.page-contact {
  --contact-side: minmax(0, 4fr);
  --contact-main: minmax(0, 7fr);
  --contact-card-bg: #0E141C;
  padding-bottom: 0;
}

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(24px, 4vw, 56px) 0 clamp(40px, 6vw, 76px);
}

.page-contact .contact-hero__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(28px, 4vw, 52px);
  align-items: center;
}

.page-contact .breadcrumb {
  margin-bottom: 18px;
}

.page-contact .contact-hero__title {
  font-size: clamp(36px, 6vw, 72px);
  line-height: 1.05;
  letter-spacing: -0.02em;
  margin: 14px 0 18px;
}

.page-contact .contact-hero__lead {
  max-width: 54ch;
  color: var(--mist);
}

.page-contact .contact-hero__stats {
  list-style: none;
  margin: 30px 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 22px clamp(24px, 4vw, 48px);
}

.page-contact .contact-hero__stat {
  display: flex;
  flex-direction: column;
  gap: 6px;
  min-width: 108px;
}

.page-contact .contact-hero__stat-num {
  font-size: clamp(30px, 4.2vw, 46px);
  line-height: 1;
  color: var(--neon);
  letter-spacing: -0.02em;
}

.page-contact .contact-hero__stat-label {
  font-size: 12.5px;
  line-height: 1.5;
  color: var(--mist);
  letter-spacing: 0.04em;
}

.page-contact .contact-hero__visual {
  position: relative;
  background: var(--panel);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 30px), calc(100% - 30px) 100%, 0 100%);
}

.page-contact .contact-hero__img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 14 / 9;
  object-fit: cover;
  filter: saturate(0.92) contrast(1.04);
}

.page-contact .contact-hero__badge {
  position: absolute;
  left: 16px;
  bottom: 16px;
}

/* ---------- 主体左右分栏 ---------- */
.page-contact .contact-body {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(36px, 5vw, 64px);
  padding-bottom: clamp(24px, 4vw, 40px);
}

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

.page-contact .contact-block {
  position: relative;
}

.page-contact .contact-block + .contact-block {
  margin-top: clamp(48px, 7vw, 88px);
}

.page-contact .contact-block__head {
  margin-bottom: clamp(20px, 3vw, 32px);
}

.page-contact .contact-block__eyebrow {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 14px;
}

.page-contact .observe-mark {
  display: inline-block;
  width: 28px;
  height: 2px;
  background: var(--mist);
  transition: width 320ms ease, background 320ms ease;
}

.page-contact .is-current .observe-mark {
  width: 60px;
  background: var(--neon);
}

.page-contact .contact-block__intro {
  max-width: 62ch;
  margin: 12px 0 0;
  color: var(--mist);
  font-size: 15px;
  line-height: 1.75;
}

/* ---------- 合作方向 ---------- */
.page-contact .direction-list {
  border-top: 1px solid var(--line);
}

.page-contact .direction {
  border-bottom: 1px solid var(--line);
  transition: background 320ms ease;
}

.page-contact .direction[open] {
  background: linear-gradient(90deg, rgba(200, 255, 61, 0.06), rgba(200, 255, 61, 0) 62%);
}

.page-contact .direction__head {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: clamp(12px, 2vw, 22px);
  padding: clamp(18px, 2.4vw, 26px) clamp(8px, 1.4vw, 16px);
  cursor: pointer;
  list-style: none;
}

.page-contact .direction__head::-webkit-details-marker {
  display: none;
}

.page-contact .direction__no {
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--mist);
  transition: color 260ms ease;
}

.page-contact .direction[open] .direction__no {
  color: var(--neon);
}

.page-contact .direction__title {
  font-size: clamp(18px, 2.2vw, 26px);
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--white);
  line-height: 1.3;
}

.page-contact .direction__cue {
  width: 11px;
  height: 11px;
  border-right: 2px solid var(--mist);
  border-bottom: 2px solid var(--mist);
  transform: rotate(45deg);
  transition: transform 260ms ease, border-color 260ms ease;
  flex: none;
}

.page-contact .direction[open] .direction__cue {
  transform: rotate(-135deg) translate(-3px, -3px);
  border-color: var(--neon);
}

.page-contact .direction__body {
  display: grid;
  gap: 18px;
  padding: 0 clamp(8px, 1.4vw, 16px) clamp(22px, 3vw, 30px);
}

.page-contact .direction__text {
  margin: 0;
  font-size: 15px;
  line-height: 1.78;
  color: var(--mist);
  max-width: 60ch;
}

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

.page-contact .direction__specs li {
  position: relative;
  padding-left: 18px;
  font-size: 13.5px;
  line-height: 1.6;
  color: var(--white);
}

.page-contact .direction__specs li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.58em;
  width: 7px;
  height: 7px;
  background: var(--blue);
  transform: rotate(45deg);
}

.page-contact .direction-media {
  margin: clamp(28px, 4vw, 44px) 0 0;
}

.page-contact .direction-media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 26px), calc(100% - 26px) 100%, 0 100%);
}

.page-contact .direction-media__cap {
  margin-top: 12px;
  font-size: 12.5px;
  letter-spacing: 0.04em;
  color: var(--mist);
}

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

.page-contact .flow__item {
  position: relative;
  padding: 0 0 clamp(26px, 3.6vw, 38px) 58px;
}

.page-contact .flow__item::before {
  content: "";
  position: absolute;
  left: 17px;
  top: 6px;
  bottom: -6px;
  width: 1px;
  background: linear-gradient(180deg, var(--line), rgba(42, 52, 65, 0.2));
}

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

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

.page-contact .flow__no {
  position: absolute;
  left: 0;
  top: 0;
  width: 35px;
  height: 35px;
  border-radius: 50%;
  border: 1px solid var(--line);
  background: var(--ink);
  display: grid;
  place-items: center;
  font-family: var(--font-mono);
  font-size: 12.5px;
  color: var(--neon);
  letter-spacing: 0.04em;
}

.page-contact .flow__title {
  margin: 4px 0 8px;
  font-size: 17px;
  font-weight: 700;
  color: var(--white);
  letter-spacing: -0.01em;
}

.page-contact .flow__text {
  margin: 0;
  max-width: 60ch;
  font-size: 15px;
  line-height: 1.75;
  color: var(--mist);
}

.page-contact .flow__cycle {
  display: inline-block;
  margin-top: 10px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.1em;
  color: var(--orange);
  border-left: 2px solid var(--orange);
  padding-left: 10px;
}

/* ---------- 材料清单 ---------- */
.page-contact .checklist {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-contact .checklist__item {
  display: grid;
  grid-template-columns: 20px 1fr;
  gap: 14px;
  align-items: start;
  padding: 15px 18px;
  background: var(--panel);
  border-left: 2px solid var(--line);
  transition: border-color 260ms ease, background 260ms ease;
}

.page-contact .checklist__item:hover {
  border-left-color: var(--neon);
  background: var(--panel-2);
}

.page-contact .checklist__box {
  position: relative;
  width: 18px;
  height: 18px;
  margin-top: 2px;
  border: 1px solid var(--line);
  border-radius: 4px;
  flex: none;
}

.page-contact .checklist__box::after {
  content: "";
  position: absolute;
  left: 5px;
  top: 1px;
  width: 5px;
  height: 10px;
  border-right: 2px solid var(--neon);
  border-bottom: 2px solid var(--neon);
  transform: rotate(40deg);
}

.page-contact .checklist__text {
  font-size: 14.5px;
  line-height: 1.6;
  color: var(--white);
}

.page-contact .checklist__note {
  display: block;
  margin-top: 5px;
  font-size: 12.5px;
  line-height: 1.6;
  color: var(--mist);
}

/* ---------- 右侧联系卡 ---------- */
.page-contact .contact-card {
  position: relative;
  overflow: hidden;
  padding: clamp(20px, 3vw, 30px);
  background: linear-gradient(158deg, var(--panel-2), var(--contact-card-bg) 62%);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.page-contact .contact-card::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 2px;
  background: linear-gradient(90deg, var(--neon), rgba(200, 255, 61, 0) 72%);
}

.page-contact .contact-card__title {
  margin: 10px 0 20px;
  font-size: clamp(21px, 2.4vw, 27px);
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--white);
}

.page-contact .contact-card__list {
  margin: 0;
}

.page-contact .contact-card__row {
  padding: 13px 0;
  border-bottom: 1px dashed var(--line);
}

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

.page-contact .contact-card__key {
  font-size: 11.5px;
  letter-spacing: 0.16em;
  color: var(--mist);
  margin-bottom: 6px;
}

.page-contact .contact-card__value {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 14px;
  line-height: 1.6;
  color: var(--white);
  word-break: break-word;
}

.page-contact .contact-card__clock {
  margin-top: 20px;
  padding-top: 20px;
  border-top: 1px solid var(--line);
}

.page-contact .contact-card__clock-title {
  margin: 0 0 12px;
  font-size: 11.5px;
  letter-spacing: 0.16em;
  color: var(--mist);
}

.page-contact .clock__bar {
  position: relative;
  height: 6px;
  border-radius: 3px;
  background: var(--line);
  overflow: hidden;
}

.page-contact .clock__fill {
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, var(--neon-dim), var(--neon));
}

.page-contact .clock__labels {
  display: flex;
  justify-content: space-between;
  margin-top: 8px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.1em;
  color: var(--mist);
}

.page-contact .contact-card__note {
  margin: 14px 0 0;
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--mist);
}

.page-contact .contact-card__sla {
  list-style: none;
  margin: 20px 0 0;
  padding: 16px 0 0;
  border-top: 1px solid var(--line);
  display: grid;
  gap: 14px;
}

.page-contact .contact-card__sla-item {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 14px;
  align-items: center;
}

.page-contact .contact-card__sla-num {
  font-size: 30px;
  line-height: 1;
  color: var(--blue);
}

.page-contact .contact-card__sla-text {
  font-size: 12.5px;
  line-height: 1.6;
  color: var(--mist);
}

/* ---------- 收尾带 ---------- */
.page-contact .contact-outro {
  position: relative;
  margin-top: clamp(48px, 8vw, 96px);
  padding: clamp(54px, 8vw, 92px) 0 clamp(32px, 4vw, 52px);
  background: linear-gradient(122deg, rgba(200, 255, 61, 0.09), rgba(63, 169, 255, 0.05) 52%, rgba(5, 7, 10, 0) 100%);
}

.page-contact .contact-outro::before {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  height: 1px;
  background: linear-gradient(90deg, var(--neon), var(--line) 42%, rgba(42, 52, 65, 0));
  transform: rotate(-0.7deg);
  transform-origin: left center;
}

.page-contact .contact-outro__inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: 26px;
  align-items: end;
}

.page-contact .contact-outro__text {
  margin: 14px 0 0;
  max-width: 62ch;
  font-size: 15px;
  line-height: 1.78;
  color: var(--mist);
}

.page-contact .contact-outro__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.page-contact .contact-outro__meta {
  margin-top: clamp(34px, 5vw, 60px);
  padding-top: 18px;
  border-top: 1px solid var(--line);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 28px;
  font-size: 12.5px;
  letter-spacing: 0.05em;
  color: var(--mist);
}

.page-contact .contact-outro__link {
  color: var(--blue);
  text-decoration: none;
  border-bottom: 1px solid rgba(63, 169, 255, 0.35);
  transition: border-color 260ms ease, color 260ms ease;
}

.page-contact .contact-outro__link:hover {
  color: var(--neon);
  border-bottom-color: var(--neon);
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-contact .checklist {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    column-gap: 22px;
  }

  .page-contact .direction__body {
    grid-template-columns: minmax(0, 1.35fr) minmax(0, 1fr);
    gap: 24px 30px;
    padding-left: clamp(30px, 3.4vw, 48px);
  }
}

@media (min-width: 860px) {
  .page-contact .contact-hero__grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
  }

  .page-contact .contact-outro__inner {
    grid-template-columns: minmax(0, 1.45fr) auto;
  }
}

@media (min-width: 1024px) {
  .page-contact .contact-body {
    grid-template-columns: var(--contact-main) var(--contact-side);
    align-items: start;
    gap: clamp(40px, 5vw, 76px);
  }

  .page-contact .contact-body__aside {
    position: sticky;
    top: calc(var(--rail-h, 58px) + 26px);
  }
}

@media (max-width: 480px) {
  .page-contact .contact-hero__stats {
    gap: 18px 26px;
  }

  .page-contact .contact-hero__stat {
    min-width: 92px;
  }

  .page-contact .flow__item {
    padding-left: 48px;
  }

  .page-contact .flow__no {
    width: 30px;
    height: 30px;
    font-size: 11.5px;
  }

  .page-contact .flow__item::before {
    left: 14px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .observe-mark,
  .page-contact .direction,
  .page-contact .direction__cue,
  .page-contact .checklist__item,
  .page-contact .contact-outro__link {
    transition: none;
  }
}