.page-contact {
  --contact-rail-w: 232px;
  --contact-anchor-offset: 128px;
  color: var(--ink);
}

/* ---------- 首屏 ---------- */

.page-contact .contact-hero {
  position: relative;
  overflow: hidden;
  padding: 26px 0 52px;
}

.page-contact .contact-hero::before {
  content: "";
  position: absolute;
  top: -34%;
  right: -18%;
  width: 620px;
  height: 620px;
  background: radial-gradient(circle at center, rgba(124, 77, 255, 0.26), transparent 68%);
  pointer-events: none;
}

.page-contact .contact-hero::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(0, 229, 255, 0.35), transparent);
  pointer-events: none;
}

.page-contact .contact-hero .breadcrumb {
  position: relative;
  margin: 0 0 26px;
}

.page-contact .contact-hero__grid {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 26px;
  align-items: center;
}

.page-contact .contact-hero__media {
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--panel);
}

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

.page-contact .contact-hero__eyebrow {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--violet);
}

.page-contact .contact-hero h1 {
  margin: 14px 0 18px;
  font-family: var(--font-display);
  font-weight: 300;
  font-size: clamp(32px, 5.4vw, 62px);
  line-height: 1.1;
  letter-spacing: 0.005em;
  color: var(--ink);
}

.page-contact .contact-hero__lead {
  margin: 0;
  max-width: 62ch;
  font-size: 16px;
  line-height: 1.78;
  color: var(--mist);
}

.page-contact .contact-hero__flag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin: 22px 0 0;
  padding: 8px 15px;
  border: 1px solid rgba(43, 224, 168, 0.32);
  border-radius: 999px;
  background: rgba(43, 224, 168, 0.08);
  font-size: 13px;
  letter-spacing: 0.02em;
  color: var(--green);
}

.page-contact .contact-hero__flag .contact-num {
  font-size: 16px;
  color: var(--green);
}

/* ---------- 主体：左轨道 + 右内容 ---------- */

.page-contact .contact-main {
  padding: 40px 0 8px;
}

.page-contact .contact-main__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 26px;
  align-items: start;
}

.page-contact .contact-rail {
  padding: 18px 16px 20px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--glass);
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
}

.page-contact .contact-rail__head {
  margin: 0 0 14px;
  padding-left: 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--muted);
}

.page-contact .contact-rail__list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 6px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-contact .contact-rail__link {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 3px;
  padding: 10px 9px;
  border-left: 2px solid transparent;
  border-radius: 4px;
  color: var(--muted);
  text-decoration: none;
  transition: color var(--t-fast) var(--ease), border-color var(--t-fast) var(--ease), background var(--t-fast) var(--ease);
}

.page-contact .contact-rail__link:hover,
.page-contact .contact-rail__link.is-active {
  color: var(--ink);
  border-left-color: var(--cyan);
  background: rgba(0, 229, 255, 0.07);
}

.page-contact .contact-rail__idx {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--violet);
}

.page-contact .contact-rail__link.is-active .contact-rail__idx,
.page-contact .contact-rail__link:hover .contact-rail__idx {
  color: var(--cyan);
}

.page-contact .contact-rail__label {
  font-size: 13px;
  line-height: 1.45;
}

.page-contact .contact-stream {
  display: grid;
  gap: 20px;
  min-width: 0;
}

/* ---------- 内容卡片 ---------- */

.page-contact .contact-block {
  padding: 24px 20px 26px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(160deg, rgba(30, 20, 64, 0.9), rgba(20, 12, 43, 0.86));
  scroll-margin-top: var(--contact-anchor-offset);
}

.page-contact .contact-block__head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 12px;
  margin-bottom: 14px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--line);
}

.page-contact .contact-block__idx {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--cyan);
}

.page-contact .contact-block__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 400;
  font-size: clamp(20px, 2.5vw, 27px);
  line-height: 1.3;
  color: var(--ink);
}

.page-contact .contact-block p {
  margin: 0 0 12px;
  font-size: 15.5px;
  line-height: 1.78;
  color: var(--ink);
}

.page-contact .contact-block p:last-child {
  margin-bottom: 0;
}

.page-contact .contact-block a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(0, 229, 255, 0.34);
  transition: border-color var(--t-fast) var(--ease), color var(--t-fast) var(--ease);
}

.page-contact .contact-block a:hover {
  color: var(--cyan);
  border-bottom-color: var(--cyan);
}

.page-contact .contact-block__note {
  margin-top: 16px;
  padding: 14px 16px;
  border-left: 2px solid var(--magenta);
  border-radius: 0 var(--radius) var(--radius) 0;
  background: rgba(255, 46, 147, 0.06);
}

.page-contact .contact-block__note p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--mist);
}

.page-contact .contact-block__tail {
  margin-top: 16px;
  padding-top: 14px;
  border-top: 1px solid var(--line);
  font-size: 14px;
  line-height: 1.7;
  color: var(--muted);
}

/* 等宽数字 */

.page-contact .contact-num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-weight: 500;
  color: var(--magenta);
}

/* 邮箱 / 电话 / 地址 */

.page-contact .contact-detail {
  display: grid;
  gap: 10px;
  margin: 18px 0 0;
  padding: 0;
  list-style: none;
}

.page-contact .contact-detail__row {
  display: grid;
  gap: 6px;
  padding: 15px 16px 16px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(11, 7, 22, 0.55);
  transition: border-color var(--t) var(--ease), background var(--t) var(--ease), transform var(--t) var(--ease);
}

.page-contact .contact-detail__row:hover {
  transform: translateY(-2px);
  border-color: var(--line-strong);
  background: rgba(30, 20, 64, 0.7);
}

.page-contact .contact-detail__label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--violet);
}

.page-contact .contact-detail__value {
  font-size: 15.5px;
  line-height: 1.6;
  color: var(--ink);
  word-break: break-word;
}

.page-contact .contact-detail__value a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(0, 229, 255, 0.36);
}

.page-contact .contact-detail__value a:hover {
  border-bottom-color: var(--cyan);
}

.page-contact .contact-detail__note {
  font-size: 13.5px;
  line-height: 1.72;
  color: var(--muted);
}

/* 合作需求卡片 */

.page-contact .contact-cards {
  display: grid;
  gap: 10px;
  margin: 20px 0;
  padding: 0;
  list-style: none;
}

.page-contact .contact-cards__item {
  padding: 16px 16px 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(11, 7, 22, 0.58);
  transition: transform var(--t) var(--ease), border-color var(--t) var(--ease), background var(--t) var(--ease);
}

.page-contact .contact-cards__item:hover {
  transform: translateY(-2px);
  border-color: var(--line-strong);
  background: rgba(30, 20, 64, 0.72);
}

.page-contact .contact-cards__title {
  margin: 0 0 8px;
  font-size: 16px;
  font-weight: 500;
  line-height: 1.45;
  color: var(--ink);
}

.page-contact .contact-cards__item p {
  margin: 0;
  font-size: 14px;
  line-height: 1.72;
  color: var(--mist);
}

/* 处理顺序时间线 */

.page-contact .contact-flow {
  display: grid;
  gap: 0;
  margin: 20px 0 0;
  padding: 0;
  list-style: none;
}

.page-contact .contact-flow__step {
  position: relative;
  display: grid;
  grid-template-columns: 44px minmax(0, 1fr);
  gap: 16px;
  padding-bottom: 22px;
}

.page-contact .contact-flow__step::before {
  content: "";
  position: absolute;
  left: 21px;
  top: 46px;
  bottom: 0;
  width: 1px;
  background: linear-gradient(180deg, rgba(124, 77, 255, 0.5), rgba(124, 77, 255, 0));
}

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

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

.page-contact .contact-flow__num {
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  border: 1px solid var(--line-strong);
  border-radius: 50%;
  background: rgba(124, 77, 255, 0.14);
  font-family: var(--font-mono);
  font-size: 14px;
  font-variant-numeric: tabular-nums;
  color: var(--cyan);
}

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

.page-contact .contact-block .contact-flow__title {
  margin: 9px 0 6px;
  font-size: 16.5px;
  font-weight: 500;
  line-height: 1.4;
  color: var(--ink);
}

.page-contact .contact-block .contact-flow__step p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.74;
  color: var(--mist);
}

/* ---------- 服务范围带 ---------- */

.page-contact .contact-coverage {
  margin-top: 44px;
  padding: 44px 0 56px;
  border-top: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(20, 12, 43, 0.9), rgba(11, 7, 22, 0.6));
}

.page-contact .contact-coverage__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 26px;
  align-items: center;
}

.page-contact .contact-coverage__eyebrow {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--violet);
}

.page-contact .contact-coverage__title {
  margin: 12px 0 16px;
  font-family: var(--font-display);
  font-weight: 300;
  font-size: clamp(24px, 3.4vw, 40px);
  line-height: 1.16;
  color: var(--ink);
}

.page-contact .contact-coverage__body p {
  margin: 0 0 12px;
  font-size: 15px;
  line-height: 1.78;
  color: var(--mist);
}

.page-contact .contact-coverage__body a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(0, 229, 255, 0.34);
}

.page-contact .contact-coverage__body a:hover {
  border-bottom-color: var(--cyan);
}

.page-contact .contact-coverage__stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin: 22px 0 0;
  padding: 0;
  list-style: none;
}

.page-contact .contact-coverage__stat {
  display: grid;
  gap: 2px;
  padding: 14px 14px 15px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(11, 7, 22, 0.55);
}

.page-contact .contact-coverage__stat .contact-num {
  font-size: 26px;
  line-height: 1.1;
}

.page-contact .contact-coverage__stat-label {
  font-size: 12.5px;
  letter-spacing: 0.02em;
  color: var(--muted);
}

.page-contact .contact-coverage__media {
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--panel);
}

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

/* ---------- 响应式 ---------- */

@media (min-width: 620px) {
  .page-contact .contact-block {
    padding: 28px 28px 30px;
  }

  .page-contact .contact-coverage__stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-contact .contact-hero {
    padding: 36px 0 70px;
  }

  .page-contact .contact-hero__grid {
    grid-template-columns: 5fr 7fr;
    gap: 52px;
  }

  .page-contact .contact-coverage__grid {
    grid-template-columns: 6fr 6fr;
    gap: 48px;
  }
}

@media (min-width: 960px) {
  .page-contact .contact-main__grid {
    grid-template-columns: var(--contact-rail-w) minmax(0, 1fr);
    gap: 52px;
  }

  .page-contact .contact-rail {
    position: sticky;
    top: 118px;
    padding: 20px 16px 22px;
  }

  .page-contact .contact-rail__list {
    grid-template-columns: minmax(0, 1fr);
    gap: 2px;
  }

  .page-contact .contact-rail__link {
    grid-template-columns: 32px minmax(0, 1fr);
    gap: 10px;
    align-items: baseline;
    padding: 11px 10px;
  }

  .page-contact .contact-flow {
    margin-top: 24px;
  }
}

@media (min-width: 1100px) {
  .page-contact .contact-cards {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 12px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .contact-detail__row,
  .page-contact .contact-cards__item,
  .page-contact .contact-rail__link,
  .page-contact .contact-block a,
  .page-contact .contact-coverage__body a {
    transition: none;
  }

  .page-contact .contact-detail__row:hover,
  .page-contact .contact-cards__item:hover {
    transform: none;
  }
}