.page-contact {
  --co-surface: #10151c;
  --co-line: rgba(242, 237, 228, .16);
  --co-line-soft: rgba(242, 237, 228, .08);
  background-color: var(--ink);
  color: var(--paper);
  padding-bottom: clamp(48px, 8vw, 96px);
  overflow-x: clip;
}

.page-contact .label--accent {
  color: var(--orange);
}

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

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  padding-block: clamp(22px, 4vw, 42px) clamp(34px, 6vw, 72px);
}

.page-contact .contact-hero__grid {
  display: grid;
  gap: clamp(24px, 4vw, 46px);
}

.page-contact .contact-hero__title {
  margin: 14px 0 18px;
  font-size: clamp(40px, 9vw, 84px);
  font-weight: 200;
  line-height: 1.04;
  letter-spacing: -.02em;
}

.page-contact .contact-hero__lead {
  margin: 0 0 22px;
  max-width: 42ch;
  font-size: clamp(16px, 2vw, 18px);
  line-height: 1.8;
  color: var(--cool);
}

.page-contact .contact-hero__points {
  list-style: none;
  margin: 0 0 26px;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-contact .contact-hero__points li {
  position: relative;
  padding-left: 24px;
  font-size: 15px;
  line-height: 1.7;
  color: var(--paper);
}

.page-contact .contact-hero__points li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .68em;
  width: 12px;
  height: 2px;
  background-color: var(--cyan);
}

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

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

.page-contact .media-frame {
  position: relative;
  display: block;
  margin: 0;
  overflow: hidden;
  border: 2px solid var(--co-line);
  background-color: var(--ink-2);
}

.page-contact .media-frame img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

.page-contact .media-frame__cap {
  display: block;
  padding: 10px 14px;
  border-top: 2px solid var(--co-line-soft);
  font-size: 12px;
  line-height: 1.6;
  letter-spacing: .04em;
  color: var(--cool);
}

/* ---------- 主体：左栏联系面板 + 右栏说明 ---------- */
.page-contact .contact-stage {
  padding-block: clamp(30px, 5vw, 64px);
  border-top: 2px solid rgba(242, 237, 228, .30);
}

.page-contact .contact-stage__grid {
  display: grid;
  gap: clamp(30px, 4vw, 56px);
}

.page-contact .contact-rail__title {
  margin: 0 0 16px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--rock);
}

.page-contact .contact-card {
  position: relative;
  margin-bottom: 14px;
  padding: clamp(16px, 2.4vw, 22px);
  background-color: var(--ink-2);
  border: 2px solid var(--co-line);
  transition: border-color var(--dur) var(--ease), transform var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}

.page-contact .contact-card::before {
  content: "";
  position: absolute;
  left: -2px;
  top: -2px;
  width: 4px;
  height: 28px;
  background-color: var(--rock);
}

.page-contact .contact-card--mail::before {
  background-color: var(--cyan);
}

.page-contact .contact-card--phone::before {
  background-color: var(--orange);
}

.page-contact .contact-card--addr::before {
  background-color: var(--clay);
}

.page-contact .contact-card:hover,
.page-contact .contact-card:focus-within {
  border-color: var(--cyan);
  transform: translate(-2px, -2px);
  box-shadow: var(--shadow-cyan);
}

.page-contact .contact-card__kicker {
  margin: 0 0 10px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .18em;
  color: var(--orange);
}

.page-contact .contact-card__value {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: clamp(15px, 3.2vw, 19px);
  font-weight: 600;
  line-height: 1.4;
  letter-spacing: .01em;
  word-break: break-word;
  color: var(--cyan);
}

.page-contact .contact-card--phone .contact-card__value {
  color: var(--orange);
}

.page-contact .contact-card__value--num {
  font-size: clamp(22px, 5vw, 30px);
  letter-spacing: .04em;
}

.page-contact .contact-card--addr .contact-card__value {
  font-family: var(--font-body);
  font-size: 16px;
  font-weight: 500;
  line-height: 1.72;
  letter-spacing: 0;
  color: var(--paper);
}

.page-contact .contact-card__use {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--cool);
}

/* ---------- 右栏章节 ---------- */
.page-contact .contact-block {
  margin-bottom: clamp(34px, 5vw, 58px);
}

.page-contact .contact-block:last-child {
  margin-bottom: 0;
}

.page-contact .contact-block__title {
  margin: 0 0 10px;
  font-size: clamp(24px, 3.4vw, 34px);
  font-weight: 300;
  letter-spacing: -.01em;
  line-height: 1.2;
}

.page-contact .contact-block__intro {
  margin: 0 0 20px;
  max-width: 60ch;
  font-size: 15px;
  line-height: 1.8;
  color: var(--cool);
}

.page-contact .contact-block__intro a,
.page-contact .route-item__body a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(0, 229, 255, .4);
  transition: border-color var(--dur) var(--ease), color var(--dur) var(--ease);
}

.page-contact .contact-block__intro a:hover,
.page-contact .route-item__body a:hover {
  border-bottom-color: var(--cyan);
}

/* ---------- 分类问答 ---------- */
.page-contact .route-item {
  margin-bottom: 10px;
  background-color: rgba(26, 32, 41, .62);
  border: 2px solid var(--co-line-soft);
  border-left: 4px solid var(--rock);
  transition: border-color var(--dur) var(--ease), background-color var(--dur) var(--ease);
}

.page-contact .route-item:hover,
.page-contact .route-item[open] {
  border-left-color: var(--cyan);
}

.page-contact .route-item[open] {
  background-color: var(--ink-2);
}

.page-contact .route-item > summary {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 16px;
  cursor: pointer;
  list-style: none;
  font-size: 16px;
  font-weight: 600;
  color: var(--paper);
}

.page-contact .route-item > summary::-webkit-details-marker {
  display: none;
}

.page-contact .route-item > summary::after {
  content: "+";
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 18px;
  line-height: 1;
  color: var(--cyan);
}

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

.page-contact .route-item__tag {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--rock);
}

.page-contact .route-item__body {
  padding: 0 16px 16px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--cool);
}

.page-contact .route-item__body p {
  margin: 0 0 8px;
}

.page-contact .route-item__body p:last-child {
  margin-bottom: 0;
}

/* ---------- 合作方向 ---------- */
.page-contact .coop-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 6px;
}

.page-contact .coop-item {
  padding: 16px 0 14px;
  border-bottom: 2px solid var(--co-line-soft);
  transition: border-color var(--dur) var(--ease), transform var(--dur) var(--ease);
}

.page-contact .coop-item:hover {
  border-bottom-color: var(--clay);
  transform: translateX(4px);
}

.page-contact .coop-item__name {
  display: inline-block;
  margin: 0;
  padding-bottom: 3px;
  font-size: 17px;
  font-weight: 600;
  color: var(--paper);
  border-bottom: 2px solid var(--clay);
}

.page-contact .coop-item__desc {
  margin: 10px 0 0;
  max-width: 62ch;
  font-size: 14px;
  line-height: 1.78;
  color: var(--cool);
}

/* ---------- 在线时段 ---------- */
.page-contact .contact-sla {
  padding: clamp(18px, 3vw, 28px);
  background-color: var(--blue);
  border: 2px solid var(--paper);
  box-shadow: var(--shadow-hard);
}

.page-contact .contact-sla__big {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: clamp(24px, 4.6vw, 40px);
  font-weight: 600;
  letter-spacing: -.01em;
  line-height: 1.1;
  color: var(--paper);
}

.page-contact .contact-sla__note {
  margin: 0 0 18px;
  max-width: 58ch;
  font-size: 15px;
  line-height: 1.8;
  color: rgba(242, 237, 228, .88);
}

.page-contact .contact-sla__facts {
  list-style: none;
  margin: 0 0 16px;
  padding: 16px 0 0;
  display: flex;
  flex-wrap: wrap;
  gap: 10px 26px;
  border-top: 2px solid rgba(242, 237, 228, .3);
}

.page-contact .contact-sla__facts li {
  display: flex;
  align-items: baseline;
  gap: 8px;
  font-size: 14px;
  color: rgba(242, 237, 228, .92);
}

.page-contact .contact-sla__num {
  font-family: var(--font-mono);
  font-size: 22px;
  font-weight: 600;
  line-height: 1;
  color: var(--cyan);
}

.page-contact .contact-sla__tip {
  margin: 0;
  font-size: 13px;
  line-height: 1.7;
  color: rgba(242, 237, 228, .78);
}

/* ---------- 底部地址带 ---------- */
.page-contact .contact-address {
  margin-top: clamp(34px, 5vw, 72px);
  padding-block: clamp(28px, 5vw, 56px);
  background-color: var(--co-surface);
  border-top: 2px solid rgba(242, 237, 228, .3);
  border-bottom: 2px solid var(--co-line-soft);
}

.page-contact .contact-address__grid {
  display: grid;
  gap: clamp(22px, 3.4vw, 42px);
}

.page-contact .contact-address__figure {
  border-color: rgba(0, 229, 255, .28);
}

.page-contact .contact-address__mark {
  display: block;
  width: 108px;
  height: 72px;
  margin-bottom: 16px;
}

.page-contact .contact-address__title {
  margin: 0 0 12px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--rock);
}

.page-contact .contact-address__value {
  margin: 0 0 14px;
  max-width: 26ch;
  font-size: clamp(18px, 2.6vw, 24px);
  font-weight: 500;
  line-height: 1.55;
  color: var(--paper);
}

.page-contact .contact-address__note {
  margin: 0 0 18px;
  max-width: 52ch;
  font-size: 14px;
  line-height: 1.8;
  color: var(--cool);
}

.page-contact .contact-address__legal {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--rock);
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-contact .coop-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 4px 30px;
  }
}

@media (min-width: 960px) {
  .page-contact .contact-hero__grid {
    grid-template-columns: minmax(0, 1.02fr) minmax(0, .98fr);
    align-items: end;
  }

  .page-contact .contact-address__grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, .95fr);
    align-items: center;
  }
}

@media (min-width: 1024px) {
  .page-contact .contact-stage__grid {
    grid-template-columns: minmax(280px, 350px) minmax(0, 1fr);
    align-items: start;
  }

  .page-contact .contact-rail {
    position: sticky;
    top: 96px;
  }
}

@media (max-width: 420px) {
  .page-contact .contact-sla__facts {
    gap: 12px 18px;
  }

  .page-contact .contact-sla__num {
    font-size: 20px;
  }
}
</final>