.page-contact {
  --contact-card-top: calc(var(--header-h, 64px) + 24px);
  --contact-track-line: rgba(110, 116, 128, .34);
}

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  padding-block: clamp(22px, 4vw, 40px) clamp(30px, 5vw, 56px);
}

.page-contact .contact-hero__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 34px;
  align-items: center;
}

.page-contact .contact-hero__text {
  max-width: 60ch;
}

.page-contact .contact-hero__title {
  font-family: var(--font-sans);
  font-weight: 800;
  font-size: clamp(30px, 5.4vw, 56px);
  line-height: 1.15;
  letter-spacing: .04em;
  color: var(--text);
  margin: 14px 0 18px;
}

.page-contact .contact-hero__lede {
  font-size: var(--fs-18);
  line-height: 1.8;
  color: var(--text-soft);
  max-width: 40em;
}

.page-contact .hero-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 14px 34px;
  margin: 28px 0 0;
  padding-top: 22px;
  border-top: 1px solid var(--line);
}

.page-contact .hero-stats__item {
  display: flex;
  flex-direction: column;
  gap: 6px;
  min-width: 96px;
}

.page-contact .hero-stats__label {
  font-size: var(--fs-12);
  letter-spacing: .08em;
  color: var(--text-dim);
  margin: 0;
}

.page-contact .hero-stats__value {
  margin: 0;
  font-family: var(--font-mono);
  font-size: var(--fs-22);
  font-weight: 600;
  letter-spacing: .02em;
  background: linear-gradient(96deg, var(--cyan), var(--violet));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.page-contact .contact-hero__hint {
  margin: 22px 0 0;
  font-size: var(--fs-14);
  color: var(--text-dim);
  padding-left: 14px;
  border-left: 2px solid var(--clay);
}

.page-contact .contact-hero__media {
  margin: 0;
  border-radius: var(--radius-l);
  border: 1px solid var(--line);
  position: relative;
  isolation: isolate;
}

.page-contact .contact-hero__media img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  aspect-ratio: 3 / 2;
}

/* ---------- 两栏主体 ---------- */
.page-contact .contact-body {
  display: grid;
  grid-template-columns: 1fr;
  gap: 44px;
  padding-bottom: clamp(52px, 8vw, 104px);
}

.page-contact .contact-block {
  scroll-margin-top: calc(var(--header-h, 64px) + 18px);
}

.page-contact .contact-block + .contact-block {
  margin-top: clamp(44px, 6vw, 76px);
}

.page-contact .contact-block__intro {
  max-width: 44em;
  margin: 14px 0 26px;
  color: var(--text-soft);
}

/* ---------- 四类合作 ---------- */
.page-contact .tracks {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}

.page-contact .track {
  position: relative;
  padding: 22px 22px 24px;
  border-radius: var(--radius-m);
  background: linear-gradient(150deg, var(--ink-700), rgba(19, 28, 69, .62));
  border: 1px solid var(--line);
  border-left: 3px solid var(--stone);
  transition: transform var(--dur) var(--ease), border-color var(--dur) var(--ease),
              box-shadow var(--dur) var(--ease);
}

.page-contact .track:hover {
  transform: translateY(-4px);
  box-shadow: 0 14px 32px rgba(5, 7, 15, .5);
}

.page-contact .track--moss { border-left-color: var(--moss); }
.page-contact .track--clay { border-left-color: var(--clay); }
.page-contact .track--violet { border-left-color: var(--violet); }
.page-contact .track--cyan { border-left-color: var(--cyan); }

.page-contact .track--moss:hover { border-color: rgba(124, 154, 114, .55); border-left-color: var(--moss); }
.page-contact .track--clay:hover { border-color: rgba(185, 112, 79, .55); border-left-color: var(--clay); }
.page-contact .track--violet:hover { border-color: rgba(139, 92, 246, .55); border-left-color: var(--violet); }
.page-contact .track--cyan:hover { border-color: rgba(34, 211, 238, .5); border-left-color: var(--cyan); }

.page-contact .track__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 14px;
}

.page-contact .track__cycle {
  font-size: var(--fs-14);
  color: var(--text-dim);
  letter-spacing: .02em;
}

.page-contact .track__title {
  font-family: var(--font-sans);
  font-weight: 700;
  font-size: var(--fs-18);
  line-height: 1.5;
  letter-spacing: .02em;
  color: var(--text);
  margin: 0 0 10px;
}

.page-contact .track__body {
  margin: 0;
  font-size: var(--fs-16);
  line-height: 1.8;
  color: var(--text-soft);
}

/* ---------- 洽谈流程 ---------- */
.page-contact .flow {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-contact .flow__step {
  position: relative;
  padding: 0 0 30px 54px;
  margin-left: 18px;
  border-left: 1px dashed var(--contact-track-line);
  transition: border-color var(--dur) var(--ease);
}

.page-contact .flow__step:last-child {
  padding-bottom: 0;
  border-left-color: transparent;
}

.page-contact .flow__step:hover,
.page-contact .flow__step:focus-visible {
  border-left-color: rgba(185, 112, 79, .7);
  outline: none;
}

.page-contact .flow__num {
  position: absolute;
  left: -19px;
  top: -2px;
  width: 38px;
  height: 38px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: var(--ink-800);
  border: 1px solid rgba(185, 112, 79, .55);
  color: var(--clay);
  font-size: var(--fs-14);
  letter-spacing: .02em;
  transition: background var(--dur) var(--ease), color var(--dur) var(--ease),
              border-color var(--dur) var(--ease);
}

.page-contact .flow__step:hover .flow__num,
.page-contact .flow__step:focus-visible .flow__num {
  background: var(--clay);
  color: var(--ink-900);
  border-color: var(--clay);
}

.page-contact .flow__content {
  padding-top: 3px;
}

.page-contact .flow__title {
  display: flex;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 10px;
  margin: 0 0 8px;
  font-family: var(--font-sans);
  font-weight: 700;
  font-size: var(--fs-18);
  letter-spacing: .02em;
  color: var(--text);
}

.page-contact .flow__who {
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: .04em;
  color: var(--moss);
  padding: 2px 8px;
  border: 1px solid rgba(124, 154, 114, .45);
  border-radius: var(--radius-pill);
  white-space: nowrap;
}

.page-contact .flow__body {
  margin: 0;
  font-size: var(--fs-16);
  line-height: 1.8;
  color: var(--text-soft);
  max-width: 40em;
}

/* ---------- 准备清单 ---------- */
.page-contact .checklist {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
}

.page-contact .checklist__label {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 16px 18px;
  border-radius: var(--radius-m);
  background: rgba(19, 28, 69, .55);
  border: 1px solid var(--line);
  cursor: pointer;
  transition: border-color var(--dur) var(--ease), background var(--dur) var(--ease);
}

.page-contact .checklist__label:hover {
  border-color: rgba(34, 211, 238, .45);
}

.page-contact .checklist__input {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}

.page-contact .checklist__box {
  flex: 0 0 auto;
  width: 20px;
  height: 20px;
  margin-top: 3px;
  border-radius: 5px;
  border: 1px solid var(--line-strong);
  background: var(--ink-800);
  position: relative;
  transition: border-color var(--dur) var(--ease), background var(--dur) var(--ease);
}

.page-contact .checklist__box::after {
  content: "";
  position: absolute;
  left: 6px;
  top: 2px;
  width: 5px;
  height: 10px;
  border-right: 2px solid var(--ink-900);
  border-bottom: 2px solid var(--ink-900);
  transform: rotate(42deg) scale(0);
  transform-origin: center;
  transition: transform var(--dur) var(--ease);
}

.page-contact .checklist__input:checked + .checklist__box {
  background: var(--cyan);
  border-color: var(--cyan);
}

.page-contact .checklist__input:checked + .checklist__box::after {
  transform: rotate(42deg) scale(1);
}

.page-contact .checklist__input:focus-visible + .checklist__box {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
}

.page-contact .checklist__text {
  font-size: var(--fs-16);
  line-height: 1.8;
  color: var(--text-soft);
}

.page-contact .checklist__text strong {
  color: var(--text);
  font-weight: 600;
  margin-right: 4px;
}

/* ---------- 联系渠道 ---------- */
.page-contact .reach-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
}

.page-contact .reach-item {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 20px 22px;
  border-radius: var(--radius-m);
  background: linear-gradient(160deg, rgba(19, 28, 69, .92), rgba(10, 18, 48, .78));
  border: 1px solid var(--line);
  border-top: 2px solid rgba(34, 211, 238, .5);
  transition: transform var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-contact .reach-item:hover {
  transform: translateY(-3px);
  border-color: rgba(34, 211, 238, .45);
}

.page-contact .reach-item__label {
  font-size: var(--fs-12);
  letter-spacing: .1em;
  color: var(--text-dim);
}

.page-contact .reach-item__value {
  font-size: var(--fs-16);
  line-height: 1.5;
  color: var(--text);
  letter-spacing: .02em;
  word-break: break-word;
}

.page-contact .reach-item__note {
  font-size: var(--fs-14);
  line-height: 1.75;
  color: var(--text-dim);
}

.page-contact .contact-callout {
  margin-top: 22px;
}

.page-contact .contact-callout p {
  margin: 0;
  font-size: var(--fs-16);
  line-height: 1.8;
  color: var(--text-soft);
}

/* ---------- 到访与资质 ---------- */
.page-contact .visit-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 26px;
  align-items: start;
}

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

.page-contact .visit-list__row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 6px;
  padding: 15px 0;
  border-bottom: 1px solid var(--line);
}

.page-contact .visit-list__row dt {
  font-size: var(--fs-12);
  letter-spacing: .1em;
  color: var(--text-dim);
}

.page-contact .visit-list__row dd {
  margin: 0;
  font-size: var(--fs-16);
  line-height: 1.75;
  color: var(--text);
}

.page-contact .visit-list__row dd.mono {
  font-family: var(--font-mono);
  font-size: var(--fs-14);
  letter-spacing: .02em;
  color: var(--text-soft);
}

.page-contact .visit-figure {
  margin: 0;
  border-radius: var(--radius-l);
  border: 1px solid var(--line);
  overflow: hidden;
}

.page-contact .visit-figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  aspect-ratio: 3 / 2;
}

.page-contact .visit-foot {
  margin: 26px 0 0;
  font-size: var(--fs-16);
  line-height: 1.8;
  color: var(--text-soft);
}

/* ---------- 悬浮联系卡片 ---------- */
.page-contact .contact-aside {
  align-self: stretch;
}

.page-contact .contact-card {
  position: sticky;
  top: var(--contact-card-top);
  padding: 26px 24px 24px;
  border-radius: var(--radius-l);
  background:
    linear-gradient(158deg, rgba(139, 92, 246, .16), rgba(34, 211, 238, .09) 52%, rgba(10, 18, 48, .92));
  border: 1px solid rgba(139, 92, 246, .34);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  box-shadow: 0 20px 44px rgba(5, 7, 15, .48);
}

.page-contact .contact-card__eyebrow {
  margin: 0 0 12px;
  font-size: var(--fs-12);
  letter-spacing: .12em;
  color: var(--cyan);
}

.page-contact .contact-card__title {
  margin: 0 0 22px;
  font-family: var(--font-sans);
  font-weight: 700;
  font-size: var(--fs-18);
  line-height: 1.55;
  letter-spacing: .02em;
  color: var(--text);
}

.page-contact .contact-card__field {
  display: flex;
  flex-direction: column;
  gap: 5px;
  padding: 12px 0;
  border-top: 1px solid rgba(110, 116, 128, .28);
}

.page-contact .contact-card__label {
  font-size: var(--fs-12);
  letter-spacing: .1em;
  color: var(--text-dim);
}

.page-contact .contact-card__value {
  font-size: var(--fs-14);
  line-height: 1.5;
  color: var(--text);
  letter-spacing: .02em;
  word-break: break-word;
}

.page-contact .contact-card__note {
  margin: 16px 0 0;
  padding-left: 12px;
  border-left: 2px solid var(--coral);
  font-size: var(--fs-14);
  line-height: 1.75;
  color: var(--text-dim);
}

.page-contact .contact-card__links {
  list-style: none;
  margin: 22px 0 0;
  padding: 18px 0 0;
  border-top: 1px solid rgba(110, 116, 128, .28);
  display: grid;
  gap: 12px;
}

/* ---------- 交互反馈 ---------- */
.page-contact a:focus-visible,
.page-contact .link-arrow:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
  border-radius: var(--radius-s);
}

.page-contact .link-arrow:hover {
  color: var(--coral);
}

/* ---------- 响应式 ---------- */
@media (min-width: 620px) {
  .page-contact .tracks {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-contact .reach-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-contact .visit-list__row {
    grid-template-columns: 128px minmax(0, 1fr);
    gap: 18px;
    align-items: baseline;
  }
}

@media (min-width: 900px) {
  .page-contact .contact-hero__grid {
    grid-template-columns: 1.06fr .94fr;
    gap: clamp(36px, 4.5vw, 62px);
  }

  .page-contact .visit-grid {
    grid-template-columns: 1.02fr .98fr;
    gap: 34px;
  }
}

@media (min-width: 1080px) {
  .page-contact .contact-body {
    grid-template-columns: minmax(0, 1fr) 336px;
    gap: clamp(38px, 4vw, 60px);
  }

  .page-contact .contact-aside {
    padding-top: 6px;
  }
}

@media (max-width: 480px) {
  .page-contact .contact-hero__title {
    font-size: 30px;
  }

  .page-contact .hero-stats {
    gap: 12px 22px;
  }

  .page-contact .flow__step {
    padding-left: 46px;
    margin-left: 16px;
  }

  .page-contact .contact-card {
    padding: 22px 18px 20px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .track,
  .page-contact .reach-item,
  .page-contact .checklist__label,
  .page-contact .flow__num {
    transition: none;
  }

  .page-contact .track:hover,
  .page-contact .reach-item:hover {
    transform: none;
  }
}