.page-contact {
  --contact-panel: rgba(18, 20, 58, .66);
  --contact-hair: rgba(199, 210, 224, .14);
  --contact-hair-strong: rgba(34, 211, 238, .42);
  --contact-glow: 0 26px 62px -36px rgba(34, 211, 238, .6);
  padding-bottom: clamp(44px, 7vw, 92px);
}

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  padding-top: clamp(14px, 3vw, 30px);
}

.page-contact .hero-split {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(24px, 4vw, 52px);
  align-items: center;
}

.page-contact .hero-copy {
  min-width: 0;
}

.page-contact .hero-title {
  margin: 14px 0 18px;
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(2.2rem, 6.4vw, 4.4rem);
  line-height: 1;
  letter-spacing: -0.04em;
  color: var(--white);
  text-transform: uppercase;
}

.page-contact .hero-title__accent {
  display: block;
  margin-top: .12em;
  color: var(--neon);
  text-shadow: 0 0 30px rgba(124, 77, 255, .45);
}

.page-contact .hero-lead {
  margin: 0;
  max-width: 58ch;
  color: var(--silver);
  font-size: clamp(1rem, 1.5vw, 1.13rem);
  line-height: 1.78;
}

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

.page-contact .hero-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 26px 0 0;
  padding: 0;
  list-style: none;
}

.page-contact .hero-visual {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-lg);
  border: 1px solid var(--contact-hair);
  background: var(--ink-900);
  box-shadow: var(--contact-glow);
}

.page-contact .hero-visual img {
  display: block;
  width: 100%;
  height: 100%;
  aspect-ratio: 16 / 10;
  object-fit: cover;
  opacity: .58;
  filter: saturate(.92) contrast(1.06);
}

.page-contact .hero-visual::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    linear-gradient(108deg, rgba(124, 77, 255, .26), transparent 46%),
    linear-gradient(0deg, rgba(6, 8, 18, .95) 6%, rgba(6, 8, 18, .12) 64%);
}

.page-contact .hero-panel {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 1;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 16px;
  padding: 18px 20px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .06em;
  color: var(--silver);
  background: linear-gradient(180deg, rgba(6, 8, 18, 0), rgba(6, 8, 18, .92));
}

.page-contact .hero-panel__text {
  text-transform: none;
}

.page-contact .hero-panel__meta {
  color: var(--cyan);
  text-transform: uppercase;
}

/* ---------- 章节头 ---------- */
.page-contact .sec-head {
  display: flex;
  align-items: flex-start;
  gap: clamp(14px, 2.4vw, 28px);
  margin-bottom: clamp(26px, 4vw, 44px);
}

.page-contact .sec-head__body {
  min-width: 0;
}

.page-contact .sec-head__title {
  margin: 0 0 10px;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: clamp(1.55rem, 3.3vw, 2.45rem);
  line-height: 1.1;
  letter-spacing: -0.03em;
  color: var(--white);
}

.page-contact .sec-head__lead {
  margin: 0;
  max-width: 64ch;
  color: var(--muted);
  line-height: 1.76;
}

/* ---------- 01 联系渠道 ---------- */
.page-contact .chan-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 18px;
}

.page-contact .chan-card {
  position: relative;
  padding: 26px 22px 24px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--contact-hair);
  background: var(--contact-panel);
  box-shadow: var(--shadow-panel);
  transition: transform .18s ease, border-color .18s ease;
}

.page-contact .chan-card:hover,
.page-contact .chan-card:focus-within {
  transform: translateY(-4px);
  border-color: var(--contact-hair-strong);
}

.page-contact .chan-card--primary {
  border-color: rgba(124, 77, 255, .48);
  background: linear-gradient(158deg, rgba(124, 77, 255, .18), rgba(18, 20, 58, .74) 58%);
}

.page-contact .chan-card--jade {
  border-color: rgba(34, 211, 238, .2);
  background: linear-gradient(158deg, rgba(11, 59, 60, .74), rgba(18, 20, 58, .6));
}

.page-contact .chan-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 16px;
}

.page-contact .chan-tag {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--cyan);
}

.page-contact .chan-title {
  margin: 0 0 10px;
  font-size: 1.14rem;
  font-weight: 700;
  line-height: 1.4;
  color: var(--white);
}

.page-contact .chan-text {
  margin: 0 0 20px;
  color: var(--muted);
  font-size: .96rem;
  line-height: 1.74;
}

.page-contact .chan-card .contact-chip {
  width: 100%;
  justify-content: flex-start;
  text-align: left;
}

.page-contact .chan-addr {
  margin: 0;
  font-family: var(--font-mono);
  font-size: .95rem;
  font-style: normal;
  line-height: 1.7;
  color: var(--white);
  word-break: break-word;
}

.page-contact .hours-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 20px;
  margin-top: 18px;
  padding: 18px 22px;
  border-radius: var(--radius-md);
  border: 1px solid rgba(50, 213, 131, .3);
  background: linear-gradient(96deg, rgba(50, 213, 131, .11), rgba(18, 20, 58, .56) 58%);
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: .04em;
}

.page-contact .hours-bar__label {
  color: var(--green);
  text-transform: uppercase;
  letter-spacing: .14em;
}

.page-contact .hours-bar__val {
  color: var(--white);
  font-size: 14px;
}

.page-contact .hours-bar__note {
  color: var(--muted);
  letter-spacing: 0;
  font-family: var(--font-body);
  font-size: .92rem;
}

/* ---------- 02 反馈准备清单 ---------- */
.page-contact .prep-list {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  margin: 0;
  padding: 0;
  list-style: none;
  border: 1px solid var(--contact-hair);
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--contact-hair);
}

.page-contact .prep-item {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 16px;
  padding: 24px 22px;
  background: var(--ink-850);
  transition: background-color .18s ease;
}

.page-contact .prep-item:hover {
  background: var(--ink-800);
}

.page-contact .prep-item__no {
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(1.8rem, 4vw, 2.5rem);
  line-height: .9;
  letter-spacing: -0.04em;
  color: transparent;
  -webkit-text-stroke: 1px rgba(124, 77, 255, .8);
}

.page-contact .prep-item__body {
  min-width: 0;
}

.page-contact .prep-item__body h3 {
  margin: 0 0 8px;
  font-size: 1.06rem;
  font-weight: 700;
  color: var(--white);
}

.page-contact .prep-item__body p {
  margin: 0;
  color: var(--muted);
  font-size: .95rem;
  line-height: 1.74;
}

.page-contact .prep-privacy {
  margin: 22px 0 0;
  color: var(--muted);
  font-size: .93rem;
  line-height: 1.7;
}

.page-contact .prep-privacy a {
  color: var(--lilac);
  text-decoration: underline;
  text-underline-offset: 3px;
}

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

/* ---------- 03 合作与内容提报 ---------- */
.page-contact .coop-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(24px, 3.6vw, 42px);
  align-items: start;
}

.page-contact .coop-main {
  min-width: 0;
}

.page-contact .coop-tabs {
  margin-bottom: 20px;
}

.page-contact .coop-panel {
  padding: 26px 22px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--contact-hair);
  background: linear-gradient(160deg, rgba(58, 16, 36, .55), rgba(18, 20, 58, .72) 62%);
  box-shadow: var(--shadow-panel);
}

.page-contact .coop-panel__title {
  margin: 0 0 12px;
  font-size: clamp(1.1rem, 2.2vw, 1.36rem);
  font-weight: 800;
  line-height: 1.34;
  color: var(--white);
}

.page-contact .coop-panel__text {
  margin: 0 0 18px;
  color: var(--silver);
  font-size: .97rem;
  line-height: 1.78;
}

.page-contact .coop-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 9px;
  margin: 0 0 16px;
  padding: 0;
  list-style: none;
}

.page-contact .coop-panel__note {
  margin: 0;
  padding-top: 14px;
  border-top: 1px solid var(--contact-hair);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .04em;
  color: var(--muted);
}

.page-contact .coop-contact {
  margin: 20px 0 0;
  color: var(--muted);
  font-size: .95rem;
  line-height: 1.74;
}

.page-contact .coop-contact__mail {
  color: var(--cyan);
  font-family: var(--font-mono);
  font-weight: 500;
  word-break: break-all;
}

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

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

/* ---------- 04 跟进节奏 ---------- */
.page-contact .timeline {
  position: relative;
  display: grid;
  gap: 24px;
  margin: 0;
  padding: 0 0 0 28px;
  list-style: none;
}

.page-contact .timeline::before {
  content: "";
  position: absolute;
  left: 5px;
  top: 8px;
  bottom: 8px;
  width: 2px;
  background: linear-gradient(180deg, var(--cyan), var(--neon) 62%, rgba(124, 77, 255, 0));
}

.page-contact .tl-item {
  position: relative;
  padding: 20px 20px 20px 22px;
  border-radius: var(--radius-md);
  border: 1px solid var(--contact-hair);
  background: rgba(18, 20, 58, .5);
  transition: border-color .18s ease, transform .18s ease;
}

.page-contact .tl-item:hover {
  border-color: var(--contact-hair-strong);
  transform: translateX(4px);
}

.page-contact .tl-item::before {
  content: "";
  position: absolute;
  left: -28px;
  top: 26px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--ink-900);
  border: 2px solid var(--cyan);
  box-shadow: 0 0 0 4px rgba(34, 211, 238, .14);
}

.page-contact .tl-item__title {
  margin: 0 0 8px;
  font-size: 1.06rem;
  font-weight: 700;
  color: var(--white);
}

.page-contact .tl-item__text {
  margin: 0 0 12px;
  color: var(--muted);
  font-size: .95rem;
  line-height: 1.74;
}

.page-contact .tl-item__meta {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--orange);
}

/* ---------- 响应式 ---------- */
@media (min-width: 700px) {
  .page-contact .chan-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-contact .prep-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 940px) {
  .page-contact .hero-split {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, .95fr);
  }

  .page-contact .hero-visual img {
    aspect-ratio: 16 / 11;
  }

  .page-contact .coop-layout {
    grid-template-columns: minmax(0, 1.08fr) minmax(0, .92fr);
  }

  .page-contact .coop-visual {
    position: sticky;
    top: calc(var(--bar-h) + 28px);
  }
}

@media (max-width: 520px) {
  .page-contact .hero-panel__meta {
    display: none;
  }

  .page-contact .hours-bar {
    padding: 16px 18px;
  }

  .page-contact .prep-item {
    padding: 20px 18px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .chan-card,
  .page-contact .tl-item,
  .page-contact .prep-item {
    transition: none;
  }
}