.page-contact {
  --pc-card: #0B2E52;
  --pc-edge: rgba(34, 224, 214, .16);
  --pc-pad: clamp(18px, 2.6vw, 28px);
  position: relative;
  overflow-x: clip;
  padding-bottom: clamp(40px, 7vw, 90px);
}

.page-contact::before {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  right: clamp(8px, 2.4vw, 26px);
  width: 1px;
  background: linear-gradient(180deg, transparent, rgba(34, 224, 214, .24) 10%, rgba(34, 224, 214, .24) 90%, transparent);
  pointer-events: none;
}

.page-contact .breadcrumb {
  padding-top: clamp(16px, 3vw, 30px);
}

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  padding-top: clamp(16px, 3vw, 28px);
}

.page-contact .contact-hero__title {
  margin: 14px 0 0;
  max-width: 22ch;
  font-family: var(--font-display);
  font-size: clamp(30px, 5.4vw, 58px);
  font-weight: 800;
  line-height: 1.08;
  letter-spacing: -.02em;
  color: var(--paper);
}

.page-contact .contact-hero__lede {
  margin: 18px 0 0;
  max-width: 34em;
  font-size: clamp(16px, 1.5vw, 18px);
  line-height: 1.75;
  color: var(--mist);
}

.page-contact .contact-hero__facts {
  list-style: none;
  margin: 24px 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 10px 22px;
  font-size: 14px;
  color: var(--mist);
}

.page-contact .contact-hero__facts li {
  display: flex;
  align-items: center;
  gap: 8px;
}

.page-contact .contact-hero__facts li::before {
  content: "";
  flex: none;
  width: 6px;
  height: 6px;
  background: var(--cyan);
}

.page-contact .contact-hero__facts .mono {
  color: var(--paper);
  font-size: 13px;
  letter-spacing: .04em;
}

/* ---------- 三条渠道 ---------- */
.page-contact .contact-channels {
  display: grid;
  gap: 14px;
  margin-top: 24px;
}

.page-contact .contact-channel {
  min-width: 0;
  padding: var(--pc-pad);
  background: var(--pc-card);
  border: 1px solid var(--pc-edge);
  border-radius: var(--radius-lg);
}

.page-contact .contact-channel--email {
  background: linear-gradient(158deg, #123C63 0%, #0B2E52 58%);
  border-color: rgba(34, 224, 214, .44);
  box-shadow: inset 0 0 0 1px rgba(34, 224, 214, .12), 0 18px 44px rgba(0, 0, 0, .34);
}

.page-contact .contact-channel__label {
  margin: 0;
  font-size: 12px;
  letter-spacing: .16em;
  color: var(--cyan);
}

.page-contact .contact-channel__value {
  margin: 12px 0 0;
  font-family: var(--font-mono);
  font-weight: 500;
  font-size: clamp(19px, 2.3vw, 25px);
  line-height: 1.35;
  letter-spacing: .01em;
  color: var(--paper);
  word-break: break-word;
}

.page-contact .contact-channel__value--sm {
  font-size: clamp(15px, 1.7vw, 18px);
  line-height: 1.65;
}

.page-contact .contact-channel__note {
  margin: 14px 0 0;
  max-width: 34em;
  font-size: 15px;
  line-height: 1.72;
  color: var(--mist);
}

.page-contact .contact-channel .tag {
  margin: 18px 0 0;
  display: inline-block;
}

@media (min-width: 920px) {
  .page-contact .contact-channels {
    grid-template-columns: 1.5fr 1fr 1fr;
    gap: 16px;
    align-items: start;
  }

  .page-contact .contact-channel--email {
    padding: clamp(26px, 3vw, 36px);
  }
}

/* ---------- 回复节奏 ---------- */
.page-contact .rhythm {
  display: grid;
  gap: 22px;
  margin-top: 24px;
}

.page-contact .rhythm__media,
.page-contact .rhythm__body {
  min-width: 0;
}

@media (min-width: 900px) {
  .page-contact .rhythm {
    grid-template-columns: minmax(220px, 300px) 1fr;
    gap: clamp(26px, 4vw, 52px);
    align-items: start;
  }
}

.page-contact .clock {
  margin-top: 4px;
}

.page-contact .clock__track {
  display: flex;
  gap: 2px;
  height: 26px;
  border-radius: 3px;
  overflow: hidden;
}

.page-contact .clock__slot {
  flex: 1 1 0;
  min-width: 0;
}

.page-contact .clock__slot--idle {
  background: var(--console);
}

.page-contact .clock__slot--on {
  background: var(--cyan);
}

.page-contact .clock__slot--defer {
  background: rgba(255, 138, 61, .58);
}

.page-contact .clock__axis {
  display: flex;
  justify-content: space-between;
  margin-top: 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .04em;
  color: var(--mist);
}

.page-contact .rhythm__list {
  list-style: none;
  margin: 26px 0 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-contact .rhythm__list li {
  display: grid;
  gap: 5px;
  padding: 14px 18px;
  background: rgba(11, 46, 82, .62);
  border-left: 2px solid var(--line-mid);
  border-radius: 0 var(--radius) var(--radius) 0;
  font-size: 15px;
  line-height: 1.7;
  color: var(--mist);
}

.page-contact .rhythm__list .mono {
  font-size: 13px;
  letter-spacing: .06em;
  color: var(--cyan);
}

/* ---------- 按诉求分流 ---------- */
.page-contact .filter-bar {
  margin: 22px 0;
}

.page-contact .ask-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

@media (min-width: 800px) {
  .page-contact .ask-list {
    grid-template-columns: repeat(3, 1fr);
  }
}

.page-contact .ask {
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 22px;
  background: var(--pc-card);
  border: 1px solid var(--pc-edge);
  border-top: 3px solid var(--cyan);
  border-radius: var(--radius);
}

.page-contact .ask .tag {
  align-self: flex-start;
}

.page-contact .ask__title {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(18px, 2vw, 22px);
  font-weight: 700;
  line-height: 1.35;
  color: var(--paper);
}

.page-contact .ask__desc {
  margin: 0;
  font-size: 15px;
  line-height: 1.72;
  color: var(--mist);
}

.page-contact .ask__points {
  list-style: none;
  margin: auto 0 0;
  padding: 14px 0 0;
  border-top: 1px dashed rgba(34, 224, 214, .22);
  display: grid;
  gap: 9px;
  font-size: 14px;
  line-height: 1.6;
  color: var(--paper);
}

.page-contact .ask__points li {
  position: relative;
  padding-left: 16px;
}

.page-contact .ask__points li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .72em;
  width: 7px;
  height: 1px;
  background: var(--cyan);
}

/* ---------- 收录自查清单 ---------- */
.page-contact .contact-narrow {
  max-width: 860px;
  margin-inline: auto;
}

.page-contact .checklist {
  padding: 0 clamp(18px, 2.4vw, 28px);
  background: var(--pc-card);
  border: 1px solid var(--pc-edge);
  border-radius: var(--radius-lg);
}

.page-contact .checklist summary {
  list-style: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 20px 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(17px, 1.9vw, 20px);
  line-height: 1.4;
  color: var(--paper);
}

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

.page-contact .checklist summary::after {
  content: "+";
  flex: none;
  font-family: var(--font-mono);
  font-size: 20px;
  color: var(--cyan);
}

.page-contact .checklist[open] summary::after {
  content: "–";
}

.page-contact .checklist__items {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
}

.page-contact .checklist__items li {
  display: grid;
  gap: 4px 18px;
  padding: 14px 0;
  border-top: 1px solid rgba(34, 224, 214, .12);
  font-size: 15px;
  line-height: 1.72;
  color: var(--mist);
}

@media (min-width: 660px) {
  .page-contact .checklist__items li {
    grid-template-columns: 168px 1fr;
    align-items: baseline;
  }
}

.page-contact .checklist__key {
  font-size: 13px;
  letter-spacing: .05em;
  color: var(--cyan);
}

.page-contact .checklist__note {
  margin: 12px 0 22px;
  font-size: 14px;
  line-height: 1.72;
  color: var(--mist);
}

/* ---------- 栏目与合作 ---------- */
.page-contact .coop {
  display: grid;
  gap: 24px;
}

@media (min-width: 900px) {
  .page-contact .coop {
    grid-template-columns: 1.55fr 1fr;
    gap: clamp(26px, 4vw, 54px);
    align-items: start;
  }
}

.page-contact .coop__lede {
  margin: 16px 0 0;
  max-width: 34em;
  font-size: 16px;
  line-height: 1.78;
  color: var(--mist);
}

.page-contact .coop__points {
  list-style: none;
  margin: 24px 0 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-contact .coop__points li {
  display: grid;
  gap: 6px;
  padding-left: 14px;
  border-left: 2px solid rgba(255, 138, 61, .52);
  font-size: 15px;
  line-height: 1.72;
  color: var(--mist);
}

.page-contact .coop__points .mono {
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--orange);
}

.page-contact .coop__links {
  margin: 26px 0 0;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.page-contact .coop__stats {
  display: grid;
  gap: 18px;
  padding: clamp(20px, 2.6vw, 28px);
  background: var(--glass);
  border: 1px solid var(--line-mid);
  border-radius: var(--radius-lg);
}

.page-contact .coop__stats .stat__value {
  display: block;
  font-size: clamp(24px, 3vw, 34px);
  color: var(--cyan);
}

.page-contact .coop__stats .stat__label {
  display: block;
  margin-top: 4px;
  font-size: 13px;
  color: var(--mist);
}

/* ---------- 先自助 ---------- */
.page-contact .self-help {
  list-style: none;
  margin: 24px 0 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

@media (min-width: 800px) {
  .page-contact .self-help {
    grid-template-columns: repeat(3, 1fr);
  }
}

.page-contact .self-help__item {
  min-width: 0;
  display: grid;
  gap: 10px;
  align-content: start;
  padding: 22px;
  background: rgba(11, 46, 82, .55);
  border: 1px solid var(--pc-edge);
  border-radius: var(--radius);
}

.page-contact .self-help__num {
  font-size: 12px;
  letter-spacing: .2em;
  color: var(--cyan);
}

.page-contact .self-help__title {
  margin: 0;
  font-family: var(--font-display);
  font-size: 19px;
  font-weight: 700;
  line-height: 1.35;
  color: var(--paper);
}

.page-contact .self-help__item p {
  margin: 0;
  font-size: 15px;
  line-height: 1.72;
  color: var(--mist);
}

.page-contact .self-help__link {
  justify-self: start;
  padding-bottom: 2px;
  font-size: 14px;
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(34, 224, 214, .38);
}

.page-contact .self-help__link:hover {
  color: var(--cyan-soft);
  border-bottom-color: var(--cyan-soft);
}

/* ---------- 收束 ---------- */
.page-contact .closing {
  padding: clamp(26px, 4vw, 44px);
  border-radius: var(--radius-lg);
  border: 1px solid rgba(34, 224, 214, .3);
  background: linear-gradient(135deg, rgba(34, 224, 214, .16), rgba(11, 46, 82, .92) 56%);
}

.page-contact .closing__title {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(20px, 2.6vw, 30px);
  font-weight: 700;
  line-height: 1.28;
  color: var(--paper);
}

.page-contact .closing p {
  margin: 14px 0 0;
  max-width: 34em;
  font-size: 15px;
  line-height: 1.75;
  color: var(--mist);
}

.page-contact .closing p.closing__mail {
  font-size: clamp(16px, 2vw, 20px);
  letter-spacing: .02em;
  color: var(--cyan);
  word-break: break-word;
}

@media (min-width: 700px) {
  .page-contact .closing p.closing__mail {
    margin-top: 18px;
  }
}

/* ---------- 动效 ---------- */
@media (prefers-reduced-motion: no-preference) {
  .page-contact .contact-channel,
  .page-contact .ask,
  .page-contact .self-help__item {
    transition: border-color .25s var(--ease), box-shadow .25s var(--ease);
  }

  .page-contact .ask:hover,
  .page-contact .self-help__item:hover {
    border-color: var(--line-strong);
  }
}

/* ---------- 窄屏兜底 ---------- */
@media (max-width: 640px) {
  .page-contact .contact-hero__facts {
    flex-direction: column;
    gap: 8px;
  }

  .page-contact .ask {
    padding: 18px;
  }

  .page-contact .clock__axis {
    font-size: 11px;
  }
}
<<<END>>>