.page-contact {
  --pc-glass: rgba(242, 245, 248, 0.07);
  --pc-glass-strong: rgba(242, 245, 248, 0.13);
  --pc-edge: rgba(142, 151, 163, 0.34);
  --pc-panel: rgba(20, 44, 78, 0.55);
  --pc-body: rgba(242, 245, 248, 0.84);
}

.page-contact .breadcrumb {
  padding-top: 26px;
  font-family: var(--f-mono);
  font-size: var(--fs-13);
  letter-spacing: 0.06em;
  color: var(--rock);
}

.page-contact .breadcrumb a {
  color: var(--rock);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color var(--t-fast), border-color var(--t-fast);
}

.page-contact .breadcrumb a:hover,
.page-contact .breadcrumb a:focus-visible {
  color: var(--gold);
  border-bottom-color: var(--gold);
}

/* ---------- 首屏 ---------- */

.page-contact .contact-hero {
  position: relative;
  overflow: hidden;
}

.page-contact .contact-hero::after {
  content: "";
  position: absolute;
  top: -14%;
  right: -22%;
  width: 72%;
  height: 152%;
  background-image: repeating-linear-gradient(
    112deg,
    rgba(142, 151, 163, 0.13) 0,
    rgba(142, 151, 163, 0.13) 1px,
    transparent 1px,
    transparent 58px
  );
  -webkit-mask-image: linear-gradient(205deg, #000 0%, transparent 66%);
  mask-image: linear-gradient(205deg, #000 0%, transparent 66%);
  pointer-events: none;
}

.page-contact .contact-hero__grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 34px;
  align-items: end;
}

.page-contact .contact-hero__title {
  margin: 16px 0 0;
  font-family: var(--f-display);
  font-weight: 800;
  font-size: var(--fs-32);
  line-height: 1.24;
  letter-spacing: 0.025em;
  color: var(--snow);
  max-width: 22ch;
}

.page-contact .contact-hero__lead {
  margin: 20px 0 0;
  max-width: 48ch;
  font-size: var(--fs-16);
  line-height: 1.78;
  color: var(--pc-body);
}

.page-contact .contact-hero__cta {
  margin-top: 28px;
}

.page-contact .contact-hero__media {
  border: 1px solid var(--pc-edge);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--deep);
}

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

/* ---------- 主体两栏 ---------- */

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

.page-contact .contact-body__main {
  display: flex;
  flex-direction: column;
  gap: 60px;
  min-width: 0;
}

/* 联系卡片 */

.page-contact .contact-card {
  position: relative;
  padding: 30px 24px 32px;
  border: 1px solid var(--pc-edge);
  border-radius: var(--radius);
  background: linear-gradient(158deg, var(--pc-glass-strong), var(--pc-glass));
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
  overflow: hidden;
}

.page-contact .contact-card::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 4px;
  background: linear-gradient(
    90deg,
    var(--gold) 0 26%,
    var(--orange) 26% 50%,
    var(--pulu) 50% 68%,
    var(--moss) 68% 85%,
    var(--clay) 85% 100%
  );
}

.page-contact .contact-card__title {
  margin: 4px 0 0;
  font-family: var(--f-display);
  font-weight: 700;
  font-size: var(--fs-24);
  letter-spacing: 0.03em;
  color: var(--snow);
}

.page-contact .contact-card__row {
  margin-top: 26px;
  padding-top: 24px;
  border-top: 1px solid var(--line);
}

.page-contact .contact-card__row:first-of-type {
  border-top: 0;
  margin-top: 22px;
  padding-top: 0;
}

.page-contact .contact-card__label {
  display: block;
  margin-bottom: 10px;
  font-family: var(--f-mono);
  font-size: var(--fs-13);
  letter-spacing: 0.14em;
  color: var(--rock);
}

.page-contact .contact-card__value {
  display: inline-block;
  min-height: 44px;
  padding-bottom: 2px;
  font-family: var(--f-mono);
  font-size: var(--fs-18);
  font-weight: 600;
  letter-spacing: 0.02em;
  line-height: 1.4;
  color: var(--snow);
  text-decoration: none;
  overflow-wrap: anywhere;
  border-bottom: 1px solid transparent;
  transition: color var(--t-fast), border-color var(--t-fast);
}

.page-contact a.contact-card__value:hover,
.page-contact a.contact-card__value:focus-visible {
  color: var(--gold);
  border-bottom-color: var(--gold);
}

.page-contact .contact-card__value--plain {
  cursor: default;
}

.page-contact .contact-card__desc {
  margin: 10px 0 0;
  font-size: var(--fs-14);
  line-height: 1.7;
  color: var(--rock);
}

/* 沟通前置 */

.page-contact .contact-flow__title,
.page-contact .contact-partner__title,
.page-contact .contact-meta__title,
.page-contact .contact-more__title {
  margin: 14px 0 0;
  font-family: var(--f-display);
  font-weight: 700;
  font-size: var(--fs-24);
  line-height: 1.35;
  letter-spacing: 0.03em;
  color: var(--snow);
}

.page-contact .contact-flow__lead,
.page-contact .contact-partner__lead {
  margin: 16px 0 0;
  max-width: 54ch;
  font-size: var(--fs-16);
  line-height: 1.78;
  color: var(--pc-body);
}

.page-contact .contact-flow__media {
  margin: 28px 0 0;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--deep);
}

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

.page-contact .contact-flow__panel {
  margin-top: 24px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--pc-panel);
}

.page-contact .contact-flow__summary {
  display: flex;
  align-items: center;
  min-height: 44px;
  padding: 18px 20px;
  font-family: var(--f-mono);
  font-size: var(--fs-13);
  letter-spacing: 0.12em;
  color: var(--gold);
  cursor: pointer;
  list-style: none;
  transition: color var(--t-fast);
}

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

.page-contact .contact-flow__summary::before {
  content: "＋";
  display: inline-block;
  margin-right: 12px;
  color: var(--orange);
  letter-spacing: 0;
}

.page-contact .contact-flow__panel[open] .contact-flow__summary::before {
  content: "－";
}

.page-contact .contact-flow__summary:hover,
.page-contact .contact-flow__summary:focus-visible {
  color: var(--snow);
}

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

.page-contact .contact-flow__item {
  display: grid;
  grid-template-columns: 2.4rem minmax(0, 1fr);
  gap: 14px;
  padding: 20px;
  border-bottom: 1px solid var(--line);
}

.page-contact .contact-flow__item:last-child {
  border-bottom: 0;
}

.page-contact .contact-flow__num {
  font-size: var(--fs-14);
  letter-spacing: 0.08em;
  color: var(--orange);
  padding-top: 2px;
}

.page-contact .contact-flow__label {
  margin: 0;
  font-family: var(--f-display);
  font-weight: 700;
  font-size: var(--fs-18);
  line-height: 1.4;
  color: var(--snow);
}

.page-contact .contact-flow__text {
  margin: 8px 0 0;
  font-size: var(--fs-16);
  line-height: 1.75;
  color: var(--rock);
}

/* 合作洽谈 */

.page-contact .contact-partner {
  padding-top: 34px;
  border-top: 1px solid rgba(227, 169, 60, 0.55);
}

.page-contact .contact-partner__tracks {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 20px;
  margin-top: 28px;
}

.page-contact .contact-partner__track {
  padding: 24px 22px;
  border: 1px solid var(--line);
  border-left: 2px solid var(--gold);
  border-radius: var(--radius);
  background: var(--pc-panel);
}

.page-contact .contact-partner__track-title {
  margin: 0;
  font-family: var(--f-mono);
  font-size: var(--fs-14);
  letter-spacing: 0.14em;
  color: var(--gold);
}

.page-contact .contact-partner__track-text {
  margin: 12px 0 0;
  font-size: var(--fs-16);
  line-height: 1.76;
  color: var(--pc-body);
}

.page-contact .contact-partner__foot {
  margin: 24px 0 0;
  font-size: var(--fs-14);
  line-height: 1.75;
  color: var(--rock);
}

.page-contact .contact-partner__foot a {
  color: var(--gold);
  text-decoration: none;
  border-bottom: 1px solid rgba(227, 169, 60, 0.45);
  transition: border-color var(--t-fast), color var(--t-fast);
}

.page-contact .contact-partner__foot a:hover,
.page-contact .contact-partner__foot a:focus-visible {
  color: var(--snow);
  border-bottom-color: var(--snow);
}

/* 运营与备案 */

.page-contact .contact-meta__list {
  margin: 26px 0 0;
  border-top: 1px solid var(--line);
}

.page-contact .contact-meta__item {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 6px;
  padding: 18px 0;
  border-bottom: 1px solid var(--line);
}

.page-contact .contact-meta__item dt {
  font-family: var(--f-mono);
  font-size: var(--fs-13);
  letter-spacing: 0.12em;
  color: var(--rock);
}

.page-contact .contact-meta__item dd {
  margin: 0;
  font-size: var(--fs-16);
  line-height: 1.76;
  color: var(--pc-body);
}

/* 底部指向 */

.page-contact .contact-more__inner {
  padding-top: 36px;
  border-top: 1px solid var(--line-strong);
}

.page-contact .contact-more__list {
  margin: 24px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 0;
}

.page-contact .contact-more__list li {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 4px 16px;
  padding: 16px 0;
  border-bottom: 1px solid var(--line);
}

.page-contact .contact-more__list a {
  min-height: 24px;
  font-family: var(--f-display);
  font-weight: 700;
  font-size: var(--fs-18);
  color: var(--snow);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color var(--t-fast), border-color var(--t-fast);
}

.page-contact .contact-more__list a:hover,
.page-contact .contact-more__list a:focus-visible {
  color: var(--gold);
  border-bottom-color: var(--gold);
}

.page-contact .contact-more__list span {
  font-size: var(--fs-14);
  line-height: 1.7;
  color: var(--rock);
}

/* ---------- 交互反馈 ---------- */

.page-contact a:focus-visible,
.page-contact summary:focus-visible,
.page-contact .btn:focus-visible {
  outline: 2px solid var(--orange);
  outline-offset: 2px;
}

/* ---------- 断点 ---------- */

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

  .page-contact .contact-meta__item {
    grid-template-columns: 168px minmax(0, 1fr);
    gap: 24px;
    align-items: baseline;
  }

  .page-contact .contact-more__list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    column-gap: 48px;
  }
}

@media (min-width: 980px) {
  .page-contact .contact-hero__grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 0.88fr);
    gap: 56px;
  }

  .page-contact .contact-hero__title {
    font-size: var(--fs-56);
  }

  .page-contact .contact-flow__title,
  .page-contact .contact-partner__title,
  .page-contact .contact-meta__title,
  .page-contact .contact-more__title {
    font-size: var(--fs-32);
  }

  .page-contact .contact-body__grid {
    grid-template-columns: minmax(0, 352px) minmax(0, 1fr);
    gap: 64px;
    align-items: start;
  }

  .page-contact .contact-card {
    position: sticky;
    top: calc(var(--header-h) + 28px);
    padding: 34px 28px 36px;
  }

  .page-contact .contact-card__value {
    font-size: var(--fs-24);
  }

  .page-contact .contact-body__main {
    gap: 76px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact *,
  .page-contact *::before,
  .page-contact *::after {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
  }
}