.page-contact {
  --contact-line: rgba(237, 241, 247, .10);
  --contact-line-strong: rgba(237, 241, 247, .22);
  --contact-panel: #131C2E;
  --contact-panel-deep: #0A1120;
  display: block;
  background: var(--nfs-indigo);
  color: var(--nfs-white);
}

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  position: relative;
  overflow: hidden;
  background: var(--nfs-charcoal);
  border-bottom: 1px solid var(--contact-line);
}

.page-contact .contact-hero-media {
  position: absolute;
  inset: 0;
  opacity: .34;
}

.page-contact .contact-hero-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 42%;
  filter: saturate(.55) contrast(1.08);
}

.page-contact .contact-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    linear-gradient(180deg, rgba(5, 8, 15, .70) 0%, rgba(14, 21, 38, .94) 100%),
    repeating-linear-gradient(90deg, transparent 0 79px, var(--contact-line) 79px 80px);
}

.page-contact .contact-hero-inner {
  position: relative;
  z-index: 1;
  padding: calc(var(--header-h) + 40px) var(--gutter) 48px;
  max-width: var(--shell-max);
  margin: 0 auto;
}

.page-contact .contact-hero-inner .breadcrumb {
  margin-bottom: 28px;
}

.page-contact .contact-hero-title {
  margin: 14px 0 0;
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(38px, 9vw, 96px);
  line-height: 1.05;
  letter-spacing: .06em;
  color: var(--nfs-white);
  max-width: 15em;
}

.page-contact .contact-hero-lede {
  margin: 22px 0 0;
  max-width: 34em;
  font-size: 16px;
  line-height: 1.75;
  color: var(--nfs-mist);
}

.page-contact .hero-facts {
  list-style: none;
  margin: 36px 0 0;
  padding: 18px 0 0;
  border-top: 1px solid var(--contact-line-strong);
  display: grid;
  gap: 12px;
}

.page-contact .hero-facts li {
  display: flex;
  align-items: baseline;
  gap: 10px;
  font-size: 14px;
  color: var(--nfs-mist);
}

.page-contact .hero-fact-num {
  color: var(--nfs-cyan);
  font-size: 12px;
  letter-spacing: .08em;
}

/* ---------- 联系渠道 ---------- */
.page-contact .channel-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
  margin-top: 40px;
}

.page-contact .channel-col {
  min-width: 0;
}

.page-contact .channel-card {
  position: relative;
  padding: 24px 0 28px;
  border-top: 1px solid var(--contact-line-strong);
}

.page-contact .channel-card::before {
  content: "";
  position: absolute;
  top: -1px;
  left: 0;
  width: 48px;
  height: 1px;
  background: var(--contact-line-strong);
}

.page-contact .channel-card--primary::before {
  width: 84px;
  height: 2px;
  background: var(--nfs-amber);
}

.page-contact .channel-label {
  margin: 0;
  font-size: 13px;
  letter-spacing: .08em;
  color: var(--nfs-mist);
}

.page-contact .channel-value {
  margin: 12px 0 0;
  font-size: clamp(19px, 4.4vw, 27px);
  font-weight: 700;
  line-height: 1.3;
  color: var(--nfs-white);
  letter-spacing: .01em;
  word-break: break-all;
}

.page-contact .channel-value--text {
  font-family: var(--font-body);
  font-weight: 500;
  font-size: clamp(17px, 3.6vw, 22px);
  letter-spacing: .02em;
  word-break: break-word;
}

.page-contact .channel-card--primary .channel-value {
  color: var(--nfs-amber);
}

.page-contact .channel-note {
  margin: 12px 0 0;
  max-width: 40em;
  font-size: 15px;
  line-height: 1.75;
  color: var(--nfs-mist);
}

.page-contact .channel-hint {
  margin: 10px 0 0;
  font-size: 13px;
  color: var(--nfs-mist);
  opacity: .78;
}

.page-contact .channel-hint::before {
  content: "▸ ";
  color: var(--nfs-cyan);
}

/* 用途边界对照 */
.page-contact .scope-block {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--contact-line);
  border: 1px solid var(--contact-line);
}

.page-contact .scope-col {
  padding: 20px 18px 22px;
  background: var(--contact-panel);
}

.page-contact .scope-title {
  margin: 0 0 14px;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .12em;
  color: var(--nfs-mist);
}

.page-contact .scope-col--yes .scope-title {
  color: var(--nfs-cyan);
}

.page-contact .scope-col--no .scope-title {
  color: var(--nfs-red);
}

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

.page-contact .scope-list li {
  position: relative;
  padding-left: 16px;
  font-size: 14.5px;
  line-height: 1.6;
  color: var(--nfs-white);
}

.page-contact .scope-list li::before {
  position: absolute;
  left: 0;
  top: 0;
}

.page-contact .scope-col--yes .scope-list li::before {
  content: "+";
  color: var(--nfs-cyan);
}

.page-contact .scope-col--no .scope-list li::before {
  content: "–";
  color: var(--nfs-red);
}

.page-contact .radar-figure {
  margin: 28px 0 0;
  padding: 20px;
  border: 1px solid var(--contact-line);
  background:
    radial-gradient(circle at 50% 45%, rgba(53, 224, 200, .08), transparent 62%),
    var(--contact-panel-deep);
}

.page-contact .radar-figure img {
  display: block;
  width: 100%;
  max-width: 320px;
  height: auto;
  margin: 0 auto;
  object-fit: contain;
  opacity: .85;
}

.page-contact .radar-figure .media-caption {
  margin: 16px 0 0;
  font-size: 13px;
  line-height: 1.65;
  color: var(--nfs-mist);
  border-top: 1px solid var(--contact-line);
  padding-top: 12px;
}

/* ---------- 准备事项 ---------- */
.page-contact .prep-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
}

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

.page-contact .prep-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--contact-line);
  border-top: 1px solid var(--contact-line);
  border-bottom: 1px solid var(--contact-line);
}

.page-contact .prep-item {
  position: relative;
  padding: 20px 18px 22px;
  background: var(--nfs-indigo);
}

.page-contact .prep-num {
  display: block;
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--nfs-amber);
}

.page-contact .prep-title {
  margin: 8px 0 8px;
  font-size: 17px;
  font-weight: 700;
  line-height: 1.4;
  letter-spacing: .02em;
  color: var(--nfs-white);
}

.page-contact .prep-text {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--nfs-mist);
}

/* ---------- 合作类型 tabs ---------- */
.page-contact .coop-tabs {
  margin-top: 34px;
}

.page-contact .coop-tabs .tablist {
  display: flex;
  flex-wrap: nowrap;
  gap: 0;
  overflow-x: auto;
  border-bottom: 1px solid var(--contact-line-strong);
  padding-bottom: 0;
  scrollbar-width: thin;
}

.page-contact .coop-tabs .tab {
  flex: 0 0 auto;
  appearance: none;
  border: 0;
  border-bottom: 2px solid transparent;
  background: transparent;
  color: var(--nfs-mist);
  font-family: var(--font-body);
  font-size: 14.5px;
  font-weight: 700;
  letter-spacing: .04em;
  padding: 14px 18px 13px;
  cursor: pointer;
  transition: color .18s var(--ease), border-color .18s var(--ease);
}

.page-contact .coop-tabs .tab:hover {
  color: var(--nfs-white);
}

.page-contact .coop-tabs .tab[aria-selected="true"] {
  color: var(--nfs-amber);
  border-bottom-color: var(--nfs-amber);
}

.page-contact .coop-tabs .tab:focus-visible {
  outline: 2px solid var(--nfs-cyan);
  outline-offset: -2px;
}

.page-contact .coop-tabs .tabpanel {
  padding: 26px 0 4px;
  max-width: 72ch;
}

.page-contact .coop-tabs .tabpanel[hidden] {
  display: none;
}

.page-contact .panel-title {
  margin: 0;
  font-size: 22px;
  font-weight: 800;
  letter-spacing: .04em;
  line-height: 1.3;
  color: var(--nfs-white);
}

.page-contact .panel-title::before {
  content: "";
  display: inline-block;
  width: 26px;
  height: 1px;
  margin-right: 12px;
  vertical-align: middle;
  background: var(--nfs-cyan);
}

.page-contact .panel-text {
  margin: 14px 0 0;
  font-size: 15.5px;
  line-height: 1.8;
  color: var(--nfs-mist);
}

.page-contact .panel-list {
  list-style: none;
  margin: 20px 0 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--contact-line);
  border: 1px solid var(--contact-line);
}

.page-contact .panel-list li {
  padding: 12px 16px;
  font-size: 14.5px;
  line-height: 1.65;
  color: var(--nfs-white);
  background: var(--contact-panel);
}

/* ---------- 回复节奏 ---------- */
.page-contact .rhythm-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  margin-top: 34px;
  background: var(--contact-line);
  border: 1px solid var(--contact-line);
}

.page-contact .rhythm-card {
  padding: 24px 20px 26px;
  background: var(--nfs-indigo);
  min-width: 0;
}

.page-contact .rhythm-card--mail {
  background: var(--contact-panel);
}

.page-contact .rhythm-tag {
  display: inline-block;
  margin: 0;
}

.page-contact .rhythm-value {
  margin: 16px 0 0;
  font-size: clamp(20px, 4vw, 26px);
  font-weight: 700;
  letter-spacing: .02em;
  color: var(--nfs-white);
}

.page-contact .rhythm-card--mail .rhythm-value {
  color: var(--nfs-amber);
}

.page-contact .rhythm-text {
  margin: 12px 0 0;
  font-size: 15px;
  line-height: 1.78;
  color: var(--nfs-mist);
}

/* ---------- 备案与站点信息 ---------- */
.page-contact .contact-siteinfo {
  padding: 0 0 56px;
}

.page-contact .siteinfo-box {
  border: 1px solid var(--contact-line);
  border-top: 1px solid var(--nfs-amber);
  background: var(--contact-panel-deep);
  padding: 22px 18px 24px;
}

.page-contact .siteinfo-title {
  margin: 0 0 18px;
  font-size: 13px;
  letter-spacing: .14em;
  color: var(--nfs-mist);
}

.page-contact .siteinfo-list {
  margin: 0;
  display: grid;
  gap: 10px;
}

.page-contact .siteinfo-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--contact-line);
}

.page-contact .siteinfo-row:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.page-contact .siteinfo-row .contact-label {
  font-size: 12.5px;
  letter-spacing: .08em;
  color: var(--nfs-mist);
}

.page-contact .siteinfo-row .contact-value {
  font-size: 14px;
  color: var(--nfs-white);
  word-break: break-word;
}

.page-contact .siteinfo-note {
  margin: 20px 0 0;
  padding-top: 16px;
  border-top: 1px solid var(--contact-line);
  font-size: 13px;
  line-height: 1.75;
  color: var(--nfs-mist);
}

.page-contact .siteinfo-note a {
  color: var(--nfs-cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(53, 224, 200, .4);
}

.page-contact .siteinfo-note a:hover {
  color: var(--nfs-amber-soft);
  border-bottom-color: var(--nfs-amber-soft);
}

/* 右下留黑 + 刻度装饰 */
.page-contact .tail-ruler {
  display: flex;
  justify-content: flex-end;
  align-items: flex-end;
  gap: 6px;
  margin-top: 40px;
  padding-top: 40px;
  border-top: 1px solid var(--contact-line);
  min-height: 64px;
}

.page-contact .tail-ruler span {
  display: block;
  width: 1px;
  background: var(--contact-line-strong);
}

.page-contact .tail-ruler span:nth-child(odd) {
  height: 10px;
}

.page-contact .tail-ruler span:nth-child(even) {
  height: 22px;
}

.page-contact .tail-ruler span:last-child {
  height: 34px;
  width: 2px;
  background: var(--nfs-amber);
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-contact .contact-hero-inner {
    padding-bottom: 64px;
  }

  .page-contact .hero-facts {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 20px;
    border-top: 1px solid var(--contact-line-strong);
    padding-top: 20px;
  }

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

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

  .page-contact .siteinfo-row {
    grid-template-columns: 140px minmax(0, 1fr);
    gap: 16px;
    align-items: baseline;
  }
}

@media (min-width: 900px) {
  .page-contact .channel-grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: 40px;
    margin-top: 48px;
  }

  .page-contact .prep-layout {
    grid-template-columns: minmax(0, 4fr) minmax(0, 7fr);
    gap: 56px;
    align-items: start;
  }

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

  .page-contact .siteinfo-box {
    padding: 30px 32px 32px;
  }

  .page-contact .coop-tabs .tabpanel {
    padding-top: 32px;
  }
}

@media (min-width: 1200px) {
  .page-contact .contact-hero-title {
    max-width: 12em;
  }

  .page-contact .channel-col {
    padding-right: 8px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .coop-tabs .tab,
  .page-contact .siteinfo-note a {
    transition: none;
  }
}
<<<END>>>