.page-contact {
  --pc-line: rgba(42, 58, 94, .68);
  --pc-line-soft: rgba(42, 58, 94, .42);
  --pc-surface: rgba(10, 18, 38, .58);
  padding-top: clamp(18px, 3.4vw, 42px);
  padding-bottom: clamp(56px, 9vw, 128px);
  color: var(--ice);
}

.page-contact .breadcrumbs {
  margin-bottom: clamp(22px, 3.6vw, 40px);
}

.page-contact .pc-layout {
  align-items: start;
}

/* ---------- 首屏 ---------- */
.page-contact .pc-hero {
  max-width: 68ch;
}

.page-contact .pc-hero__title {
  margin: 12px 0 18px;
  font-family: var(--font-wide);
  font-size: clamp(30px, 5.2vw, 54px);
  font-weight: 300;
  line-height: 1.16;
  letter-spacing: .02em;
}

.page-contact .pc-hero__lead {
  margin: 0;
  max-width: 62ch;
  font-size: clamp(16px, 1.5vw, 17.5px);
  line-height: 1.85;
  color: var(--mist);
}

.page-contact .pc-hero__facts {
  display: flex;
  flex-wrap: wrap;
  gap: 10px clamp(18px, 3vw, 40px);
  margin: clamp(22px, 3.4vw, 34px) 0 0;
  padding: 16px 0 0;
  list-style: none;
  border-top: 1px solid var(--pc-line);
}

.page-contact .pc-hero__fact {
  display: flex;
  flex-direction: column;
  gap: 4px;
  min-width: 0;
}

.page-contact .pc-hero__fact-k {
  font-size: 11px;
  letter-spacing: .14em;
  color: var(--mist);
}

.page-contact .pc-hero__fact-v {
  font-size: 15px;
  letter-spacing: .02em;
  color: var(--lime);
  overflow-wrap: anywhere;
}

/* ---------- 区块骨架 ---------- */
.page-contact .pc-section {
  margin-top: clamp(64px, 10vw, 128px);
}

.page-contact .pc-section__head {
  max-width: 62ch;
  margin-bottom: clamp(22px, 3.2vw, 36px);
}

.page-contact .pc-section__title {
  margin: 10px 0 12px;
  font-family: var(--font-wide);
  font-size: clamp(23px, 3.2vw, 33px);
  font-weight: 400;
  line-height: 1.3;
  letter-spacing: .02em;
}

.page-contact .pc-section__lead {
  margin: 0;
  font-size: 15.5px;
  line-height: 1.85;
  color: var(--mist);
}

/* ---------- 渠道卡 ---------- */
.page-contact .pc-channels__figure {
  margin: 0 0 var(--gap);
  aspect-ratio: 5 / 3;
  border: 1px solid var(--pc-line);
  border-radius: 16px;
  overflow: hidden;
  background:
    linear-gradient(140deg, rgba(53, 230, 255, .10), rgba(110, 91, 255, .10) 52%, rgba(255, 61, 174, .10));
}

.page-contact .pc-channels__figure img,
.page-contact .pc-flow__figure img {
  display: block;
  width: 100%;
  height: 100%;
  max-width: 100%;
  object-fit: cover;
}

.page-contact .pc-channels {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--gap);
}

.page-contact .pc-channel {
  position: relative;
  padding: clamp(20px, 3vw, 30px);
  border-radius: 16px;
  overflow: hidden;
  transition: border-color .3s var(--ease), box-shadow .3s var(--ease);
}

.page-contact .pc-channel:hover,
.page-contact .pc-channel:focus-within {
  border-color: var(--cyan);
  box-shadow: 0 0 0 1px rgba(53, 230, 255, .14), 0 20px 48px -34px rgba(53, 230, 255, .7);
}

.page-contact .pc-channel--mail {
  border-color: rgba(53, 230, 255, .42);
}

.page-contact .pc-channel--mail::after {
  content: "";
  position: absolute;
  inset: -40% -12% auto -12%;
  height: 78%;
  background: radial-gradient(58% 100% at 26% 0%, rgba(53, 230, 255, .20), transparent 72%);
  pointer-events: none;
}

.page-contact .pc-channel__head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin-bottom: 12px;
}

.page-contact .pc-channel__title {
  margin: 0;
  font-size: clamp(18px, 2.2vw, 21px);
  font-weight: 600;
  letter-spacing: .02em;
}

.page-contact .pc-channel__desc {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--mist);
}

.page-contact .pc-channel__num {
  margin: 0 0 12px;
  font-size: clamp(24px, 3.4vw, 34px);
  letter-spacing: .04em;
  color: var(--lime);
  overflow-wrap: anywhere;
}

.page-contact .pc-channel__addr {
  margin: 0 0 12px;
  font-size: clamp(16px, 2vw, 19px);
  line-height: 1.7;
  letter-spacing: .02em;
  color: var(--ice);
}

.page-contact .pc-channel__meta {
  list-style: none;
  margin: 20px 0 0;
  padding: 0;
  border-top: 1px solid var(--pc-line);
}

.page-contact .pc-channel__meta li {
  display: flex;
  justify-content: space-between;
  gap: 14px;
  padding: 10px 0;
  border-bottom: 1px solid var(--pc-line-soft);
  font-size: 14px;
}

.page-contact .pc-channel__k {
  flex: 0 0 auto;
  color: var(--mist);
}

.page-contact .pc-channel__v {
  text-align: right;
  color: var(--ice);
  overflow-wrap: anywhere;
}

.page-contact .pc-channel__scope {
  max-height: 0;
  margin: 0;
  overflow: hidden;
  opacity: 0;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--mist);
  transition: max-height .38s var(--ease), opacity .3s var(--ease), margin .38s var(--ease);
}

.page-contact .pc-channel:hover .pc-channel__scope,
.page-contact .pc-channel:focus-within .pc-channel__scope {
  max-height: 160px;
  margin-top: 14px;
  opacity: 1;
}

@media (hover: none) {
  .page-contact .pc-channel__scope {
    max-height: none;
    margin-top: 14px;
    opacity: 1;
  }
}

/* 邮箱复制 */
.page-contact .pc-mail-copy {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 8px 14px;
  width: 100%;
  margin-top: 20px;
  padding: 14px 16px;
  border: 1px solid var(--pc-line);
  border-radius: 12px;
  background: linear-gradient(100deg, rgba(53, 230, 255, .12), rgba(110, 91, 255, .09) 55%, rgba(255, 61, 174, .09));
  color: var(--ice);
  font: inherit;
  text-align: left;
  cursor: pointer;
  transition: border-color .26s var(--ease), background .26s var(--ease);
}

.page-contact .pc-mail-copy:hover,
.page-contact .pc-mail-copy:focus-visible {
  border-color: var(--cyan);
}

.page-contact .pc-mail-copy .copy-mail__key {
  font-family: var(--font-mono);
  font-size: clamp(14px, 1.7vw, 17px);
  letter-spacing: .01em;
  overflow-wrap: anywhere;
}

.page-contact .pc-mail-copy .copy-mail__hint {
  font-size: 12px;
  letter-spacing: .04em;
  color: var(--mist);
}

.page-contact .pc-mail-copy.is-done .copy-mail__hint {
  color: var(--lime);
}

/* ---------- 合作方向 ---------- */
.page-contact .pc-directions {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--pc-line);
}

.page-contact .pc-direction {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: clamp(14px, 2.4vw, 28px);
  padding: clamp(18px, 2.6vw, 26px) clamp(0px, 1vw, 12px);
  border-bottom: 1px solid var(--pc-line);
  transition: background .28s var(--ease);
}

.page-contact .pc-direction:hover {
  background: rgba(53, 230, 255, .05);
}

.page-contact .pc-direction__num {
  padding-top: 6px;
  font-size: 13px;
  letter-spacing: .12em;
  color: var(--cyan);
}

.page-contact .pc-direction__title {
  margin: 0 0 8px;
  font-size: clamp(17px, 2.1vw, 21px);
  font-weight: 600;
  letter-spacing: .02em;
}

.page-contact .pc-direction__body p {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--mist);
}

/* ---------- 时效与范围 ---------- */
.page-contact .pc-scope {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--gap);
}

.page-contact .pc-scope__card {
  padding: clamp(20px, 3vw, 28px);
  border-radius: 16px;
}

.page-contact .pc-scope__card--in {
  border-left: 2px solid var(--cyan);
}

.page-contact .pc-scope__card--out {
  border-left: 2px solid var(--amber);
}

.page-contact .pc-scope__title {
  margin: 0;
  font-size: clamp(16px, 2vw, 19px);
  font-weight: 600;
  letter-spacing: .02em;
}

.page-contact .pc-scope__list {
  list-style: none;
  margin: 16px 0 0;
  padding: 0;
  display: grid;
  gap: 11px;
}

.page-contact .pc-scope__list li {
  position: relative;
  padding-left: 20px;
  font-size: 15px;
  line-height: 1.75;
  color: var(--ice);
}

.page-contact .pc-scope__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .62em;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--cyan);
}

.page-contact .pc-scope__card--out .pc-scope__list li::before {
  border-radius: 2px;
  background: var(--amber);
}

/* ---------- 流程 ---------- */
.page-contact .pc-flow__figure {
  margin: 0 0 var(--gap);
  aspect-ratio: 12 / 7;
  border: 1px solid var(--pc-line);
  border-radius: 16px;
  overflow: hidden;
  background:
    linear-gradient(120deg, rgba(110, 91, 255, .12), rgba(53, 230, 255, .09) 50%, rgba(201, 255, 69, .07));
}

.page-contact .pc-flow {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 12px;
}

.page-contact .pc-flow__item {
  position: relative;
  border: 1px solid var(--pc-line);
  border-radius: 14px;
  background: var(--pc-surface);
  overflow: hidden;
  transition: border-color .28s var(--ease);
}

.page-contact .pc-flow__item::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 2px;
  background: linear-gradient(90deg, var(--cyan), var(--violet) 55%, var(--magenta));
  opacity: .55;
}

.page-contact .pc-flow__item:hover,
.page-contact .pc-flow__item:focus-within {
  border-color: var(--cyan);
}

.page-contact .pc-flow__trigger {
  display: flex;
  align-items: center;
  gap: 12px;
  width: 100%;
  padding: 18px 16px 16px;
  border: 0;
  background: none;
  color: var(--ice);
  font: inherit;
  text-align: left;
  cursor: pointer;
}

.page-contact .pc-flow__num {
  flex: 0 0 auto;
  font-size: 17px;
  letter-spacing: .04em;
  color: var(--lime);
}

.page-contact .pc-flow__label {
  flex: 1 1 auto;
  font-size: 15px;
  font-weight: 600;
  letter-spacing: .02em;
}

.page-contact .pc-flow .accordion__content {
  padding: 0 16px 18px;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--mist);
}

.page-contact .pc-flow .accordion__content p {
  margin: 0 0 10px;
}

.page-contact .pc-flow .accordion__content p:last-child {
  margin-bottom: 0;
}

.page-contact .pc-flow .accordion__content a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(53, 230, 255, .34);
}

.page-contact .pc-flow__eta {
  display: flex;
  gap: 9px;
  align-items: baseline;
  padding-top: 10px;
  border-top: 1px dashed var(--pc-line);
  color: var(--ice);
}

.page-contact .pc-flow__eta-k {
  flex: 0 0 auto;
  font-size: 11px;
  letter-spacing: .12em;
  color: var(--cyan);
}

/* ---------- 备案条 ---------- */
.page-contact .pc-record {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  border: 1px solid var(--pc-line);
  border-radius: 14px;
  background: var(--pc-line);
  overflow: hidden;
}

.page-contact .pc-record__cell {
  display: flex;
  flex-direction: column;
  gap: 7px;
  padding: 16px 18px;
  background: rgba(10, 18, 38, .94);
}

.page-contact .pc-record__k {
  font-size: 11px;
  letter-spacing: .14em;
  color: var(--mist);
}

.page-contact .pc-record__v {
  font-size: 15px;
  line-height: 1.75;
  color: var(--ice);
  overflow-wrap: anywhere;
}

.page-contact .pc-record__v a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(53, 230, 255, .34);
}

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

/* ---------- 页内目录 ---------- */
.page-contact .pc-index {
  padding: 14px;
  border: 1px solid var(--pc-line);
  border-radius: 14px;
  background: var(--pc-surface);
}

.page-contact .pc-index__title {
  margin: 0 0 10px;
  font-size: 11px;
  letter-spacing: .16em;
  color: var(--mist);
}

.page-contact .pc-index__list {
  display: flex;
  gap: 8px;
  margin: 0;
  padding: 0 0 8px;
  list-style: none;
  overflow-x: auto;
  scrollbar-width: none;
}

.page-contact .pc-index__list::-webkit-scrollbar {
  display: none;
}

.page-contact .pc-index__link {
  display: flex;
  align-items: baseline;
  gap: 8px;
  padding: 9px 12px;
  border: 1px solid var(--pc-line);
  border-radius: 10px;
  color: var(--mist);
  font-size: 13.5px;
  white-space: nowrap;
  text-decoration: none;
  transition: color .25s var(--ease), border-color .25s var(--ease), background .25s var(--ease);
}

.page-contact .pc-index__link:hover,
.page-contact .pc-index__link:focus-visible {
  color: var(--ice);
  border-color: var(--cyan);
  background: rgba(53, 230, 255, .08);
}

.page-contact .pc-index__num {
  font-size: 11px;
  letter-spacing: .08em;
  color: var(--cyan);
}

.page-contact .pc-index__foot {
  margin: 10px 0 0;
  padding-top: 12px;
  border-top: 1px solid var(--pc-line-soft);
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--mist);
}

/* ---------- 响应式 ---------- */
@media (min-width: 760px) {
  .page-contact .pc-scope {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-contact .pc-record {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-contact .pc-record__cell--wide {
    grid-column: 1 / -1;
  }
}

@media (min-width: 860px) {
  .page-contact .pc-channels {
    grid-template-columns: minmax(0, 1.35fr) minmax(0, 1fr);
    grid-template-areas:
      "mail phone"
      "mail addr";
  }

  .page-contact .pc-channel--mail {
    grid-area: mail;
  }

  .page-contact .pc-channel--phone {
    grid-area: phone;
  }

  .page-contact .pc-channel--addr {
    grid-area: addr;
  }
}

@media (min-width: 900px) {
  .page-contact .pc-flow {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 14px;
    align-items: start;
  }
}

@media (min-width: 1025px) {
  .page-contact .pc-index {
    position: sticky;
    top: calc(var(--topbar-h) + 22px);
    padding: 18px;
    backdrop-filter: blur(6px);
  }

  .page-contact .pc-index__list {
    flex-direction: column;
    gap: 6px;
    padding-bottom: 0;
    overflow: visible;
  }

  .page-contact .pc-index__link {
    padding: 10px 12px;
    white-space: normal;
  }
}

@media (max-width: 700px) {
  .page-contact .pc-flow__figure {
    aspect-ratio: 16 / 10;
  }

  .page-contact .pc-channels__figure {
    aspect-ratio: 4 / 3;
  }

  .page-contact .pc-channel__meta li {
    flex-direction: column;
    gap: 4px;
  }

  .page-contact .pc-channel__v {
    text-align: left;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .pc-channel,
  .page-contact .pc-channel__scope,
  .page-contact .pc-flow__item,
  .page-contact .pc-direction,
  .page-contact .pc-index__link,
  .page-contact .pc-mail-copy {
    transition: none;
  }
}