.page-contact {
  --contact-gap: clamp(16px, 3.4vw, 34px);
  --contact-pad: clamp(14px, 2.4vw, 22px);
}

.page-contact .crumb {
  padding: 10px 0 4px;
  font-size: 12px;
  letter-spacing: .04em;
}

.page-contact h1,
.page-contact h2,
.page-contact h3 {
  font-family: var(--font-display);
  font-weight: 800;
  letter-spacing: .01em;
}

/* ---------- 首屏 ---------- */
.page-contact .consult-hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--contact-gap);
  padding: clamp(8px, 1.6vw, 16px) 0 clamp(22px, 4vw, 40px);
}

.page-contact .consult-hero__main,
.page-contact .consult-hero__side {
  min-width: 0;
}

.page-contact .consult-hero__main h1 {
  margin: .3em 0 .38em;
  font-size: clamp(31px, 7vw, 58px);
  line-height: 1.04;
  color: var(--cream);
}

.page-contact .consult-hero .lede {
  max-width: 46ch;
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.75;
  color: var(--mist);
}

.page-contact .type-picker {
  position: relative;
  margin-top: clamp(20px, 3vw, 30px);
}

.page-contact .type-picker__input {
  position: absolute;
  width: 1px;
  height: 1px;
  opacity: 0;
  pointer-events: none;
}

.page-contact .type-picker__chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-contact .chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 13px;
  border: 2px solid var(--line);
  background: rgba(11, 42, 35, .72);
  color: var(--mist);
  font-family: var(--font-display);
  font-size: 15px;
  font-weight: 700;
  letter-spacing: .03em;
  cursor: pointer;
  transition: transform .18s var(--ease), border-color .18s var(--ease), color .18s var(--ease), box-shadow .18s var(--ease);
}

.page-contact .chip:hover {
  border-color: var(--mist);
  color: var(--cream);
}

.page-contact .chip__num {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 400;
  color: var(--stone);
}

.page-contact:has(#t-access:checked) .chip[for="t-access"],
.page-contact:has(#t-data:checked) .chip[for="t-data"],
.page-contact:has(#t-app:checked) .chip[for="t-app"],
.page-contact:has(#t-notice:checked) .chip[for="t-notice"],
.page-contact:has(#t-biz:checked) .chip[for="t-biz"] {
  border-color: var(--cyan);
  background: rgba(79, 242, 208, .1);
  color: var(--cyan);
  box-shadow: 5px 5px 0 rgba(0, 0, 0, .5);
  transform: translate(-2px, -2px);
}

.page-contact:has(#t-access:focus-visible) .chip[for="t-access"],
.page-contact:has(#t-data:focus-visible) .chip[for="t-data"],
.page-contact:has(#t-app:focus-visible) .chip[for="t-app"],
.page-contact:has(#t-notice:focus-visible) .chip[for="t-notice"],
.page-contact:has(#t-biz:focus-visible) .chip[for="t-biz"] {
  outline: 2px solid var(--cream);
  outline-offset: 3px;
}

.page-contact .type-hints {
  margin-top: 16px;
  min-height: 86px;
  padding: 11px 14px;
  border-left: 3px solid var(--clay);
  background: linear-gradient(90deg, rgba(201, 123, 90, .14), rgba(201, 123, 90, 0) 78%);
}

.page-contact .type-hint {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.72;
  color: var(--cream);
}

.page-contact .type-hint {
  display: none;
}

.page-contact .type-hint--data {
  display: block;
}

.page-contact:has(#t-access:checked) .type-hint--data,
.page-contact:has(#t-app:checked) .type-hint--data,
.page-contact:has(#t-notice:checked) .type-hint--data,
.page-contact:has(#t-biz:checked) .type-hint--data {
  display: none;
}

.page-contact:has(#t-access:checked) .type-hint--access,
.page-contact:has(#t-app:checked) .type-hint--app,
.page-contact:has(#t-notice:checked) .type-hint--notice,
.page-contact:has(#t-biz:checked) .type-hint--biz {
  display: block;
}

.page-contact .quick-contact {
  border: 3px solid var(--cream);
  background: var(--ink);
  padding: var(--contact-pad);
  box-shadow: var(--shadow-hard);
}

.page-contact .quick-contact__label {
  margin: 0 0 4px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--stone);
}

.page-contact .quick-contact__label ~ .quick-contact__label {
  margin-top: 16px;
}

.page-contact .quick-contact__mail {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(14px, 3.4vw, 17px);
  font-weight: 700;
  color: var(--cyan);
  text-decoration: none;
  overflow-wrap: anywhere;
}

.page-contact .quick-contact__tel {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(21px, 5vw, 27px);
  font-weight: 700;
  letter-spacing: .02em;
  color: var(--orange);
  text-decoration: none;
}

.page-contact .quick-contact__mail:hover,
.page-contact .quick-contact__tel:hover {
  text-decoration: underline;
  text-underline-offset: 4px;
}

.page-contact .quick-contact__note {
  margin: 16px 0 0;
  padding-top: 12px;
  border-top: 1px solid var(--line-soft);
  font-size: 13px;
  line-height: 1.7;
  color: var(--mist);
}

.page-contact .consult-hero__figure {
  margin-top: var(--contact-gap);
}

.page-contact .consult-hero__figure img,
.page-contact .address-split img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

/* ---------- 章节导航 ---------- */
.page-contact .chapter-nav {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding: 10px 0 14px;
  border-top: 1px solid var(--line-soft);
  border-bottom: 1px solid var(--line-soft);
  scrollbar-width: thin;
}

.page-contact .chapter-nav a {
  flex: 0 0 auto;
  padding: 6px 11px;
  border: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .02em;
  color: var(--mist);
  text-decoration: none;
  white-space: nowrap;
}

.page-contact .chapter-nav a:hover {
  border-color: var(--cyan);
  color: var(--cyan);
}

.page-contact .chapter-nav a[aria-current="true"] {
  background: var(--cyan);
  border-color: var(--cyan);
  color: var(--ink);
}

/* ---------- 通用章节 ---------- */
.page-contact .band {
  padding-top: clamp(30px, 5vw, 58px);
  padding-bottom: clamp(30px, 5vw, 58px);
}

.page-contact .section-head {
  margin-bottom: clamp(18px, 3vw, 28px);
}

.page-contact .chapter-num {
  display: block;
  margin-bottom: 2px;
  font-family: var(--font-mono);
  font-size: clamp(29px, 6vw, 48px);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -.04em;
  color: rgba(79, 242, 208, .3);
}

.page-contact .section-head h2 {
  margin: .1em 0 .35em;
  font-size: clamp(24px, 4.6vw, 36px);
  line-height: 1.14;
  color: var(--cream);
}

.page-contact .section-head .lede {
  max-width: 52ch;
  font-size: 15px;
  line-height: 1.75;
  color: var(--mist);
}

/* ---------- 客服渠道 ---------- */
.page-contact .channel-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
}

.page-contact .channel-card {
  border: 2px solid var(--line);
  background: rgba(17, 22, 20, .6);
  padding: var(--contact-pad);
}

.page-contact .channel-card--mail {
  border-top: 4px solid var(--cyan);
}

.page-contact .channel-card--phone {
  border-top: 4px solid var(--orange);
}

.page-contact .channel-card__title {
  margin: 0 0 8px;
  font-size: 20px;
  color: var(--cream);
}

.page-contact .channel-card__text {
  margin: 0 0 14px;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--mist);
}

.page-contact .channel-card__link {
  font-family: var(--font-mono);
  font-size: 15px;
  font-weight: 700;
  color: var(--cyan);
  text-decoration: none;
  overflow-wrap: anywhere;
}

.page-contact .channel-card--phone .channel-card__link {
  color: var(--orange);
  font-size: 19px;
}

.page-contact .channel-card__link:hover {
  text-decoration: underline;
  text-underline-offset: 4px;
}

.page-contact .consult-stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin-top: 18px;
}

.page-contact .consult-stats .stat {
  border: 2px solid var(--line);
  background: rgba(17, 22, 20, .5);
  padding: 14px;
}

.page-contact .consult-stats .stat__value {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(20px, 4.4vw, 26px);
  font-weight: 700;
  color: var(--cyan);
  line-height: 1.15;
}

.page-contact .consult-stats .stat__label {
  display: block;
  margin-top: 5px;
  font-size: 12.5px;
  line-height: 1.5;
  color: var(--mist);
}

/* ---------- 处理流程 ---------- */
.page-contact .process-flow {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 16px;
}

.page-contact .flow-step {
  border-left: 3px solid var(--moss);
  padding: 2px 0 2px 16px;
}

.page-contact .flow-step__num {
  display: block;
  font-family: var(--font-mono);
  font-size: 22px;
  font-weight: 700;
  color: var(--cyan);
  letter-spacing: -.02em;
}

.page-contact .flow-step__title {
  margin: 4px 0 6px;
  font-size: 19px;
  color: var(--cream);
}

.page-contact .flow-step__text {
  margin: 0;
  font-size: 14px;
  line-height: 1.72;
  color: var(--mist);
}

/* ---------- 材料清单 ---------- */
.page-contact .split-panel {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--contact-gap);
}

.page-contact .checklist {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 10px;
}

.page-contact .checklist__item {
  position: relative;
  display: flex;
  gap: 12px;
  padding: 14px;
  border: 2px solid var(--line-soft);
  background: rgba(47, 107, 82, .14);
  cursor: pointer;
  transition: border-color .18s var(--ease), background .18s var(--ease);
}

.page-contact .checklist__box {
  position: absolute;
  width: 1px;
  height: 1px;
  opacity: 0;
}

.page-contact .checklist__mark {
  flex: 0 0 auto;
  width: 20px;
  height: 20px;
  margin-top: 3px;
  border: 2px solid var(--stone);
  display: grid;
  place-items: center;
  transition: border-color .18s var(--ease);
}

.page-contact .checklist__mark::after {
  content: "";
  width: 10px;
  height: 10px;
  background: var(--cyan);
  transform: scale(0);
  transition: transform .16s var(--ease);
}

.page-contact .checklist__box:checked ~ .checklist__mark {
  border-color: var(--cyan);
}

.page-contact .checklist__box:checked ~ .checklist__mark::after {
  transform: scale(1);
}

.page-contact .checklist__box:focus-visible ~ .checklist__mark {
  outline: 2px solid var(--cream);
  outline-offset: 3px;
}

.page-contact .checklist__item:has(.checklist__box:checked) {
  border-color: var(--cyan);
  background: rgba(79, 242, 208, .1);
}

.page-contact .checklist__body {
  display: block;
  min-width: 0;
}

.page-contact .checklist__title {
  display: block;
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 700;
  color: var(--cream);
}

.page-contact .checklist__desc {
  display: block;
  margin-top: 4px;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--mist);
}

.page-contact:has(#t-data:checked) .checklist__item--shot,
.page-contact:has(#t-data:checked) .checklist__item--scene,
.page-contact:has(#t-app:checked) .checklist__item--dev,
.page-contact:has(#t-app:checked) .checklist__item--net,
.page-contact:has(#t-biz:checked) .checklist__item--goal {
  border-color: var(--cyan);
  background: rgba(79, 242, 208, .07);
}

.page-contact .checklist-aside {
  align-self: start;
}

.page-contact .checklist-aside .note {
  margin: 0 0 14px;
  font-size: 13.5px;
  line-height: 1.72;
}

.page-contact .checklist-aside__text {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--mist);
}

.page-contact .checklist-aside__text a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(79, 242, 208, .45);
}

.page-contact .checklist-aside__text a:hover {
  border-bottom-color: var(--cyan);
}

/* ---------- 地址 ---------- */
.page-contact .address-split {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--contact-gap);
  align-items: start;
}

.page-contact .address-block {
  border-left: 4px solid var(--clay);
  padding: 4px 0 4px 16px;
}

.page-contact .address-block__label {
  margin: 14px 0 3px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--stone);
}

.page-contact .address-block__label:first-child {
  margin-top: 0;
}

.page-contact .address-block__line {
  margin: 0;
  font-family: var(--font-mono);
  font-size: clamp(15px, 2.9vw, 19px);
  line-height: 1.6;
  letter-spacing: .02em;
  color: var(--cream);
}

.page-contact .address-block__line a {
  color: var(--cyan);
  text-decoration: none;
  overflow-wrap: anywhere;
}

.page-contact .address-block__line a:hover {
  text-decoration: underline;
  text-underline-offset: 4px;
}

/* ---------- 商务合作 ---------- */
.page-contact .partner-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
}

.page-contact .partner-card {
  border: 2px solid var(--line);
  border-top: 4px solid var(--violet);
  background: rgba(17, 22, 20, .55);
  padding: var(--contact-pad);
}

.page-contact .partner-card:nth-child(2) {
  border-top-color: var(--cyan);
}

.page-contact .partner-card:nth-child(3) {
  border-top-color: var(--orange);
}

.page-contact .partner-card__num {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--violet);
}

.page-contact .partner-card__title {
  margin: 6px 0 8px;
  font-size: 20px;
  color: var(--cream);
}

.page-contact .partner-card__text {
  margin: 0 0 12px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--mist);
}

.page-contact .partner-card__meta {
  margin: 0;
  padding-top: 10px;
  border-top: 1px solid var(--line-soft);
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.6;
  color: var(--clay);
}

.page-contact .next-step {
  margin-top: 22px;
  padding: 16px;
  border: 2px dashed var(--line);
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  align-items: center;
  justify-content: space-between;
}

.page-contact .next-step__text {
  margin: 0;
  max-width: 52ch;
  font-size: 14px;
  line-height: 1.72;
  color: var(--mist);
}

.page-contact .next-step__links {
  margin: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

/* ---------- 平板与桌面 ---------- */
@media (min-width: 700px) {
  .page-contact .channel-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

  .page-contact .process-flow {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 22px;
  }

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

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

@media (min-width: 940px) {
  .page-contact .consult-hero {
    grid-template-columns: minmax(0, 1.55fr) minmax(270px, .8fr);
    align-items: start;
  }

  .page-contact .consult-hero__side {
    position: sticky;
    top: 22px;
  }

  .page-contact .consult-hero__figure {
    margin-top: 16px;
  }

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

  .page-contact .flow-step {
    border-left: none;
    border-top: 3px solid var(--moss);
    padding: 16px 18px 0 0;
  }

  .page-contact .split-panel {
    grid-template-columns: minmax(0, 1.35fr) minmax(240px, .65fr);
  }

  .page-contact .address-split {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, .95fr);
  }

  .page-contact .type-hints {
    min-height: 74px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .chip,
  .page-contact .checklist__item,
  .page-contact .checklist__mark,
  .page-contact .checklist__mark::after {
    transition: none;
  }

  .page-contact:has(#t-access:checked) .chip[for="t-access"],
  .page-contact:has(#t-data:checked) .chip[for="t-data"],
  .page-contact:has(#t-app:checked) .chip[for="t-app"],
  .page-contact:has(#t-notice:checked) .chip[for="t-notice"],
  .page-contact:has(#t-biz:checked) .chip[for="t-biz"] {
    transform: none;
  }
}