.page-contact {
  --pc-radius: 4px;
  --pc-shadow: 0 24px 32px rgba(10, 14, 19, .4);
  display: block;
  background: var(--ink-900);
  color: var(--paper);
  overflow-x: clip;
}

.page-contact .contact-crumb {
  padding-top: clamp(92px, 14vh, 132px);
}

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  position: relative;
  padding: 28px 0 clamp(56px, 8vw, 88px);
  overflow: hidden;
}

.page-contact .contact-hero__slab {
  position: absolute;
  top: -18%;
  right: -16%;
  width: min(820px, 86vw);
  height: 132%;
  background: linear-gradient(148deg, var(--ink-800) 0%, var(--ink-700) 38%, var(--ink-900) 82%);
  transform: skewX(-13deg) rotate(-2.5deg);
  opacity: .92;
  pointer-events: none;
}

.page-contact .contact-hero__grid {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 32px;
}

.page-contact .contact-hero__eyebrow {
  color: var(--cyan);
  margin: 0;
}

.page-contact .contact-hero__title {
  margin: 16px 0 22px;
  font-size: clamp(2.05rem, 6.2vw, 4.2rem);
  font-weight: 800;
  line-height: 1.04;
  letter-spacing: -0.025em;
  max-width: 15ch;
}

.page-contact .contact-hero__lede {
  max-width: 48ch;
  margin: 0 0 28px;
}

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

.page-contact .hero-jump__link {
  display: inline-block;
  padding: 9px 16px;
  border: 1px solid var(--hairline);
  border-radius: 999px;
  color: var(--paper);
  font-size: 13px;
  letter-spacing: .12em;
  text-decoration: none;
  transition: border-color .2s ease, color .2s ease, transform .2s ease;
}

.page-contact .hero-jump__link:hover,
.page-contact .hero-jump__link:focus-visible {
  border-color: var(--cyan);
  color: var(--cyan);
  transform: translateY(-2px);
}

.page-contact .contact-hero__aside {
  position: relative;
  padding: 22px 22px 24px;
  background: var(--ink-800);
  border-left: 3px solid var(--cyan);
  border-radius: var(--pc-radius);
  box-shadow: var(--pc-shadow);
}

.page-contact .contact-hero__asideLabel {
  margin: 0 0 14px;
  color: var(--mist);
}

.page-contact .contact-hero__mail {
  margin: 0 0 6px;
  font-family: var(--font-mono);
  font-size: clamp(.95rem, 3.4vw, 1.05rem);
  color: var(--paper);
  word-break: break-all;
}

.page-contact .contact-hero__tel {
  margin: 0 0 10px;
  font-size: 1.6rem;
  color: var(--orange);
  letter-spacing: .02em;
}

.page-contact .contact-hero__hours {
  margin: 0 0 16px;
  font-size: 13px;
  letter-spacing: .1em;
  color: var(--mist);
}

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

.page-contact .contact-hero__memo a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(47, 230, 214, .4);
}

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

/* ---------- 三条通道 ---------- */
.page-contact .contact-lanes {
  padding: clamp(40px, 6vw, 72px) 0 clamp(48px, 7vw, 88px);
}

.page-contact .contact-lanes__head {
  max-width: 62ch;
}

.page-contact .contact-lanes__title {
  margin: 12px 0 16px;
  font-size: clamp(1.6rem, 4.2vw, 2.5rem);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.02em;
}

.page-contact .contact-lanes__intro {
  margin: 0;
  color: var(--mist);
  line-height: 1.8;
}

.page-contact .contact-lanes__figure {
  margin: clamp(28px, 5vw, 44px) 0 0;
}

.page-contact .contact-lanes__figure .figure__frame {
  overflow: hidden;
  border-radius: var(--pc-radius);
}

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

.page-contact .lanes {
  list-style: none;
  margin: clamp(28px, 5vw, 44px) 0 0;
  padding: 0;
}

.page-contact .lanes__item {
  position: relative;
  display: grid;
  gap: 18px;
  padding: 34px 0;
  border-top: 1px solid var(--hairline);
}

.page-contact .lanes__item:last-child {
  border-bottom: 1px solid var(--hairline);
}

.page-contact .lanes__rail {
  display: flex;
  align-items: center;
  gap: 14px;
}

.page-contact .lanes__index {
  font-size: 2.4rem;
  line-height: 1;
  color: var(--cyan);
  opacity: .55;
}

.page-contact .lanes__tag {
  color: var(--mist);
}

.page-contact .lanes__title {
  margin: 0 0 14px;
  font-size: clamp(1.2rem, 3.4vw, 1.7rem);
  font-weight: 800;
  line-height: 1.25;
  letter-spacing: -0.01em;
}

.page-contact .lanes__text {
  margin: 0 0 22px;
  color: var(--mist);
  line-height: 1.85;
  max-width: 58ch;
}

.page-contact .lanes__meta {
  margin: 0;
  display: grid;
  gap: 12px;
}

.page-contact .lanes__metaRow {
  display: grid;
  gap: 4px;
}

.page-contact .lanes__metaRow dt {
  font-size: 11px;
  letter-spacing: .18em;
  color: var(--mist);
  text-transform: uppercase;
}

.page-contact .lanes__metaRow dd {
  margin: 0;
  font-size: 15px;
  line-height: 1.7;
}

.page-contact .lanes__mono {
  font-family: var(--font-mono);
  word-break: break-all;
  color: var(--paper);
}

.page-contact .lanes__action {
  margin: 24px 0 0;
}

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

.page-contact .lanes__body .note a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(47, 230, 214, .35);
}

/* 纠错步骤 */
.page-contact .steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 2px;
}

.page-contact .steps__item {
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr);
  gap: 14px;
  padding: 16px 14px 16px 0;
  border-left: 3px solid transparent;
  transition: border-color .22s ease, background-color .22s ease;
}

.page-contact .steps__item:hover,
.page-contact .steps__item:focus-within {
  border-left-color: var(--orange);
  background: rgba(10, 42, 70, .5);
}

.page-contact .steps__no {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border: 1px solid var(--hairline);
  border-radius: 50%;
  font-size: 13px;
  color: var(--cyan);
}

.page-contact .steps__title {
  margin: 0 0 6px;
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: -0.005em;
}

.page-contact .steps__text {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--mist);
}

.page-contact .steps__more {
  margin: 0;
  max-height: 0;
  opacity: 0;
  overflow: hidden;
  font-size: 13px;
  line-height: 1.7;
  color: var(--cyan);
  transition: max-height .28s ease, opacity .28s ease, margin-top .28s ease;
}

.page-contact .steps__item:hover .steps__more,
.page-contact .steps__item:focus-within .steps__more {
  max-height: 140px;
  opacity: 1;
  margin-top: 8px;
}

@media (hover: none) {
  .page-contact .steps__more {
    max-height: none;
    opacity: 1;
    margin-top: 8px;
  }
}

/* ---------- 常见问题 ---------- */
.page-contact .contact-faq {
  padding: clamp(44px, 7vw, 80px) 0;
  background: linear-gradient(180deg, rgba(10, 42, 70, .55), rgba(4, 22, 42, 0));
}

.page-contact .contact-faq__grid {
  display: grid;
  gap: 30px;
}

.page-contact .contact-faq__title {
  margin: 12px 0 12px;
  font-size: clamp(1.5rem, 4vw, 2.15rem);
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: -0.02em;
}

.page-contact .contact-faq__hint {
  margin: 0;
  font-size: 14px;
  color: var(--mist);
}

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

.page-contact .qa {
  padding-left: 18px;
  border-left: 2px solid var(--hairline);
  transition: border-color .22s ease;
}

.page-contact .qa:hover {
  border-left-color: var(--cyan);
}

.page-contact .qa__q {
  margin: 0 0 8px;
  font-size: 1.05rem;
  font-weight: 700;
  line-height: 1.5;
}

.page-contact .qa__a {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--mist);
  max-width: 62ch;
}

/* ---------- 沙白纸区块 ---------- */
.page-contact .contact-form-block {
  padding: clamp(52px, 8vw, 96px) 0;
  background: var(--paper);
  color: var(--ink-black);
}

.page-contact .contact-form-block__grid {
  display: grid;
  gap: 36px;
}

.page-contact .contact-form-block__rail {
  order: 2;
}

.page-contact .contact-form-block__body {
  order: 1;
}

.page-contact .contact-form-block__figure {
  margin: 0;
}

.page-contact .contact-form-block__figure .figure__frame {
  overflow: hidden;
  border-radius: var(--pc-radius);
}

.page-contact .contact-form-block__figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
}

.page-contact .contact-form-block .figure__caption {
  margin-top: 10px;
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--graphite);
}

.page-contact .contact-form-block__railNote {
  margin: 18px 0 0;
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--graphite);
}

.page-contact .contact-form-block__label {
  color: var(--graphite);
  margin: 0;
}

.page-contact .contact-form-block__title {
  margin: 12px 0 16px;
  font-size: clamp(1.5rem, 4.2vw, 2.3rem);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.02em;
  color: var(--ink-black);
}

.page-contact .contact-form-block__lede {
  margin: 0 0 32px;
  font-size: 15.5px;
  line-height: 1.85;
  color: var(--graphite);
  max-width: 56ch;
}

.page-contact .fields {
  display: grid;
  gap: 4px;
}

.page-contact .field {
  display: block;
  padding-bottom: 20px;
}

.page-contact .field__label {
  display: block;
  margin-bottom: 8px;
  font-size: 11px;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--graphite);
}

.page-contact .field__input,
.page-contact .field__area,
.page-contact .field__select {
  display: block;
  width: 100%;
  max-width: 100%;
  box-sizing: border-box;
  padding: 10px 2px;
  background: transparent;
  border: 0;
  border-bottom: 1.5px solid var(--graphite);
  border-radius: 0;
  font-family: inherit;
  font-size: 16px;
  line-height: 1.6;
  color: var(--ink-black);
  transition: border-color .2s ease, box-shadow .2s ease;
}

.page-contact .field__area {
  resize: vertical;
  min-height: 128px;
}

.page-contact .field__select {
  appearance: none;
  background-image: linear-gradient(45deg, transparent 50%, var(--graphite) 50%), linear-gradient(135deg, var(--graphite) 50%, transparent 50%);
  background-position: calc(100% - 14px) calc(50% + 1px), calc(100% - 8px) calc(50% + 1px);
  background-size: 6px 6px, 6px 6px;
  background-repeat: no-repeat;
  padding-right: 32px;
}

.page-contact .field__input:focus,
.page-contact .field__area:focus,
.page-contact .field__select:focus {
  outline: none;
  border-bottom-color: var(--cyan);
  box-shadow: 0 7px 0 -5px rgba(47, 230, 214, .55);
}

.page-contact .field__input::placeholder,
.page-contact .field__area::placeholder {
  color: rgba(44, 56, 67, .55);
}

.page-contact .field__tip {
  display: block;
  margin-top: 7px;
  font-size: 12.5px;
  line-height: 1.6;
  color: var(--graphite);
}

.page-contact .field__warn {
  display: none;
  margin-top: 6px;
  font-size: 12.5px;
  line-height: 1.6;
  color: #8a5b12;
}

.page-contact .field__input:not(:placeholder-shown):invalid ~ .field__warn,
.page-contact .field__area:not(:placeholder-shown):invalid ~ .field__warn {
  display: block;
}

.page-contact .fields__note {
  margin-top: 18px;
  padding-top: 20px;
  border-top: 1px solid rgba(44, 56, 67, .35);
}

.page-contact .fields__note .note {
  margin: 0;
  color: var(--graphite);
  font-size: 13px;
  line-height: 1.8;
  border-left-color: var(--graphite);
}

.page-contact .fields__mono {
  font-family: var(--font-mono);
  word-break: break-all;
  color: var(--ink-black);
}

.page-contact .contact-form-block__outro {
  margin: 22px 0 0;
  font-size: 13.5px;
  line-height: 1.8;
  color: var(--graphite);
}

.page-contact .contact-form-block__outro a {
  color: var(--ink-black);
  text-decoration: none;
  border-bottom: 1.5px solid var(--cyan);
}

.page-contact .contact-form-block__outro a:hover {
  border-bottom-color: var(--orange);
}

/* ---------- 主体与备案 ---------- */
.page-contact .contact-registry {
  padding: clamp(48px, 7vw, 88px) 0 clamp(64px, 9vw, 104px);
}

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

.page-contact .contact-registry__title {
  margin: 12px 0 16px;
  font-size: clamp(1.45rem, 3.8vw, 2.1rem);
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: -0.02em;
}

.page-contact .contact-registry__text {
  margin: 0 0 26px;
  color: var(--mist);
  line-height: 1.85;
  max-width: 56ch;
}

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

.page-contact .contact-refs__link {
  display: inline-block;
  padding: 8px 14px;
  border: 1px solid var(--hairline);
  border-radius: 999px;
  font-size: 13px;
  color: var(--paper);
  text-decoration: none;
  transition: border-color .2s ease, color .2s ease;
}

.page-contact .contact-refs__link:hover,
.page-contact .contact-refs__link:focus-visible {
  border-color: var(--cyan);
  color: var(--cyan);
}

.page-contact .registry-list {
  margin: 0;
  display: grid;
  gap: 0;
  border-top: 1px solid var(--hairline);
}

.page-contact .registry-list__row {
  display: grid;
  gap: 6px;
  padding: 16px 0;
  border-bottom: 1px solid var(--hairline);
}

.page-contact .registry-list__row dt {
  font-size: 11px;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--mist);
}

.page-contact .registry-list__row dd {
  margin: 0;
  font-size: 15px;
  line-height: 1.7;
  color: var(--paper);
}

.page-contact .registry-list__mono {
  font-family: var(--font-mono);
  word-break: break-all;
}

.page-contact .registry-list__icp {
  font-size: 12.5px;
  letter-spacing: .22em;
  color: var(--mist);
}

.page-contact .registry-list__row--fill {
  border-bottom-color: rgba(47, 230, 214, .35);
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-contact .fields {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    column-gap: 32px;
  }

  .page-contact .field--wide {
    grid-column: 1 / -1;
  }

  .page-contact .lanes__metaRow {
    grid-template-columns: 104px minmax(0, 1fr);
    gap: 16px;
    align-items: baseline;
  }

  .page-contact .registry-list__row {
    grid-template-columns: 132px minmax(0, 1fr);
    gap: 20px;
    align-items: baseline;
  }
}

@media (min-width: 900px) {
  .page-contact .contact-hero__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
    gap: 56px;
    align-items: end;
  }

  .page-contact .contact-hero__aside {
    margin-top: 32px;
  }

  .page-contact .contact-lanes__figure {
    margin-top: 48px;
  }

  .page-contact .lanes__item {
    grid-template-columns: 190px minmax(0, 1fr);
    gap: 44px;
    padding: 52px 0;
    align-items: start;
  }

  .page-contact .lanes__item:nth-child(2) {
    margin-left: 56px;
  }

  .page-contact .lanes__item:nth-child(3) {
    margin-left: 112px;
  }

  .page-contact .lanes__rail {
    flex-direction: column;
    align-items: flex-start;
    gap: 10px;
  }

  .page-contact .lanes__index {
    font-size: 3.2rem;
  }

  .page-contact .contact-faq__grid {
    grid-template-columns: minmax(0, 4fr) minmax(0, 7fr);
    gap: 56px;
    align-items: start;
  }

  .page-contact .contact-form-block__grid {
    grid-template-columns: minmax(0, 4fr) minmax(0, 7fr);
    gap: 60px;
    align-items: start;
  }

  .page-contact .contact-form-block__rail {
    order: 1;
  }

  .page-contact .contact-form-block__body {
    order: 2;
  }

  .page-contact .contact-registry__grid {
    grid-template-columns: minmax(0, 5fr) minmax(0, 6fr);
    gap: 64px;
    align-items: start;
  }
}

@media (min-width: 1180px) {
  .page-contact .lanes__item:nth-child(2) {
    margin-left: 88px;
  }

  .page-contact .lanes__item:nth-child(3) {
    margin-left: 176px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact *,
  .page-contact *::before,
  .page-contact *::after {
    animation-duration: .001ms !important;
    transition-duration: .001ms !important;
  }
}