/* ══════════════════════════════════════════
   合作洽谈 · 页面专属样式
   作用域：.page-contact
   ══════════════════════════════════════════ */

.page-contact {
  --cc-card-bg: rgba(242, 234, 215, 0.05);
  --cc-card-line: rgba(127, 154, 166, 0.3);
  --cc-soft: rgba(242, 234, 215, 0.76);
  background: var(--night);
  color: var(--cream);
  overflow-x: hidden;
}

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

.page-contact .is-hidden {
  display: none !important;
}

.page-contact .media {
  margin: 0;
}

.page-contact .media__img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

.page-contact .media__caption {
  margin-top: 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.65;
  letter-spacing: 0.02em;
  color: var(--mist);
}

/* ── 通用区块标题 ── */
.page-contact .contact-section-head {
  max-width: 62ch;
  margin-bottom: 26px;
}

.page-contact .eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--gold);
}

.page-contact .eyebrow::before {
  content: "";
  width: 22px;
  height: 2px;
  flex: 0 0 auto;
  background: var(--spine-x);
}

.page-contact .section-title {
  margin: 12px 0 12px;
  font-family: var(--font-display);
  font-size: clamp(25px, 3.6vw, 36px);
  font-weight: 600;
  line-height: 1.18;
  letter-spacing: 0.015em;
  color: var(--cream);
  text-wrap: balance;
}

.page-contact .contact-section-head__lede {
  margin: 0;
  font-size: 15.5px;
  line-height: 1.8;
  color: var(--cc-soft);
}

/* ══════ 1. 首屏 ══════ */
.page-contact .contact-hero {
  position: relative;
  overflow: hidden;
  padding-block: clamp(36px, 6vw, 68px) clamp(40px, 6vw, 76px);
  background:
    radial-gradient(circle at 84% 6%, rgba(63, 240, 208, 0.14), transparent 46%),
    radial-gradient(circle at 8% 96%, rgba(255, 162, 31, 0.13), transparent 50%),
    var(--night);
}

.page-contact .contact-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(127, 154, 166, 0.09) 1px, transparent 1px),
    linear-gradient(90deg, rgba(127, 154, 166, 0.09) 1px, transparent 1px);
  background-size: 68px 68px;
  -webkit-mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.85), transparent 76%);
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.85), transparent 76%);
  pointer-events: none;
}

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

.page-contact .breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin-bottom: 30px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.05em;
}

.page-contact .breadcrumbs__item {
  color: var(--mist);
  text-decoration: none;
}

.page-contact a.breadcrumbs__item:hover,
.page-contact a.breadcrumbs__item:focus-visible {
  color: var(--cyan);
}

.page-contact .breadcrumbs__item[aria-current="page"] {
  color: var(--gold);
}

.page-contact .contact-crumb-sep {
  color: rgba(127, 154, 166, 0.7);
}

.page-contact .contact-hero__split {
  display: grid;
  grid-template-columns: 1fr;
  gap: 30px;
}

.page-contact .contact-hero__title {
  margin: 14px 0 0;
  font-family: var(--font-display);
  font-size: clamp(33px, 5.4vw, 60px);
  font-weight: 600;
  line-height: 1.1;
  letter-spacing: 0.015em;
  color: var(--cream);
  text-wrap: balance;
}

.page-contact .contact-hero__title em {
  font-style: normal;
  background: linear-gradient(96deg, var(--gold) 10%, var(--cyan) 92%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.page-contact .contact-hero__lede {
  margin: 20px 0 0;
  max-width: 54ch;
  font-size: 16px;
  line-height: 1.85;
  color: var(--cc-soft);
}

.page-contact .contact-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.page-contact .contact-hero__facts {
  display: grid;
  gap: 14px;
  margin: 34px 0 0;
  padding: 22px 0 0;
  list-style: none;
  border-top: 1px solid var(--line);
}

.page-contact .contact-hero__facts li {
  display: flex;
  align-items: baseline;
  gap: 12px;
  font-size: 13.5px;
  line-height: 1.6;
  color: var(--cc-soft);
}

.page-contact .contact-hero__factnum {
  flex: 0 0 auto;
  min-width: 62px;
  font-size: 20px;
  font-weight: 600;
  color: var(--cyan);
}

.page-contact .contact-hero__media .media__frame {
  border: 1px solid rgba(255, 162, 31, 0.28);
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--glass);
}

/* ══════ 2. 筛选条 ══════ */
.page-contact .contact-filterstrip {
  position: sticky;
  top: var(--topbar-h);
  z-index: 20;
  padding-block: 12px;
  background: rgba(14, 43, 36, 0.94);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.page-contact .filter-bar {
  display: flex;
  flex-wrap: nowrap;
  gap: 8px;
  overflow-x: auto;
  padding-bottom: 2px;
  scrollbar-width: none;
}

.page-contact .filter-bar::-webkit-scrollbar {
  display: none;
}

.page-contact .chip {
  flex: 0 0 auto;
  min-height: 42px;
  padding: 9px 17px;
  border: 1px solid var(--cc-card-line);
  border-radius: 999px;
  background: transparent;
  color: rgba(242, 234, 215, 0.72);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  white-space: nowrap;
  cursor: pointer;
  transition: background 0.24s var(--ease), color 0.24s var(--ease),
    border-color 0.24s var(--ease);
}

.page-contact .chip:hover {
  border-color: var(--gold);
  color: var(--cream);
}

.page-contact .chip[aria-pressed="true"] {
  background: var(--gold);
  border-color: var(--gold);
  color: var(--ink);
  font-weight: 600;
}

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

/* ══════ 3. 流程步进器 ══════ */
.page-contact .contact-flow {
  padding-block: clamp(48px, 7vw, 88px);
  background: linear-gradient(180deg, var(--turf) 0%, #0a211c 100%);
}

.page-contact .contact-flow__head {
  display: grid;
  grid-template-columns: 1fr;
  gap: 26px;
  margin-bottom: 44px;
}

.page-contact .contact-flow__media .media__frame {
  border: 1px solid var(--cc-card-line);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.page-contact .stepper {
  display: grid;
  grid-template-columns: 1fr;
  gap: 30px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-contact .stepper__step {
  position: relative;
  padding-top: 40px;
}

.page-contact .stepper__step::before {
  content: "";
  position: absolute;
  top: 10px;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--spine-x);
  opacity: 0.75;
}

.page-contact .stepper__dot {
  position: absolute;
  top: 3px;
  left: 0;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--gold);
  box-shadow: 0 0 0 5px rgba(255, 162, 31, 0.16);
}

.page-contact .stepper__step:nth-child(1) .stepper__dot {
  background: var(--bronze);
  box-shadow: 0 0 0 5px rgba(107, 74, 28, 0.22);
}

.page-contact .stepper__step:nth-child(2) .stepper__dot {
  background: var(--gold);
}

.page-contact .stepper__step:nth-child(3) .stepper__dot {
  background: var(--rust);
  box-shadow: 0 0 0 5px rgba(228, 85, 43, 0.18);
}

.page-contact .stepper__step:nth-child(4) .stepper__dot {
  background: var(--cyan);
  box-shadow: 0 0 0 5px rgba(63, 240, 208, 0.18);
}

.page-contact .stepper__num {
  display: block;
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--cyan);
}

.page-contact .stepper__title {
  margin: 8px 0 8px;
  font-family: var(--font-display);
  font-size: 19px;
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--cream);
}

.page-contact .stepper__text {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--cc-soft);
}

/* ══════ 4. 合作方向 + 渠道 ══════ */
.page-contact .contact-middle {
  padding-block: clamp(48px, 7vw, 88px);
  background: var(--night);
}

.page-contact .contact-middle__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 44px;
}

/* —— 主从切换 —— */
.page-contact .dir-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
}

.page-contact .dir-tab {
  display: block;
  width: 100%;
  min-height: 46px;
  margin-bottom: 8px;
  padding: 12px 15px;
  border: 1px solid var(--cc-card-line);
  border-left: 3px solid rgba(127, 154, 166, 0.45);
  border-radius: var(--radius);
  background: var(--cc-card-bg);
  color: rgba(242, 234, 215, 0.8);
  font-family: var(--font-body);
  font-size: 15px;
  line-height: 1.45;
  text-align: left;
  cursor: pointer;
  transition: background 0.24s var(--ease), border-color 0.24s var(--ease),
    color 0.24s var(--ease);
}

.page-contact .dir-tab:hover {
  border-color: rgba(255, 162, 31, 0.55);
  color: var(--cream);
}

.page-contact .dir-tab[aria-selected="true"] {
  background: rgba(255, 162, 31, 0.1);
  border-left-color: var(--gold);
  color: var(--cream);
  font-weight: 600;
}

.page-contact .dir-panel {
  padding: 22px 20px;
  border: 1px solid var(--cc-card-line);
  border-radius: var(--radius-lg);
  background: linear-gradient(
    180deg,
    rgba(242, 234, 215, 0.075),
    rgba(242, 234, 215, 0.02)
  );
}

.page-contact .dir-panel__title {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-size: 21px;
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--gold);
}

.page-contact .dir-panel__intro {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--cc-soft);
}

.page-contact .panel-fields {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  margin: 20px 0 0;
  padding-top: 18px;
  border-top: 1px solid var(--line);
}

.page-contact .panel-fields dt {
  margin-bottom: 4px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--cyan);
}

.page-contact .panel-fields dd {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: rgba(242, 234, 215, 0.74);
}

/* —— 渠道卡片 —— */
.page-contact .channel-list {
  display: grid;
  gap: 14px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-contact .channel-card {
  position: relative;
  padding: 20px 20px 20px 24px;
  border: 1px solid var(--cc-card-line);
  border-radius: var(--radius-lg);
  background: var(--glass);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  overflow: hidden;
  transition: transform 0.24s var(--ease), border-color 0.24s var(--ease);
}

.page-contact .channel-card::before {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  left: 0;
  width: 3px;
  background: var(--spine);
}

.page-contact .channel-card:hover {
  transform: translateY(-4px);
  border-color: rgba(63, 240, 208, 0.45);
}

.page-contact .channel-card--time::before {
  background: linear-gradient(180deg, var(--pulse) 0%, var(--gold) 100%);
}

.page-contact .channel-card__label {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--gold);
}

.page-contact .channel-card__value {
  display: block;
  margin-top: 10px;
  font-family: var(--font-mono);
  font-size: 15.5px;
  line-height: 1.5;
  color: var(--cream);
  word-break: break-word;
}

.page-contact .channel-card__value--tel {
  letter-spacing: 0.07em;
}

.page-contact .channel-card__note {
  margin: 10px 0 0;
  font-size: 13.5px;
  line-height: 1.75;
  color: rgba(242, 234, 215, 0.7);
}

.page-contact .channel-footnote {
  margin: 20px 0 0;
  padding-top: 16px;
  border-top: 1px solid var(--line);
  font-size: 13.5px;
  line-height: 1.8;
  color: var(--mist);
}

.page-contact .channel-footnote a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(63, 240, 208, 0.4);
}

.page-contact .channel-footnote a:hover {
  border-bottom-color: var(--cyan);
}

/* ══════ 5. 来信信息（纸底） ══════ */
.page-contact .contact-brief {
  padding-block: clamp(48px, 7vw, 88px);
  background: var(--cream);
  color: var(--ink);
}

.page-contact .contact-brief .section-title {
  color: var(--ink);
}

.page-contact .contact-section-head--paper .eyebrow {
  color: var(--rust);
}

.page-contact .contact-section-head--paper .eyebrow::before {
  background: linear-gradient(90deg, var(--bronze), var(--rust));
}

.page-contact .contact-section-head--paper .contact-section-head__lede {
  color: rgba(29, 22, 16, 0.74);
}

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

.page-contact .brief-list__item {
  display: grid;
  grid-template-columns: 42px minmax(0, 1fr);
  gap: 14px;
  padding: 18px 0;
  border-bottom: 1px solid var(--line-ink);
  align-items: start;
}

.page-contact .brief-list__num {
  padding-top: 3px;
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--rust);
}

.page-contact .brief-list__label {
  display: block;
  font-size: 16px;
  font-weight: 600;
  line-height: 1.5;
  color: var(--ink);
}

.page-contact .brief-list__hint {
  margin: 6px 0 0;
  font-size: 14px;
  line-height: 1.78;
  color: rgba(29, 22, 16, 0.72);
}

/* ══════ 6. 地址与备案 ══════ */
.page-contact .contact-record {
  padding-block: clamp(44px, 6vw, 80px);
  background: var(--night);
}

.page-contact .record-slab {
  position: relative;
  padding: clamp(24px, 4vw, 42px);
  border-radius: var(--radius-lg);
  background: var(--cream);
  color: var(--ink);
  overflow: hidden;
}

.page-contact .record-slab::after {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  right: 0;
  width: 6px;
  background: var(--spine);
}

.page-contact .record-slab__stamp {
  display: inline-block;
  margin: 0 0 22px;
  padding: 5px 12px;
  border: 1px dashed rgba(29, 22, 16, 0.35);
  border-radius: var(--radius);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--rust);
  transform: rotate(-1.4deg);
}

.page-contact .record-list {
  display: grid;
  gap: 16px;
  margin: 0;
}

.page-contact .record-list__row {
  display: grid;
  gap: 5px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--line-ink);
}

.page-contact .record-list__row:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}

.page-contact .record-list dt {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--rust);
}

.page-contact .record-list dd {
  margin: 0;
  font-size: 15.5px;
  line-height: 1.7;
  color: var(--ink);
  word-break: break-word;
}

.page-contact .record-slab__note {
  margin: 26px 0 0;
  padding-top: 18px;
  border-top: 1px solid var(--line-ink);
  font-size: 13.5px;
  line-height: 1.85;
  color: rgba(29, 22, 16, 0.75);
}

.page-contact .record-slab__note a {
  color: var(--rust);
  text-decoration: none;
  border-bottom: 1px solid rgba(228, 85, 43, 0.4);
}

.page-contact .record-slab__note a:hover {
  border-bottom-color: var(--rust);
}

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

  .page-contact .brief-list__item {
    grid-template-columns: 52px minmax(0, 1fr);
    gap: 20px;
    padding: 20px 0;
  }
}

@media (min-width: 760px) {
  .page-contact .filter-bar {
    flex-wrap: wrap;
    overflow: visible;
  }

  .page-contact .stepper {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 34px 26px;
  }

  .page-contact .stepper__step {
    padding-right: 20px;
  }

  .page-contact .dir-layout {
    grid-template-columns: 216px minmax(0, 1fr);
    gap: 24px;
    align-items: start;
  }
}

@media (min-width: 1000px) {
  .page-contact .contact-hero__split {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    gap: 46px;
    align-items: center;
  }

  .page-contact .contact-hero__facts {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 20px;
  }

  .page-contact .contact-hero__facts li {
    flex-direction: column;
    gap: 6px;
  }

  .page-contact .contact-flow__head {
    grid-template-columns: minmax(0, 1fr) minmax(0, 0.78fr);
    gap: 44px;
    align-items: start;
  }

  .page-contact .contact-flow__head .contact-section-head {
    margin-bottom: 0;
  }

  .page-contact .stepper {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 26px;
  }

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

  .page-contact .contact-middle__grid:has(> .is-hidden) {
    grid-template-columns: minmax(0, 1fr);
  }

  .page-contact .contact-filterstrip {
    top: 0;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .chip,
  .page-contact .dir-tab,
  .page-contact .channel-card {
    transition: none;
  }

  .page-contact .channel-card:hover {
    transform: none;
  }
}