.page-contact {
  --ct-gap: clamp(18px, 3vw, 28px);
  --ct-line-dark: rgba(11, 14, 19, 0.14);
  --ct-body-paper: #39424e;
}

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  padding-top: clamp(26px, 5vw, 56px);
  padding-bottom: clamp(48px, 7vw, 96px);
}

.page-contact .contact-hero .crumb {
  margin-bottom: clamp(28px, 5vw, 56px);
}

.page-contact .hero-grid {
  display: grid;
  gap: clamp(22px, 4vw, 42px);
}

.page-contact .hero-grid .display--xl {
  font-size: clamp(34px, 6.4vw, 72px);
  line-height: 1.06;
  letter-spacing: -0.02em;
  margin: 10px 0 0;
}

.page-contact .hero-grid__note {
  max-width: 44ch;
}

.page-contact .hero-grid__note .lede {
  margin: 0;
  color: var(--mist);
  font-size: var(--step-lg);
  line-height: 1.75;
}

@media (min-width: 900px) {
  .page-contact .hero-grid {
    grid-template-columns: repeat(12, minmax(0, 1fr));
    gap: 0 24px;
    align-items: end;
  }
  .page-contact .hero-grid__title {
    grid-column: 1 / span 7;
  }
  .page-contact .hero-grid__note {
    grid-column: 9 / span 4;
    padding-bottom: 12px;
  }
}

.page-contact .contact-hero__frame {
  position: relative;
  margin: clamp(40px, 7vw, 88px) 0 0;
  aspect-ratio: 16 / 9;
  border-radius: var(--r-lg);
  overflow: hidden;
}

.page-contact .contact-hero__frame img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  max-width: 100%;
}

.page-contact .contact-hero__frame .media-frame__note {
  position: absolute;
  left: clamp(14px, 3vw, 32px);
  bottom: clamp(14px, 2.5vw, 26px);
  margin: 0;
  padding: 8px 15px;
  border-radius: 999px;
  background: rgba(10, 26, 47, 0.82);
  border: 1px solid var(--orbit);
  color: var(--mist);
  font-size: var(--step-xs);
  letter-spacing: 0.08em;
  line-height: 1.4;
}

@media (min-width: 900px) {
  .page-contact .contact-hero__frame {
    aspect-ratio: 21 / 9;
  }
}

/* ---------- 通用小节头 ---------- */
.page-contact .section-head {
  margin-bottom: clamp(26px, 4vw, 48px);
  max-width: 54ch;
}

.page-contact .section-head .display--sm {
  margin: 10px 0 0;
  font-size: clamp(24px, 3.4vw, 40px);
  line-height: 1.18;
  letter-spacing: -0.01em;
}

.page-contact .section-head .lede {
  margin: 16px 0 0;
  color: var(--mist);
  font-size: var(--step-md);
  line-height: 1.75;
}

/* ---------- 三条渠道 ---------- */
.page-contact .channel-deck {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--ct-gap);
}

@media (min-width: 780px) {
  .page-contact .channel-deck {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

.page-contact .channel-card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 12px;
  min-width: 0;
  padding: 28px 24px 26px;
  background: var(--deep-blue);
  border: var(--edge);
  border-top: 3px solid var(--orbit);
  border-radius: var(--r-md);
  transition: transform var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}

.page-contact .channel-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 18px 40px rgba(4, 12, 24, 0.45);
}

.page-contact .channel-card--cyan {
  border-top-color: var(--cyan);
}

.page-contact .channel-card--amber {
  border-top-color: var(--amber);
}

.page-contact .channel-card--violet {
  border-top-color: var(--violet);
}

.page-contact .channel-card__kicker {
  margin: 0;
  font-size: var(--step-xs);
  letter-spacing: 0.14em;
  color: var(--mist);
}

.page-contact .channel-value {
  margin: 2px 0 0;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: clamp(15px, 1.55vw, 20px);
  line-height: 1.45;
  letter-spacing: -0.01em;
  color: var(--paper);
  overflow-wrap: anywhere;
}

.page-contact .channel-value--mail {
  color: var(--cyan);
}

.page-contact .channel-value--addr {
  font-family: var(--font-sans);
  font-weight: 700;
  font-size: clamp(17px, 1.7vw, 22px);
  line-height: 1.5;
  letter-spacing: 0;
}

.page-contact .channel-card__use {
  margin: 0;
  color: var(--mist);
  font-size: var(--step-md);
  line-height: 1.75;
}

.page-contact .channel-card__time {
  display: flex;
  align-items: center;
  gap: 9px;
  margin: auto 0 0;
  padding-top: 15px;
  border-top: 1px solid var(--orbit);
  font-size: var(--step-xs);
  letter-spacing: 0.08em;
  color: var(--mist);
}

.page-contact .channel-card__time::before {
  content: "";
  flex: 0 0 auto;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--cyan);
}

.page-contact .channel-card--amber .channel-card__time::before {
  background: var(--amber);
}

.page-contact .channel-card--violet .channel-card__time::before {
  background: var(--violet);
}

/* ---------- 回复与提交（纸面） ---------- */
.page-contact .contact-brief {
  color: var(--ink);
}

.page-contact .brief {
  display: grid;
  gap: clamp(28px, 4vw, 56px);
}

@media (min-width: 960px) {
  .page-contact .brief {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    gap: clamp(40px, 6vw, 96px);
    align-items: start;
  }
}

.page-contact .brief__lead .eyebrow {
  color: var(--cyan-ink);
}

.page-contact .brief__lead .display--sm {
  margin: 10px 0 16px;
  font-size: clamp(24px, 3.4vw, 40px);
  line-height: 1.18;
  letter-spacing: -0.01em;
  color: var(--ink);
}

.page-contact .brief__text {
  margin: 0 0 24px;
  font-size: var(--step-lg);
  line-height: 1.75;
  color: var(--ct-body-paper);
}

.page-contact .stage--paper .btn--ghost {
  color: var(--ink);
  border-color: rgba(11, 14, 19, 0.28);
}

.page-contact .stage--paper .btn--ghost:hover {
  border-color: var(--ink);
  background: rgba(11, 14, 19, 0.05);
}

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

.page-contact .brief-item {
  display: grid;
  grid-template-columns: 42px minmax(0, 1fr);
  gap: 16px;
  padding: 20px 0;
  border-top: 1px solid var(--ct-line-dark);
}

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

.page-contact .brief-item__no {
  padding-top: 4px;
  font-size: var(--step-sm);
  letter-spacing: 0.06em;
  color: var(--cyan-ink);
}

.page-contact .brief-item__title {
  margin: 0 0 6px;
  font-size: var(--step-lg);
  font-weight: 700;
  color: var(--ink);
}

.page-contact .brief-item p {
  margin: 0;
  font-size: var(--step-md);
  line-height: 1.75;
  color: var(--ct-body-paper);
}

/* ---------- 诉求分流 ---------- */
.page-contact .contact-routes .filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: clamp(24px, 3.5vw, 40px);
}

.page-contact .contact-routes .filter-chip {
  appearance: none;
  cursor: pointer;
  padding: 9px 18px;
  border-radius: 999px;
  border: 1px solid var(--orbit);
  background: transparent;
  color: var(--mist);
  font-family: inherit;
  font-size: var(--step-sm);
  letter-spacing: 0.06em;
  transition: color 220ms var(--ease), border-color 220ms var(--ease), background 220ms var(--ease);
}

.page-contact .contact-routes .filter-chip:hover {
  border-color: var(--cyan);
  color: var(--paper);
}

.page-contact .contact-routes .filter-chip.is-active {
  background: var(--cyan);
  border-color: var(--cyan);
  color: var(--ink);
  font-weight: 700;
}

.page-contact .contact-routes .filter-chip:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}

.page-contact .route-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
}

@media (min-width: 640px) {
  .page-contact .route-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 1080px) {
  .page-contact .route-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

.page-contact .route-card {
  display: flex;
  flex-direction: column;
  gap: 10px;
  min-width: 0;
  padding: 26px 22px 22px;
  background: linear-gradient(180deg, rgba(30, 69, 96, 0.55) 0%, rgba(16, 41, 74, 0.92) 100%);
  border: 1px solid var(--orbit);
  border-radius: var(--r-md);
}

.page-contact .route-card__no {
  font-size: var(--step-xl);
  line-height: 1;
  letter-spacing: -0.02em;
  color: rgba(169, 189, 214, 0.5);
}

.page-contact .route-card__title {
  margin: 0;
  font-size: var(--step-xl);
  font-weight: 800;
  color: var(--paper);
}

.page-contact .route-card__desc {
  margin: 0;
  font-size: var(--step-md);
  line-height: 1.7;
  color: var(--mist);
}

.page-contact .route-card__label {
  margin: 8px 0 0;
  font-size: var(--step-xs);
  letter-spacing: 0.14em;
  color: var(--amber);
}

.page-contact .need-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 8px;
}

.page-contact .need-list li {
  position: relative;
  padding-left: 16px;
  font-size: var(--step-sm);
  line-height: 1.6;
  color: var(--paper);
}

.page-contact .need-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.6em;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--amber);
}

.page-contact .route-card__link {
  margin-top: auto;
  padding-top: 14px;
  border-top: 1px solid var(--orbit);
  font-size: var(--step-sm);
  color: var(--cyan);
  text-decoration: none;
}

.page-contact .route-card__link:hover {
  text-decoration: underline;
}

.page-contact .route-card__link:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
}

.page-contact .contact-visual {
  margin: clamp(34px, 5vw, 64px) 0 0;
  max-width: 760px;
  aspect-ratio: 4 / 3;
  border-radius: var(--r-lg);
  overflow: hidden;
}

.page-contact .contact-visual img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  max-width: 100%;
}

@media (min-width: 720px) {
  .page-contact .contact-visual {
    aspect-ratio: 11 / 7;
  }
}

/* ---------- 纠错流程与合作共建（纸面） ---------- */
.page-contact .contact-after {
  color: var(--ink);
}

.page-contact .after-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(40px, 5vw, 72px);
}

@media (min-width: 960px) {
  .page-contact .after-grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: clamp(48px, 6vw, 96px);
    align-items: start;
  }
}

.page-contact .after-col .eyebrow {
  color: var(--cyan-ink);
}

.page-contact .after-col .display--sm {
  margin: 10px 0 0;
  font-size: clamp(24px, 3vw, 36px);
  line-height: 1.2;
  letter-spacing: -0.01em;
  color: var(--ink);
}

.page-contact .flow {
  list-style: none;
  margin: clamp(22px, 3vw, 34px) 0 0;
  padding: 0;
}

.page-contact .flow__item {
  display: grid;
  grid-template-columns: 44px minmax(0, 1fr);
  gap: 14px;
  padding: 18px 0;
  border-top: 1px solid var(--ct-line-dark);
}

.page-contact .flow__item:last-child {
  border-bottom: 1px solid var(--ct-line-dark);
}

.page-contact .flow__no {
  padding-top: 4px;
  font-size: var(--step-sm);
  letter-spacing: 0.06em;
  color: var(--cyan-ink);
}

.page-contact .flow__body strong {
  display: block;
  margin-bottom: 5px;
  font-size: var(--step-lg);
  color: var(--ink);
}

.page-contact .flow__body p {
  margin: 0;
  font-size: var(--step-sm);
  line-height: 1.75;
  color: var(--ct-body-paper);
}

.page-contact .coop-list {
  list-style: none;
  margin: clamp(22px, 3vw, 34px) 0 0;
  padding: 0;
}

.page-contact .coop-item {
  padding: 18px 0;
  border-top: 1px solid var(--ct-line-dark);
}

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

.page-contact .coop-item h3 {
  margin: 0 0 6px;
  font-size: var(--step-lg);
  font-weight: 700;
  color: var(--ink);
}

.page-contact .coop-item p {
  margin: 0;
  font-size: var(--step-sm);
  line-height: 1.75;
  color: var(--ct-body-paper);
}

.page-contact .coop-note {
  margin: clamp(20px, 3vw, 30px) 0 22px;
  font-size: var(--step-md);
  line-height: 1.8;
  color: var(--ct-body-paper);
}

/* ---------- 自助入口 ---------- */
.page-contact .quick-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
}

@media (min-width: 760px) {
  .page-contact .quick-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

.page-contact .quick-card {
  display: flex;
  flex-direction: column;
  gap: 12px;
  min-width: 0;
  padding: clamp(24px, 3vw, 36px);
  border: 1px solid var(--orbit);
  border-radius: var(--r-md);
  background: rgba(16, 41, 74, 0.6);
  text-decoration: none;
  color: inherit;
  transition: border-color 260ms var(--ease), background 260ms var(--ease), transform 260ms var(--ease);
}

.page-contact .quick-card:hover {
  border-color: var(--cyan);
  background: rgba(16, 41, 74, 0.95);
  transform: translateY(-2px);
}

.page-contact .quick-card:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
}

.page-contact .quick-card__kicker {
  font-family: var(--font-mono);
  font-size: var(--step-xs);
  letter-spacing: 0.14em;
  color: var(--cyan);
}

.page-contact .quick-card__title {
  font-size: clamp(18px, 2.2vw, 24px);
  font-weight: 700;
  line-height: 1.45;
  color: var(--paper);
}

.page-contact .quick-card__go {
  margin-top: auto;
  padding-top: 10px;
  font-size: var(--step-sm);
  color: var(--mist);
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .channel-card,
  .page-contact .quick-card {
    transition: none;
  }
  .page-contact .channel-card:hover,
  .page-contact .quick-card:hover {
    transform: none;
  }
}