.page-contact {
  --pc-ink-cyan: #0F6F68;
  --pc-card-veil: rgba(11, 18, 48, 0.55);
  --pc-paper-line: rgba(27, 34, 51, 0.14);
  --pc-offset: 6px;
}

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  padding-block: 26px 46px;
  position: relative;
  overflow: hidden;
}

.page-contact .contact-hero::after {
  content: "";
  position: absolute;
  top: -60px;
  right: -120px;
  width: 340px;
  height: 340px;
  background: radial-gradient(circle at center, rgba(47, 227, 214, 0.16), transparent 68%);
  pointer-events: none;
}

.page-contact .contact-hero .breadcrumb {
  margin-bottom: 22px;
}

.page-contact .contact-hero .display-title {
  margin: 0 0 20px;
  font-size: clamp(40px, 9.4vw, 104px);
  line-height: 1.02;
  font-weight: 900;
  letter-spacing: -0.02em;
}

.page-contact .display-title__line {
  display: block;
}

.page-contact .display-title__line--accent {
  color: var(--cyan);
}

.page-contact .contact-hero .lede {
  max-width: 720px;
  margin: 0;
  color: var(--paper);
}

.page-contact .contact-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin: 26px 0 34px;
}

.page-contact .contact-hero__figure {
  margin: 0;
  max-width: 100%;
}

.page-contact .contact-hero__figure img {
  width: 100%;
  height: auto;
  object-fit: cover;
}

/* ---------- 咨询前准备 ---------- */
.page-contact .contact-prepare {
  padding-block: 52px;
}

.page-contact .contact-prepare h2,
.page-contact .contact-info h2,
.page-contact .contact-hours h2,
.page-contact .contact-coop h2,
.page-contact .contact-links h2 {
  margin: 10px 0 18px;
  font-size: clamp(28px, 5.2vw, 52px);
  line-height: 1.08;
  font-weight: 800;
  letter-spacing: -0.01em;
}

.page-contact .contact-prepare__lede {
  max-width: 640px;
}

.page-contact .contact-prepare__grid {
  display: grid;
  gap: 34px;
  margin-top: 32px;
}

.page-contact .prep-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-contact .prep-item {
  display: grid;
  grid-template-columns: 40px minmax(0, 1fr);
  gap: 4px 14px;
  padding: 20px 0;
  border-top: 1px solid var(--line);
}

.page-contact .prep-item:last-child {
  border-bottom: 1px solid var(--line);
}

.page-contact .prep-item__no {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--cyan);
  padding-top: 4px;
}

.page-contact .prep-item__body h3 {
  margin: 0 0 8px;
  font-size: 19px;
  font-weight: 700;
  color: var(--paper);
}

.page-contact .prep-item__body p {
  margin: 0;
  font-size: 16px;
  line-height: 1.75;
  color: var(--fog);
}

.page-contact .contact-format {
  position: relative;
  padding: 24px 20px;
  background: linear-gradient(155deg, rgba(47, 227, 214, 0.13), rgba(11, 18, 48, 0.65) 62%);
  border: 1px solid var(--line-cyan);
  border-radius: var(--radius);
  box-shadow: var(--pc-offset) var(--pc-offset) 0 rgba(47, 227, 214, 0.12);
}

.page-contact .contact-format__sample {
  margin: 12px 0 10px;
  font-family: var(--font-mono);
  font-size: clamp(20px, 4.4vw, 28px);
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--mint);
  word-break: break-all;
}

.page-contact .contact-format__hint {
  margin: 0 0 20px;
  font-size: 15px;
  line-height: 1.72;
  color: var(--fog);
}

.page-contact .contact-format__toggle {
  display: inline-block;
  padding: 9px 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--cyan);
  background: rgba(11, 18, 48, 0.5);
  border: 1px solid var(--line-cyan);
  border-radius: 2px;
  cursor: pointer;
  transition: background 0.2s var(--ease), color 0.2s var(--ease);
}

.page-contact .contact-format__toggle:hover,
.page-contact .contact-format__toggle:focus-visible {
  background: rgba(47, 227, 214, 0.16);
  color: var(--mint);
}

.page-contact .contact-format__panel {
  margin-top: 18px;
  padding-top: 16px;
  border-top: 1px dashed var(--line-cyan);
}

.page-contact .format-fields {
  list-style: none;
  margin: 0 0 10px;
  padding: 0;
}

.page-contact .format-fields li {
  display: grid;
  grid-template-columns: 74px minmax(0, 1fr);
  gap: 12px;
  padding: 9px 0;
  border-bottom: 1px solid var(--line-soft);
}

.page-contact .format-fields li:last-child {
  border-bottom: 0;
}

.page-contact .format-fields__k {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--cyan);
  letter-spacing: 0.06em;
}

.page-contact .format-fields__v {
  font-size: 14px;
  line-height: 1.7;
  color: var(--fog);
}

/* ---------- 联系方式 ---------- */
.page-contact .contact-info {
  padding-block: 54px;
}

.page-contact .contact-info__grid {
  display: grid;
  gap: 30px;
  margin-top: 28px;
}

.page-contact .contact-stack {
  display: grid;
  gap: 20px;
  min-width: 0;
}

.page-contact .contact-card {
  min-width: 0;
  padding: 22px 20px;
  background: var(--pc-card-veil);
  border: 1px solid var(--line);
  transition: transform 0.22s var(--ease), border-color 0.22s var(--ease);
}

.page-contact .contact-card:hover {
  transform: translateY(-2px);
  border-color: var(--cyan);
}

.page-contact .contact-card__value {
  margin: 12px 0 12px;
  font-family: var(--font-mono);
  font-size: clamp(19px, 4vw, 25px);
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--mint);
  word-break: break-word;
}

.page-contact .contact-card__value--text {
  font-family: var(--font-body);
  font-size: 17px;
  font-weight: 500;
  line-height: 1.7;
  letter-spacing: 0;
  color: var(--paper);
}

.page-contact .contact-card__desc {
  margin: 0 0 16px;
  font-size: 15px;
  line-height: 1.75;
  color: var(--fog);
}

.page-contact .contact-info__aside {
  display: grid;
  gap: 16px;
  align-content: start;
  min-width: 0;
}

.page-contact .contact-info__aside .figure-frame {
  margin: 0;
}

.page-contact .contact-info__aside img {
  width: 100%;
  height: auto;
  object-fit: cover;
}

.page-contact .contact-info__aside .data-note a {
  color: var(--cyan);
}

/* ---------- 回复时段 ---------- */
.page-contact .contact-hours {
  padding-block: 54px;
}

.page-contact .contact-hours__lede {
  max-width: 620px;
}

.page-contact .hours-bar {
  position: relative;
  margin: 58px 0 0;
}

.page-contact .hours-bar__flag {
  position: absolute;
  top: -24px;
  left: 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--mint);
}

.page-contact .hours-bar__track {
  position: relative;
  height: 16px;
  background: rgba(244, 246, 248, 0.07);
  border: 1px solid var(--line);
  border-radius: 2px;
  overflow: hidden;
}

.page-contact .hours-bar__fill {
  position: absolute;
  top: 0;
  bottom: 0;
  left: 37.5%;
  width: 37.5%;
  background: linear-gradient(90deg, var(--cyan), var(--mint));
  box-shadow: 0 0 20px rgba(47, 227, 214, 0.45);
}

.page-contact .hours-ticks {
  display: flex;
  justify-content: space-between;
  list-style: none;
  margin: 10px 0 0;
  padding: 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--fog);
}

.page-contact .channel-grid {
  display: grid;
  gap: 16px;
  margin-top: 40px;
}

.page-contact .channel-card {
  padding: 20px 18px;
  background: rgba(11, 18, 48, 0.46);
  border: 1px solid var(--line);
  border-left: 3px solid var(--cyan);
  border-radius: var(--radius);
  transition: transform 0.22s var(--ease), border-color 0.22s var(--ease);
}

.page-contact .channel-card:hover {
  transform: translateY(-2px);
  border-color: var(--line-cyan);
  border-left-color: var(--mint);
}

.page-contact .channel-card h3 {
  margin: 10px 0 10px;
  font-size: 18px;
  font-weight: 700;
  color: var(--paper);
}

.page-contact .channel-card p {
  margin: 0;
  font-size: 15px;
  line-height: 1.78;
  color: var(--fog);
}

/* ---------- 合作与内容嵌入 ---------- */
.page-contact .contact-coop {
  padding-block: 54px;
}

.page-contact .contact-coop__lede {
  max-width: 640px;
  color: var(--paper);
}

.page-contact .coop-grid {
  display: grid;
  gap: 20px;
  margin-top: 30px;
}

.page-contact .coop-card {
  min-width: 0;
  padding: 24px 20px;
  background: rgba(11, 18, 48, 0.38);
  border: 1px solid rgba(138, 243, 230, 0.3);
  border-radius: var(--radius);
  box-shadow: 6px 6px 0 rgba(11, 18, 48, 0.35);
  transition: transform 0.22s var(--ease), border-color 0.22s var(--ease);
}

.page-contact .coop-card:hover {
  transform: translateY(-2px);
  border-color: var(--mint);
}

.page-contact .coop-card h3 {
  margin: 0 0 12px;
  font-size: 21px;
  font-weight: 800;
  color: var(--mint);
}

.page-contact .coop-card p {
  margin: 0 0 14px;
  font-size: 15px;
  line-height: 1.78;
  color: var(--paper);
}

.page-contact .coop-card__ask {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--cyan) !important;
}

.page-contact .coop-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-contact .coop-list li {
  position: relative;
  padding: 8px 0 8px 20px;
  font-size: 15px;
  line-height: 1.7;
  color: var(--paper);
  border-bottom: 1px solid rgba(138, 243, 230, 0.16);
}

.page-contact .coop-list li:last-child {
  border-bottom: 0;
}

.page-contact .coop-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 16px;
  width: 8px;
  height: 1px;
  background: var(--cyan);
}

.page-contact .contact-coop__foot {
  margin: 26px 0 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--fog);
}

.page-contact .contact-coop__foot a {
  color: var(--mint);
}

/* ---------- 延伸阅读 ---------- */
.page-contact .contact-links {
  padding-block: 54px 60px;
  color: var(--graphite);
}

.page-contact .contact-links .section-index {
  color: var(--pc-ink-cyan);
}

.page-contact .contact-links h2 {
  color: var(--graphite);
}

.page-contact .contact-links__lede {
  max-width: 620px;
  color: var(--graphite);
}

.page-contact .link-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 14px;
  margin-top: 28px;
}

.page-contact .link-item {
  display: block;
  padding: 18px 16px;
  min-width: 0;
  background: rgba(255, 255, 255, 0.72);
  border: 1px solid var(--pc-paper-line);
  border-radius: var(--radius);
  text-decoration: none;
  transition: transform 0.22s var(--ease), border-color 0.22s var(--ease), background 0.22s var(--ease);
}

.page-contact .link-item:hover,
.page-contact .link-item:focus-visible {
  transform: translateY(-2px);
  border-color: var(--pc-ink-cyan);
  background: #ffffff;
}

.page-contact .link-item__k {
  display: block;
  margin-bottom: 8px;
  font-size: 17px;
  font-weight: 700;
  color: var(--graphite);
}

.page-contact .link-item__v {
  display: block;
  font-size: 14px;
  line-height: 1.7;
  color: #4A5570;
}

/* ---------- 平板及以上 ---------- */
@media (min-width: 760px) {
  .page-contact .contact-hero {
    padding-block: 34px 60px;
  }

  .page-contact .contact-prepare,
  .page-contact .contact-info,
  .page-contact .contact-hours,
  .page-contact .contact-coop {
    padding-block: 72px;
  }

  .page-contact .contact-links {
    padding-block: 72px 80px;
  }

  .page-contact .channel-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

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

/* ---------- 桌面 ---------- */
@media (min-width: 980px) {
  .page-contact .contact-prepare__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: 52px;
    align-items: start;
  }

  .page-contact .contact-info__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: 44px;
    align-items: start;
  }

  .page-contact .prep-item {
    grid-template-columns: 52px minmax(0, 1fr);
  }
}

/* ---------- 动效收敛 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-contact .contact-card,
  .page-contact .channel-card,
  .page-contact .coop-card,
  .page-contact .link-item {
    transition: none;
  }

  .page-contact .contact-card:hover,
  .page-contact .channel-card:hover,
  .page-contact .coop-card:hover,
  .page-contact .link-item:hover {
    transform: none;
  }
}