.page-contact {
  --contact-line: var(--line-700);
  background: var(--ink-900);
}

/* ---------- 框景首屏 ---------- */
.page-contact .contact-hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  border-bottom: 1px solid var(--line-700);
}

.page-contact .contact-hero__frame {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.page-contact .contact-hero__img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: 50% 60%;
  opacity: 0.4;
  filter: saturate(0.45) contrast(1.15);
}

.page-contact .contact-hero__scrim {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(120% 90% at 82% 8%, rgba(123, 92, 255, 0.24), transparent 58%),
    linear-gradient(180deg, rgba(5, 7, 14, 0.78) 0%, rgba(5, 7, 14, 0.9) 58%, var(--ink-900) 100%);
}

.page-contact .contact-hero__mesh {
  position: absolute;
  inset: 0;
  opacity: 0.45;
  background-image:
    repeating-linear-gradient(0deg, rgba(34, 48, 76, 0.6) 0 1px, transparent 1px 48px),
    repeating-linear-gradient(90deg, rgba(34, 48, 76, 0.6) 0 1px, transparent 1px 48px);
}

.page-contact .contact-hero__inner {
  position: relative;
  z-index: 1;
  padding-top: var(--s2);
  padding-bottom: var(--s6);
}

.page-contact .contact-hero__eyebrow {
  margin: var(--s3) 0 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--lime);
}

.page-contact .contact-hero__title {
  margin: var(--s2) 0 0;
  max-width: 15em;
  font-family: var(--font-display);
  font-size: clamp(30px, 6.6vw, 62px);
  line-height: 0.98;
  letter-spacing: -0.02em;
  color: var(--white);
}

.page-contact .contact-hero__lead {
  margin-top: var(--s2);
  max-width: 60ch;
  font-size: 16px;
  line-height: 1.75;
  color: rgba(233, 238, 247, 0.78);
}

/* ---------- 联系方式卡 ---------- */
.page-contact .contact-card {
  margin-top: var(--s4);
  border: 1px solid var(--line-700);
  border-left: 3px solid var(--lime);
  background: rgba(11, 18, 32, 0.9);
  box-shadow: var(--shadow);
  backdrop-filter: blur(6px);
}

.page-contact .contact-card__head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 6px 16px;
  padding: 14px 20px;
  border-bottom: 1px solid var(--line-700);
}

.page-contact .contact-card__title {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--lime);
}

.page-contact .contact-card__meta {
  margin: 0;
  font-size: 12px;
  color: var(--muted);
}

.page-contact .contact-card__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
}

.page-contact .contact-item {
  padding: 18px 20px;
  border-top: 1px solid var(--line-700);
}

.page-contact .contact-card__list > .contact-item:first-child {
  border-top: 0;
}

.page-contact .contact-item__k {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--muted);
}

.page-contact .contact-item__v {
  margin: 8px 0 0;
  font-size: 16px;
  line-height: 1.5;
  color: var(--white);
  word-break: break-word;
}

.page-contact .contact-item__v--mono {
  font-family: var(--font-mono);
  letter-spacing: -0.01em;
}

.page-contact .contact-item__v a {
  color: var(--white);
  text-decoration: none;
  border-bottom: 1px dashed var(--line-700);
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease);
}

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

.page-contact .contact-item__hint {
  margin: 8px 0 0;
  font-size: 12.5px;
  line-height: 1.65;
  color: var(--muted);
}

/* ---------- 渠道分栏 ---------- */
.page-contact .split {
  display: grid;
  gap: var(--s3);
}

.page-contact .split__col > h3 {
  margin: 0 0 var(--s2);
  padding-left: 14px;
  border-left: 3px solid var(--lime);
  font-family: var(--font-display);
  font-size: clamp(19px, 3.2vw, 26px);
  line-height: 1.16;
  letter-spacing: -0.01em;
  color: var(--white);
}

.page-contact .split__col--call > h3 {
  border-left-color: var(--violet);
}

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

.page-contact .mail-item {
  display: grid;
  grid-template-columns: 34px 1fr;
  gap: 4px 12px;
  padding: 14px 0;
  border-top: 1px dashed rgba(34, 48, 76, 0.95);
}

.page-contact .mail-list > .mail-item:first-child {
  border-top: 0;
  padding-top: 0;
}

.page-contact .mail-item__idx {
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.9;
  color: var(--lime);
}

.page-contact .mail-item__title {
  margin: 0;
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.01em;
  color: var(--white);
}

.page-contact .mail-item__desc {
  margin: 6px 0 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--muted);
}

.page-contact .mail-figure {
  margin: var(--s3) 0 0;
}

/* ---------- 电话面板 ---------- */
.page-contact .call-panel {
  border: 1px solid var(--line-700);
  border-top: 3px solid var(--violet);
  padding: var(--s2);
  background: linear-gradient(180deg, rgba(123, 92, 255, 0.12), rgba(11, 18, 32, 0.72));
}

.page-contact .call-panel__flag {
  display: inline-block;
  margin: 0;
  padding: 4px 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--ink-900);
  background: var(--violet);
}

.page-contact .call-panel__num {
  margin: var(--s2) 0 0;
  font-family: var(--font-mono);
  font-size: clamp(24px, 6vw, 32px);
  line-height: 1.1;
  letter-spacing: -0.01em;
  color: var(--white);
}

.page-contact .call-panel__num a {
  color: inherit;
  text-decoration: none;
  border-bottom: 2px solid rgba(123, 92, 255, 0.6);
}

.page-contact .call-panel__num a:hover,
.page-contact .call-panel__num a:focus-visible {
  border-bottom-color: var(--lime);
  color: var(--lime);
}

.page-contact .call-list {
  list-style: none;
  margin: var(--s2) 0 0;
  padding: 0;
}

.page-contact .call-list__item {
  position: relative;
  padding: 10px 0 10px 20px;
  font-size: 14px;
  line-height: 1.7;
  color: rgba(233, 238, 247, 0.86);
  border-top: 1px dashed rgba(34, 48, 76, 0.95);
}

.page-contact .call-list > .call-list__item:first-child {
  border-top: 0;
}

.page-contact .call-list__item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 19px;
  width: 8px;
  height: 1px;
  background: var(--cyan);
}

.page-contact .call-panel__sub {
  margin: var(--s2) 0 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--muted);
}

.page-contact .prep-list {
  list-style: none;
  margin: 10px 0 0;
  padding: 0;
}

.page-contact .prep-list__item {
  display: grid;
  grid-template-columns: 24px 1fr;
  gap: 10px;
  padding: 8px 0;
  font-size: 14px;
  line-height: 1.65;
  color: rgba(233, 238, 247, 0.86);
}

.page-contact .prep-list__idx {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--violet);
  filter: brightness(1.35);
}

.page-contact .call-panel__foot {
  margin: var(--s2) 0 0;
  padding-top: 12px;
  border-top: 1px solid var(--line-700);
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--muted);
}

/* ---------- 合作方向 ---------- */
.page-contact .coop {
  display: grid;
  gap: 1px;
  border: 1px solid var(--line-700);
  background: var(--line-700);
}

.page-contact .coop__item {
  padding: var(--s3) var(--s2);
  background: var(--card-900);
  transition: background 0.25s var(--ease);
}

.page-contact .coop__item:hover {
  background: var(--panel-900);
}

.page-contact .coop__num {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--lime);
}

.page-contact .coop__title {
  margin: 12px 0 0;
  font-family: var(--font-display);
  font-size: clamp(18px, 2.6vw, 22px);
  line-height: 1.2;
  color: var(--white);
}

.page-contact .coop__desc {
  margin: 10px 0 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--muted);
}

.page-contact .coop__need {
  list-style: none;
  margin: var(--s2) 0 0;
  padding: 12px 0 0;
  border-top: 1px solid var(--line-700);
}

.page-contact .coop__need-item {
  position: relative;
  padding: 5px 0 5px 16px;
  font-size: 13px;
  line-height: 1.65;
  color: rgba(233, 238, 247, 0.8);
}

.page-contact .coop__need-item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 13px;
  width: 6px;
  height: 6px;
  background: var(--lime);
}

/* ---------- 快速入口 ---------- */
.page-contact .routes {
  border-top: 1px solid var(--line-700);
  padding-top: var(--s2);
}

.page-contact .routes__title {
  margin: 0 0 var(--s2);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--muted);
}

.page-contact .routes__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0;
}

.page-contact .routes__item {
  border-bottom: 1px dashed rgba(34, 48, 76, 0.9);
}

.page-contact .routes__item .index-link {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 0;
  color: var(--white);
  text-decoration: none;
  font-size: 15px;
  transition: color 0.2s var(--ease);
}

.page-contact .routes__item .index-link__idx {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--lime);
}

.page-contact .routes__item .index-link:hover,
.page-contact .routes__item .index-link:focus-visible {
  color: var(--lime);
}

/* ---------- 备案信息条 ---------- */
.page-contact .registry {
  position: relative;
  display: grid;
  border: 1px solid var(--line-700);
  background: var(--panel-900);
}

.page-contact .registry::before {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: -7px;
  height: 6px;
  background: repeating-linear-gradient(90deg, var(--line-700) 0 1px, transparent 1px 14px);
}

.page-contact .registry__cell {
  padding: var(--s2);
  border-top: 1px solid var(--line-700);
}

.page-contact .registry__cell:first-child {
  border-top: 0;
}

.page-contact .registry__k {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--muted);
}

.page-contact .registry__v {
  margin: 8px 0 0;
  font-size: 15px;
  line-height: 1.6;
  color: var(--white);
}

.page-contact .registry__v--mono {
  font-family: var(--font-mono);
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-contact .coop__need {
    display: grid;
    gap: 0 16px;
  }

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

  .page-contact .registry__cell:nth-child(2) {
    border-top: 0;
  }

  .page-contact .registry__cell:nth-child(odd) {
    border-right: 1px solid var(--line-700);
  }
}

@media (min-width: 768px) {
  .page-contact .routes__list {
    grid-template-columns: repeat(auto-fit, minmax(190px, 1fr));
    gap: 0 24px;
  }
}

@media (min-width: 900px) {
  .page-contact .contact-hero__inner {
    padding-top: var(--s3);
    padding-bottom: var(--s8);
  }

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

  .page-contact .contact-item {
    border-top: 0;
    border-left: 1px solid var(--line-700);
  }

  .page-contact .contact-card__list > .contact-item:first-child {
    border-left: 0;
  }

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

@media (min-width: 1024px) {
  .page-contact .split {
    grid-template-columns: 7fr 5fr;
    gap: var(--s4);
    align-items: start;
  }

  .page-contact .registry {
    grid-template-columns: repeat(4, 1fr);
  }

  .page-contact .registry__cell {
    border-top: 0;
    border-right: 1px solid var(--line-700);
  }

  .page-contact .registry__cell:nth-child(odd) {
    border-right: 1px solid var(--line-700);
  }

  .page-contact .registry__cell:last-child {
    border-right: 0;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact [data-reveal] {
    opacity: 1;
    transform: none;
  }

  .page-contact .contact-item__v a,
  .page-contact .coop__item,
  .page-contact .routes__item .index-link {
    transition: none;
  }
}