.page-contact {
  --c-rule: 1px solid var(--blueprint);
  --c-paper-ink-soft: rgba(58, 46, 37, .6);
  padding-top: var(--header-offset);
  background-color: var(--deep);
  background-image:
    linear-gradient(rgba(28, 58, 85, .3) 1px, transparent 1px),
    linear-gradient(90deg, rgba(28, 58, 85, .3) 1px, transparent 1px);
  background-size: var(--grid) var(--grid);
  color: var(--ink);
  font-family: var(--font-body);
}

.page-contact .idx-label {
  margin: 0;
}

/* ---------- 首屏 ---------- */

.page-contact .contact-mast {
  position: relative;
  padding: 42px 0 38px;
  border-bottom: 1px solid var(--blueprint);
  background:
    radial-gradient(130% 120% at 88% -10%, rgba(34, 230, 210, .12), transparent 62%),
    linear-gradient(180deg, rgba(10, 33, 56, .82), rgba(4, 18, 31, 0) 92%);
}

.page-contact .contact-mast::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -1px;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--cyan), transparent);
  opacity: .5;
}

.page-contact .contact-mast h1 {
  margin: 16px 0 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(30px, 7.4vw, 58px);
  line-height: 1.06;
  letter-spacing: -.02em;
}

.page-contact .contact-mast__lead {
  margin: 20px 0 0;
  max-width: 52ch;
  font-size: 16px;
  line-height: 1.85;
  color: var(--mute);
}

/* ---------- 面包屑 ---------- */

.page-contact .breadcrumb ol {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
  font-family: var(--font-data);
  font-size: 12px;
  letter-spacing: .04em;
  color: var(--mute);
}

.page-contact .breadcrumb li + li::before {
  content: "/";
  margin-right: 8px;
  color: var(--blueprint);
}

.page-contact .breadcrumb a {
  color: var(--cyan);
  text-decoration: none;
}

.page-contact .breadcrumb a:hover,
.page-contact .breadcrumb a:focus-visible {
  text-decoration: underline;
}

/* ---------- 主分栏 ---------- */

.page-contact .contact-split {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 34px;
  padding: 44px 0 64px;
}

.page-contact .contact-card {
  padding: 30px 24px 26px;
  border: 1px solid var(--paper-edge);
  color: var(--ink-paper);
  box-shadow: var(--shadow-paper), 10px 10px 0 rgba(217, 205, 184, .14);
}

.page-contact .contact-card__title {
  margin: 14px 0 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 25px;
  letter-spacing: -.01em;
  color: var(--ink-paper);
}

.page-contact .contact-fields {
  margin: 20px 0 0;
  padding: 0;
  border-top: 1px solid var(--paper-edge);
}

.page-contact .contact-field {
  padding: 15px 0;
  border-bottom: 1px solid var(--paper-edge);
}

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

.page-contact .contact-field dt {
  font-family: var(--font-data);
  font-size: 11px;
  letter-spacing: .14em;
  color: var(--c-paper-ink-soft);
}

.page-contact .contact-field dd {
  margin: 6px 0 0;
  font-size: 17px;
  line-height: 1.6;
  color: var(--ink-paper);
  overflow-wrap: anywhere;
}

.page-contact .contact-field--data dd {
  font-family: var(--font-data);
  font-size: 16px;
  letter-spacing: .015em;
}

.page-contact .contact-card__note {
  margin: 18px 0 0;
  padding-left: 12px;
  border-left: 2px solid var(--signal);
  font-size: 13px;
  line-height: 1.75;
  color: rgba(58, 46, 37, .78);
}

/* ---------- 右侧说明 ---------- */

.page-contact .contact-guide {
  min-width: 0;
}

.page-contact .contact-guide h2,
.page-contact .contact-coop h2,
.page-contact .contact-scope h2 {
  margin: 14px 0 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(24px, 4.6vw, 38px);
  line-height: 1.14;
  letter-spacing: -.015em;
}

.page-contact .contact-lead {
  margin: 18px 0 0;
  max-width: 60ch;
  font-size: 16px;
  line-height: 1.85;
  color: var(--mute);
}

/* ---------- 展开组 ---------- */

.page-contact .accordion-group {
  margin-top: 28px;
  border-top: var(--c-rule);
}

.page-contact .accordion {
  border-bottom: var(--c-rule);
}

.page-contact .accordion__head {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 17px 0;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 18px;
  color: var(--ink);
  transition: color 180ms var(--ease);
}

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

.page-contact .accordion__head:hover {
  color: var(--cyan);
}

.page-contact .accordion__head::after {
  content: "+";
  margin-left: auto;
  font-family: var(--font-data);
  font-size: 18px;
  line-height: 1;
  color: var(--cyan);
}

.page-contact .accordion[open] > .accordion__head::after {
  content: "\2013";
  color: var(--signal);
}

.page-contact .accordion__no {
  flex: 0 0 auto;
  font-family: var(--font-data);
  font-size: 11px;
  letter-spacing: .1em;
  color: var(--mute);
}

.page-contact .accordion__name {
  min-width: 0;
}

.page-contact .accordion__body {
  padding: 0 0 22px;
  font-size: 15px;
  line-height: 1.85;
  color: var(--mute);
}

.page-contact .accordion__body > p {
  margin: 0 0 12px;
}

.page-contact .accordion__body > *:last-child {
  margin-bottom: 0;
}

.page-contact .ask-list {
  margin: 0 0 14px;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 9px;
}

.page-contact .ask-list li {
  position: relative;
  padding-left: 20px;
  font-size: 15px;
  line-height: 1.7;
  color: var(--ink);
}

.page-contact .ask-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .62em;
  width: 5px;
  height: 5px;
  background: var(--cyan);
}

.page-contact .ask-eta {
  margin: 0;
  font-family: var(--font-data);
  font-size: 13px;
  line-height: 1.7;
  letter-spacing: .01em;
  color: var(--amber);
}

/* ---------- 值班图片条 ---------- */

.page-contact .contact-support {
  margin: 34px 0 0;
  display: grid;
  gap: 16px;
}

.page-contact .contact-support__media {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--blueprint);
  background: var(--abyss);
}

.page-contact .contact-support__media::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  background: linear-gradient(155deg, rgba(34, 230, 210, .16), transparent 55%);
}

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

.page-contact .contact-support__cap {
  margin: 0;
  padding-left: 14px;
  border-left: 2px solid var(--cyan);
  font-size: 14px;
  line-height: 1.8;
  color: var(--mute);
}

.page-contact .contact-support__k {
  display: block;
  margin-bottom: 6px;
  font-family: var(--font-data);
  font-size: 11px;
  letter-spacing: .14em;
  color: var(--cyan);
}

/* ---------- 合作 ---------- */

.page-contact .contact-coop {
  position: relative;
  margin-top: 24px;
  padding: 62px 0 66px;
  background: linear-gradient(180deg, rgba(10, 33, 56, .92), rgba(10, 33, 56, .45));
  clip-path: polygon(0 30px, 100% 0, 100% 100%, 0 100%);
}

.page-contact .coop-list {
  list-style: none;
  margin: 30px 0 0;
  padding: 0;
  display: grid;
  gap: 16px;
}

.page-contact .coop-card {
  position: relative;
  padding: 22px 20px 24px;
  background: var(--abyss);
  border: 1px solid var(--blueprint);
  border-top: 2px solid var(--cyan);
  outline: none;
  transition: transform 200ms var(--ease), border-color 200ms var(--ease), background 200ms var(--ease);
}

.page-contact .coop-card__no {
  display: block;
  font-family: var(--font-data);
  font-size: 11px;
  letter-spacing: .12em;
  color: var(--mute);
}

.page-contact .coop-card h3 {
  margin: 10px 0 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 21px;
  letter-spacing: -.01em;
  color: var(--ink);
}

.page-contact .coop-card > p {
  margin: 12px 0 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--mute);
}

.page-contact .coop-card > p.coop-card__more {
  max-height: 14em;
  margin-top: 14px;
  padding-top: 12px;
  border-top: 1px dashed var(--blueprint);
  overflow: hidden;
  opacity: 1;
  color: rgba(143, 166, 184, .88);
  transition: max-height 240ms var(--ease), opacity 200ms var(--ease), margin 200ms var(--ease), padding 200ms var(--ease);
}

.page-contact .coop-card:focus-visible {
  border-color: var(--cyan);
  box-shadow: 0 0 0 2px rgba(34, 230, 210, .35);
}

/* ---------- 服务范围 ---------- */

.page-contact .contact-scope {
  padding: 64px 0 68px;
  border-top: var(--c-rule);
}

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

.page-contact .contact-scope__body {
  min-width: 0;
}

.page-contact .contact-copy {
  margin: 18px 0 0;
  max-width: 58ch;
  font-size: 16px;
  line-height: 1.85;
  color: var(--mute);
}

.page-contact .scope-stats {
  list-style: none;
  margin: 30px 0 0;
  padding: 24px 0 0;
  border-top: var(--c-rule);
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}

.page-contact .scope-stats li {
  display: grid;
  gap: 4px;
  min-width: 0;
}

.page-contact .scope-num {
  font-family: var(--font-data);
  font-size: clamp(22px, 4vw, 30px);
  font-weight: 600;
  line-height: 1.1;
  letter-spacing: .01em;
  color: var(--cyan);
}

.page-contact .scope-unit {
  font-size: 12px;
  line-height: 1.55;
  color: var(--mute);
}

.page-contact .contact-scope__fig {
  position: relative;
  margin: 0;
  overflow: hidden;
  border: 1px solid var(--blueprint);
  background: var(--abyss);
}

.page-contact .contact-scope__fig::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  background: linear-gradient(180deg, rgba(4, 18, 31, .55), rgba(4, 18, 31, .12));
}

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

/* ---------- 自助路径 ---------- */

.page-contact .contact-paths {
  padding: 46px 0 76px;
  border-top: var(--c-rule);
}

.page-contact .contact-paths__lead {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 19px;
  line-height: 1.4;
  color: var(--ink);
}

.page-contact .contact-paths__list {
  list-style: none;
  margin: 18px 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.page-contact .contact-paths__list a {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 13px 18px;
  border: 1px solid var(--blueprint);
  background: rgba(10, 33, 56, .72);
  color: var(--ink);
  text-decoration: none;
  font-family: var(--font-data);
  font-size: 13px;
  letter-spacing: .04em;
  transition: border-color 180ms var(--ease), color 180ms var(--ease), background 180ms var(--ease);
}

.page-contact .contact-paths__list a::after {
  content: "\2192";
  color: var(--cyan);
}

.page-contact .contact-paths__list a:hover,
.page-contact .contact-paths__list a:focus-visible {
  border-color: var(--cyan);
  background: rgba(34, 230, 210, .08);
  color: var(--cyan);
}

/* ---------- 断点 ---------- */

@media (min-width: 760px) {
  .page-contact .contact-support {
    grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr);
    gap: 26px;
    align-items: center;
  }
}

@media (min-width: 780px) {
  .page-contact .coop-list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-contact .contact-mast {
    padding: 56px 0 48px;
  }

  .page-contact .contact-mast__lead {
    font-size: 17px;
  }

  .page-contact .contact-split {
    grid-template-columns: minmax(300px, 360px) minmax(0, 1fr);
    gap: 56px;
    align-items: start;
    padding: 54px 0 76px;
  }

  .page-contact .contact-card {
    position: sticky;
    top: calc(var(--header-offset) + 24px);
  }

  .page-contact .contact-scope__grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr);
    gap: 52px;
    align-items: center;
  }
}

@media (hover: hover) and (min-width: 780px) {
  .page-contact .coop-card > p.coop-card__more {
    max-height: 0;
    margin-top: 0;
    padding-top: 0;
    border-top-color: transparent;
    opacity: 0;
  }

  .page-contact .coop-card:hover,
  .page-contact .coop-card:focus-within {
    transform: translateY(-4px);
    border-top-color: var(--signal);
    background: #0C2740;
  }

  .page-contact .coop-card:hover > p.coop-card__more,
  .page-contact .coop-card:focus-within > p.coop-card__more {
    max-height: 14em;
    margin-top: 14px;
    padding-top: 12px;
    border-top-color: var(--blueprint);
    opacity: 1;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .accordion__head,
  .page-contact .coop-card,
  .page-contact .coop-card > p.coop-card__more,
  .page-contact .contact-paths__list a {
    transition: none;
  }
}