.page-contact {
  --pc-block: clamp(52px, 7vw, 104px);
  --pc-gap: clamp(20px, 3vw, 40px);
  background: var(--ink);
  color: var(--paper);
  overflow-x: hidden;
}

/* ---------- 首屏 ---------- */
.page-contact .chero {
  padding-top: clamp(20px, 3vw, 40px);
  padding-bottom: var(--pc-block);
}

.page-contact .chero__grid {
  display: grid;
  gap: clamp(24px, 4vw, 44px);
  margin-top: clamp(24px, 4vw, 40px);
}

@media (min-width: 900px) {
  .page-contact .chero__grid {
    grid-template-columns: minmax(0, 7.5fr) minmax(0, 4.2fr);
    align-items: end;
  }
}

.page-contact .chero__title {
  margin: 14px 0 0;
  font-size: clamp(30px, 5.2vw, 62px);
  font-weight: 300;
  line-height: 1.14;
  letter-spacing: .02em;
  color: var(--paper);
}

.page-contact .chero__lede {
  margin: 20px 0 0;
  max-width: 32em;
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.85;
  color: rgba(246, 244, 236, .78);
}

.page-contact .chero__side {
  border: 2px solid var(--turf);
  background: var(--ink-deep);
  box-shadow: var(--shadow-brutal);
  padding: 22px 24px 24px;
}

.page-contact .chero__sidelabel {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .18em;
  color: var(--mist);
}

.page-contact .chero__sidenum {
  margin: 10px 0 0;
  font-family: var(--font-mono);
  font-size: clamp(44px, 6.4vw, 64px);
  font-weight: 600;
  line-height: 1;
  color: var(--lime);
}

.page-contact .chero__sidenum small {
  margin-left: 8px;
  font-family: var(--font-sans);
  font-size: 14px;
  font-weight: 600;
  letter-spacing: .16em;
  color: var(--lime-soft);
}

.page-contact .chero__sidenote {
  margin: 14px 0 0;
  padding-top: 12px;
  border-top: 1px solid rgba(110, 138, 124, .35);
  font-size: 13px;
  line-height: 1.7;
  color: rgba(246, 244, 236, .66);
}

.page-contact .chero__banner {
  margin-top: clamp(32px, 5vw, 60px);
}

.page-contact .chero__banner .frame__cap {
  margin-top: 12px;
  font-size: 13px;
  color: var(--mist);
}

/* ---------- 渠道 + 流程 ---------- */
.page-contact .cchan {
  padding-bottom: var(--pc-block);
}

.page-contact .cchan__head {
  margin: 12px 0 0;
  color: var(--paper);
}

.page-contact .cchan__grid {
  display: grid;
  gap: clamp(30px, 4vw, 56px);
  margin-top: clamp(28px, 4vw, 48px);
}

@media (min-width: 1000px) {
  .page-contact .cchan__grid {
    grid-template-columns: minmax(0, 5fr) minmax(0, 6.4fr);
    gap: clamp(40px, 5vw, 88px);
    align-items: start;
  }
}

.page-contact .cchan__label {
  margin: 0 0 18px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .2em;
  color: var(--mist);
}

.page-contact .chan {
  border: 2px solid var(--turf);
  background: var(--ink-deep);
  box-shadow: var(--shadow-brutal);
  padding: 22px 22px 24px;
  transition: border-color var(--ease), background-color var(--ease);
}

.page-contact .chan + .chan {
  margin-top: 20px;
}

.page-contact .chan:hover,
.page-contact .chan:focus-within {
  border-color: var(--lime);
  background: #0a3527;
}

.page-contact .chan__kicker {
  display: inline-block;
  margin: 0;
  padding: 3px 9px;
  background: var(--lime);
  color: var(--ink-deep);
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: .2em;
}

.page-contact .chan__title {
  margin: 14px 0 0;
  font-size: 18px;
  font-weight: 800;
  letter-spacing: -.01em;
  color: var(--paper);
}

.page-contact .chan__value {
  margin: 10px 0 0;
  font-family: var(--font-mono);
  font-size: clamp(16px, 2.1vw, 21px);
  font-weight: 600;
  line-height: 1.45;
  color: var(--lime);
  word-break: break-word;
}

.page-contact .chan__desc {
  margin: 12px 0 0;
  font-size: 15px;
  line-height: 1.75;
  color: rgba(246, 244, 236, .76);
}

.page-contact .chan__use {
  margin: 12px 0 0;
  padding-top: 11px;
  border-top: 1px dashed rgba(110, 138, 124, .4);
  font-size: 13px;
  line-height: 1.65;
  color: var(--mist);
  transition: color var(--ease);
}

.page-contact .chan:hover .chan__use,
.page-contact .chan:focus-within .chan__use {
  color: var(--lime-soft);
}

.page-contact .copy-btn {
  margin-top: 16px;
  padding: 8px 14px;
  border: 1px solid var(--turf);
  background: transparent;
  color: var(--lime);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .1em;
  cursor: pointer;
  transition: border-color var(--ease), background-color var(--ease), color var(--ease);
}

.page-contact .copy-btn:hover {
  border-color: var(--lime);
  background: rgba(198, 255, 61, .1);
}

.page-contact .copy-btn:focus-visible {
  outline: 2px solid var(--lime);
  outline-offset: 2px;
}

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

.page-contact .step {
  display: grid;
  grid-template-columns: 44px minmax(0, 1fr);
  gap: 18px;
}

.page-contact .step + .step {
  margin-top: 40px;
}

.page-contact .step__rail {
  position: relative;
  display: block;
}

.page-contact .step__no {
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  border: 2px solid var(--ink-deep);
  background: var(--lime);
  color: var(--ink-deep);
  font-family: var(--font-mono);
  font-size: 15px;
  font-weight: 600;
  letter-spacing: .04em;
}

.page-contact .step__rail::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 52px;
  bottom: -40px;
  width: 2px;
  margin-left: -1px;
  background: linear-gradient(180deg, var(--turf) 0%, rgba(20, 81, 62, 0) 100%);
}

.page-contact .step:last-child .step__rail::after {
  display: none;
}

.page-contact .step__title {
  margin: 6px 0 0;
  font-size: clamp(18px, 2.3vw, 22px);
  font-weight: 800;
  letter-spacing: -.01em;
  color: var(--paper);
}

.page-contact .step__body p {
  margin: 10px 0 0;
  font-size: 15px;
  line-height: 1.82;
  color: rgba(246, 244, 236, .74);
}

/* ---------- 清单（浅底） ---------- */
.page-contact .ccheck {
  padding-block: var(--pc-block);
  background: var(--paper);
  color: var(--carbon);
}

.page-contact .ccheck__grid {
  display: grid;
  gap: clamp(28px, 4vw, 56px);
}

@media (min-width: 900px) {
  .page-contact .ccheck__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4.4fr);
    align-items: start;
  }
}

.page-contact .ccheck .idx {
  color: var(--turf);
}

.page-contact .ccheck__title {
  margin: 12px 0 0;
  color: var(--carbon);
}

.page-contact .ccheck__lede {
  margin: 16px 0 0;
  max-width: 34em;
  font-size: 16px;
  line-height: 1.8;
  color: rgba(20, 23, 26, .72);
}

.page-contact .clist {
  list-style: none;
  margin: 30px 0 0;
  padding: 0;
  border-top: 2px solid var(--sand);
}

.page-contact .clist li {
  display: grid;
  grid-template-columns: 84px minmax(0, 1fr);
  gap: 16px;
  padding: 16px 0;
  border-bottom: 2px solid var(--sand);
  font-size: 15px;
  line-height: 1.75;
  color: rgba(20, 23, 26, .8);
}

.page-contact .clist__k {
  padding-top: 3px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--turf);
}

@media (max-width: 460px) {
  .page-contact .clist li {
    grid-template-columns: minmax(0, 1fr);
    gap: 4px;
  }
}

.page-contact .ccheck__figure .frame__cap {
  margin-top: 12px;
  font-size: 13px;
  color: rgba(20, 23, 26, .62);
}

/* ---------- 引用与合作 ---------- */
.page-contact .ccoop {
  padding-bottom: var(--pc-block);
  padding-top: var(--pc-block);
}

.page-contact .ccoop__head {
  margin: 12px 0 0;
  color: var(--paper);
}

.page-contact .ccoop__cols {
  display: grid;
  gap: 20px;
  margin-top: clamp(28px, 4vw, 48px);
}

@media (min-width: 900px) {
  .page-contact .ccoop__cols {
    grid-template-columns: repeat(12, minmax(0, 1fr));
    gap: 24px;
  }
  .page-contact .coop-card:nth-child(1) {
    grid-column: 1 / span 5;
  }
  .page-contact .coop-card:nth-child(2) {
    grid-column: 7 / span 6;
    margin-top: 44px;
  }
  .page-contact .coop-card:nth-child(3) {
    grid-column: 4 / span 8;
  }
}

.page-contact .coop-card {
  border: 2px solid var(--turf);
  border-left: 6px solid var(--lime);
  background: var(--ink-deep);
  box-shadow: var(--shadow-brutal);
  padding: 24px 26px 26px;
  transition: border-color var(--ease), box-shadow var(--ease);
}

.page-contact .coop-card:hover {
  border-top-color: var(--lime);
  border-right-color: var(--lime);
  border-bottom-color: var(--lime);
}

.page-contact .coop-card__title {
  margin: 0;
  font-size: 18px;
  font-weight: 800;
  letter-spacing: -.01em;
  color: var(--paper);
}

.page-contact .coop-card p {
  margin: 12px 0 0;
  font-size: 15px;
  line-height: 1.8;
  color: rgba(246, 244, 236, .74);
}

/* ---------- 时效 ---------- */
.page-contact .csla {
  padding-block: var(--pc-block);
  background: var(--ink-deep);
}

.page-contact .csla__head {
  margin: 12px 0 0;
  color: var(--paper);
}

.page-contact .csla__grid {
  display: grid;
  gap: 26px;
  margin-top: clamp(28px, 4vw, 48px);
}

@media (min-width: 780px) {
  .page-contact .csla__grid {
    grid-template-columns: 1.35fr 1fr 1fr;
    gap: 32px;
  }
}

.page-contact .csla__item {
  padding-top: 20px;
  border-top: 2px solid var(--turf);
}

.page-contact .csla__item--key {
  border-top-color: var(--lime);
}

.page-contact .csla__num {
  margin: 0;
  font-family: var(--font-mono);
  font-size: clamp(34px, 4.6vw, 50px);
  font-weight: 600;
  line-height: 1;
  color: var(--lime);
}

.page-contact .csla__num small {
  margin-left: 8px;
  font-family: var(--font-sans);
  font-size: 14px;
  font-weight: 600;
  letter-spacing: .16em;
  color: var(--lime-soft);
}

.page-contact .csla__tag {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .18em;
  color: var(--lime);
}

.page-contact .csla__title {
  margin: 14px 0 0;
  font-size: 17px;
  font-weight: 800;
  color: var(--paper);
}

.page-contact .csla__item p:last-child {
  margin: 10px 0 0;
  font-size: 15px;
  line-height: 1.8;
  color: rgba(246, 244, 236, .72);
}

/* ---------- 快捷问答 ---------- */
.page-contact .cfaq {
  padding-bottom: var(--pc-block);
  padding-top: var(--pc-block);
}

.page-contact .cfaq__grid {
  display: grid;
  gap: clamp(30px, 4vw, 56px);
}

@media (min-width: 940px) {
  .page-contact .cfaq__grid {
    grid-template-columns: minmax(0, 4fr) minmax(0, 7.4fr);
    align-items: start;
  }
}

.page-contact .cfaq__title {
  margin: 12px 0 0;
  color: var(--paper);
}

.page-contact .cfaq__lede {
  margin: 16px 0 0;
  font-size: 15px;
  line-height: 1.8;
  color: rgba(246, 244, 236, .74);
}

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

.page-contact .qa {
  border-bottom: 2px solid var(--turf);
}

.page-contact .qa:first-child {
  border-top: 2px solid var(--turf);
}

.page-contact .qa__q {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 16px;
  padding: 18px 4px;
  list-style: none;
  cursor: pointer;
  font-size: 16px;
  font-weight: 600;
  color: var(--paper);
  transition: color var(--ease);
}

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

.page-contact .qa__q::after {
  content: "+";
  flex: none;
  font-family: var(--font-mono);
  font-size: 18px;
  line-height: 1;
  color: var(--lime);
}

.page-contact .qa[open] .qa__q::after {
  content: "\2212";
}

.page-contact .qa__q:hover {
  color: var(--lime-soft);
}

.page-contact .qa__q:focus-visible {
  outline: 2px solid var(--lime);
  outline-offset: 2px;
}

.page-contact .qa__a {
  padding: 0 4px 20px;
  font-size: 15px;
  line-height: 1.85;
  color: rgba(246, 244, 236, .74);
}

.page-contact .qa__a p {
  margin: 0 0 12px;
}

.page-contact .qa__link {
  display: inline-block;
  font-size: 13px;
  color: var(--lime);
  text-decoration: none;
  border-bottom: 1px solid rgba(198, 255, 61, .5);
  transition: border-color var(--ease);
}

.page-contact .qa__link:hover {
  border-bottom-color: var(--lime);
}