.page-contact {
  --pc-gap: clamp(18px, 2.4vw, 32px);
  --pc-num: clamp(13px, 1vw, 15px);
  background: var(--snow);
  color: var(--ink-text);
  font-family: var(--font-body);
  line-height: 1.8;
  letter-spacing: .01em;
  overflow-x: hidden;
}

.page-contact [data-section] {
  scroll-margin-top: calc(var(--topbar-h) + 72px);
}

/* ---------- 面包屑 ---------- */
.page-contact .pc-crumb {
  margin: 0 0 clamp(20px, 3vw, 34px);
}
.page-contact .pc-crumb .bb-breadcrumb__link,
.page-contact .pc-crumb .bb-breadcrumb__current {
  color: rgba(220, 232, 246, .62);
  font-size: 13px;
  letter-spacing: .04em;
}
.page-contact .pc-crumb .bb-breadcrumb__link:hover {
  color: var(--signal);
}

/* ---------- 首屏 ---------- */
.page-contact .pc-hero {
  position: relative;
  background: linear-gradient(158deg, var(--ink-950) 0%, var(--ink-800) 50%, var(--blue-700) 100%);
  color: var(--mist-200);
  padding: clamp(26px, 4vw, 46px) 0 clamp(30px, 4vw, 52px);
  isolation: isolate;
  overflow: hidden;
}
.page-contact .pc-hero__texture {
  position: absolute;
  inset: -20% -10% 0;
  z-index: -1;
  background-image:
    repeating-linear-gradient(115deg, var(--line-dark) 0 1px, transparent 1px 48px),
    repeating-linear-gradient(25deg, var(--line-dark) 0 1px, transparent 1px 48px);
  opacity: .55;
  pointer-events: none;
}
.page-contact .pc-hero__inner {
  position: relative;
}
.page-contact .pc-hero__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(24px, 3.4vw, 42px);
}
.page-contact .pc-kicker {
  display: inline-block;
  margin: 0 0 14px;
  color: var(--signal);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .18em;
}
.page-contact .pc-hero__title {
  font-family: var(--font-display);
  font-size: clamp(30px, 4.8vw, 58px);
  font-weight: 900;
  line-height: 1.06;
  letter-spacing: -.02em;
  color: var(--snow);
  margin: 0 0 18px;
  max-width: 17ch;
}
.page-contact .pc-hero__sub {
  margin: 0;
  max-width: 54ch;
  font-size: clamp(15px, 1.1vw, 17px);
  line-height: 1.85;
  color: rgba(220, 232, 246, .8);
}

.page-contact .pc-hero__facts {
  list-style: none;
  margin: 0;
  padding: 0 0 0 clamp(16px, 2.2vw, 30px);
  border-left: 1px solid var(--line-dark);
}
.page-contact .pc-fact {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 14px;
  align-items: baseline;
  padding: 12px 0;
  border-bottom: 1px solid var(--line-dark);
}
.page-contact .pc-fact:last-child {
  border-bottom: 0;
}
.page-contact .pc-fact__num {
  font-size: clamp(26px, 3vw, 38px);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -.02em;
  color: var(--signal);
}
.page-contact .pc-fact__txt {
  font-size: 13.5px;
  line-height: 1.65;
  color: rgba(220, 232, 246, .7);
}

.page-contact .pc-jump {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 8px 10px;
  margin: clamp(26px, 3.4vw, 42px) 0 0;
  padding: 0;
}
.page-contact .pc-jump a {
  display: inline-block;
  padding: 6px 14px;
  font-size: 12.5px;
  letter-spacing: .06em;
  color: rgba(220, 232, 246, .76);
  border: 1px solid var(--line-dark);
  text-decoration: none;
  transition: color .18s var(--ease), border-color .18s var(--ease), background-color .18s var(--ease);
}
.page-contact .pc-jump a:hover,
.page-contact .pc-jump a.is-active {
  color: var(--ink-950);
  background: var(--signal);
  border-color: var(--signal);
}

/* ---------- 合作路径 ---------- */
.page-contact .pc-paths {
  position: relative;
  background: linear-gradient(180deg, var(--blue-700) 0%, var(--ink-800) 22%, var(--ink-950) 100%);
  padding: clamp(34px, 5vw, 64px) 0 clamp(40px, 5.4vw, 78px);
  color: var(--mist-200);
}
.page-contact .pc-paths__head {
  display: flex;
  align-items: baseline;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: clamp(22px, 3vw, 36px);
}
.page-contact .pc-paths__num {
  font-size: 13px;
  letter-spacing: .2em;
  color: var(--signal);
}
.page-contact .pc-paths__title {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(22px, 2.7vw, 34px);
  font-weight: 800;
  line-height: 1.22;
  letter-spacing: -.015em;
  color: var(--snow);
  max-width: 26ch;
}

.page-contact .pc-paths__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--pc-gap);
  align-items: start;
}
.page-contact .pc-path {
  position: relative;
  padding: clamp(22px, 2.4vw, 30px) clamp(18px, 2vw, 26px) clamp(20px, 2.2vw, 26px);
  background: linear-gradient(165deg, rgba(30, 78, 140, .44), rgba(10, 22, 38, .78));
  border: 1px solid var(--line-dark);
  border-top: 3px solid var(--blue-500);
  box-shadow: 0 22px 44px -32px rgba(0, 0, 0, .95);
  transition: transform .26s var(--ease), border-top-color .26s var(--ease), box-shadow .26s var(--ease);
}
.page-contact .pc-path::after {
  content: "";
  position: absolute;
  top: -1px;
  right: -1px;
  width: 24px;
  height: 24px;
  background: var(--signal);
  clip-path: polygon(100% 0, 100% 100%, 0 0);
  opacity: .85;
}
.page-contact .pc-path:hover,
.page-contact .pc-path:focus-within {
  transform: translateY(-4px);
  border-top-color: var(--signal);
  box-shadow: 0 30px 54px -30px rgba(0, 0, 0, .95);
}
.page-contact .pc-path__tag {
  display: inline-block;
  margin-bottom: 14px;
  padding: 3px 10px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .06em;
  color: var(--neon);
  border: 1px solid rgba(111, 227, 166, .34);
}
.page-contact .pc-path__title {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-size: clamp(19px, 1.6vw, 24px);
  font-weight: 800;
  line-height: 1.28;
  letter-spacing: -.01em;
  color: var(--snow);
}
.page-contact .pc-path__body {
  margin: 0 0 16px;
  font-size: 14.5px;
  line-height: 1.78;
  color: rgba(220, 232, 246, .76);
}
.page-contact .pc-path__result {
  margin: 0;
  padding-top: 14px;
  border-top: 1px dashed var(--line-dark);
  font-size: 13px;
  line-height: 1.75;
  color: var(--signal-soft);
}
.page-contact .pc-path__fit {
  max-height: 0;
  opacity: 0;
  overflow: hidden;
  transition: max-height .3s var(--ease), opacity .3s var(--ease);
}
.page-contact .pc-path__fit > p {
  margin: 0;
  padding-top: 12px;
  font-size: 12.5px;
  line-height: 1.7;
  color: rgba(220, 232, 246, .6);
}
.page-contact .pc-path:hover .pc-path__fit,
.page-contact .pc-path:focus-within .pc-path__fit {
  max-height: 160px;
  opacity: 1;
}

.page-contact .pc-map {
  margin: clamp(26px, 3.6vw, 46px) 0 0;
}
.page-contact .pc-map__frame {
  display: block;
  position: relative;
  border: 1px solid var(--line-dark);
  background: linear-gradient(140deg, var(--ink-800), var(--ink-950));
  overflow: hidden;
}
.page-contact .pc-map__frame img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  opacity: .9;
}
.page-contact .pc-map figcaption {
  margin-top: 12px;
  font-size: 12.5px;
  line-height: 1.7;
  letter-spacing: .02em;
  color: rgba(220, 232, 246, .58);
}

/* ---------- 章节标题通用 ---------- */
.page-contact .pc-sec-head {
  display: flex;
  align-items: baseline;
  gap: 14px;
  flex-wrap: wrap;
  margin-bottom: clamp(18px, 2.4vw, 28px);
}
.page-contact .pc-sec-num {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .2em;
  color: var(--signal);
}
.page-contact .pc-sec-title {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(23px, 2.9vw, 38px);
  font-weight: 900;
  line-height: 1.14;
  letter-spacing: -.02em;
  color: var(--ink-text);
  max-width: 24ch;
}
.page-contact .pc-sec-title--light {
  color: var(--snow);
}

/* ---------- 可获得的支持 ---------- */
.page-contact .pc-gain {
  background: var(--snow);
  padding: clamp(46px, 6vw, 92px) 0;
}
.page-contact .pc-gain__grid {
  align-items: start;
}
.page-contact .pc-gain__lead {
  margin: 0 0 16px;
  font-size: 15px;
  line-height: 1.85;
  color: rgba(20, 38, 61, .74);
  max-width: 46ch;
}
.page-contact .pc-gain__lead:last-child {
  margin-bottom: 0;
}
.page-contact .pc-gain__list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid rgba(20, 38, 61, .12);
}
.page-contact .pc-gain__item {
  display: grid;
  grid-template-columns: 16px minmax(0, 1fr);
  gap: 14px;
  padding: 18px 0;
  border-bottom: 1px solid rgba(20, 38, 61, .12);
}
.page-contact .pc-gain__mark {
  width: 10px;
  height: 10px;
  margin-top: 9px;
  background: var(--signal);
  transform: skewX(-18deg);
}
.page-contact .pc-gain__name {
  margin: 0 0 4px;
  font-family: var(--font-display);
  font-size: 16.5px;
  font-weight: 800;
  letter-spacing: -.005em;
  color: var(--ink-text);
}
.page-contact .pc-gain__desc {
  margin: 0;
  font-size: 14px;
  line-height: 1.78;
  color: rgba(20, 38, 61, .7);
}

/* ---------- 合作流程 ---------- */
.page-contact .pc-flow {
  position: relative;
  background: var(--mist-200);
  padding: clamp(46px, 6vw, 92px) 0;
  overflow: hidden;
}
.page-contact .pc-flow__texture {
  position: absolute;
  inset: 0;
  background-image: repeating-linear-gradient(115deg, rgba(30, 78, 140, .08) 0 1px, transparent 1px 40px);
  pointer-events: none;
}
.page-contact .pc-flow__inner {
  position: relative;
}
.page-contact .pc-sec-head--flow {
  margin-bottom: clamp(26px, 3.4vw, 46px);
}
.page-contact .pc-flow__grid {
  align-items: start;
}
.page-contact .pc-track {
  list-style: none;
  margin: 0;
  padding: 0;
  position: relative;
  display: grid;
  grid-template-columns: 1fr;
  gap: 26px;
}
.page-contact .pc-step {
  position: relative;
  padding-right: 8px;
}
.page-contact .pc-step__num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  margin-bottom: 14px;
  border-radius: 50%;
  background: var(--snow);
  border: 1px solid var(--blue-500);
  color: var(--blue-700);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .04em;
  position: relative;
  z-index: 1;
}
.page-contact .pc-step:first-child .pc-step__num {
  background: var(--signal);
  border-color: var(--signal);
  color: var(--snow);
}
.page-contact .pc-step:last-child .pc-step__num {
  background: var(--blue-700);
  border-color: var(--blue-700);
  color: var(--snow);
}
.page-contact .pc-step__title {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 800;
  letter-spacing: -.005em;
  color: var(--ink-text);
}
.page-contact .pc-step__body {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.78;
  color: rgba(20, 38, 61, .72);
}
.page-contact .pc-step__out {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 8px;
  margin: 12px 0 0;
  padding-top: 10px;
  border-top: 1px dashed rgba(20, 38, 61, .2);
  font-size: 12.5px;
  line-height: 1.65;
  color: var(--blue-700);
}
.page-contact .pc-step__out span {
  font-family: var(--font-mono);
  letter-spacing: .08em;
  color: var(--signal);
}

.page-contact .pc-flow__media {
  margin: 0;
}
.page-contact .pc-flow__media img {
  display: block;
  width: 100%;
  height: auto;
  border: 1px solid rgba(20, 38, 61, .16);
  box-shadow: 0 24px 48px -34px rgba(10, 22, 38, .8);
}
.page-contact .pc-flow__media figcaption {
  margin-top: 12px;
  font-size: 12.5px;
  line-height: 1.7;
  color: rgba(20, 38, 61, .6);
}

/* ---------- 常见问答 ---------- */
.page-contact .pc-faq {
  background: var(--snow);
  padding: clamp(46px, 6vw, 92px) 0;
}
.page-contact .pc-faq__wrap {
  max-width: 900px;
}
.page-contact .pc-qa__list {
  border-top: 1px solid rgba(20, 38, 61, .12);
}
.page-contact .pc-qa {
  border-bottom: 1px solid rgba(20, 38, 61, .12);
  border-left: 3px solid transparent;
  background: transparent;
  transition: border-left-color .2s var(--ease), background-color .2s var(--ease);
}
.page-contact .pc-qa:hover {
  background: rgba(220, 232, 246, .38);
}
.page-contact .pc-qa[open] {
  border-left-color: var(--signal);
  background: #fff;
}
.page-contact .pc-qa__q {
  display: flex;
  align-items: baseline;
  gap: 14px;
  padding: 18px clamp(12px, 1.8vw, 22px);
  font-family: var(--font-display);
  font-size: clamp(15px, 1.3vw, 17px);
  font-weight: 800;
  letter-spacing: -.005em;
  color: var(--ink-text);
  cursor: pointer;
  list-style: none;
  outline-offset: -2px;
}
.page-contact .pc-qa__q::-webkit-details-marker {
  display: none;
}
.page-contact .pc-qa__mark {
  flex: none;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--signal);
}
.page-contact .pc-qa__a {
  margin: 0;
  padding: 0 clamp(12px, 1.8vw, 22px) 20px calc(clamp(12px, 1.8vw, 22px) + 26px);
  font-size: 14.5px;
  line-height: 1.82;
  color: rgba(20, 38, 61, .74);
}

/* ---------- 联系渠道 ---------- */
.page-contact .pc-contact {
  position: relative;
  background: linear-gradient(155deg, var(--ink-800) 0%, var(--ink-950) 76%, var(--ink-950) 100%);
  color: var(--mist-200);
  padding: clamp(48px, 6.4vw, 96px) 0 clamp(52px, 6.4vw, 100px);
  overflow: hidden;
}
.page-contact .pc-contact__dots {
  position: absolute;
  inset: 0;
  background-image: radial-gradient(rgba(138, 151, 168, .3) 1px, transparent 1px);
  background-size: 26px 26px;
  opacity: .45;
  pointer-events: none;
}
.page-contact .pc-contact__inner {
  position: relative;
}
.page-contact .pc-sec-head--dark .pc-sec-title {
  max-width: 22ch;
}
.page-contact .pc-contact__lead {
  margin: 0 0 clamp(24px, 3.2vw, 40px);
  max-width: 58ch;
  font-size: 15px;
  line-height: 1.85;
  color: rgba(220, 232, 246, .72);
}
.page-contact .pc-contact__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--pc-gap);
}
.page-contact .pc-ccard {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: clamp(22px, 2.6vw, 32px);
  background: rgba(10, 22, 38, .6);
  border: 1px solid var(--line-dark);
  box-shadow: 0 24px 46px -36px rgba(0, 0, 0, .95);
}
.page-contact .pc-ccard--mail {
  background: linear-gradient(150deg, rgba(30, 78, 140, .62), rgba(10, 22, 38, .88));
  border-color: rgba(63, 134, 216, .45);
}
.page-contact .pc-ccard--mail::after {
  content: "";
  position: absolute;
  top: -1px;
  right: -1px;
  width: 26px;
  height: 26px;
  background: var(--signal);
  clip-path: polygon(100% 0, 100% 100%, 0 0);
}
.page-contact .pc-ccard__label {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .18em;
  color: var(--signal);
}
.page-contact .pc-ccard__title {
  margin: 0;
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 800;
  letter-spacing: -.005em;
  color: var(--snow);
}
.page-contact .pc-ccard__mail {
  margin: 0;
  font-family: var(--font-mono);
  font-size: clamp(16px, 1.9vw, 25px);
  font-weight: 700;
  line-height: 1.3;
  letter-spacing: -.01em;
  color: var(--snow);
  word-break: break-all;
}
.page-contact .pc-ccard__tel {
  margin: 0;
  font-size: clamp(20px, 2.2vw, 28px);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: .04em;
  color: var(--neon);
}
.page-contact .pc-ccard__addr {
  margin: 0;
  font-size: 16px;
  line-height: 1.7;
  color: var(--snow);
}
.page-contact .pc-ccard__note {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.78;
  color: rgba(220, 232, 246, .66);
}
.page-contact .pc-ccard__hint {
  margin: auto 0 0;
  padding-top: 12px;
  border-top: 1px dashed var(--line-dark);
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--signal-soft);
}
.page-contact .pc-contact__tail {
  margin: clamp(26px, 3.4vw, 42px) 0 0;
  font-size: 14px;
  line-height: 1.85;
  color: rgba(220, 232, 246, .62);
}
.page-contact .pc-contact__tail a {
  color: var(--signal-soft);
  text-decoration: none;
  border-bottom: 1px solid rgba(255, 162, 77, .45);
  transition: color .18s var(--ease), border-color .18s var(--ease);
}
.page-contact .pc-contact__tail a:hover {
  color: var(--snow);
  border-bottom-color: var(--snow);
}

/* ---------- 响应式 ---------- */
@media (min-width: 700px) {
  .page-contact .pc-track {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 0;
  }
  .page-contact .pc-track::before {
    content: "";
    position: absolute;
    left: 22px;
    right: 22px;
    top: 21px;
    height: 2px;
    background: linear-gradient(90deg, var(--signal), var(--blue-500) 42%, var(--blue-700));
    opacity: .45;
  }
  .page-contact .pc-step {
    padding-right: clamp(12px, 1.6vw, 22px);
  }
}

@media (min-width: 860px) {
  .page-contact .pc-paths__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
  .page-contact .pc-path:nth-child(2) {
    margin-top: 22px;
  }
  .page-contact .pc-path:nth-child(3) {
    margin-top: 11px;
  }
}

@media (min-width: 900px) {
  .page-contact .pc-hero__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: clamp(28px, 4vw, 60px);
    align-items: end;
  }
}

@media (min-width: 820px) {
  .page-contact .pc-contact__grid {
    grid-template-columns: minmax(0, 2fr) minmax(0, 1fr) minmax(0, 1fr);
  }
}

@media (hover: none) {
  .page-contact .pc-path__fit {
    max-height: 160px;
    opacity: 1;
  }
  .page-contact .pc-path:hover {
    transform: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .pc-path,
  .page-contact .pc-path__fit,
  .page-contact .pc-qa,
  .page-contact .pc-jump a,
  .page-contact .pc-contact__tail a {
    transition: none;
  }
  .page-contact .pc-path:hover,
  .page-contact .pc-path:focus-within {
    transform: none;
  }
}
</main>