.page-contact {
  --pc-line: rgba(201, 214, 226, 0.16);
  --pc-line-strong: rgba(201, 214, 226, 0.3);
  --pc-card: #12283F;
  background: var(--ink-900);
  color: var(--mist);
}

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  position: relative;
  overflow: hidden;
  padding: calc(var(--header-h) + 36px) 0 48px;
  background:
    radial-gradient(118% 88% at 88% 0%, rgba(217, 164, 65, 0.18), transparent 62%),
    linear-gradient(150deg, #071320 0%, #0A1A2B 44%, #12283F 100%);
  border-bottom: 1px solid var(--pc-line);
}

.page-contact .contact-hero::after {
  content: "";
  position: absolute;
  right: -10%;
  bottom: -46%;
  width: 54%;
  aspect-ratio: 1 / 1;
  background: linear-gradient(135deg, rgba(217, 164, 65, 0.22), rgba(18, 40, 63, 0) 62%);
  clip-path: polygon(46% 0, 100% 0, 100% 100%, 0 100%);
  pointer-events: none;
}

.page-contact .contact-hero .breadcrumbs {
  position: relative;
  z-index: 2;
  margin-bottom: 26px;
}

.page-contact .contact-hero__grid {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 28px;
}

.page-contact .contact-hero h1 {
  margin: 0 0 18px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(32px, 7vw, 56px);
  line-height: 1.1;
  letter-spacing: -0.02em;
  color: var(--snow);
  max-width: 15em;
}

.page-contact .contact-hero__text {
  margin: 0;
  max-width: 58ch;
  font-size: 16px;
  line-height: 1.78;
  color: var(--mist);
}

.page-contact .contact-hero__note {
  align-self: end;
  padding: 20px 20px 22px;
  border: 1px solid rgba(217, 164, 65, 0.3);
  border-radius: var(--radius);
  background: rgba(10, 26, 43, 0.58);
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
}

.page-contact .contact-hero__note-label {
  margin: 0 0 6px;
  font-family: var(--font-serif);
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--gold-soft);
}

.page-contact .contact-hero__note-time {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 32px;
  font-weight: 700;
  line-height: 1.1;
  color: var(--snow);
  letter-spacing: 0.01em;
}

.page-contact .contact-dash {
  color: var(--gold);
  padding: 0 0.14em;
}

.page-contact .contact-hero__note-desc {
  margin: 0 0 18px;
  font-size: 14px;
  line-height: 1.72;
  color: var(--mist);
}

.page-contact .contact-hero__note .btn {
  width: 100%;
}

/* ---------- 主体双栏 ---------- */
.page-contact .contact-main {
  padding: 36px 0 68px;
}

.page-contact .contact-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 30px;
}

/* ---------- 联系信息卡 ---------- */
.page-contact .contact-card {
  position: relative;
  overflow: hidden;
  padding: 22px 20px 22px 22px;
  border: 1px solid var(--pc-line-strong);
  border-radius: var(--radius);
  background:
    linear-gradient(165deg, rgba(217, 164, 65, 0.16), rgba(18, 40, 63, 0.94) 46%),
    var(--pc-card);
}

.page-contact .contact-card::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 3px;
  background: linear-gradient(180deg, var(--gold), rgba(217, 164, 65, 0));
}

.page-contact .contact-card__kicker {
  margin: 0 0 6px;
  font-family: var(--font-serif);
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--gold-soft);
}

.page-contact .contact-list {
  margin: 0;
  padding: 0;
}

.page-contact .contact-list__row {
  padding: 13px 0;
  border-bottom: 1px dashed var(--pc-line);
}

.page-contact .contact-list__row:last-child {
  border-bottom: 0;
  padding-bottom: 4px;
}

.page-contact .contact-list dt {
  margin-bottom: 5px;
  font-family: var(--font-serif);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--gold-soft);
}

.page-contact .contact-list dd {
  margin: 0;
  font-size: 15px;
  line-height: 1.55;
  color: var(--snow);
  overflow-wrap: anywhere;
}

.page-contact .contact-mono {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 15px;
  letter-spacing: 0.01em;
  color: var(--snow);
}

.page-contact .contact-card__note {
  margin: 16px 0 0;
  font-size: 13px;
  line-height: 1.7;
  color: rgba(201, 214, 226, 0.86);
}

.page-contact .contact-card__btn {
  width: 100%;
  margin-top: 16px;
}

/* ---------- 右侧内容流 ---------- */
.page-contact .flow-block {
  padding-bottom: 34px;
  margin-bottom: 34px;
  border-bottom: 1px solid var(--pc-line);
}

.page-contact .flow-block--last {
  padding-bottom: 0;
  margin-bottom: 0;
  border-bottom: 0;
}

.page-contact .flow-block h2 {
  margin: 0 0 12px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(22px, 4vw, 30px);
  line-height: 1.24;
  letter-spacing: -0.01em;
  color: var(--snow);
}

.page-contact .flow-lead {
  margin: 0 0 22px;
  max-width: 60ch;
  font-size: 15px;
  line-height: 1.78;
  color: var(--mist);
}

/* 通道列表 */
.page-contact .channel-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 18px;
}

.page-contact .channel-item {
  padding: 2px 0 2px 18px;
  border-left: 2px solid rgba(217, 164, 65, 0.4);
  transition: border-color 0.24s var(--ease);
}

.page-contact .channel-item:hover {
  border-left-color: var(--gold);
}

.page-contact .channel-item__tag {
  display: inline-block;
  margin-bottom: 8px;
  padding: 3px 9px;
  border-radius: 999px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--ink-900);
  background: var(--gold-soft);
}

.page-contact .channel-item:nth-child(2) .channel-item__tag {
  background: var(--teal);
  color: #04211e;
}

.page-contact .channel-item:nth-child(3) .channel-item__tag {
  background: var(--amber);
  color: #241200;
}

.page-contact .channel-item h3 {
  margin: 0 0 6px;
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 700;
  color: var(--snow);
}

.page-contact .channel-item p {
  margin: 0;
  max-width: 58ch;
  font-size: 15px;
  line-height: 1.74;
  color: var(--mist);
}

/* 步骤条 */
.page-contact .steps {
  list-style: none;
  margin: 0 0 24px;
  padding: 0;
}

.page-contact .step {
  position: relative;
  display: grid;
  grid-template-columns: 36px minmax(0, 1fr);
  gap: 14px;
  padding-bottom: 24px;
}

.page-contact .step:last-child {
  padding-bottom: 0;
}

.page-contact .step::before {
  content: "";
  position: absolute;
  left: 17px;
  top: 44px;
  bottom: 10px;
  width: 1px;
  background: linear-gradient(180deg, rgba(217, 164, 65, 0.55), rgba(217, 164, 65, 0.04));
}

.page-contact .step:last-child::before {
  display: none;
}

.page-contact .step__dot {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  flex: none;
  border: 1px solid rgba(217, 164, 65, 0.55);
  border-radius: 50%;
  background: rgba(217, 164, 65, 0.09);
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--gold-soft);
}

.page-contact .step__body {
  padding-top: 4px;
}

.page-contact .step__body h3 {
  margin: 0 0 6px;
  font-family: var(--font-display);
  font-size: 16px;
  font-weight: 700;
  color: var(--snow);
}

.page-contact .step__body p {
  margin: 0;
  max-width: 56ch;
  font-size: 15px;
  line-height: 1.74;
  color: var(--mist);
}

/* 图片 */
.page-contact .media {
  margin: 0;
}

.page-contact .media img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
  border: 1px solid var(--pc-line);
  border-radius: var(--radius);
}

.page-contact .media__caption {
  margin-top: 10px;
  font-family: var(--font-serif);
  font-size: 12px;
  letter-spacing: 0.08em;
  line-height: 1.6;
  color: rgba(201, 214, 226, 0.78);
}

/* 合作三栏 */
.page-contact .coop-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
}

.page-contact .coop-card {
  padding: 20px 18px;
  border: 1px solid var(--pc-line);
  border-radius: var(--radius);
  background: linear-gradient(180deg, rgba(18, 40, 63, 0.9), rgba(10, 26, 43, 0.55));
  transition: transform 0.24s var(--ease), border-color 0.24s var(--ease);
}

.page-contact .coop-card:hover,
.page-contact .coop-card:focus-within {
  transform: translateY(-4px);
  border-color: rgba(217, 164, 65, 0.55);
}

.page-contact .coop-card__icon {
  display: block;
  margin-bottom: 12px;
  fill: none;
  stroke: var(--gold);
  stroke-width: 1.5;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.page-contact .coop-card h3 {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-size: 16px;
  font-weight: 700;
  color: var(--snow);
}

.page-contact .coop-card p {
  margin: 0;
  font-size: 14px;
  line-height: 1.72;
  color: var(--mist);
}

.page-contact .coop-card__more {
  color: rgba(241, 206, 126, 0.82);
}

/* 回复节奏 */
.page-contact .timing-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 24px;
}

.page-contact .timing-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-contact .timing-list li {
  display: grid;
  grid-template-columns: 86px minmax(0, 1fr);
  gap: 14px;
  padding: 14px 0;
  border-top: 1px solid var(--pc-line);
}

.page-contact .timing-list li:first-child {
  border-top: 0;
  padding-top: 0;
}

.page-contact .timing-list time {
  padding-top: 3px;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 12px;
  letter-spacing: 0.02em;
  color: var(--gold-soft);
}

.page-contact .timing-list p {
  margin: 0;
  max-width: 52ch;
  font-size: 15px;
  line-height: 1.72;
  color: var(--mist);
}

/* 快捷入口 */
.page-contact .quick-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-contact .quick-list li {
  border-bottom: 1px solid var(--pc-line);
}

.page-contact .quick-list li:first-child {
  border-top: 1px solid var(--pc-line);
}

.page-contact .quick-list a {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 6px 18px;
  padding: 16px 4px;
  text-decoration: none;
  transition: padding-left 0.22s var(--ease), background-color 0.22s var(--ease);
}

.page-contact .quick-list a:hover {
  padding-left: 12px;
  background: rgba(217, 164, 65, 0.06);
}

.page-contact .quick-list__text {
  font-size: 15px;
  line-height: 1.7;
  color: var(--snow);
  max-width: 46ch;
}

.page-contact .quick-list__to {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--gold-soft);
  white-space: nowrap;
}

/* 备案与条款 */
.page-contact .legal-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px 26px;
  padding: 16px 18px;
  border: 1px solid var(--pc-line);
  border-radius: var(--radius);
  background: rgba(18, 40, 63, 0.5);
}

.page-contact .legal-row__icp {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.02em;
  color: var(--mist);
}

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

.page-contact .legal-links a {
  padding-bottom: 2px;
  font-size: 14px;
  color: var(--gold-soft);
  text-decoration: none;
  border-bottom: 1px solid rgba(241, 206, 126, 0.35);
}

.page-contact .legal-links a:hover {
  border-bottom-color: var(--gold-soft);
}

/* 焦点可见性 */
.page-contact a:focus-visible,
.page-contact .coop-card:focus-visible {
  outline: 2px solid var(--gold);
  outline-offset: 3px;
}

/* ---------- 断点 ---------- */
@media (min-width: 560px) {
  .page-contact .coop-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-contact .contact-hero {
    padding: calc(var(--header-h) + 52px) 0 64px;
  }

  .page-contact .contact-hero__grid {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.72fr);
    align-items: end;
    gap: 48px;
  }

  .page-contact .contact-main {
    padding: 56px 0 88px;
  }

  .page-contact .coop-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 16px;
  }

  .page-contact .timing-grid {
    grid-template-columns: minmax(0, 1.08fr) minmax(0, 0.92fr);
    align-items: start;
    gap: 32px;
  }
}

@media (min-width: 1024px) {
  .page-contact .contact-layout {
    grid-template-columns: 340px minmax(0, 1fr);
    gap: 56px;
    align-items: start;
  }

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

@media (min-width: 1440px) {
  .page-contact .contact-layout {
    grid-template-columns: 372px minmax(0, 1fr);
    gap: 68px;
  }
}

@media (hover: hover) {
  .page-contact .coop-card__more {
    max-height: 0;
    margin-top: 0;
    opacity: 0;
    overflow: hidden;
    transition: max-height 0.26s var(--ease), opacity 0.26s var(--ease), margin-top 0.26s var(--ease);
  }

  .page-contact .coop-card:hover .coop-card__more,
  .page-contact .coop-card:focus-within .coop-card__more {
    max-height: 140px;
    margin-top: 10px;
    opacity: 1;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .coop-card,
  .page-contact .channel-item,
  .page-contact .quick-list a {
    transition: none;
  }

  .page-contact .coop-card:hover,
  .page-contact .coop-card:focus-within {
    transform: none;
  }

  .page-contact .quick-list a:hover {
    padding-left: 4px;
  }
}
<<<END>>>