.8vw, 20px);
  max-width: 58ch;
}

.page-contact .ct-rhythm__list {
  list-style: none;
  margin: clamp(26px, 4vw, 46px) 0 0;
  padding: 0;
  border-top: var(--ct-hair);
}

.page-contact .ct-rhythm__item {
  display: grid;
  gap: 10px;
  padding: clamp(18px, 2.6vw, 26px) 0;
  border-bottom: var(--ct-hair);
}

.page-contact .ct-rhythm__item .bw-h4 {
  margin: 0;
  color: var(--bw-white);
}

.page-contact .ct-rhythm__time {
  font-family: var(--bw-mono);
  font-variant-numeric: tabular-nums;
  color: var(--bw-amber);
  font-size: 15px;
  letter-spacing: .02em;
}

.page-contact .ct-rhythm__body p {
  margin: 8px 0 0;
  color: var(--bw-text-dim);
  font-size: 14.5px;
  line-height: 1.75;
  max-width: 62ch;
}

.page-contact .ct-footnote {
  margin: clamp(24px, 3.4vw, 38px) 0 0;
  padding-left: 14px;
  border-left: 2px solid var(--bw-red);
  color: var(--bw-text-faint);
  font-size: 13px;
  line-height: 1.85;
  max-width: 76ch;
}

.page-contact .ct-footnote a {
  color: var(--bw-white);
  text-decoration: none;
  border-bottom: 1px solid var(--bw-line-strong);
  transition: border-color .18s var(--bw-ease), color .18s var(--bw-ease);
}

.page-contact .ct-footnote a:hover {
  color: var(--bw-amber);
  border-color: var(--bw-amber);
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-contact .ct-tape {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-contact .ct-rhythm__item {
    grid-template-columns: 168px minmax(0, 1fr);
    align-items: baseline;
  }
}

@media (min-width: 960px) {
  .page-contact .ct-desk__grid {
    grid-template-columns: minmax(0, 1.42fr) minmax(300px, .58fr);
    gap: 0;
  }

  .page-contact .ct-desk__left {
    padding-right: clamp(28px, 4vw, 56px);
    border-right: var(--ct-hair);
  }

  .page-contact .ct-desk__right {
    padding-left: clamp(28px, 4vw, 56px);
  }

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

  .page-contact .ct-shot {
    max-width: 620px;
  }
}

@media (min-width: 1180px) {
  .page-contact .ct-lanes__grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-contact .ct-lane:first-child {
    grid-column: span 2;
  }
}