.page-contact {
  --co-rail: 340px;
  --co-gap: 36px;
  --co-shadow: 4px 4px 0 var(--line);
  --co-shadow-hi: 6px 6px 0 var(--moss);
  color: var(--paper);
}

.page-contact .co-shell {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 34px;
  padding-block: 24px 40px;
}

.page-contact .co-shell-foot {
  padding-bottom: 64px;
}

/* ---------- 面包屑与首屏 ---------- */

.page-contact .breadcrumb {
  font-size: var(--f-14);
  color: var(--fog);
  margin-bottom: 24px;
}

.page-contact .breadcrumb a {
  color: var(--fog);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color .2s var(--ease), color .2s var(--ease);
}

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

.page-contact .co-hero {
  padding-bottom: 28px;
  border-bottom: 1px solid var(--line);
}

.page-contact .co-hero__kicker {
  display: inline-block;
  margin: 0 0 18px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--line);
  font-size: var(--f-14);
  letter-spacing: .12em;
  color: var(--signal);
  text-transform: uppercase;
}

.page-contact .co-hero__title {
  margin: 0 0 20px;
  max-width: 22ch;
  font-size: var(--f-56);
  font-weight: 900;
  line-height: 1.14;
  letter-spacing: .01em;
  color: var(--paper);
}

.page-contact .co-hero__lede {
  margin: 0;
  max-width: 62ch;
  font-size: var(--f-18);
  line-height: 1.75;
  color: var(--paper);
  opacity: .86;
}

.page-contact .co-figures {
  list-style: none;
  margin: 28px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-contact .co-figures li {
  background: var(--carbon);
  padding: 14px 12px;
}

.page-contact .co-figures__v {
  display: block;
  font-family: var(--mono);
  font-size: var(--f-24);
  color: var(--signal);
  letter-spacing: -.02em;
}

.page-contact .co-figures__k {
  display: block;
  margin-top: 6px;
  font-size: var(--f-14);
  line-height: 1.5;
  color: var(--fog);
}

/* ---------- 通用章节 ---------- */

.page-contact .co-section {
  margin-top: 48px;
  padding-top: 26px;
  border-top: 1px solid var(--line);
}

.page-contact .co-section .section-head {
  margin-bottom: 22px;
}

.page-contact .co-section .section-head__kicker {
  margin: 0 0 8px;
  font-size: var(--f-14);
  letter-spacing: .12em;
  color: var(--signal);
  text-transform: uppercase;
}

.page-contact .co-section .section-head__title {
  margin: 0 0 8px;
  font-size: var(--f-36);
  font-weight: 800;
  line-height: 1.2;
  color: var(--paper);
}

.page-contact .co-section .section-head__note {
  margin: 0;
  font-size: var(--f-14);
  color: var(--fog);
}

/* ---------- 三张方向卡 ---------- */

.page-contact .co-dirs {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 16px;
}

.page-contact .co-dir {
  display: block;
  padding: 18px 16px 16px;
  background: var(--carbon);
  border: 1px solid var(--line);
  box-shadow: var(--co-shadow);
  text-decoration: none;
  color: inherit;
  transition: border-color .22s var(--ease), transform .22s var(--ease), box-shadow .22s var(--ease);
}

.page-contact .co-dir:hover,
.page-contact .co-dir:focus-visible {
  border-color: var(--signal);
  transform: translate(-2px, -2px);
  box-shadow: var(--co-shadow-hi);
}

.page-contact .co-dir__no {
  display: block;
  font-family: var(--mono);
  font-size: var(--f-56);
  font-weight: 700;
  line-height: .9;
  color: var(--moss);
  -webkit-text-stroke: 1px var(--signal);
}

.page-contact .co-dir__title {
  margin: 12px 0 8px;
  font-size: var(--f-24);
  font-weight: 800;
  line-height: 1.25;
  color: var(--paper);
}

.page-contact .co-dir__for {
  margin: 0 0 10px;
  font-size: var(--f-14);
  line-height: 1.6;
  color: var(--alert);
}

.page-contact .co-dir__desc {
  margin: 0;
  font-size: var(--f-14);
  line-height: 1.75;
  color: var(--fog);
}

.page-contact .co-dir__more {
  display: inline-block;
  margin-top: 14px;
  font-size: var(--f-14);
  letter-spacing: .08em;
  color: var(--signal);
  border-bottom: 1px solid var(--moss);
  transition: border-color .2s var(--ease);
}

.page-contact .co-dir:hover .co-dir__more {
  border-bottom-color: var(--signal);
}

/* ---------- 细则说明 ---------- */

.page-contact .co-details {
  display: grid;
  gap: 1px;
  margin-top: 20px;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-contact .co-detail {
  padding: 22px 18px;
  background: var(--ink);
  scroll-margin-top: calc(var(--status-h) + 20px);
  transition: background .25s var(--ease), box-shadow .25s var(--ease);
}

.page-contact .co-detail:target {
  background: var(--carbon);
  box-shadow: inset 3px 0 0 var(--signal);
}

.page-contact .co-detail__head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 10px;
  margin-bottom: 12px;
}

.page-contact .co-detail__title {
  margin: 0;
  font-size: var(--f-24);
  font-weight: 800;
  line-height: 1.3;
  color: var(--paper);
}

.page-contact .co-detail p {
  margin: 0;
  max-width: 62ch;
  font-size: var(--f-18);
  line-height: 1.75;
  color: var(--paper);
  opacity: .86;
}

.page-contact .co-bullets {
  list-style: none;
  margin: 16px 0 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-contact .co-bullets li {
  position: relative;
  padding-left: 20px;
  font-size: var(--f-18);
  line-height: 1.7;
  color: var(--paper);
  opacity: .86;
}

.page-contact .co-bullets li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .78em;
  width: 11px;
  height: 2px;
  background: var(--signal);
}

/* ---------- 流程图 ---------- */

.page-contact .co-flow-figure {
  margin: 0 0 28px;
  border: 1px solid var(--line);
  background: var(--carbon);
  box-shadow: var(--co-shadow);
}

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

.page-contact .co-flow-figure figcaption {
  padding: 10px 14px;
  border-top: 1px solid var(--line);
  font-size: var(--f-14);
  color: var(--fog);
}

/* ---------- 四步流程 ---------- */

.page-contact .co-steps {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-contact .co-step {
  position: relative;
  display: grid;
  grid-template-columns: 44px minmax(0, 1fr);
  column-gap: 14px;
  padding-bottom: 22px;
  outline: none;
}

.page-contact .co-step::before {
  content: "";
  position: absolute;
  left: 21px;
  top: 52px;
  bottom: 0;
  width: 1px;
  background: var(--line);
}

.page-contact .co-step:last-child {
  padding-bottom: 0;
}

.page-contact .co-step:last-child::before {
  display: none;
}

.page-contact .co-step__no {
  grid-column: 1;
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--line);
  border-radius: 50%;
  background: var(--carbon);
  font-family: var(--mono);
  font-size: var(--f-14);
  color: var(--signal);
}

.page-contact .co-step__body {
  grid-column: 2;
  padding: 16px;
  background: var(--carbon);
  border: 1px solid var(--line);
  transition: border-color .22s var(--ease), transform .22s var(--ease);
}

.page-contact .co-step:hover .co-step__body,
.page-contact .co-step:focus-within .co-step__body {
  border-color: var(--signal);
  transform: translateY(-2px);
}

.page-contact .co-step__title {
  margin: 0 0 8px;
  font-size: var(--f-24);
  font-weight: 800;
  line-height: 1.3;
  color: var(--paper);
}

.page-contact .co-step__body > p {
  margin: 0;
  font-size: var(--f-18);
  line-height: 1.7;
  color: var(--paper);
  opacity: .85;
}

.page-contact .co-step__mats {
  margin-top: 0;
  max-height: none;
  opacity: 1;
  overflow: hidden;
  transition: max-height .3s var(--ease), opacity .25s var(--ease), margin-top .25s var(--ease);
}

.page-contact .co-step__mats-title {
  margin: 0 0 8px;
  padding-top: 14px;
  border-top: 1px solid var(--line);
  font-size: var(--f-14);
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--signal);
}

.page-contact .co-step__mats ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 8px;
}

.page-contact .co-step__mats li {
  position: relative;
  padding-left: 18px;
  font-size: var(--f-14);
  line-height: 1.65;
  color: var(--fog);
}

.page-contact .co-step__mats li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .7em;
  width: 8px;
  height: 2px;
  background: var(--data);
}

/* ---------- 过往合作 ---------- */

.page-contact .co-table-cap {
  padding: 10px 12px;
  text-align: left;
  font-size: var(--f-14);
  color: var(--fog);
  caption-side: top;
}

.page-contact .co-proof-notes {
  margin-top: 24px;
  display: grid;
  gap: 16px;
}

.page-contact .co-proof-notes p {
  margin: 0;
  max-width: 62ch;
  font-size: var(--f-18);
  line-height: 1.75;
  color: var(--paper);
  opacity: .86;
}

.page-contact .co-proof-notes a {
  color: var(--signal);
  text-decoration: none;
  border-bottom: 1px solid var(--moss);
  transition: border-color .2s var(--ease);
}

.page-contact .co-proof-notes a:hover,
.page-contact .co-proof-notes a:focus-visible {
  border-bottom-color: var(--signal);
}

/* ---------- 媒体与转载 ---------- */

.page-contact .co-media-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-contact .co-media-block {
  padding: 20px 18px;
  background: var(--carbon);
}

.page-contact .co-media-block__label {
  margin: 0 0 10px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--line);
  font-size: var(--f-14);
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--signal);
}

.page-contact .co-media-block p:last-child {
  margin: 0;
  font-size: var(--f-18);
  line-height: 1.75;
  color: var(--paper);
  opacity: .85;
}

.page-contact .co-media-block a {
  color: var(--signal);
  text-decoration: none;
  border-bottom: 1px solid var(--moss);
}

.page-contact .co-media-block a:hover,
.page-contact .co-media-block a:focus-visible {
  border-bottom-color: var(--signal);
}

/* ---------- 联系卡片 ---------- */

.page-contact .co-card {
  position: relative;
  overflow: hidden;
  background: var(--index);
  color: var(--ink);
  border: 1px solid var(--line);
  box-shadow: var(--co-shadow);
}

.page-contact .co-card__bg {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  width: 100%;
  height: 46%;
  object-fit: cover;
  opacity: .22;
  pointer-events: none;
}

.page-contact .co-card__inner {
  position: relative;
  z-index: 1;
  padding: 22px 18px 24px;
}

.page-contact .co-card__kicker {
  margin: 0 0 10px;
  font-size: var(--f-14);
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--moss);
  border-bottom: 1px solid rgba(6, 8, 11, .18);
  padding-bottom: 8px;
  display: inline-block;
}

.page-contact .co-card__title {
  margin: 0 0 18px;
  font-size: var(--f-24);
  font-weight: 900;
  line-height: 1.25;
  color: var(--ink);
}

.page-contact .co-card__list {
  margin: 0;
  display: grid;
  gap: 14px;
}

.page-contact .co-card__row {
  padding-bottom: 12px;
  border-bottom: 1px solid rgba(6, 8, 11, .14);
}

.page-contact .co-card__row:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.page-contact .co-card__row dt {
  font-size: var(--f-14);
  letter-spacing: .06em;
  color: #4A5560;
  margin-bottom: 4px;
}

.page-contact .co-card__val {
  margin: 0;
  font-size: var(--f-18);
  line-height: 1.5;
  color: var(--ink);
  word-break: break-all;
}

.page-contact .co-card__val--lg {
  font-size: var(--f-24);
  color: var(--moss);
}

.page-contact .co-card__val--addr {
  word-break: normal;
  line-height: 1.6;
}

.page-contact .co-card__note {
  margin: 16px 0 18px;
  font-size: var(--f-14);
  line-height: 1.7;
  color: #3C4650;
}

/* ---------- 底部号召条 ---------- */

.page-contact .co-cta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 26px 20px;
  background: var(--index);
  color: var(--ink);
  border: 1px solid var(--line);
  box-shadow: var(--co-shadow);
}

.page-contact .co-cta__kicker {
  margin: 0 0 8px;
  font-size: var(--f-14);
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--moss);
}

.page-contact .co-cta__title {
  margin: 0;
  max-width: 30ch;
  font-size: var(--f-24);
  font-weight: 900;
  line-height: 1.3;
  color: var(--ink);
}

.page-contact .co-cta__links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.page-contact .co-cta__links .btn--ghost {
  border-color: var(--ink);
  color: var(--ink);
}

.page-contact .co-cta__links .btn--ghost:hover,
.page-contact .co-cta__links .btn--ghost:focus-visible {
  border-color: var(--moss);
  color: var(--moss);
}

/* ---------- 响应式 ---------- */

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

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

  .page-contact .co-proof-notes {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 24px;
  }

  .page-contact .co-card__inner {
    padding: 26px 22px 28px;
  }
}

@media (min-width: 960px) {
  .page-contact .co-shell {
    grid-template-columns: minmax(0, 1fr) var(--co-rail);
    gap: var(--co-gap);
    align-items: start;
    padding-block: 30px 44px;
  }

  .page-contact .co-aside {
    position: sticky;
    top: calc(var(--status-h) + 22px);
  }

  .page-contact .co-step__mats {
    max-height: 0;
    opacity: 0;
    margin-top: 0;
  }

  .page-contact .co-step:hover .co-step__mats,
  .page-contact .co-step:focus-within .co-step__mats {
    max-height: 320px;
    opacity: 1;
  }

  .page-contact .co-cta {
    padding: 32px 32px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .co-dir,
  .page-contact .co-step__body,
  .page-contact .co-step__mats,
  .page-contact .co-detail {
    transition: none;
  }
}