.page-contact {
  --pc-hair: rgba(53, 224, 208, 0.3);
  --pc-line-soft: rgba(143, 160, 200, 0.18);
  --pc-cut: 18px;
  position: relative;
  isolation: isolate;
  padding: clamp(24px, 4vw, 48px) 0 clamp(72px, 9vw, 120px);
}

.page-contact::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background:
    radial-gradient(820px 400px at 10% -6%, rgba(53, 224, 208, 0.1), transparent 70%),
    radial-gradient(660px 380px at 92% 58%, rgba(255, 107, 74, 0.08), transparent 72%),
    radial-gradient(520px 320px at 50% 108%, rgba(245, 196, 81, 0.06), transparent 74%);
}

.page-contact > * {
  position: relative;
  z-index: 1;
}

.page-contact .wrap {
  width: min(1160px, 100% - 36px);
  margin-inline: auto;
}

@media (min-width: 760px) {
  .page-contact .wrap {
    width: min(1160px, 100% - 72px);
  }
}

/* ---- 面包屑 ---- */
.page-contact .breadcrumbs {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--c-mist);
  margin-bottom: var(--gap-3);
}

.page-contact .breadcrumbs a {
  color: var(--c-cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(53, 224, 208, 0.35);
}

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

/* ---- 首屏联系面板 ---- */
.page-contact .contact-hero {
  display: grid;
  gap: var(--gap-3);
}

.page-contact .kicker {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--c-coral);
  margin: 0;
}

.page-contact .contact-hero h1 {
  font-family: var(--font-display);
  font-size: clamp(30px, 6.4vw, 62px);
  line-height: 1.06;
  letter-spacing: -0.02em;
  color: var(--c-snow);
  margin: 0;
  max-width: 16ch;
}

.page-contact .contact-hero .lede {
  margin: 0;
  max-width: 60ch;
  color: var(--c-mist);
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.8;
}

.page-contact .contact-hero__panel {
  display: grid;
  gap: 0;
  margin-top: var(--gap-2);
  border: 1px solid var(--pc-hair);
  border-radius: var(--pc-cut);
  background: linear-gradient(155deg, rgba(19, 28, 66, 0.95), rgba(6, 10, 31, 0.96));
  box-shadow: 4px 4px 0 rgba(53, 224, 208, 0.16), inset 0 0 80px rgba(53, 224, 208, 0.07);
  overflow: hidden;
}

.page-contact .chan {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: clamp(18px, 3.2vw, 30px);
  border-bottom: 1px solid var(--pc-line-soft);
}

.page-contact .chan:last-child {
  border-bottom: 0;
}

.page-contact .chan__label {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--c-mist);
}

.page-contact .chan__value {
  display: block;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: clamp(17px, 4.2vw, 30px);
  font-weight: 700;
  line-height: 1.24;
  letter-spacing: -0.01em;
  color: var(--c-snow);
  overflow-wrap: anywhere;
}

.page-contact .chan--mail .chan__value {
  color: var(--c-cyan);
  text-shadow: 0 0 28px rgba(53, 224, 208, 0.35);
}

.page-contact .chan--phone .chan__value {
  color: var(--c-coral);
  text-shadow: 0 0 28px rgba(255, 107, 74, 0.32);
}

.page-contact .chan__note {
  color: var(--c-mist);
  font-size: 14px;
  line-height: 1.72;
  max-width: 48ch;
}

@media (min-width: 880px) {
  .page-contact .contact-hero__panel {
    grid-template-columns: 1fr 1fr;
  }

  .page-contact .chan--mail {
    grid-column: 1 / -1;
  }

  .page-contact .chan--phone {
    border-right: 1px solid var(--pc-line-soft);
    border-bottom: 0;
  }

  .page-contact .chan--live {
    border-bottom: 0;
  }
}

/* ---- 通用章节 ---- */
.page-contact .sec {
  margin-top: var(--gap-5);
}

.page-contact .sec__head {
  display: grid;
  gap: 10px;
  max-width: 62ch;
  padding-top: var(--gap-3);
  margin-bottom: var(--gap-4);
  border-top: 1px solid rgba(53, 224, 208, 0.22);
  transition: border-color 0.3s ease;
}

.page-contact .sec.is-current .sec__head {
  border-top-color: var(--c-cyan);
}

.page-contact .sec__title {
  font-family: var(--font-display);
  font-size: clamp(24px, 4.2vw, 40px);
  line-height: 1.16;
  letter-spacing: -0.02em;
  color: var(--c-snow);
  margin: 0;
}

.page-contact .sec__intro {
  margin: 0;
  max-width: 62ch;
  color: var(--c-mist);
  font-size: 16px;
  line-height: 1.8;
}

/* ---- 合作方向 ---- */
.page-contact .dirs {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: var(--gap-3);
}

@media (min-width: 760px) {
  .page-contact .dirs {
    grid-template-columns: repeat(2, 1fr);
  }
}

.page-contact .dir {
  display: grid;
  gap: 10px;
  align-content: start;
  padding: clamp(20px, 2.6vw, 28px);
  border: 1px solid var(--pc-line-soft);
  border-radius: var(--r-cut);
  background: linear-gradient(170deg, rgba(19, 28, 66, 0.72), rgba(6, 10, 31, 0.58));
  transition: border-color 0.25s ease, transform 0.25s ease;
}

.page-contact .dir:hover {
  border-color: rgba(53, 224, 208, 0.5);
  transform: translate(-2px, -2px);
}

.page-contact .dir__idx {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--c-coral);
}

.page-contact .dir__title {
  font-family: var(--font-display);
  font-size: clamp(18px, 2.3vw, 23px);
  line-height: 1.3;
  letter-spacing: -0.01em;
  color: var(--c-snow);
  margin: 0;
}

.page-contact .dir__text {
  margin: 0;
  color: var(--c-mist);
  font-size: 15px;
  line-height: 1.82;
}

/* ---- 推进流程 ---- */
.page-contact .flow__figure {
  margin: 0 0 var(--gap-4);
  border: 1px solid rgba(53, 224, 208, 0.2);
  border-radius: var(--r-cut);
  background: rgba(6, 10, 31, 0.62);
  overflow: hidden;
}

.page-contact .flow__figure img {
  display: block;
  width: 100%;
  height: auto;
}

.page-contact .flow__cap {
  padding: 12px 16px;
  border-top: 1px solid var(--pc-line-soft);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--c-mist);
}

.page-contact .flow__list {
  position: relative;
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: var(--gap-3);
}

.page-contact .flow__step {
  position: relative;
  z-index: 1;
}

.page-contact .flow__dot {
  display: block;
  width: 12px;
  height: 12px;
  margin-bottom: 14px;
  border-radius: 50%;
  border: 2px solid var(--c-cyan);
  background: var(--c-space);
  box-shadow: 0 0 0 4px rgba(53, 224, 208, 0.14);
}

.page-contact .flow__card {
  border: 1px solid var(--pc-line-soft);
  border-radius: var(--r-cut);
  background: linear-gradient(170deg, rgba(19, 28, 66, 0.86), rgba(6, 10, 31, 0.72));
  overflow: hidden;
  transition: border-color 0.25s ease, box-shadow 0.25s ease;
}

.page-contact .flow__card[open] {
  border-color: rgba(255, 107, 74, 0.5);
  box-shadow: 4px 4px 0 rgba(255, 107, 74, 0.2);
}

.page-contact .flow__summary {
  position: relative;
  display: grid;
  gap: 6px;
  padding: 16px 44px 16px 18px;
  list-style: none;
  cursor: pointer;
}

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

.page-contact .flow__summary::marker {
  content: "";
}

.page-contact .flow__summary::after {
  content: "+";
  position: absolute;
  top: 14px;
  right: 18px;
  font-family: var(--font-mono);
  font-size: 18px;
  line-height: 1;
  color: var(--c-cyan);
}

.page-contact .flow__card[open] .flow__summary::after {
  content: "–";
  color: var(--c-coral);
}

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

.page-contact .flow__title {
  font-family: var(--font-display);
  font-size: clamp(17px, 2.1vw, 21px);
  letter-spacing: -0.01em;
  color: var(--c-snow);
}

.page-contact .flow__time {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--c-mist);
}

.page-contact .flow__body {
  padding: 0 18px 18px;
  border-top: 1px solid var(--pc-line-soft);
  margin-top: 2px;
}

.page-contact .flow__body p {
  margin: 14px 0 0;
  color: var(--c-mist);
  font-size: 14.5px;
  line-height: 1.8;
}

@media (min-width: 920px) {
  .page-contact .flow__list {
    grid-template-columns: repeat(4, 1fr);
    gap: var(--gap-2);
    align-items: start;
    padding-top: 6px;
  }

  .page-contact .flow__list::before {
    content: "";
    position: absolute;
    left: 6%;
    right: 6%;
    top: 6px;
    height: 2px;
    background: linear-gradient(90deg, rgba(53, 224, 208, 0.15), var(--c-cyan) 22%, var(--c-coral) 68%, var(--c-gold));
    transform: rotate(9deg);
    transform-origin: left center;
    opacity: 0.55;
    pointer-events: none;
  }

  .page-contact .flow__step:nth-child(2) {
    margin-top: 52px;
  }

  .page-contact .flow__step:nth-child(3) {
    margin-top: 104px;
  }

  .page-contact .flow__step:nth-child(4) {
    margin-top: 156px;
  }

  .page-contact .flow__dot {
    margin-bottom: 10px;
  }
}

/* ---- 客服通道 ---- */
.page-contact .relay {
  display: grid;
  gap: var(--gap-4);
}

@media (min-width: 900px) {
  .page-contact .relay {
    grid-template-columns: 1.15fr 0.85fr;
    align-items: start;
    gap: var(--gap-4);
  }
}

.page-contact .relay__copy {
  display: grid;
  gap: var(--gap-2);
  align-content: start;
  padding-top: var(--gap-3);
  border-top: 1px solid rgba(53, 224, 208, 0.22);
}

.page-contact .relay__points {
  list-style: none;
  margin: 6px 0 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-contact .relay__points li {
  position: relative;
  padding-left: 22px;
  color: var(--c-snow);
  font-size: 15px;
  line-height: 1.78;
}

.page-contact .relay__points li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 11px;
  width: 10px;
  height: 2px;
  background: var(--c-cyan);
}

.page-contact .relay__link {
  margin: 6px 0 0;
  color: var(--c-mist);
  font-size: 14.5px;
  line-height: 1.8;
}

.page-contact .relay__link a {
  color: var(--c-cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(53, 224, 208, 0.4);
}

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

.page-contact .relay__figure {
  margin: 0;
  border: 1px solid rgba(255, 107, 74, 0.28);
  border-radius: var(--r-cut);
  background: rgba(6, 10, 31, 0.62);
  overflow: hidden;
}

.page-contact .relay__figure img {
  display: block;
  width: 100%;
  height: auto;
}

/* ---- 洽谈准备 ---- */
.page-contact .prep {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: var(--gap-2);
}

@media (min-width: 720px) {
  .page-contact .prep {
    grid-template-columns: repeat(2, 1fr);
    gap: 0;
    border-top: 1px solid var(--pc-line-soft);
  }
}

.page-contact .prep__item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 16px 0;
  border-bottom: 1px solid var(--pc-line-soft);
}

@media (min-width: 720px) {
  .page-contact .prep__item {
    padding: 18px 22px 18px 0;
  }

  .page-contact .prep__item:nth-child(2n) {
    padding-right: 0;
    padding-left: 22px;
    border-left: 1px solid var(--pc-line-soft);
  }
}

.page-contact .prep__box {
  flex: 0 0 auto;
  width: 14px;
  height: 14px;
  margin-top: 5px;
  border: 2px solid var(--c-cyan);
  border-radius: 3px;
  background: rgba(53, 224, 208, 0.12);
}

.page-contact .prep__item:nth-child(2n) .prep__box {
  border-color: var(--c-coral);
  background: rgba(255, 107, 74, 0.12);
}

.page-contact .prep__text {
  color: var(--c-mist);
  font-size: 15px;
  line-height: 1.78;
}

/* ---- 联系方式信息条 ---- */
.page-contact .info-bar {
  display: grid;
  gap: var(--gap-3);
  padding: clamp(20px, 3vw, 30px);
  border: 1px solid rgba(245, 196, 81, 0.28);
  border-radius: var(--r-cut);
  background: linear-gradient(120deg, rgba(19, 28, 66, 0.82), rgba(6, 10, 31, 0.88));
  box-shadow: inset 0 0 60px rgba(245, 196, 81, 0.05);
}

.page-contact .info-bar__col {
  display: grid;
  gap: 8px;
  align-content: start;
}

.page-contact .info-bar__label {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--c-gold);
}

.page-contact .info-bar__value {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: clamp(15px, 1.8vw, 19px);
  line-height: 1.5;
  color: var(--c-snow);
  overflow-wrap: anywhere;
}

@media (min-width: 860px) {
  .page-contact .info-bar {
    grid-template-columns: repeat(3, 1fr);
    gap: 0;
  }

  .page-contact .info-bar__col {
    padding: 0 clamp(18px, 2.4vw, 28px);
    border-left: 1px solid rgba(245, 196, 81, 0.35);
  }

  .page-contact .info-bar__col:first-child {
    padding-left: 0;
    border-left: 0;
  }

  .page-contact .info-bar__col:last-child {
    padding-right: 0;
  }
}

.page-contact .info-bar__note {
  margin: var(--gap-2) 0 0;
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 1.7;
  letter-spacing: 0.02em;
  color: var(--c-mist);
}

/* ---- 页内导航与返回顶部 ---- */
.page-contact .next-links {
  margin: var(--gap-5) 0 0;
  padding-top: var(--gap-3);
  border-top: 1px solid var(--pc-line-soft);
  color: var(--c-mist);
  font-size: 15px;
  line-height: 1.9;
}

.page-contact .next-links a {
  color: var(--c-cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(53, 224, 208, 0.4);
}

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

.page-contact .to-top {
  position: fixed;
  right: 16px;
  bottom: 20px;
  z-index: 40;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 14px;
  border: 1px solid rgba(143, 160, 200, 0.32);
  border-radius: 999px;
  background: rgba(6, 10, 31, 0.9);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--c-mist);
  text-decoration: none;
  transition: color 0.2s ease, border-color 0.2s ease;
}

.page-contact .to-top:hover {
  color: var(--c-cyan);
  border-color: var(--c-cyan);
}

.page-contact .to-top__line {
  display: block;
  width: 16px;
  height: 2px;
  background: linear-gradient(90deg, var(--c-cyan), var(--c-coral));
}

@media (min-width: 1024px) {
  .page-contact .to-top {
    right: 26px;
    bottom: 28px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .dir,
  .page-contact .flow__card,
  .page-contact .to-top,
  .page-contact .sec__head {
    transition: none;
  }
}
</PAGE_CSS>>>