.page-contact {
  --ct-gap: clamp(24px, 4vw, 48px);
  background: var(--ink);
  color: var(--white);
}

/* ---------- 首屏 ---------- */
.page-contact .contact-top {
  position: relative;
  overflow: hidden;
  padding: 26px 0 52px;
  border-bottom: 1px solid var(--line);
  background:
    radial-gradient(110% 130% at 92% 0%, rgba(25, 240, 200, .16), transparent 56%),
    radial-gradient(80% 110% at 0% 110%, rgba(255, 106, 31, .12), transparent 62%),
    linear-gradient(180deg, var(--charcoal), var(--ink));
}

.page-contact .contact-top::after {
  content: "";
  position: absolute;
  top: -20%;
  right: -72px;
  width: 180px;
  height: 145%;
  background: linear-gradient(180deg, rgba(255, 106, 31, .2), rgba(255, 106, 31, 0));
  transform: skewX(-15deg);
  pointer-events: none;
}

.page-contact .contact-top > .shell {
  position: relative;
  z-index: 1;
}

.page-contact .contact-top__grid {
  display: grid;
  gap: 20px;
  margin-top: 24px;
}

.page-contact .contact-top__idx {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding-top: 10px;
  border-top: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--muted);
}

.page-contact .contact-top__idx b {
  font-size: 24px;
  line-height: 1;
  letter-spacing: 0;
  color: var(--cyan);
}

.page-contact .contact-top h1 {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(34px, 7vw, 64px);
  line-height: 1.08;
  letter-spacing: -.01em;
  margin: 12px 0 0;
}

.page-contact .ct-hl {
  color: var(--cyan);
}

.page-contact .contact-top .lead {
  margin: 20px 0 0;
  max-width: 62ch;
  font-size: 17px;
  line-height: 1.78;
  color: var(--muted);
}

/* ---------- 通道布局 ---------- */
.page-contact .routes-layout {
  display: grid;
  gap: 34px;
}

.page-contact .routes-layout .prose {
  margin: 16px 0 0;
}

/* 通道选择器 */
.page-contact .route-picker {
  position: relative;
  margin-top: 26px;
}

.page-contact .route-input {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
  border: 0;
}

.page-contact .route-tabs {
  display: grid;
  gap: 8px;
}

.page-contact .route-tab {
  display: grid;
  grid-template-columns: 12px minmax(0, 1fr) auto;
  align-items: center;
  gap: 14px;
  padding: 15px 16px;
  border: 1px solid var(--line);
  background: var(--slate);
  cursor: pointer;
  transition: border-color .16s var(--ease), background-color .16s var(--ease), transform .16s var(--ease);
}

.page-contact .route-tab:hover {
  border-color: var(--cyan);
  transform: translateX(3px);
}

.page-contact .route-tab__dot {
  width: 10px;
  height: 10px;
  border: 1px solid var(--muted);
  border-radius: 50%;
  transition: background-color .16s var(--ease), border-color .16s var(--ease), box-shadow .16s var(--ease);
}

.page-contact .route-tab__text {
  display: grid;
  gap: 3px;
  min-width: 0;
}

.page-contact .route-tab__name {
  font-size: 16px;
  font-weight: 600;
  letter-spacing: .01em;
  color: var(--white);
}

.page-contact .route-tab__desc {
  font-size: 13px;
  line-height: 1.5;
  color: var(--muted);
}

.page-contact .route-tab__idx {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--muted);
}

.page-contact #route-support:checked ~ .route-tabs .route-tab[for="route-support"],
.page-contact #route-media:checked ~ .route-tabs .route-tab[for="route-media"],
.page-contact #route-watch:checked ~ .route-tabs .route-tab[for="route-watch"] {
  border-color: var(--cyan);
  background: linear-gradient(90deg, rgba(25, 240, 200, .13), rgba(25, 240, 200, 0) 72%), var(--slate);
  transform: translateX(3px);
}

.page-contact #route-support:checked ~ .route-tabs .route-tab[for="route-support"] .route-tab__dot,
.page-contact #route-media:checked ~ .route-tabs .route-tab[for="route-media"] .route-tab__dot,
.page-contact #route-watch:checked ~ .route-tabs .route-tab[for="route-watch"] .route-tab__dot {
  background: var(--cyan);
  border-color: var(--cyan);
  box-shadow: 0 0 0 4px rgba(25, 240, 200, .16);
}

.page-contact #route-support:checked ~ .route-tabs .route-tab[for="route-support"] .route-tab__idx,
.page-contact #route-media:checked ~ .route-tabs .route-tab[for="route-media"] .route-tab__idx,
.page-contact #route-watch:checked ~ .route-tabs .route-tab[for="route-watch"] .route-tab__idx {
  color: var(--cyan);
}

.page-contact #route-support:focus-visible ~ .route-tabs .route-tab[for="route-support"],
.page-contact #route-media:focus-visible ~ .route-tabs .route-tab[for="route-media"],
.page-contact #route-watch:focus-visible ~ .route-tabs .route-tab[for="route-watch"] {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
}

/* 通道说明面板 */
.page-contact .route-panels {
  margin-top: 14px;
}

.page-contact .route-panel {
  display: none;
  padding: 22px 20px 24px;
  border: 1px solid var(--line);
  border-left: 2px solid var(--cyan);
  background: var(--charcoal);
}

.page-contact #route-support:checked ~ .route-panels .route-panel[data-route="support"],
.page-contact #route-media:checked ~ .route-panels .route-panel[data-route="media"],
.page-contact #route-watch:checked ~ .route-panels .route-panel[data-route="watch"] {
  display: block;
}

.page-contact .route-panel__title {
  margin: 0 0 12px;
  font-size: 18px;
  font-weight: 600;
  line-height: 1.4;
  color: var(--white);
}

.page-contact .route-panel p {
  margin: 0 0 14px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--muted);
}

.page-contact .route-panel ul {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 9px;
}

.page-contact .route-panel li {
  position: relative;
  padding-left: 18px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--white);
}

.page-contact .route-panel li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .68em;
  width: 8px;
  height: 1px;
  background: var(--cyan);
}

.page-contact .route-panel a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(25, 240, 200, .4);
}

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

/* 直接联系方式 */
.page-contact .contact-card {
  padding: 24px 22px;
  border: 1px solid rgba(231, 180, 74, .45);
  background: linear-gradient(180deg, rgba(231, 180, 74, .08), rgba(231, 180, 74, 0) 62%), var(--slate);
}

.page-contact .contact-card__kicker {
  margin: 0 0 18px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--gold);
}

.page-contact .contact-card__list {
  margin: 0;
  border-top: 1px solid var(--line);
}

.page-contact .contact-card__row {
  display: grid;
  gap: 6px;
  padding: 14px 0;
  border-bottom: 1px solid var(--line);
}

.page-contact .contact-card__row dt {
  font-size: 12px;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--muted);
}

.page-contact .contact-card__row dd {
  margin: 0;
  font-family: var(--font-mono);
  font-size: clamp(15px, 2.4vw, 18px);
  font-weight: 700;
  letter-spacing: -.01em;
  color: var(--white);
  word-break: break-word;
}

.page-contact .contact-card__note {
  margin: 16px 0 0;
  font-size: 13px;
  line-height: 1.72;
  color: var(--muted);
}

.page-contact .side-figure {
  margin: 18px 0 0;
}

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

/* ---------- 提交准备 ---------- */
.page-contact .contact-brief .lead {
  margin: 16px 0 0;
  max-width: 64ch;
}

.page-contact .brief-grid {
  display: grid;
  gap: 16px;
  margin-top: 30px;
}

.page-contact .brief-card {
  position: relative;
  padding: 24px 20px 26px;
  border: 1px solid var(--line);
  background: var(--charcoal);
  overflow: hidden;
  transition: border-color .16s var(--ease), transform .16s var(--ease);
}

.page-contact .brief-card:hover {
  border-color: var(--cyan);
  transform: translateY(-3px);
}

.page-contact .brief-card::after {
  content: "";
  position: absolute;
  right: 0;
  bottom: 0;
  width: 26px;
  height: 26px;
  background: linear-gradient(135deg, transparent 50%, rgba(255, 106, 31, .55) 50%);
}

.page-contact .brief-card__idx {
  display: block;
  margin-bottom: 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .18em;
  color: var(--cyan);
}

.page-contact .brief-card h3 {
  margin: 0 0 14px;
  font-family: var(--font-display);
  font-size: 21px;
  line-height: 1.35;
  color: var(--white);
}

.page-contact .brief-card ul {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 10px;
}

.page-contact .brief-card li {
  position: relative;
  padding-left: 16px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--muted);
}

.page-contact .brief-card li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .72em;
  width: 6px;
  height: 6px;
  border: 1px solid var(--cyan);
}

/* ---------- 召集人支持 ---------- */
.page-contact .watch-support {
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background:
    linear-gradient(180deg, rgba(11, 31, 26, 0), rgba(20, 22, 26, .85)),
    var(--ink);
}

.page-contact .watch-support__grid {
  display: grid;
  gap: 30px;
}

.page-contact .watch-support__body .prose {
  margin: 16px 0 0;
}

.page-contact .support-list {
  margin: 28px 0 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--line);
}

.page-contact .support-list li {
  display: grid;
  gap: 6px;
  padding: 16px 0;
  border-bottom: 1px solid var(--line);
}

.page-contact .support-list strong {
  font-size: 14px;
  font-weight: 600;
  letter-spacing: .04em;
  color: var(--cyan);
}

.page-contact .support-list span {
  font-size: 15px;
  line-height: 1.75;
  color: var(--muted);
}

.page-contact .watch-stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  border: 1px solid var(--line);
  background: var(--line);
  align-self: start;
}

.page-contact .watch-stats__cell {
  padding: 20px 16px;
  background: var(--slate);
}

.page-contact .watch-stats__num {
  display: block;
  font-family: var(--font-mono);
  font-size: 28px;
  font-weight: 700;
  line-height: 1;
  color: var(--cyan);
}

.page-contact .watch-stats__label {
  display: block;
  margin-top: 9px;
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--muted);
}

/* ---------- 地址与备案 ---------- */
.page-contact .address-grid {
  display: grid;
  gap: 24px;
  margin-top: 30px;
}

.page-contact .address-card {
  padding: 26px 22px 22px;
  border: 1px solid var(--line);
  background: var(--charcoal);
}

.page-contact .address-label {
  margin: 0 0 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--gold);
}

.page-contact .address-value {
  margin: 0 0 24px;
  font-size: 17px;
  line-height: 1.7;
  color: var(--white);
}

.page-contact .address-value--mono {
  font-family: var(--font-mono);
  font-weight: 700;
  letter-spacing: .04em;
  margin-bottom: 20px;
}

.page-contact .address-note {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--muted);
}

.page-contact .address-note a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(25, 240, 200, .4);
}

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

.page-contact .address-map {
  display: block;
  width: 100%;
  height: auto;
  margin-top: 22px;
  border: 1px solid var(--line);
}

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

/* ---------- 尾部引导 ---------- */
.page-contact .followup-bar {
  display: grid;
  gap: 20px;
  align-items: center;
  padding: 26px 22px;
  border: 1px solid var(--line);
  border-left: 2px solid var(--orange);
  background: linear-gradient(90deg, rgba(255, 106, 31, .1), rgba(255, 106, 31, 0) 60%), var(--charcoal);
}

.page-contact .followup-bar p {
  margin: 0;
  font-size: 15px;
  line-height: 1.78;
  color: var(--muted);
}

.page-contact .followup-bar a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(25, 240, 200, .4);
}

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

.page-contact .followup-bar .btn-row a {
  border-bottom: none;
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-contact .support-list li {
    grid-template-columns: 132px minmax(0, 1fr);
    gap: 20px;
    align-items: baseline;
  }

  .page-contact .followup-bar {
    grid-template-columns: minmax(0, 1fr) auto;
    padding: 28px 30px;
  }
}

@media (min-width: 760px) {
  .page-contact .brief-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 20px;
  }
}

@media (min-width: 900px) {
  .page-contact .contact-top {
    padding: 30px 0 64px;
  }

  .page-contact .contact-top__grid {
    grid-template-columns: 140px minmax(0, 1fr);
    gap: 44px;
    align-items: start;
    margin-top: 36px;
  }

  .page-contact .contact-top__idx {
    flex-direction: column;
    gap: 10px;
  }

  .page-contact .address-grid {
    grid-template-columns: minmax(0, .95fr) minmax(0, 1fr);
    gap: 36px;
    align-items: stretch;
  }

  .page-contact .address-figure {
    height: 100%;
  }

  .page-contact .address-figure img {
    height: 100%;
    min-height: 320px;
  }
}

@media (min-width: 960px) {
  .page-contact .watch-support__grid {
    grid-template-columns: minmax(0, 1fr) minmax(260px, .58fr);
    gap: 48px;
    align-items: start;
  }
}

@media (min-width: 1024px) {
  .page-contact .routes-layout {
    grid-template-columns: minmax(0, 1.08fr) minmax(300px, .76fr);
    gap: 52px;
    align-items: start;
  }

  .page-contact .routes-layout__side {
    position: sticky;
    top: calc(var(--header-h) + 28px);
  }
}

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

  .page-contact .route-tab:hover,
  .page-contact .brief-card:hover {
    transform: none;
  }
}