.page-contact {
  position: relative;
  overflow-x: clip;
  color: var(--chalk);
}

.page-contact .contact-inner {
  width: 100%;
  max-width: var(--shell);
  margin-inline: auto;
  padding-inline: clamp(18px, 4.5vw, 44px);
}

.page-contact .eyebrow {
  margin: 0;
  font-size: 12px;
  letter-spacing: 0.16em;
}

.page-contact .contact-num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-weight: 500;
}

/* ---------- 面包屑 ---------- */

.page-contact .contact-crumbs {
  border-bottom: 1px solid rgba(28, 42, 82, 0.7);
}

.page-contact .contact-crumbs__inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  padding-top: clamp(20px, 3vw, 30px);
  padding-bottom: 14px;
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--chalk-muted);
}

.page-contact .contact-crumbs__link {
  color: var(--chalk-muted);
  text-decoration: none;
  transition: color 0.18s var(--ease-out);
}

.page-contact .contact-crumbs__link:hover,
.page-contact .contact-crumbs__link:focus-visible {
  color: var(--flare);
}

.page-contact .contact-crumbs__sep {
  color: var(--ink-500);
}

.page-contact .contact-crumbs__current {
  color: var(--chalk);
}

/* ---------- 首屏 ---------- */

.page-contact .contact-hero {
  position: relative;
  padding: clamp(34px, 5.5vw, 68px) 0 clamp(34px, 4.5vw, 56px);
}

.page-contact .contact-hero::before {
  content: "";
  position: absolute;
  z-index: 0;
  top: -24%;
  right: -12%;
  width: min(720px, 78vw);
  height: min(720px, 78vw);
  background: radial-gradient(circle at center, rgba(255, 107, 30, 0.2), rgba(255, 107, 30, 0) 68%);
  pointer-events: none;
}

.page-contact .contact-hero > .contact-inner {
  position: relative;
  z-index: 1;
}

.page-contact .contact-hero__layout {
  display: grid;
  gap: clamp(18px, 2.6vw, 28px);
}

.page-contact .contact-hero__title {
  margin: clamp(14px, 2vw, 22px) 0 0;
  font-size: clamp(32px, 6.4vw, 82px);
  font-weight: 300;
  line-height: 1.06;
  letter-spacing: -0.03em;
  color: var(--chalk);
}

.page-contact .contact-hero__lede {
  margin: 0;
  font-size: clamp(15px, 1.4vw, 17px);
  line-height: 1.85;
  color: var(--chalk-muted);
  max-width: 62ch;
}

@media (min-width: 960px) {
  .page-contact .contact-hero__layout {
    grid-template-columns: minmax(0, 1.2fr) minmax(0, 0.8fr);
    gap: clamp(32px, 5vw, 72px);
    align-items: end;
  }
  .page-contact .contact-hero__layout .contact-hero__head {
    order: 1;
  }
}

.page-contact .contact-hero__media {
  position: relative;
  margin: clamp(30px, 4vw, 52px) 0 0;
  border-radius: var(--r-lg);
  overflow: hidden;
  border: 1px solid var(--ink-500);
  background: var(--ink-700);
}

.page-contact .contact-hero__media img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
}

.page-contact .contact-hero__media::after {
  content: "";
  position: absolute;
  inset: auto 0 0 0;
  height: 56%;
  background: linear-gradient(180deg, rgba(6, 10, 26, 0), rgba(6, 10, 26, 0.72));
  pointer-events: none;
}

/* ---------- 通道卡 ---------- */

.page-contact .contact-channels {
  padding: clamp(24px, 3.6vw, 44px) 0 clamp(40px, 6vw, 76px);
}

.page-contact .contact-channels__head {
  max-width: 64ch;
  margin-bottom: clamp(24px, 3.4vw, 40px);
}

.page-contact .contact-channels__title {
  margin: 12px 0 0;
  font-size: clamp(24px, 3.4vw, 40px);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.01em;
  color: var(--chalk);
}

.page-contact .contact-channels__sub {
  margin: 12px 0 0;
  font-size: 16px;
  line-height: 1.75;
  color: var(--chalk-muted);
  max-width: 62ch;
}

.page-contact .contact-channels__row {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(14px, 2vw, 22px);
}

@media (min-width: 880px) {
  .page-contact .contact-channels__row {
    grid-template-columns: 1.32fr 1fr 0.86fr;
  }
}

.page-contact .channel-card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 14px;
  padding: clamp(22px, 2.6vw, 32px);
  border-radius: var(--r-md);
  border: 1px solid var(--ink-500);
  background:
    radial-gradient(120% 90% at 100% 0%, rgba(255, 107, 30, 0.09), rgba(255, 107, 30, 0) 62%),
    linear-gradient(165deg, var(--ink-700), var(--ink-900));
  transition:
    transform 0.24s var(--ease-out),
    border-color 0.24s var(--ease-out),
    box-shadow 0.24s var(--ease-out);
}

.page-contact .channel-card::before {
  content: "";
  position: absolute;
  left: 0;
  top: 30px;
  bottom: 30px;
  width: 3px;
  border-radius: 0 var(--r-pill) var(--r-pill) 0;
  background: var(--flare);
  opacity: 0.4;
  transition:
    opacity 0.24s var(--ease-out),
    top 0.24s var(--ease-out),
    bottom 0.24s var(--ease-out);
}

.page-contact .channel-card:hover,
.page-contact .channel-card:focus-within {
  transform: translateY(-6px);
  border-color: rgba(255, 107, 30, 0.55);
  box-shadow: 0 26px 48px -30px rgba(255, 107, 30, 0.9);
}

.page-contact .channel-card:hover::before,
.page-contact .channel-card:focus-within::before {
  opacity: 1;
  top: 18px;
  bottom: 18px;
}

.page-contact .channel-card__index {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--flare);
}

.page-contact .channel-card__title {
  margin: 0;
  font-size: clamp(20px, 2vw, 24px);
  font-weight: 700;
  line-height: 1.25;
  color: var(--chalk);
}

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

.page-contact .channel-card__foot {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 8px 16px;
  margin: auto 0 0;
  padding-top: 16px;
  border-top: 1px solid var(--ink-500);
  font-size: 13px;
}

.page-contact .channel-card__tag {
  color: var(--chalk);
  font-weight: 600;
}

.page-contact .channel-card__eta {
  margin-left: auto;
  color: var(--chalk-muted);
}

/* ---------- 邮箱与电话 ---------- */

.page-contact .contact-direct {
  padding: 0 0 clamp(44px, 6vw, 80px);
}

.page-contact .contact-direct__head {
  margin-bottom: clamp(22px, 3vw, 34px);
}

.page-contact .contact-direct__title {
  margin: 12px 0 0;
  font-size: clamp(24px, 3.4vw, 40px);
  font-weight: 800;
  line-height: 1.15;
  color: var(--chalk);
}

.page-contact .contact-direct__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(14px, 2vw, 22px);
}

@media (min-width: 880px) {
  .page-contact .contact-direct__grid {
    grid-template-columns: 1.28fr 0.72fr;
  }
}

.page-contact .direct-card {
  position: relative;
  overflow: hidden;
  padding: clamp(24px, 3vw, 36px);
  border-radius: 0;
  border: 1px solid var(--ink-500);
  background: linear-gradient(180deg, var(--ink-700), var(--ink-900));
}

.page-contact .direct-card::after {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 3px;
  background: var(--flare);
}

.page-contact .direct-card--phone::after {
  background: var(--mint);
}

.page-contact .direct-card__kicker {
  margin: 0;
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--chalk-muted);
}

.page-contact .direct-card__value {
  margin: 14px 0 0;
  font-family: var(--font-mono);
  font-size: clamp(18px, 2.6vw, 30px);
  font-weight: 500;
  letter-spacing: -0.01em;
  line-height: 1.3;
  color: var(--chalk);
  overflow-wrap: anywhere;
  word-break: break-word;
}

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

.page-contact .direct-card__note {
  margin: 14px 0 0;
  font-size: 14px;
  line-height: 1.78;
  color: var(--chalk-muted);
  max-width: 58ch;
}

/* ---------- 材料清单 ---------- */

.page-contact .contact-prep {
  padding: 0 0 clamp(44px, 6vw, 80px);
}

.page-contact .contact-prep__title {
  margin: 12px 0 0;
  font-size: clamp(22px, 3vw, 34px);
  font-weight: 800;
  line-height: 1.2;
  color: var(--chalk);
}

.page-contact .contact-prep__tabs {
  margin-top: clamp(22px, 3vw, 34px);
  padding: clamp(18px, 2.6vw, 30px);
  border-radius: var(--r-md);
  border: 1px solid var(--ink-500);
  background: rgba(16, 26, 56, 0.62);
}

.page-contact .contact-prep__tabs .tablist {
  position: relative;
  display: flex;
  gap: 6px;
  padding: 6px;
  border-radius: var(--r-pill);
  border: 1px solid var(--ink-500);
  background: var(--ink-900);
  overflow-x: auto;
  scrollbar-width: none;
  -webkit-overflow-scrolling: touch;
}

.page-contact .contact-prep__tabs .tablist::-webkit-scrollbar {
  display: none;
}

.page-contact .contact-prep__tabs .tablist__indicator {
  position: absolute;
  z-index: 0;
  top: 6px;
  bottom: 6px;
  left: 6px;
  width: 96px;
  border-radius: var(--r-pill);
  background: var(--flare);
  transition:
    transform 0.32s var(--ease-spring),
    width 0.32s var(--ease-spring);
}

.page-contact .contact-prep__tabs .tab {
  position: relative;
  z-index: 1;
  flex: 1 0 auto;
  padding: 10px 20px;
  border: 0;
  border-radius: var(--r-pill);
  background: transparent;
  color: var(--chalk-muted);
  font-family: inherit;
  font-size: 14px;
  font-weight: 500;
  white-space: nowrap;
  cursor: pointer;
  transition: color 0.2s var(--ease-out);
}

.page-contact .contact-prep__tabs .tab[aria-selected="true"] {
  color: var(--ink-900);
  font-weight: 700;
}

.page-contact .contact-prep__tabs .tab:focus-visible {
  outline: 2px solid var(--flare);
  outline-offset: 3px;
}

.page-contact .contact-prep__tabs .tabpanel {
  padding: clamp(20px, 2.4vw, 28px) 2px 2px;
}

.page-contact .contact-prep__tabs .tabpanel[hidden] {
  display: none;
}

.page-contact .prep-list {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
  margin: 0;
  padding: 0;
  list-style: none;
}

@media (min-width: 760px) {
  .page-contact .prep-list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

.page-contact .prep-list__item {
  display: grid;
  gap: 8px;
  align-content: start;
  padding: 16px 18px;
  border-radius: var(--r-sm);
  border: 1px solid var(--ink-500);
  background: var(--ink-900);
}

.page-contact .prep-list__key {
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--mint);
}

.page-contact .prep-list__val {
  font-size: 14px;
  line-height: 1.72;
  color: var(--chalk-muted);
}

.page-contact .prep-list__more {
  margin: 18px 0 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--chalk-muted);
}

.page-contact .prep-list__more a {
  color: var(--mint);
  text-decoration: none;
  border-bottom: 1px solid rgba(62, 232, 176, 0.42);
}

.page-contact .prep-list__more a:hover,
.page-contact .prep-list__more a:focus-visible {
  border-bottom-color: var(--mint);
}

/* ---------- 办公与邮寄 ---------- */

.page-contact .contact-address {
  position: relative;
  padding: clamp(40px, 6vw, 80px) 0;
}

.page-contact .contact-address::before {
  content: "";
  position: absolute;
  z-index: 0;
  left: -16%;
  top: 4%;
  width: min(600px, 72vw);
  height: min(600px, 72vw);
  background: radial-gradient(circle at center, rgba(62, 232, 176, 0.14), rgba(62, 232, 176, 0) 70%);
  pointer-events: none;
}

.page-contact .contact-address__layout {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(24px, 3.4vw, 46px);
  align-items: center;
}

@media (min-width: 900px) {
  .page-contact .contact-address__layout {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.02fr);
    gap: clamp(36px, 5vw, 72px);
  }
}

.page-contact .contact-address__title {
  margin: 12px 0 0;
  font-size: clamp(22px, 3vw, 34px);
  font-weight: 800;
  line-height: 1.2;
  color: var(--chalk);
}

.page-contact .contact-address__line {
  margin: 20px 0 0;
  padding-left: 16px;
  border-left: 3px solid var(--mint);
  font-family: var(--font-mono);
  font-size: clamp(16px, 2vw, 21px);
  font-weight: 500;
  line-height: 1.5;
  color: var(--chalk);
}

.page-contact .contact-address__text {
  margin: 18px 0 0;
  font-size: 15px;
  line-height: 1.82;
  color: var(--chalk-muted);
  max-width: 60ch;
}

.page-contact .contact-address__media {
  margin: 0;
  border-radius: var(--r-md);
  overflow: hidden;
  border: 1px solid var(--ink-500);
  background: var(--ink-700);
}

.page-contact .contact-address__media img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 7 / 4;
  object-fit: cover;
}

.page-contact .contact-address__caption {
  padding: 12px 18px;
  font-size: 12px;
  letter-spacing: 0.06em;
  line-height: 1.6;
  color: var(--chalk-muted);
  background: var(--ink-700);
  border-top: 1px solid var(--ink-500);
}

/* ---------- 内容合作 ---------- */

.page-contact .contact-coop {
  padding: 0 0 clamp(44px, 6vw, 80px);
}

.page-contact .contact-coop__head {
  max-width: 66ch;
}

.page-contact .contact-coop__title {
  margin: 12px 0 0;
  font-size: clamp(22px, 3vw, 34px);
  font-weight: 800;
  line-height: 1.2;
  color: var(--chalk);
}

.page-contact .contact-coop__lede {
  margin: 14px 0 0;
  font-size: 15px;
  line-height: 1.82;
  color: var(--chalk-muted);
  max-width: 62ch;
}

.page-contact .coop-list {
  margin: clamp(24px, 3vw, 36px) 0 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--ink-500);
}

.page-contact .coop-list__item {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: clamp(16px, 2.4vw, 32px);
  align-items: start;
  padding: clamp(20px, 2.6vw, 30px) 0;
  border-bottom: 1px solid var(--ink-500);
}

.page-contact .coop-list__index {
  padding-top: 4px;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 13px;
  letter-spacing: 0.12em;
  color: var(--flare);
}

.page-contact .coop-list__title {
  margin: 0;
  font-size: clamp(17px, 1.8vw, 20px);
  font-weight: 700;
  line-height: 1.3;
  color: var(--chalk);
}

.page-contact .coop-list__text {
  margin: 10px 0 0;
  font-size: 15px;
  line-height: 1.78;
  color: var(--chalk-muted);
  max-width: 68ch;
}

.page-contact .contact-coop__more {
  margin: 22px 0 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--chalk-muted);
}

.page-contact .contact-coop__more a {
  color: var(--flare-soft);
  text-decoration: none;
  border-bottom: 1px solid rgba(255, 154, 90, 0.42);
}

.page-contact .contact-coop__more a:hover,
.page-contact .contact-coop__more a:focus-visible {
  border-bottom-color: var(--flare);
}

/* ---------- 回复节奏 ---------- */

.page-contact .contact-sla {
  padding: 0 0 clamp(48px, 6.5vw, 86px);
}

.page-contact .contact-sla__title {
  margin: 12px 0 0;
  font-size: clamp(22px, 3vw, 34px);
  font-weight: 800;
  line-height: 1.2;
  color: var(--chalk);
}

.page-contact .sla-track {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(16px, 2vw, 22px);
  margin: clamp(24px, 3vw, 36px) 0 0;
  padding: 0;
  list-style: none;
}

.page-contact .sla-step {
  position: relative;
  padding-top: 24px;
}

.page-contact .sla-step::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: var(--ink-500);
}

.page-contact .sla-step::after {
  content: "";
  position: absolute;
  top: -3px;
  left: 0;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--flare);
  box-shadow: 0 0 0 4px rgba(255, 107, 30, 0.16);
}

.page-contact .sla-step__num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--amber);
}

.page-contact .sla-step__title {
  margin: 10px 0 0;
  font-size: 16px;
  font-weight: 700;
  line-height: 1.35;
  color: var(--chalk);
}

.page-contact .sla-step__text {
  margin: 10px 0 0;
  font-size: 14px;
  line-height: 1.78;
  color: var(--chalk-muted);
}

@media (min-width: 760px) {
  .page-contact .sla-track {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: clamp(18px, 2.4vw, 26px) clamp(20px, 3vw, 36px);
  }
}

@media (min-width: 1080px) {
  .page-contact .sla-track {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 0;
  }
  .page-contact .sla-step {
    padding-right: clamp(18px, 2.2vw, 30px);
  }
}

/* ---------- 常见问题 ---------- */

.page-contact .contact-faq {
  padding: 0 0 clamp(40px, 6vw, 72px);
}

.page-contact .contact-faq__title {
  margin: 12px 0 0;
  font-size: clamp(22px, 3vw, 34px);
  font-weight: 800;
  line-height: 1.2;
  color: var(--chalk);
}

.page-contact .contact-faq__list {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(14px, 2vw, 20px);
  margin: clamp(22px, 3vw, 34px) 0 0;
  padding: 0;
  list-style: none;
}

@media (min-width: 880px) {
  .page-contact .contact-faq__list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

.page-contact .contact-faq__item {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: clamp(20px, 2.4vw, 28px);
  border-radius: var(--r-md);
  border: 1px solid var(--ink-500);
  background: linear-gradient(180deg, rgba(16, 26, 56, 0.9), rgba(6, 10, 26, 0.9));
}

.page-contact .contact-faq__item-title {
  margin: 0;
  font-size: 16px;
  font-weight: 700;
  line-height: 1.4;
  color: var(--chalk);
}

.page-contact .contact-faq__item-text {
  margin: 0;
  font-size: 14px;
  line-height: 1.78;
  color: var(--chalk-muted);
}

.page-contact .contact-faq__link {
  margin-top: auto;
  padding-top: 12px;
  align-self: flex-start;
  font-size: 14px;
  font-weight: 600;
  color: var(--mint);
  text-decoration: none;
  border-bottom: 1px solid rgba(62, 232, 176, 0.4);
  transition: border-color 0.2s var(--ease-out), color 0.2s var(--ease-out);
}

.page-contact .contact-faq__link:hover,
.page-contact .contact-faq__link:focus-visible {
  color: var(--chalk);
  border-bottom-color: var(--mint);
}

/* ---------- 页尾署名 ---------- */

.page-contact .contact-colophon {
  border-top: 1px solid var(--ink-500);
}

.page-contact .contact-colophon__row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 14px;
  margin: 0;
  padding: clamp(20px, 3vw, 28px) 0 clamp(30px, 4vw, 44px);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--chalk-muted);
}

.page-contact .contact-colophon__brand {
  color: var(--chalk);
  font-weight: 700;
  letter-spacing: 0.06em;
}

.page-contact .contact-colophon__dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--mint);
}

.page-contact .contact-colophon__icp {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .channel-card,
  .page-contact .channel-card::before,
  .page-contact .contact-prep__tabs .tablist__indicator {
    transition: none;
  }
  .page-contact .channel-card:hover,
  .page-contact .channel-card:focus-within {
    transform: none;
  }
}