/* ===== 咨询与合作 · page-contact ===== */

.page-contact .contact-hero {
  position: relative;
  padding: calc(var(--header-h) + 44px) 0 clamp(38px, 6vw, 72px);
  background:
    radial-gradient(980px 460px at 84% -10%, rgba(47, 224, 176, .10), transparent 64%),
    radial-gradient(720px 420px at 2% 6%, rgba(255, 106, 43, .13), transparent 60%),
    linear-gradient(158deg, #0A1A2F 0%, #0F2540 48%, #0A1A2F 100%);
  border-bottom: 1px solid var(--line);
  overflow: hidden;
}

.page-contact .crums,
.page-contact .crumbs {
  position: relative;
  z-index: 1;
}

.page-contact .crumbs__item {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--rock);
  text-decoration: none;
  transition: color var(--dur) var(--ease);
}

.page-contact .crumbs a.crumbs__item:hover {
  color: var(--signal);
}

.page-contact .crumbs__item--now {
  color: var(--paper);
}

.page-contact .contact-hero__grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr;
  gap: 34px;
  margin-top: 26px;
}

.page-contact .contact-hero__title {
  margin: 12px 0 0;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: clamp(32px, 6.4vw, 66px);
  line-height: 1.08;
  letter-spacing: -.02em;
  color: var(--paper);
}

.page-contact .contact-hero .lede {
  margin: 18px 0 0;
  max-width: 56ch;
  color: var(--ink-soft);
  font-size: 16px;
  line-height: 1.8;
}

.page-contact .contact-rail {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--line);
}

.page-contact .contact-rail__row {
  display: grid;
  grid-template-columns: 64px minmax(0, 1fr);
  gap: 6px 16px;
  align-items: baseline;
  padding: 13px 0;
  border-bottom: 1px solid var(--line);
}

.page-contact .contact-rail__k {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .18em;
  color: var(--rock-deep);
}

.page-contact .contact-rail__v {
  font-family: var(--font-mono);
  font-size: clamp(14px, 1.6vw, 17px);
  color: var(--paper);
  overflow-wrap: anywhere;
}

.page-contact .contact-rail__v a {
  color: inherit;
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-contact .contact-rail__v a:hover {
  color: var(--signal);
  border-bottom-color: var(--signal);
}

/* ---------- 渠道 + 响应面板 ---------- */

.page-contact .channel-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--gap);
  margin-top: 30px;
}

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

.page-contact .channel-card {
  position: relative;
  padding: 24px 22px 26px;
  background: var(--glass-bg);
  border: 1px solid var(--line);
  transition: border-color var(--dur) var(--ease), background var(--dur) var(--ease);
}

.page-contact .channel-card::before {
  content: "";
  position: absolute;
  top: -1px;
  left: -1px;
  width: 30px;
  height: 2px;
  background: var(--signal);
  transition: width var(--dur) var(--ease);
}

.page-contact .channel-card:hover {
  border-color: var(--line-strong);
  background: rgba(27, 62, 99, .60);
}

.page-contact .channel-card:hover::before {
  width: 76px;
}

.page-contact .channel-card__k {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .18em;
  color: var(--rock-deep);
}

.page-contact .channel-card__title {
  margin: 10px 0 0;
  font-family: var(--font-head);
  font-size: 20px;
  font-weight: 700;
  letter-spacing: .01em;
  color: var(--paper);
}

.page-contact .channel-card__value {
  display: inline-block;
  margin-top: 12px;
  font-family: var(--font-mono);
  font-size: clamp(15px, 2.2vw, 21px);
  color: var(--gold);
  text-decoration: none;
  overflow-wrap: anywhere;
  border-bottom: 1px solid rgba(232, 181, 74, .34);
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-contact .channel-card__value:hover {
  color: var(--signal);
  border-bottom-color: var(--signal);
}

.page-contact .channel-card__value--plain {
  display: block;
  color: var(--paper);
  border-bottom: none;
  font-size: clamp(15px, 2vw, 19px);
  line-height: 1.6;
}

.page-contact .channel-card__desc {
  margin: 14px 0 0;
  color: var(--ink-dim);
  font-size: 15px;
  line-height: 1.78;
}

.page-contact .channel-card__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  list-style: none;
  margin: 18px 0 0;
  padding: 0;
}

.page-contact .channel-card--map {
  position: relative;
  overflow: hidden;
  padding: 0;
  min-height: 250px;
  display: flex;
  align-items: flex-end;
}

.page-contact .channel-card__bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(.5) contrast(1.06) brightness(.72) hue-rotate(8deg);
}

.page-contact .channel-card--map::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(10, 26, 47, .45) 0%, rgba(10, 26, 47, .92) 82%);
}

.page-contact .channel-card__body {
  position: relative;
  z-index: 1;
  padding: 24px 22px 26px;
}

.page-contact .response-panel {
  padding: 26px 22px;
  border: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(27, 62, 99, .58), rgba(10, 26, 47, .38));
}

.page-contact .response-panel__k {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .2em;
  color: var(--mint);
}

.page-contact .response-panel__title {
  margin: 10px 0 0;
  font-family: var(--font-head);
  font-size: 21px;
  font-weight: 700;
  color: var(--paper);
}

.page-contact .response-panel__list {
  list-style: none;
  margin: 18px 0 0;
  padding: 0;
  border-top: 1px solid var(--line);
}

.page-contact .response-panel__item {
  display: grid;
  gap: 4px;
  padding: 14px 0;
  border-bottom: 1px solid var(--line);
}

.page-contact .response-panel__label {
  font-family: var(--font-head);
  font-size: 15px;
  font-weight: 700;
  color: var(--paper);
}

.page-contact .response-panel__text {
  font-size: 14px;
  line-height: 1.7;
  color: var(--ink-dim);
}

.page-contact .response-panel__link {
  justify-self: start;
  margin-top: 4px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--signal);
  text-decoration: none;
  border-bottom: 1px solid rgba(255, 106, 43, .35);
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-contact .response-panel__link:hover {
  color: var(--gold);
  border-bottom-color: var(--gold);
}

.page-contact .response-panel__note {
  margin: 18px 0 0;
  font-size: 13px;
  line-height: 1.75;
  color: var(--rock);
}

/* ---------- 商务合作与供稿 ---------- */

.page-contact .coop-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--gap);
  margin-top: 30px;
}

.page-contact .coop-figure {
  margin: 0;
}

.page-contact .coop-figure img {
  display: block;
  width: 100%;
  height: auto;
  border: 1px solid var(--line);
  filter: saturate(.55) contrast(1.05) brightness(.82);
}

.page-contact .coop-figure figcaption {
  margin-top: 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .06em;
  line-height: 1.7;
  color: var(--rock-deep);
}

.page-contact .coop-tracks {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--line);
}

.page-contact .coop-tracks__item {
  padding: 18px 0 18px 18px;
  border-bottom: 1px solid var(--line);
  border-left: 2px solid transparent;
  transition: border-color var(--dur) var(--ease), background var(--dur) var(--ease);
}

.page-contact .coop-tracks__item:hover {
  border-left-color: var(--signal);
  background: rgba(27, 62, 99, .30);
}

.page-contact .coop-tracks__title {
  margin: 0;
  font-family: var(--font-head);
  font-size: 17px;
  font-weight: 700;
  color: var(--paper);
}

.page-contact .coop-tracks__item p {
  margin: 8px 0 0;
  font-size: 15px;
  line-height: 1.78;
  color: var(--ink-dim);
}

.page-contact .coop-copy__foot {
  margin: 18px 0 22px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--rock);
}

/* ---------- 内容纠错 ---------- */

.page-contact .fix-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--gap);
  margin-top: 30px;
}

.page-contact .fix-list {
  list-style: none;
  margin: 0;
  padding: 0;
  counter-reset: fix;
}

.page-contact .fix-list__item {
  display: grid;
  grid-template-columns: 46px minmax(0, 1fr);
  gap: 16px;
  padding: 20px 0;
  border-bottom: 1px solid var(--line);
}

.page-contact .fix-list__item:first-child {
  border-top: 1px solid var(--line);
}

.page-contact .fix-list__num {
  font-size: 20px;
  color: var(--clay);
  line-height: 1.2;
}

.page-contact .fix-list__title {
  margin: 0;
  font-family: var(--font-head);
  font-size: 16px;
  font-weight: 700;
  color: var(--paper);
}

.page-contact .fix-list__body p {
  margin: 6px 0 0;
  font-size: 15px;
  line-height: 1.78;
  color: var(--ink-dim);
}

.page-contact .fix-aside {
  padding: 24px 22px;
  border: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(27, 62, 99, .52), rgba(10, 26, 47, .34));
}

.page-contact .fix-aside__k {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .2em;
  color: var(--mint);
}

.page-contact .fix-aside__lead {
  margin: 12px 0 0;
  font-size: 15px;
  line-height: 1.78;
  color: var(--ink-soft);
}

.page-contact .fix-aside__stats {
  margin: 20px 0 0;
  display: grid;
  gap: 12px;
}

.page-contact .fix-stat {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 6px 14px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--line);
}

.page-contact .fix-stat__label {
  font-size: 13px;
  color: var(--rock);
}

.page-contact .fix-stat__value {
  margin: 0;
  font-size: 17px;
  color: var(--gold);
}

.page-contact .fix-aside .btn {
  margin-top: 22px;
}

/* ---------- 准备清单 ---------- */

.page-contact .checklist {
  list-style: none;
  margin: 30px 0 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-contact .checklist__item {
  display: grid;
  grid-template-columns: 22px minmax(0, 1fr);
  gap: 4px 14px;
  align-content: start;
  padding: 16px 18px;
  border: 1px solid var(--line);
  background: rgba(27, 62, 99, .26);
  transition: border-color var(--dur) var(--ease), background var(--dur) var(--ease);
}

.page-contact .checklist__item:hover {
  border-color: var(--line-strong);
  background: rgba(27, 62, 99, .44);
}

.page-contact .checklist__item::before {
  content: "";
  grid-column: 1;
  grid-row: 1;
  width: 13px;
  height: 7px;
  margin-top: 7px;
  border-left: 2px solid var(--mint);
  border-bottom: 2px solid var(--mint);
  transform: rotate(-45deg);
}

.page-contact .checklist__title {
  grid-column: 2;
  font-family: var(--font-head);
  font-size: 15px;
  font-weight: 700;
  color: var(--paper);
}

.page-contact .checklist__text {
  grid-column: 2;
  font-size: 14px;
  line-height: 1.72;
  color: var(--ink-dim);
}

/* ---------- 底部行动区 ---------- */

.page-contact .contact-cta {
  padding-bottom: clamp(52px, 8vw, 96px);
}

.page-contact .cta-board {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
  padding: 30px 24px;
  border: 1px solid var(--line-strong);
  background:
    radial-gradient(560px 240px at 96% 0%, rgba(255, 106, 43, .14), transparent 66%),
    linear-gradient(140deg, rgba(27, 62, 99, .62), rgba(10, 26, 47, .50));
}

.page-contact .cta-board__title {
  margin: 0;
  font-family: var(--font-head);
  font-size: clamp(22px, 3vw, 30px);
  font-weight: 800;
  letter-spacing: -.01em;
  color: var(--paper);
}

.page-contact .cta-board__text {
  margin: 14px 0 0;
  max-width: 62ch;
  font-size: 15px;
  line-height: 1.8;
  color: var(--ink-soft);
}

.page-contact .cta-board__text a {
  color: var(--gold);
  text-decoration: none;
  border-bottom: 1px solid rgba(232, 181, 74, .4);
  overflow-wrap: anywhere;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-contact .cta-board__text a:hover {
  color: var(--signal);
  border-bottom-color: var(--signal);
}

.page-contact .cta-board__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-content: start;
}

/* ---------- 响应式 ---------- */

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

  .page-contact .response-panel__item {
    grid-template-columns: 1fr auto;
    align-items: baseline;
  }

  .page-contact .response-panel__label {
    grid-column: 1;
  }

  .page-contact .response-panel__text {
    grid-column: 1;
  }

  .page-contact .response-panel__link {
    grid-column: 2;
    grid-row: 1 / span 2;
    align-self: center;
    margin-top: 0;
  }
}

@media (min-width: 900px) {
  .page-contact .contact-hero__grid {
    grid-template-columns: 1.15fr .85fr;
    gap: 56px;
    align-items: end;
  }

  .page-contact .cta-board {
    grid-template-columns: 1.4fr .6fr;
    align-items: center;
    padding: 38px 36px;
  }

  .page-contact .cta-board__actions {
    justify-content: flex-end;
  }
}

@media (min-width: 1000px) {
  .page-contact .channel-layout {
    grid-template-columns: 1.15fr .85fr;
    gap: 32px;
    align-items: start;
  }

  .page-contact .response-panel {
    position: sticky;
    top: calc(var(--header-h) + 24px);
    padding: 30px 28px;
  }

  .page-contact .coop-grid {
    grid-template-columns: .92fr 1.08fr;
    gap: 44px;
    align-items: center;
  }

  .page-contact .fix-layout {
    grid-template-columns: 1.25fr .75fr;
    gap: 36px;
    align-items: start;
  }

  .page-contact .fix-aside {
    position: sticky;
    top: calc(var(--header-h) + 24px);
    padding: 30px 28px;
  }
}

@media (max-width: 420px) {
  .page-contact .contact-rail__row {
    grid-template-columns: 1fr;
    gap: 4px;
  }

  .page-contact .channel-card,
  .page-contact .channel-card__body {
    padding-left: 18px;
    padding-right: 18px;
  }

  .page-contact .fix-list__item {
    grid-template-columns: 34px minmax(0, 1fr);
    gap: 12px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .channel-card,
  .page-contact .channel-card::before,
  .page-contact .checklist__item,
  .page-contact .coop-tracks__item {
    transition: none;
  }
}