.page-contact {
  --ct-line: rgba(203, 216, 230, 0.14);
  --ct-line-soft: rgba(203, 216, 230, 0.08);
  --ct-ink: var(--ice);
  --ct-ink-mid: var(--ice-mid);
  background: var(--abyss);
  color: var(--ct-ink);
  font-family: var(--font-sans);
}

.page-contact a {
  color: inherit;
}

/* ---------- 首屏 ---------- */
.page-contact .hero {
  position: relative;
  overflow: hidden;
  padding: clamp(96px, 14vh, 168px) 0 clamp(52px, 8vh, 96px);
}

.page-contact .hero::after {
  content: "";
  position: absolute;
  top: -16%;
  right: -20%;
  width: 56%;
  height: 130%;
  background: linear-gradient(200deg, rgba(43, 245, 160, 0.10), rgba(5, 10, 24, 0) 62%);
  transform: skewX(-14deg);
  pointer-events: none;
}

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

.page-contact .hero__crumb {
  margin-bottom: clamp(24px, 4vh, 44px);
}

.page-contact .hero__inner {
  display: grid;
  gap: clamp(28px, 5vw, 60px);
  align-items: center;
}

.page-contact .hero__media {
  margin: 0;
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--glass-line);
  aspect-ratio: 14 / 9;
  background: var(--night);
}

.page-contact .hero__media::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--neon), rgba(43, 245, 160, 0) 72%);
}

.page-contact .hero__media img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(0.42) contrast(1.06) brightness(0.78);
}

.page-contact .hero__title {
  margin: 10px 0 20px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(34px, 6.2vw, 72px);
  line-height: 1.02;
  letter-spacing: -0.02em;
  color: var(--sheen);
}

.page-contact .hero__lead {
  max-width: 34em;
  color: var(--ct-ink-mid);
}

.page-contact .hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 30px;
}

/* ---------- 合作类型 ---------- */
.page-contact .coop {
  position: relative;
  padding: clamp(64px, 10vh, 120px) 0 clamp(64px, 9vh, 112px);
  isolation: isolate;
}

.page-contact .coop__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  overflow: hidden;
  pointer-events: none;
}

.page-contact .coop__bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.13;
  filter: saturate(0.25) contrast(1.05);
}

.page-contact .coop__inner {
  position: relative;
  z-index: 1;
}

.page-contact .coop__lead {
  max-width: 46em;
  color: var(--ct-ink-mid);
}

.page-contact .coop__lead a {
  color: var(--neon);
  text-decoration: underline;
  text-underline-offset: 4px;
}

.page-contact .coop__grid {
  display: grid;
  gap: clamp(28px, 4vw, 44px);
  margin-top: clamp(32px, 5vw, 56px);
}

.page-contact .coop__list {
  display: grid;
  gap: 16px;
}

.page-contact .coop-card {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 16px;
  padding: 22px 22px 20px;
  border-radius: var(--radius);
  border: 1px solid var(--glass-line);
  border-left: 3px solid var(--ice-dim);
  background: linear-gradient(158deg, var(--crevasse) 0%, rgba(18, 34, 74, 0.52) 100%);
  transition: border-left-color 240ms var(--ease), border-color 240ms var(--ease), transform 240ms var(--ease);
}

.page-contact .coop-card:hover {
  border-left-color: var(--neon);
  border-color: var(--glass-hi);
  transform: translateX(3px);
}

.page-contact .coop-card--editorial {
  border-left-color: rgba(43, 245, 160, 0.45);
}

.page-contact .coop-card--stands {
  border-left-color: rgba(255, 91, 58, 0.55);
}

.page-contact .coop-card__icon {
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  border-radius: 11px;
  color: var(--neon);
  background: rgba(43, 245, 160, 0.09);
  border: 1px solid rgba(43, 245, 160, 0.26);
}

.page-contact .coop-card--stands .coop-card__icon {
  color: var(--flare);
  background: rgba(255, 91, 58, 0.09);
  border-color: rgba(255, 91, 58, 0.30);
}

.page-contact .coop-card__icon svg {
  width: 21px;
  height: 21px;
  display: block;
}

.page-contact .coop-card__title {
  margin: 2px 0 10px;
  font-family: var(--font-serif);
  font-size: 19px;
  font-weight: 700;
  letter-spacing: 0.01em;
  color: var(--sheen);
}

.page-contact .coop-card__for {
  margin: 0 0 12px;
  font-size: 15px;
  line-height: 1.75;
  color: var(--ct-ink);
}

.page-contact .coop-card__who,
.page-contact .coop-card__scope {
  margin: 0 0 6px;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--ct-ink-mid);
}

.page-contact .coop-card__scope {
  margin-bottom: 0;
}

.page-contact .coop-card__k {
  display: inline-block;
  margin-right: 8px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.06em;
  color: var(--ice-dim);
}

/* 提交清单 */
.page-contact .coop-prep {
  align-self: start;
  padding: 26px 24px 24px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--glass-line);
  background: rgba(255, 255, 255, 0.055);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
}

.page-contact .coop-prep__title {
  margin: 6px 0 10px;
  font-family: var(--font-serif);
  font-size: clamp(20px, 2.4vw, 26px);
  font-weight: 700;
  color: var(--sheen);
}

.page-contact .coop-prep__lead {
  margin: 0 0 22px;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--ct-ink-mid);
}

.page-contact .prep-list {
  list-style: none;
  counter-reset: prep;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0;
}

.page-contact .prep-list li {
  counter-increment: prep;
  display: grid;
  grid-template-columns: 30px minmax(0, 1fr);
  gap: 10px;
  align-items: start;
  padding: 13px 0;
  border-top: 1px solid var(--ct-line-soft);
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--ct-ink);
}

.page-contact .prep-list li:first-child {
  border-top: 0;
  padding-top: 0;
}

.page-contact .prep-list li::before {
  content: counter(prep, decimal-leading-zero);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--neon);
  padding-top: 3px;
}

.page-contact .coop-prep__note {
  margin: 20px 0 0;
  padding-top: 16px;
  border-top: 1px solid var(--ct-line-soft);
  font-size: 13px;
  line-height: 1.7;
  color: var(--ice-dim);
}

/* ---------- 联系通道 ---------- */
.page-contact .channels {
  position: relative;
  overflow: hidden;
  background: var(--night);
  padding: clamp(72px, 10vh, 124px) 0 clamp(72px, 10vh, 120px);
}

.page-contact .channels::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 44px;
  background: var(--abyss);
  clip-path: polygon(0 0, 100% 0, 100% 20%, 0 100%);
  pointer-events: none;
}

.page-contact .channels .container {
  position: relative;
  z-index: 1;
}

.page-contact .channels__lead {
  max-width: 42em;
  color: var(--ct-ink-mid);
}

.page-contact .channels__grid {
  display: grid;
  gap: 16px;
  margin-top: clamp(30px, 4vw, 50px);
}

.page-contact .channel {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 24px 22px 22px;
  border-radius: var(--radius);
  border: 1px solid var(--glass-line);
  background: var(--crevasse);
}

.page-contact .channel--mail {
  border-color: rgba(43, 245, 160, 0.34);
  background: linear-gradient(155deg, rgba(43, 245, 160, 0.10), var(--crevasse) 60%);
}

.page-contact .channel__label {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ice-dim);
}

.page-contact .channel__value {
  margin: 0;
  font-family: var(--font-mono);
  font-size: clamp(15px, 2.2vw, 20px);
  font-weight: 500;
  letter-spacing: 0.01em;
  line-height: 1.5;
  color: var(--sheen);
  overflow-wrap: anywhere;
}

.page-contact .channel__value--mail {
  color: var(--neon);
}

.page-contact .channel__value--addr {
  font-family: var(--font-sans);
  font-size: 15.5px;
  font-weight: 500;
  letter-spacing: 0;
  color: var(--ice);
}

.page-contact .channel__note {
  margin: 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--ct-ink-mid);
}

/* ---------- 处理流程 ---------- */
.page-contact .flow {
  padding: clamp(64px, 10vh, 116px) 0 clamp(56px, 8vh, 96px);
}

.page-contact .flow__lead {
  max-width: 40em;
  color: var(--ct-ink-mid);
}

.page-contact .flow__track {
  list-style: none;
  margin: clamp(32px, 5vw, 56px) 0 0;
  padding: 0;
  display: grid;
  gap: 0;
}

.page-contact .flow__step {
  position: relative;
  padding: 0 0 30px 24px;
  border-left: 1px solid var(--ice-dim);
}

.page-contact .flow__step::before {
  content: "";
  position: absolute;
  left: -1px;
  top: 4px;
  width: 2px;
  height: 28px;
  background: var(--neon);
}

.page-contact .flow__step:last-child {
  padding-bottom: 4px;
}

.page-contact .flow__num {
  display: block;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.12em;
  color: var(--ice-dim);
  margin-bottom: 10px;
}

.page-contact .flow__when {
  display: inline-block;
  padding: 3px 11px;
  border-radius: 999px;
  border: 1px solid var(--ice-dim);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.05em;
  color: var(--neon);
}

.page-contact .flow__title {
  margin: 14px 0 10px;
  font-family: var(--font-serif);
  font-size: 19px;
  font-weight: 700;
  color: var(--sheen);
}

.page-contact .flow__desc {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--ct-ink-mid);
}

/* ---------- 账号与订阅 ---------- */
.page-contact .account {
  padding: clamp(56px, 8vh, 96px) 0 clamp(64px, 10vh, 116px);
}

.page-contact .account__grid {
  display: grid;
  gap: clamp(28px, 4vw, 52px);
}

.page-contact .account__prose {
  max-width: 34em;
  color: var(--ct-ink-mid);
}

.page-contact .account__links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

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

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

.page-contact .account__item:first-child {
  border-top: 0;
  padding-top: 0;
}

.page-contact .account__item-title {
  margin: 0 0 8px;
  font-size: 16px;
  font-weight: 600;
  color: var(--sheen);
}

.page-contact .account__item-desc {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--ct-ink-mid);
}

/* ---------- 常见问题 ---------- */
.page-contact .faq {
  padding: 0 0 clamp(72px, 11vh, 132px);
}

.page-contact .faq__list {
  margin-top: clamp(28px, 4vw, 44px);
  border-top: 1px solid var(--ct-line);
}

.page-contact .faq__item {
  border-bottom: 1px solid var(--ct-line);
}

.page-contact .faq__q {
  font-family: var(--font-sans);
  font-size: 15.5px;
  font-weight: 500;
  color: var(--ice);
}

.page-contact .faq .disclosure__inner p {
  margin: 0;
  max-width: 44em;
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--ct-ink-mid);
}

.page-contact .faq .disclosure__inner a {
  color: var(--neon);
  text-decoration: underline;
  text-underline-offset: 4px;
}

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

  .page-contact .channel--mail {
    grid-column: 1 / -1;
  }
}

@media (min-width: 900px) {
  .page-contact .hero__inner {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
  }

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

  .page-contact .channels__grid {
    grid-template-columns: minmax(0, 6fr) minmax(0, 3fr) minmax(0, 3fr);
  }

  .page-contact .channel--mail {
    grid-column: auto;
  }

  .page-contact .flow__track {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-contact .flow__step {
    padding: 34px 30px 0 0;
    border-left: 0;
    border-top: 1px solid var(--ice-dim);
  }

  .page-contact .flow__step::before {
    left: 0;
    top: -1px;
    width: 46px;
    height: 2px;
  }

  .page-contact .flow__step:last-child {
    padding-bottom: 0;
    padding-right: 0;
  }

  .page-contact .account__grid {
    grid-template-columns: minmax(0, 4fr) minmax(0, 8fr);
    align-items: start;
  }
}

@media (min-width: 1180px) {
  .page-contact .coop-card {
    padding: 26px 28px 24px;
  }

  .page-contact .coop-prep {
    padding: 32px 30px 28px;
  }
}

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