/* ===== 联络与咨询 · 资料馆前台版式 ===== */
.page-contact {
  --contact-line: 1px solid rgba(46, 74, 125, .55);
  --contact-card: #131A2C;
  display: block;
  background:
    radial-gradient(120% 68% at 100% 0%, rgba(46, 74, 125, .30) 0%, transparent 58%),
    radial-gradient(90% 55% at 0% 100%, rgba(42, 58, 31, .40) 0%, transparent 62%),
    var(--ink-900);
  color: var(--paper);
  padding-bottom: clamp(3rem, 8vw, 6rem);
}

.page-contact .wrap {
  width: min(100% - (2 * var(--gutter)), 1180px);
  margin-inline: auto;
}

.page-contact .section {
  padding-block: clamp(2.2rem, 6vw, 4rem);
}

/* ---------- 面包屑 ---------- */
.page-contact .crumbs {
  padding-top: clamp(1.1rem, 3vw, 1.9rem);
}

.page-contact .crumbs__list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: .4rem;
  margin: 0;
  padding: 0;
  list-style: none;
  font-family: var(--font-mono);
  font-size: .7rem;
  font-weight: 700;
  letter-spacing: .12em;
  text-transform: uppercase;
}

.page-contact .crumbs__item {
  display: inline-flex;
  align-items: center;
  gap: .4rem;
}

.page-contact .crumbs__item + .crumbs__item::before {
  content: "/";
  color: var(--steel);
}

.page-contact .crumbs__link {
  color: var(--mist);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  padding-bottom: 1px;
  transition: color .18s var(--ease), border-color .18s var(--ease);
}

.page-contact .crumbs__link:hover,
.page-contact .crumbs__link:focus-visible {
  color: var(--lime);
  border-bottom-color: var(--lime-line);
}

.page-contact .crumbs__link[aria-current="page"] {
  color: var(--paper);
  border-bottom-color: var(--cyan);
}

/* ---------- 首屏文字 ---------- */
.page-contact .contact-head {
  padding-top: clamp(1.4rem, 4vw, 2.6rem);
}

.page-contact .contact-head h1 {
  margin: .55rem 0 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(2rem, 6.2vw, 3.7rem);
  line-height: 1.02;
  letter-spacing: -.015em;
  max-width: 20ch;
}

.page-contact .lede {
  margin: 1.15rem 0 0;
  max-width: 58ch;
  font-size: clamp(1rem, 1.5vw, 1.1rem);
  line-height: 1.78;
  color: rgba(244, 241, 232, .82);
}

.page-contact .contact-head__tags {
  display: flex;
  flex-wrap: wrap;
  gap: .5rem;
  margin: 1.3rem 0 0;
  padding: 0;
  list-style: none;
}

/* ---------- 首图 ---------- */
.page-contact .contact-hero {
  position: relative;
  margin: clamp(1.8rem, 4.5vw, 3rem) 0 0;
  aspect-ratio: 16 / 9;
  background: var(--ink-800);
  overflow: hidden;
  clip-path: polygon(0 0, calc(100% - 34px) 0, 100% 34px, 100% 100%, 0 100%);
  box-shadow: inset 0 0 0 1px rgba(46, 74, 125, .55);
}

.page-contact .contact-hero img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(.82) contrast(1.06) brightness(.9);
}

.page-contact .contact-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(11, 18, 48, .10) 0%, rgba(11, 18, 48, .82) 100%);
  pointer-events: none;
}

.page-contact .contact-hero__cap {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 1;
  padding: .85rem clamp(1rem, 3vw, 1.6rem);
  font-family: var(--font-mono);
  font-size: .7rem;
  letter-spacing: .06em;
  line-height: 1.6;
  color: rgba(244, 241, 232, .84);
}

/* ---------- 客服台 ---------- */
.page-contact .contact-desk__intro {
  margin-bottom: clamp(1.2rem, 3vw, 1.9rem);
}

.page-contact .contact-desk__intro h2,
.page-contact .contact-venue__card h2,
.page-contact .contact-collab__head h2,
.page-contact .contact-before__intro h2 {
  margin: .45rem 0 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.5rem, 3.8vw, 2.3rem);
  line-height: 1.12;
  letter-spacing: -.01em;
  max-width: 24ch;
}

.page-contact .contact-desk__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(1rem, 3vw, 1.6rem);
}

/* 超大等宽联系栏 */
.page-contact .desk-lines {
  display: grid;
  gap: 1px;
  background: rgba(46, 74, 125, .55);
  box-shadow: inset 0 0 0 1px rgba(46, 74, 125, .55);
  min-width: 0;
}

.page-contact .desk-line {
  display: grid;
  gap: .38rem;
  padding: clamp(1.1rem, 3vw, 1.9rem) clamp(1rem, 2.6vw, 2rem);
  background: var(--contact-card);
  border-left: 3px solid transparent;
  text-decoration: none;
  color: inherit;
  min-width: 0;
  transition: background .2s var(--ease), border-color .2s var(--ease);
}

.page-contact .desk-line:hover,
.page-contact .desk-line:focus-visible {
  background: #17213C;
  border-left-color: var(--lime);
}

.page-contact .desk-line__label {
  font-family: var(--font-mono);
  font-size: .68rem;
  font-weight: 700;
  letter-spacing: .15em;
  text-transform: uppercase;
  color: var(--mist);
}

.page-contact .desk-line__value {
  font-family: var(--font-mono);
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  font-size: clamp(1.1rem, 3.6vw, 2.5rem);
  line-height: 1.12;
  color: var(--lime);
  overflow-wrap: anywhere;
}

.page-contact .desk-line__hint {
  font-size: .86rem;
  line-height: 1.65;
  color: rgba(244, 241, 232, .66);
}

/* 右侧受理范围 */
.page-contact .desk-side {
  display: grid;
  gap: .95rem;
  align-content: start;
  padding: clamp(1.2rem, 3.2vw, 1.9rem);
  background: linear-gradient(180deg, rgba(42, 58, 31, .62) 0%, rgba(19, 26, 44, .95) 100%);
  box-shadow: inset 0 0 0 1px rgba(46, 74, 125, .6);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 30px), calc(100% - 30px) 100%, 0 100%);
  min-width: 0;
}

.page-contact .desk-side__title {
  margin: 0;
  font-family: var(--font-mono);
  font-size: .72rem;
  font-weight: 700;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--lime);
}

.page-contact .desk-side__list {
  display: grid;
  gap: .55rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-contact .desk-side__list li {
  position: relative;
  padding-left: 1.1rem;
  font-size: .92rem;
  line-height: 1.65;
  color: rgba(244, 241, 232, .88);
}

.page-contact .desk-side__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .62em;
  width: .55rem;
  height: 2px;
  background: var(--lime);
}

.page-contact .desk-side__window {
  display: inline-flex;
  align-items: center;
  gap: .55rem;
  margin: 0;
  justify-self: start;
  padding: .5rem .9rem;
  border: 1px solid rgba(255, 122, 61, .55);
  background: var(--orange-soft);
  color: var(--orange);
  font-family: var(--font-mono);
  font-size: .76rem;
  font-weight: 700;
  letter-spacing: .05em;
}

.page-contact .desk-side__note {
  margin: 0;
  font-size: .8rem;
  line-height: 1.7;
  color: var(--mist);
}

/* ---------- 资料馆地址 ---------- */
.page-contact .contact-venue__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(1rem, 3vw, 1.8rem);
  align-items: stretch;
}

.page-contact .contact-venue__card {
  display: grid;
  gap: .9rem;
  align-content: start;
  padding: clamp(1.4rem, 3.6vw, 2.4rem);
  background: var(--ink-800);
  box-shadow: inset 0 0 0 1px rgba(46, 74, 125, .55);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 34px), calc(100% - 34px) 100%, 0 100%);
}

.page-contact .contact-venue__address {
  margin: 0;
  font-family: var(--font-display);
  font-style: normal;
  font-weight: 800;
  font-size: clamp(1.3rem, 3.4vw, 2rem);
  line-height: 1.28;
  color: var(--paper);
  max-width: 20ch;
}

.page-contact .contact-venue__note {
  margin: 0;
  font-size: .92rem;
  line-height: 1.78;
  color: rgba(244, 241, 232, .76);
  max-width: 46ch;
}

.page-contact .contact-venue__facts {
  display: grid;
  gap: .45rem;
  margin: .3rem 0 0;
  padding: 0;
  list-style: none;
  font-size: .86rem;
  line-height: 1.6;
  color: var(--mist);
}

.page-contact .contact-venue__facts .mono {
  color: var(--lime);
  font-weight: 700;
  margin-right: .3rem;
}

.page-contact .contact-venue__figure {
  position: relative;
  margin: 0;
  aspect-ratio: 4 / 3;
  overflow: hidden;
  background: var(--ink-800);
  box-shadow: inset 0 0 0 1px rgba(46, 74, 125, .55);
}

.page-contact .contact-venue__figure img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(.85) contrast(1.05) brightness(.92);
}

.page-contact .contact-venue__figure figcaption {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  padding: .8rem 1rem;
  background: linear-gradient(180deg, rgba(11, 18, 48, 0) 0%, rgba(11, 18, 48, .92) 100%);
  font-family: var(--font-mono);
  font-size: .7rem;
  letter-spacing: .06em;
  line-height: 1.6;
  color: rgba(244, 241, 232, .85);
}

/* ---------- 合作与内容提交 ---------- */
.page-contact .contact-collab__head {
  max-width: 62ch;
  margin-bottom: clamp(1.3rem, 3.4vw, 2rem);
}

.page-contact .contact-collab__lede {
  margin: 1rem 0 0;
  font-size: .96rem;
  line-height: 1.78;
  color: rgba(244, 241, 232, .76);
}

.page-contact .collab-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(.9rem, 2.6vw, 1.4rem);
}

.page-contact .collab-card {
  position: relative;
  display: grid;
  gap: .7rem;
  align-content: start;
  padding: clamp(1.2rem, 3.2vw, 1.8rem);
  background: var(--ink-700);
  border-top: 2px solid var(--steel);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 22px), calc(100% - 22px) 100%, 0 100%);
  transition: border-color .2s var(--ease), background .2s var(--ease);
}

.page-contact .collab-card:hover {
  border-top-color: var(--lime);
  background: #1A2338;
}

.page-contact .collab-card__num {
  font-family: var(--font-mono);
  font-size: 1.6rem;
  font-weight: 700;
  line-height: 1;
  color: rgba(198, 255, 61, .32);
}

.page-contact .collab-card__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.22rem;
  line-height: 1.2;
  color: var(--paper);
}

.page-contact .collab-card__text {
  margin: 0;
  font-size: .9rem;
  line-height: 1.75;
  color: rgba(244, 241, 232, .76);
}

.page-contact .collab-card__meta {
  margin: .2rem 0 0;
  padding-top: .7rem;
  border-top: 1px dashed rgba(46, 74, 125, .8);
  font-family: var(--font-mono);
  font-size: .7rem;
  letter-spacing: .05em;
  line-height: 1.6;
  color: var(--orange);
}

/* ---------- 先看一眼 ---------- */
.page-contact .contact-before__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(1.2rem, 3.4vw, 2.4rem);
  align-items: start;
}

.page-contact .contact-before__text {
  margin: 1rem 0 0;
  font-size: .94rem;
  line-height: 1.78;
  color: rgba(244, 241, 232, .74);
  max-width: 44ch;
}

.page-contact .before-list {
  display: grid;
  gap: 1px;
  margin: 0;
  padding: 0;
  list-style: none;
  background: rgba(46, 74, 125, .55);
  box-shadow: inset 0 0 0 1px rgba(46, 74, 125, .55);
}

.page-contact .before-list li {
  background: var(--contact-card);
  min-width: 0;
}

.page-contact .before-item {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  gap: .9rem;
  align-items: baseline;
  padding: clamp(.9rem, 2.4vw, 1.25rem) clamp(1rem, 2.4vw, 1.5rem);
  text-decoration: none;
  color: var(--paper);
  transition: background .2s var(--ease);
}

.page-contact .before-item:hover,
.page-contact .before-item:focus-visible {
  background: rgba(198, 255, 61, .08);
}

.page-contact .before-item__num {
  font-family: var(--font-mono);
  font-size: .74rem;
  font-weight: 700;
  color: var(--lime);
}

.page-contact .before-item__body {
  display: grid;
  gap: .25rem;
  min-width: 0;
}

.page-contact .before-item__title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.06rem;
  line-height: 1.3;
}

.page-contact .before-item__desc {
  font-size: .85rem;
  line-height: 1.68;
  color: rgba(244, 241, 232, .68);
}

.page-contact .before-item__arrow {
  font-family: var(--font-mono);
  font-size: .95rem;
  color: var(--mist);
  transition: color .2s var(--ease), transform .2s var(--ease);
}

.page-contact .before-item:hover .before-item__arrow,
.page-contact .before-item:focus-visible .before-item__arrow {
  color: var(--cyan);
  transform: translateX(3px);
}

/* ---------- 响应式 ---------- */
@media (max-width: 420px) {
  .page-contact .desk-line__hint {
    font-size: .8rem;
  }

  .page-contact .before-item {
    grid-template-columns: auto minmax(0, 1fr);
  }

  .page-contact .before-item__arrow {
    display: none;
  }
}

@media (min-width: 760px) {
  .page-contact .contact-venue__figure {
    aspect-ratio: 2 / 1;
  }
}

@media (min-width: 900px) {
  .page-contact .contact-desk__grid {
    grid-template-columns: minmax(0, 1.55fr) minmax(0, .95fr);
    gap: clamp(1.2rem, 2.6vw, 2rem);
    align-items: start;
  }

  .page-contact .contact-venue__grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr);
    gap: clamp(1.4rem, 3.4vw, 2.6rem);
  }

  .page-contact .contact-venue__figure {
    aspect-ratio: auto;
    min-height: 100%;
  }

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

  .page-contact .contact-before__grid {
    grid-template-columns: minmax(0, .82fr) minmax(0, 1.18fr);
    gap: clamp(1.6rem, 4vw, 3rem);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .desk-line,
  .page-contact .collab-card,
  .page-contact .before-item,
  .page-contact .before-item__arrow,
  .page-contact .crumbs__link {
    transition: none;
  }
}