.page-contact {
  --co-line: 1px solid var(--mist-500);
  background: var(--ink-900);
  color: var(--fog-050);
  font-family: var(--font-body);
  overflow-x: hidden;
}

.page-contact .mono {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
}

/* 面包屑 */
.page-contact .breadcrumbs {
  padding: 18px 0 0;
}
.page-contact .co-crumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  list-style: none;
  margin: 0;
  padding: 0;
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--mist-300);
}
.page-contact .breadcrumbs__item + .breadcrumbs__item::before {
  content: "/";
  margin-right: 10px;
  color: var(--mist-500);
}
.page-contact .breadcrumbs__link {
  color: var(--mist-300);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease);
}
.page-contact .breadcrumbs__link:hover,
.page-contact .breadcrumbs__link:focus-visible {
  color: var(--cyan-500);
  border-bottom-color: var(--cyan-500);
}
.page-contact .breadcrumbs__current {
  color: var(--fog-050);
}

/* 首屏 */
.page-contact .co-hero {
  position: relative;
  overflow: hidden;
  padding: 26px 0 38px;
  border-bottom: var(--co-line);
}
.page-contact .co-hero__slant {
  position: absolute;
  z-index: 0;
  right: -45%;
  bottom: -16%;
  width: 175%;
  height: 60%;
  background: var(--ink-800);
  border-top: 1px solid var(--mist-500);
  transform: skewY(-8deg);
}
.page-contact .co-hero__body {
  position: relative;
  z-index: 1;
}
.page-contact .co-kicker {
  margin: 0 0 12px;
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--cyan-500);
}
.page-contact .co-h1 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(34px, 8.2vw, 70px);
  line-height: 1.04;
  letter-spacing: -0.02em;
  color: var(--fog-050);
}
.page-contact .co-lede {
  max-width: 32em;
  margin: 16px 0 0;
  font-size: 16px;
  line-height: 1.85;
  color: var(--mist-300);
}
.page-contact .co-quick {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 22px;
  list-style: none;
  margin: 22px 0 0;
  padding: 0;
}
.page-contact .co-quick li {
  display: flex;
  align-items: baseline;
  gap: 8px;
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--mist-300);
}
.page-contact .co-quick strong {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 17px;
  font-weight: 600;
  color: var(--fog-050);
}
.page-contact .co-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}

/* 首屏悬浮联系卡 */
.page-contact .co-hero__card {
  position: relative;
  z-index: 2;
  margin-top: 30px;
  padding: 20px;
  background: var(--ink-700);
  border: var(--co-line);
  border-radius: var(--radius);
  box-shadow: 0 22px 48px rgba(6, 18, 15, 0.52);
}
.page-contact .co-card__title {
  margin: 0 0 14px;
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--mist-300);
}
.page-contact .co-card__row {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 11px 0;
  border-top: var(--co-line);
}
.page-contact .co-card__row:first-of-type {
  border-top: 0;
  padding-top: 0;
}
.page-contact .co-card__k {
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--mist-300);
}
.page-contact .co-card__v {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 14px;
  line-height: 1.6;
  color: var(--fog-050);
  word-break: break-word;
}
.page-contact .co-card__v--accent {
  color: var(--cyan-500);
}

/* 章节通用 */
.page-contact .section {
  padding: 40px 0;
  border-bottom: var(--co-line);
}
.page-contact .co-section:last-of-type {
  border-bottom: 0;
  padding-bottom: 56px;
}
.page-contact .section-head {
  display: flex;
  align-items: baseline;
  gap: 14px;
  margin: 0 0 22px;
}
.page-contact .section-index {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--orange-500);
}
.page-contact .section-title {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(23px, 4.6vw, 40px);
  line-height: 1.12;
  letter-spacing: -0.01em;
  color: var(--fog-050);
}

/* 01 合作线 */
.page-contact .co-lanes {
  display: grid;
  gap: 1px;
  background: var(--mist-500);
  border: var(--co-line);
}
.page-contact .co-lane {
  display: flex;
  flex-direction: column;
  padding: 20px 18px 16px;
  background: var(--ink-800);
}
.page-contact .co-lane__head {
  display: flex;
  align-items: baseline;
  gap: 10px;
}
.page-contact .co-lane__num {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--mist-300);
}
.page-contact .co-lane__title {
  margin: 0;
  font-family: var(--font-display);
  font-size: 23px;
  line-height: 1.2;
  letter-spacing: -0.01em;
  color: var(--fog-050);
}
.page-contact .co-lane__desc {
  margin: 10px 0 16px;
  font-size: 15px;
  line-height: 1.85;
  color: var(--mist-300);
}

/* 展开组通用 */
.page-contact .co-lane__trigger,
.page-contact .co-step__trigger {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  width: 100%;
  margin-top: auto;
  padding: 10px 0 0;
  background: none;
  border: 0;
  border-top: var(--co-line);
  color: var(--cyan-500);
  font-family: var(--font-body);
  font-size: 12px;
  letter-spacing: 0.12em;
  text-align: left;
  cursor: pointer;
  transition: color 0.2s var(--ease);
}
.page-contact .co-lane__trigger::after,
.page-contact .co-step__trigger::after {
  content: "+";
  font-family: var(--font-mono);
  font-size: 16px;
  line-height: 1;
}
.page-contact .co-lane__trigger[aria-expanded="true"]::after,
.page-contact .co-step__trigger[aria-expanded="true"]::after {
  content: "\2212";
}
.page-contact .co-lane__trigger:hover,
.page-contact .co-lane__trigger:focus-visible,
.page-contact .co-step__trigger:hover,
.page-contact .co-step__trigger:focus-visible {
  color: var(--fog-050);
  outline: none;
}
.page-contact .accordion__panel {
  overflow: hidden;
}
.page-contact .accordion__panel-inner {
  padding: 12px 0 4px;
  font-size: 14px;
  line-height: 1.85;
  color: var(--mist-300);
}
.page-contact .accordion__panel-inner p {
  margin: 0 0 8px;
}
.page-contact .accordion__panel-inner ul {
  margin: 0;
  padding-left: 16px;
  display: grid;
  gap: 6px;
}
.page-contact .accordion__panel-inner li::marker {
  color: var(--cyan-700);
}

/* 02 资源 */
.page-contact .co-res {
  display: grid;
  gap: 24px;
}
.page-contact .co-stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  list-style: none;
  margin: 0;
  padding: 0;
  background: var(--mist-500);
  border: var(--co-line);
}
.page-contact .co-stat {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 16px 14px 18px;
  background: var(--ink-800);
}
.page-contact .co-stat__num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 28px;
  line-height: 1.1;
  letter-spacing: 0;
  color: var(--cyan-500);
}
.page-contact .co-stat__label {
  font-size: 13px;
  line-height: 1.7;
  color: var(--mist-300);
}
.page-contact .co-res__figure {
  margin: 0;
  border: var(--co-line);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--ink-800);
}
.page-contact .co-res__figure .media__img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
}
.page-contact .co-res__figure .media__caption {
  padding: 10px 14px;
  font-size: 11px;
  letter-spacing: 0.06em;
  line-height: 1.7;
  color: var(--mist-300);
  border-top: var(--co-line);
}

/* 03 流程 */
.page-contact .co-steps {
  display: grid;
  gap: 14px;
}
.page-contact .co-step {
  display: flex;
  flex-direction: column;
  padding: 18px 16px 16px;
  background: var(--ink-800);
  border: var(--co-line);
  border-top: 2px solid var(--mist-500);
  border-radius: var(--radius);
  transition: border-top-color 0.22s var(--ease);
}
.page-contact .co-step:hover,
.page-contact .co-step:focus-within {
  border-top-color: var(--cyan-500);
}
.page-contact .co-step__num {
  display: grid;
  place-items: center;
  width: 36px;
  height: 36px;
  margin-bottom: 14px;
  border: 1px solid var(--cyan-500);
  border-radius: 50%;
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--cyan-500);
}
.page-contact .co-step__title {
  margin: 0 0 6px;
  font-family: var(--font-display);
  font-size: 20px;
  line-height: 1.25;
  color: var(--fog-050);
}
.page-contact .co-step__meta {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--orange-500);
}
.page-contact .co-step__panel .accordion__panel-inner {
  font-size: 13px;
}

/* 04 联系渠道 */
.page-contact .co-contact {
  position: relative;
  overflow: hidden;
  margin-top: 4px;
  background: var(--ink-800);
  border: var(--co-line);
  border-radius: var(--radius);
}
.page-contact .co-contact__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  width: 100%;
  height: 100%;
  max-width: 100%;
  object-fit: cover;
  opacity: 0.22;
  filter: saturate(0.65);
}
.page-contact .co-contact__grid {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 0;
  padding: 6px 18px;
  background: linear-gradient(180deg, rgba(11, 31, 26, 0.72), rgba(6, 18, 15, 0.86));
}
.page-contact .co-row {
  display: grid;
  gap: 6px;
  padding: 15px 0;
  border-bottom: var(--co-line);
}
.page-contact .co-row:last-child {
  border-bottom: 0;
}
.page-contact .co-row__label {
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--mist-300);
}
.page-contact .co-row__value {
  font-size: 15px;
  line-height: 1.75;
  color: var(--fog-050);
  word-break: break-word;
}
.page-contact .co-row__value--accent {
  color: var(--cyan-500);
}

/* 05 材料清单 */
.page-contact .co-mats {
  display: grid;
  gap: 1px;
  list-style: none;
  margin: 0;
  padding: 0;
  background: var(--mist-500);
  border: var(--co-line);
}
.page-contact .co-mat {
  display: grid;
  grid-template-columns: 30px minmax(0, 1fr);
  gap: 12px;
  padding: 18px 16px;
  background: var(--ink-800);
}
.page-contact .co-mat__n {
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 1.6;
  color: var(--orange-500);
}
.page-contact .co-mat__t {
  margin: 0 0 6px;
  font-size: 14px;
  font-weight: 600;
  line-height: 1.5;
  color: var(--fog-050);
}
.page-contact .co-mat__d {
  margin: 0;
  font-size: 13px;
  line-height: 1.8;
  color: var(--mist-300);
}
.page-contact .co-mats__note {
  margin: 20px 0 0;
  max-width: 34em;
  font-size: 14px;
  line-height: 1.9;
  color: var(--mist-300);
}
.page-contact .co-mats__note .mono {
  color: var(--cyan-500);
  word-break: break-word;
}

/* 页面内跳转按钮组 */
.page-contact .co-links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  list-style: none;
  margin: 26px 0 0;
  padding: 0;
}
.page-contact .co-links a {
  display: inline-block;
  padding: 9px 14px;
  border: var(--co-line);
  border-radius: var(--radius);
  font-size: 13px;
  color: var(--fog-050);
  text-decoration: none;
  transition: border-color 0.2s var(--ease), color 0.2s var(--ease);
}
.page-contact .co-links a:hover,
.page-contact .co-links a:focus-visible {
  border-color: var(--cyan-500);
  color: var(--cyan-500);
  outline: none;
}

@media (min-width: 720px) {
  .page-contact .co-stats {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
  .page-contact .co-lanes {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .page-contact .co-steps {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .page-contact .co-mats {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .page-contact .co-row {
    grid-template-columns: 132px minmax(0, 1fr);
    align-items: baseline;
    gap: 18px;
  }
  .page-contact .co-row__label {
    padding-top: 2px;
  }
  .page-contact .co-contact__grid {
    padding: 10px 26px;
  }
}

@media (min-width: 960px) {
  .page-contact .co-hero {
    display: grid;
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: 40px;
    align-items: center;
    padding: 46px 0 60px;
  }
  .page-contact .co-hero__slant {
    top: -24%;
    right: -8%;
    bottom: auto;
    width: 54%;
    height: 150%;
    border-top: 0;
    border-left: 1px solid var(--mist-500);
  }
  .page-contact .co-hero__card {
    margin-top: -24px;
    padding: 24px 22px;
  }
  .page-contact .co-res {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
    align-items: start;
    gap: 30px;
  }
  .page-contact .section {
    padding: 56px 0;
  }
  .page-contact .section-head {
    margin-bottom: 28px;
  }
  .page-contact .co-lane {
    padding: 26px 24px 20px;
  }
}

@media (min-width: 1140px) {
  .page-contact .co-steps {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
  .page-contact .co-step__panel .accordion__panel-inner {
    font-size: 13px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .co-hero__slant {
    transform: skewY(-8deg);
  }
  .page-contact *,
  .page-contact *::before,
  .page-contact *::after {
    transition-duration: 0.01ms !important;
  }
}