.page-contact {
  --copper-deep: #8A5A1E;
  --copper-soft-line: rgba(192, 138, 62, 0.28);
}

/* ---------- 首屏 ---------- */

.page-contact .contact-hero {
  padding-block: 32px 40px;
}

.page-contact .contact-hero__eyebrow {
  margin: 22px 0 12px;
  color: var(--copper);
}

.page-contact .contact-hero h1 {
  margin: 0 0 18px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.9rem, 7vw, 3.4rem);
  line-height: 1.16;
  letter-spacing: -0.01em;
  color: var(--white);
}

.page-contact .contact-hero__lead {
  margin: 0;
  max-width: 40em;
  font-size: 16px;
  line-height: 1.85;
  color: var(--text-body);
}

/* ---------- 侧边索引 ---------- */

.page-contact .contact-rail {
  display: none;
}

/* ---------- 联络卡 ---------- */

.page-contact .ccard-zone {
  padding-bottom: 56px;
}

.page-contact .ccard-grid {
  display: grid;
  gap: 22px;
}

.page-contact .ccard {
  position: relative;
  display: flex;
  flex-direction: column;
  padding: 24px 20px 22px;
  background:
    radial-gradient(120% 90% at 0% 0%, rgba(240, 217, 168, 0.09), transparent 55%),
    var(--ink-soft);
  border: 1px solid var(--line-dark-strong);
}

.page-contact .ccard::before {
  content: "";
  position: absolute;
  top: -1px;
  bottom: -1px;
  left: -1px;
  width: 3px;
  background: var(--copper);
}

.page-contact .ccard__head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--line-dark);
}

.page-contact .ccard__title {
  margin: 0;
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 600;
  letter-spacing: 0.01em;
  color: var(--white);
}

.page-contact .ccard__fields {
  margin: 0;
  padding: 0;
}

.page-contact .ccard__field {
  padding: 20px 0;
  border-bottom: 1px solid var(--line-dark);
}

.page-contact .ccard__field:last-child {
  border-bottom: 0;
  padding-bottom: 4px;
}

.page-contact .ccard__key {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--graphite);
}

.page-contact .ccard__val {
  margin: 0;
  font-family: var(--font-mono);
  font-size: clamp(0.95rem, 4.4vw, 1.3rem);
  line-height: 1.45;
  letter-spacing: 0.01em;
  color: var(--white);
  overflow-wrap: anywhere;
}

.page-contact .ccard__hint {
  display: block;
  margin-top: 8px;
  font-family: var(--font-body);
  font-size: 13.5px;
  line-height: 1.7;
  letter-spacing: 0;
  color: var(--graphite);
  transition: color var(--dur) var(--ease);
}

.page-contact .ccard__foot {
  margin: 16px 0 0;
  padding-top: 16px;
  border-top: 1px solid var(--line-dark);
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--text-dim);
}

.page-contact .ccard-photo {
  margin: 0;
  display: flex;
  flex-direction: column;
  border: 1px solid var(--line-dark);
  background: var(--ink-soft);
}

.page-contact .ccard-photo img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 10 / 7;
  object-fit: cover;
}

.page-contact .ccard-photo figcaption {
  padding: 12px 14px;
  border-top: 1px solid var(--line-dark);
  font-size: 12.5px;
  line-height: 1.65;
  color: var(--graphite);
}

/* ---------- 来函准备 ---------- */

.page-contact .prep {
  padding-block: 56px;
  border-top: 1px solid var(--line-dark);
}

.page-contact .prep .filter-bar {
  margin-top: 26px;
}

.page-contact .prep__list {
  list-style: none;
  margin: 24px 0 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-contact .prep__item {
  display: grid;
  grid-template-columns: 38px minmax(0, 1fr);
  grid-template-rows: auto auto;
  column-gap: 14px;
  row-gap: 6px;
  align-items: start;
  padding: 20px 18px;
  background: rgba(20, 24, 29, 0.62);
  border: 1px solid var(--line-dark);
  border-left: 2px solid var(--copper);
}

.page-contact .prep__num {
  grid-area: 1 / 1 / 2 / 2;
  padding-top: 4px;
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--copper);
}

.page-contact .prep__title {
  grid-area: 1 / 2 / 2 / 3;
  margin: 0;
  font-family: var(--font-display);
  font-size: 1.02rem;
  font-weight: 600;
  line-height: 1.5;
  color: var(--white);
}

.page-contact .prep__text {
  grid-area: 2 / 2 / 3 / 3;
  margin: 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--text-dim);
}

/* ---------- 资料收件地 ---------- */

.page-contact .addr {
  padding-block: 56px 0;
  background: var(--paper);
  color: var(--ink);
}

.page-contact .addr__grid {
  display: grid;
  gap: 28px;
}

.page-contact .addr__label {
  display: block;
  margin: 0 0 14px;
  color: var(--copper-deep);
}

.page-contact .addr__title {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-size: clamp(1.45rem, 5vw, 2.3rem);
  font-weight: 700;
  line-height: 1.28;
  letter-spacing: -0.01em;
  color: var(--ink);
}

.page-contact .addr__sub {
  margin: 0 0 20px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.1em;
  color: var(--copper-deep);
}

.page-contact .addr__text {
  margin: 0 0 14px;
  max-width: 36em;
  font-size: 15.5px;
  line-height: 1.85;
  color: rgba(11, 13, 16, 0.78);
}

.page-contact .addr__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

.page-contact .addr-photo {
  margin: 0;
  border: 1px solid rgba(11, 13, 16, 0.16);
}

.page-contact .addr-photo img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
}

.page-contact .addr-photo figcaption {
  padding: 11px 14px;
  border-top: 1px solid rgba(11, 13, 16, 0.12);
  font-size: 12.5px;
  line-height: 1.65;
  color: rgba(11, 13, 16, 0.6);
}

.page-contact .addr-map {
  margin-top: 44px;
  color: var(--copper);
}

.page-contact .addr-map svg {
  display: block;
  width: 100%;
  height: 118px;
}

.page-contact .addr-map__grid path {
  fill: none;
  stroke: currentColor;
  stroke-width: 1;
  opacity: 0.4;
}

.page-contact .addr-map__artery {
  fill: none;
  stroke: currentColor;
  stroke-width: 2.5;
  opacity: 0.9;
}

.page-contact .addr-map__pin {
  fill: var(--cinnabar);
}

/* ---------- 回应时效 ---------- */

.page-contact .reply {
  padding-block: 60px;
}

.page-contact .reply__grid {
  display: grid;
  gap: 1px;
  margin-top: 28px;
  background: var(--line-dark);
  border: 1px solid var(--line-dark);
}

.page-contact .reply__cell {
  padding: 26px 22px;
  background: var(--ink);
}

.page-contact .reply__figure {
  margin: 0 0 8px;
  font-size: clamp(1.9rem, 7vw, 2.7rem);
  font-weight: 600;
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--copper-bright);
}

.page-contact .reply__figure span {
  margin-left: 6px;
  font-size: 0.4em;
  letter-spacing: 0.04em;
  color: var(--copper);
}

.page-contact .reply__label {
  margin: 0 0 12px;
  font-size: 12.5px;
  letter-spacing: 0.08em;
  color: var(--copper);
}

.page-contact .reply__text {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.82;
  color: var(--text-dim);
}

/* ---------- 常见问题导引 ---------- */

.page-contact .faq-band {
  padding-bottom: 4px;
}

.page-contact .faq-band__inner {
  display: grid;
  gap: 20px;
  padding: 28px 22px;
  background: rgba(192, 138, 62, 0.07);
  border: 1px solid var(--line-dark-strong);
  border-left-width: 3px;
}

.page-contact .faq-band__text h2 {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-size: clamp(1.25rem, 4vw, 1.7rem);
  font-weight: 600;
  line-height: 1.35;
  color: var(--white);
}

.page-contact .faq-band__text p {
  margin: 0;
  max-width: 40em;
  font-size: 14.5px;
  line-height: 1.82;
  color: var(--text-dim);
}

.page-contact .faq-band .btn {
  justify-self: start;
}

/* ---------- 收口 ---------- */

.page-contact .contact-close {
  height: 1px;
  margin-top: 60px;
  background: linear-gradient(90deg, var(--copper) 0%, rgba(192, 138, 62, 0.18) 62%, rgba(192, 138, 62, 0) 100%);
}

/* ---------- 悬停增强 ---------- */

@media (hover: hover) {
  .page-contact .ccard__field:hover .ccard__hint,
  .page-contact .ccard__field:focus-within .ccard__hint {
    color: var(--text-body);
  }

  .page-contact .prep__item {
    transition: border-color var(--dur) var(--ease), background-color var(--dur) var(--ease);
  }

  .page-contact .prep__item:hover {
    border-color: var(--line-dark-strong);
    border-left-color: var(--copper-bright);
    background: rgba(20, 24, 29, 0.9);
  }
}

/* ---------- 中等屏 ---------- */

@media (min-width: 720px) {
  .page-contact .reply__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-contact .faq-band__inner {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
    gap: 30px;
    padding: 30px 28px;
  }

  .page-contact .faq-band .btn {
    justify-self: end;
  }

  .page-contact .prep__item {
    grid-template-columns: 52px minmax(0, 1fr);
    padding: 24px 24px;
  }
}

/* ---------- 宽屏 ---------- */

@media (min-width: 880px) {
  .page-contact .contact-hero {
    padding-block: 48px 46px;
  }

  .page-contact .ccard-grid {
    grid-template-columns: minmax(0, 1.18fr) minmax(0, 0.82fr);
    gap: 28px;
    align-items: stretch;
  }

  .page-contact .ccard {
    padding: 28px 26px 24px;
  }

  .page-contact .ccard-photo img {
    flex: 1;
    height: 100%;
    aspect-ratio: auto;
  }

  .page-contact .addr__grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    gap: 44px;
    align-items: start;
  }

  .page-contact .addr-map svg {
    height: 150px;
  }
}

/* ---------- 超宽屏：右侧索引 ---------- */

@media (min-width: 1560px) {
  .page-contact .contact-rail {
    position: fixed;
    top: 50%;
    right: 28px;
    z-index: 20;
    display: flex;
    flex-direction: column;
    gap: 8px;
    padding: 14px 0 14px 16px;
    border-left: 1px solid var(--copper-soft-line);
    transform: translateY(-50%);
  }

  .page-contact .contact-rail__title {
    margin: 0 0 4px;
    color: var(--graphite);
  }

  .page-contact .contact-rail a {
    font-size: 12.5px;
    line-height: 1.5;
    color: var(--text-dim);
    text-decoration: none;
    transition: color var(--dur) var(--ease);
  }

  .page-contact .contact-rail a:hover,
  .page-contact .contact-rail a[data-active="true"] {
    color: var(--copper-bright);
  }
}