.page-contact {
  --pc-cut: 16px;
  --pc-line: rgba(184, 137, 43, 0.30);
  --pc-line-soft: rgba(30, 90, 71, 0.22);
}

.page-contact .contact-hero {
  position: relative;
  overflow: hidden;
  padding-block: clamp(24px, 3.5vw, 48px) clamp(40px, 5vw, 76px);
}

.page-contact .contact-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(184, 137, 43, 0.11) 1px, transparent 1px),
    linear-gradient(90deg, rgba(184, 137, 43, 0.11) 1px, transparent 1px);
  background-size: 72px 72px;
  -webkit-mask-image: radial-gradient(120% 85% at 78% 0%, #000 0%, transparent 72%);
  mask-image: radial-gradient(120% 85% at 78% 0%, #000 0%, transparent 72%);
}

.page-contact .contact-hero .shell {
  position: relative;
  z-index: 1;
}

.page-contact .contact-hero__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(28px, 3.5vw, 52px);
  align-items: center;
  margin-top: clamp(28px, 3.5vw, 48px);
}

.page-contact .contact-hero__title {
  margin: 14px 0 0;
  font-family: var(--font-display);
  font-weight: 300;
  font-size: clamp(2.1rem, 4.6vw, 3.9rem);
  line-height: 1.14;
  letter-spacing: -0.02em;
  color: var(--ivory-050);
}

.page-contact .contact-hero__lede {
  max-width: 40ch;
  margin: 18px 0 0;
  font-size: var(--body-fluid);
  line-height: 1.85;
  color: rgba(244, 239, 228, 0.76);
}

.page-contact .contact-hero__jump {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.page-contact .contact-hero__visual {
  position: relative;
  border: 1px solid var(--pc-line);
  overflow: hidden;
  clip-path: polygon(0 0, calc(100% - var(--pc-cut)) 0, 100% var(--pc-cut), 100% 100%, var(--pc-cut) 100%, 0 calc(100% - var(--pc-cut)));
}

.page-contact .contact-hero__img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  filter: saturate(0.82) contrast(1.06);
}

.page-contact .contact-hero__visual-tag {
  position: absolute;
  left: 14px;
  bottom: 12px;
  margin: 0;
  padding: 4px 10px;
  color: var(--gold-300);
  background: rgba(6, 18, 15, 0.82);
  border-left: 2px solid var(--red-600);
  letter-spacing: 0.08em;
}

/* ---- 三块联系面板 ---- */

.page-contact .contact-channels {
  padding-block: clamp(40px, 5.5vw, 84px);
}

.page-contact .contact-channels__head {
  margin-bottom: clamp(24px, 3vw, 40px);
}

.page-contact .contact-channels__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(16px, 2vw, 24px);
}

.page-contact .contact-card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: clamp(22px, 2.6vw, 34px);
  background: linear-gradient(158deg, rgba(10, 43, 34, 0.96), rgba(6, 18, 15, 0.97));
  border: 1px solid var(--pc-line);
  color: var(--ivory-050);
  transition: border-color 240ms var(--ease), transform 260ms var(--ease);
}

.page-contact .contact-card.cut {
  clip-path: polygon(0 0, calc(100% - var(--pc-cut)) 0, 100% var(--pc-cut), 100% 100%, var(--pc-cut) 100%, 0 calc(100% - var(--pc-cut)));
}

.page-contact .contact-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 46px;
  height: 3px;
  background: var(--gold-600);
}

.page-contact .contact-card--phone::before {
  background: var(--blue-400);
}

.page-contact .contact-card--addr::before {
  background: var(--red-600);
}

.page-contact .contact-card:hover,
.page-contact .contact-card:focus-within {
  border-color: rgba(184, 137, 43, 0.62);
  transform: translateY(-3px);
}

.page-contact .contact-card__index {
  margin: 0;
  color: var(--gold-600);
  letter-spacing: 0.1em;
}

.page-contact .contact-card__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 500;
  font-size: clamp(1.24rem, 1.6vw, 1.5rem);
  letter-spacing: 0.02em;
  color: var(--ivory-050);
}

.page-contact .contact-card__value {
  display: inline-block;
  text-decoration: none;
  color: var(--gold-300);
  background-image: linear-gradient(var(--gold-600), var(--gold-600));
  background-repeat: no-repeat;
  background-position: 0 100%;
  background-size: 0% 1px;
  transition: background-size 220ms var(--ease);
  word-break: break-word;
}

.page-contact .contact-card__value--mail {
  font-family: var(--font-mono);
  font-size: clamp(0.92rem, 1.15vw, 1.08rem);
  letter-spacing: 0.03em;
}

.page-contact .contact-card__value--tel {
  font-family: var(--font-mono);
  font-weight: 500;
  font-size: clamp(1.4rem, 2.3vw, 1.95rem);
  letter-spacing: 0.1em;
}

.page-contact .contact-card__value--addr {
  font-style: normal;
  font-size: 1rem;
  line-height: 1.75;
  color: var(--ivory-050);
}

.page-contact .contact-card__value:hover,
.page-contact .contact-card__value:focus-visible {
  background-size: 100% 1px;
}

.page-contact .contact-card__note {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.75;
  color: rgba(244, 239, 228, 0.64);
  transition: color 240ms var(--ease);
}

.page-contact .contact-card:hover .contact-card__note,
.page-contact .contact-card:focus-within .contact-card__note {
  color: rgba(244, 239, 228, 0.9);
}

.page-contact .contact-card__foot {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  margin-top: auto;
  padding-top: 6px;
}

.page-contact .contact-card__state {
  color: var(--sage-500);
  letter-spacing: 0.06em;
}

.page-contact .contact-card .copy-btn {
  border-color: rgba(184, 137, 43, 0.55);
  color: var(--gold-300);
}

.page-contact .contact-card .copy-btn:hover {
  background: rgba(184, 137, 43, 0.16);
}

/* ---- 准备清单 ---- */

.page-contact .contact-prep {
  padding-block: clamp(40px, 5.5vw, 84px);
}

.page-contact .contact-prep__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(28px, 3.5vw, 48px);
  align-items: start;
  margin-top: clamp(24px, 3vw, 40px);
}

.page-contact .contact-prep__list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--pc-line-soft);
}

.page-contact .prep-item {
  border-bottom: 1px solid var(--pc-line-soft);
}

.page-contact .prep-item__label {
  display: grid;
  grid-template-columns: auto auto 1fr;
  gap: 12px;
  align-items: start;
  padding: 18px 4px;
  cursor: pointer;
  transition: background-color 200ms var(--ease);
}

.page-contact .prep-item__label:hover {
  background: rgba(18, 59, 47, 0.05);
}

.page-contact .prep-item__box {
  -webkit-appearance: none;
  appearance: none;
  width: 20px;
  height: 20px;
  margin: 4px 0 0;
  border: 1px solid var(--ink-500);
  background: transparent;
  position: relative;
  cursor: pointer;
  clip-path: polygon(0 0, calc(100% - 6px) 0, 100% 6px, 100% 100%, 6px 100%, 0 calc(100% - 6px));
  transition: background-color 180ms var(--ease), border-color 180ms var(--ease);
}

.page-contact .prep-item__box:checked {
  background: var(--gold-600);
  border-color: var(--gold-600);
}

.page-contact .prep-item__box:checked::after {
  content: "";
  position: absolute;
  left: 6px;
  top: 2px;
  width: 5px;
  height: 10px;
  border-right: 2px solid var(--deep-950);
  border-bottom: 2px solid var(--deep-950);
  transform: rotate(42deg);
}

.page-contact .prep-item__box:focus-visible {
  outline: 2px solid var(--gold-600);
  outline-offset: 2px;
}

.page-contact .prep-item__index {
  padding-top: 3px;
  color: var(--gold-600);
  letter-spacing: 0.08em;
}

.page-contact .prep-item__text {
  font-size: 1rem;
  line-height: 1.8;
  color: var(--ink-900);
}

.page-contact .prep-item__text strong {
  font-family: var(--font-display);
  font-weight: 600;
  margin-right: 6px;
}

.page-contact .contact-prep__figure {
  margin: 0;
}

/* ---- 渠道用途边界 ---- */

.page-contact .contact-scope {
  padding-block: clamp(40px, 5.5vw, 84px);
}

.page-contact .contact-scope__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(28px, 3.5vw, 56px);
}

.page-contact .contact-scope__title {
  color: var(--ivory-050);
}

.page-contact .contact-scope__body {
  max-width: 36ch;
  margin-top: 18px;
  font-size: var(--body-fluid);
  line-height: 1.85;
  color: rgba(244, 239, 228, 0.72);
}

.page-contact .contact-scope__cols {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(20px, 2.4vw, 32px);
}

.page-contact .contact-scope__col {
  padding: clamp(20px, 2.4vw, 28px);
  border: 1px solid var(--pc-line);
  background: rgba(6, 18, 15, 0.55);
  clip-path: polygon(0 0, calc(100% - 14px) 0, 100% 14px, 100% 100%, 14px 100%, 0 calc(100% - 14px));
}

.page-contact .contact-scope__col--no {
  border-color: rgba(192, 57, 43, 0.42);
}

.page-contact .contact-scope__col-title {
  display: flex;
  align-items: center;
  gap: 9px;
  margin: 0 0 16px;
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 1.06rem;
  color: var(--gold-300);
}

.page-contact .contact-scope__col--no .contact-scope__col-title {
  color: rgba(244, 239, 228, 0.86);
}

.page-contact .contact-scope__bullet {
  width: 9px;
  height: 9px;
  flex: none;
  background: var(--green-400);
  transform: rotate(45deg);
}

.page-contact .contact-scope__col--no .contact-scope__bullet {
  background: var(--red-600);
}

.page-contact .contact-scope__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-contact .contact-scope__list li {
  position: relative;
  padding-left: 18px;
  font-size: 0.94rem;
  line-height: 1.75;
  color: rgba(244, 239, 228, 0.74);
}

.page-contact .contact-scope__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.72em;
  width: 8px;
  height: 1px;
  background: var(--gold-600);
}

/* ---- 备案与服务地区 ---- */

.page-contact .contact-filing {
  padding-block: clamp(32px, 4vw, 56px);
}

.page-contact .contact-filing__bar {
  border-top: 1px solid var(--pc-line);
  border-bottom: 1px solid var(--pc-line);
  padding-block: clamp(20px, 2.6vw, 32px);
}

.page-contact .contact-filing__label {
  margin: 0 0 18px;
  color: var(--gold-600);
  letter-spacing: 0.12em;
}

.page-contact .contact-filing__ledger {
  margin: 0;
}

.page-contact .contact-filing__ledger .ledger__label {
  color: rgba(244, 239, 228, 0.62);
}

.page-contact .contact-filing__ledger .ledger__value {
  color: var(--ivory-050);
}

.page-contact .contact-filing__ledger .ledger__value--text {
  font-family: var(--font-body);
  font-size: 0.94rem;
  line-height: 1.7;
  color: rgba(244, 239, 228, 0.78);
  max-width: 52ch;
}

/* ---- 提交方式 ---- */

.page-contact .contact-submit {
  padding-block: clamp(40px, 5.5vw, 84px);
}

.page-contact .contact-submit__inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(28px, 3.5vw, 52px);
  align-items: start;
}

.page-contact .contact-submit__body {
  max-width: 42ch;
  margin-top: 18px;
  font-size: var(--body-fluid);
  line-height: 1.85;
  color: var(--ink-900);
}

.page-contact .contact-submit__example {
  display: grid;
  gap: 8px;
  margin: 24px 0 0;
  padding: 16px 18px;
  border-left: 3px solid var(--red-600);
  background: rgba(18, 59, 47, 0.06);
}

.page-contact .contact-submit__example-label {
  color: var(--sage-500);
  letter-spacing: 0.1em;
}

.page-contact .contact-submit__example-text {
  font-size: 0.96rem;
  letter-spacing: 0.04em;
  color: var(--ink-900);
  word-break: break-word;
}

.page-contact .contact-submit__aside {
  padding: clamp(20px, 2.4vw, 28px);
  border: 1px solid var(--pc-line-soft);
  clip-path: polygon(0 0, calc(100% - 14px) 0, 100% 14px, 100% 100%, 14px 100%, 0 calc(100% - 14px));
  background: rgba(244, 239, 228, 0.6);
}

.page-contact .contact-submit__aside-title {
  margin: 0 0 16px;
  color: var(--gold-600);
  letter-spacing: 0.12em;
}

.page-contact .contact-submit__links {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 2px;
}

.page-contact .contact-submit__link {
  display: block;
  padding: 11px 0;
  border-bottom: 1px solid var(--pc-line-soft);
  color: var(--ink-700);
  font-size: 0.95rem;
  line-height: 1.6;
  text-decoration: none;
  transition: color 200ms var(--ease), padding-left 200ms var(--ease);
}

.page-contact .contact-submit__links li:last-child .contact-submit__link {
  border-bottom: none;
}

.page-contact .contact-submit__link:hover,
.page-contact .contact-submit__link:focus-visible {
  color: var(--gold-600);
  padding-left: 8px;
}

/* ---- 锚点偏移 ---- */

.page-contact #prep,
.page-contact #filing {
  scroll-margin-top: 96px;
}

/* ---- 响应式 ---- */

@media (min-width: 720px) {
  .page-contact .contact-scope__cols {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-contact .contact-submit__inner {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
  }
}

@media (min-width: 900px) {
  .page-contact .contact-hero__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
  }

  .page-contact .contact-channels__grid {
    grid-template-columns: minmax(0, 1.7fr) minmax(0, 1fr) minmax(0, 1.2fr);
    align-items: stretch;
  }

  .page-contact .contact-prep__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
  }

  .page-contact .contact-scope__grid {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
  }
}

@media (max-width: 719px) {
  .page-contact .contact-hero__title {
    font-size: clamp(1.85rem, 7.6vw, 2.5rem);
  }

  .page-contact .contact-card__value--tel {
    font-size: clamp(1.25rem, 6.4vw, 1.6rem);
    letter-spacing: 0.07em;
  }

  .page-contact .prep-item__label {
    grid-template-columns: auto 1fr;
  }

  .page-contact .prep-item__index {
    grid-column: 2;
    padding-top: 0;
  }

  .page-contact .prep-item__text {
    grid-column: 2;
  }

  .page-contact .contact-card__foot {
    flex-direction: column;
    align-items: flex-start;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .contact-card,
  .page-contact .contact-card__value,
  .page-contact .contact-card__note,
  .page-contact .prep-item__box,
  .page-contact .contact-submit__link {
    transition: none;
  }

  .page-contact .contact-card:hover,
  .page-contact .contact-card:focus-within {
    transform: none;
  }
}