.page-home {
  --home-radius: 20px;
  --home-hero-min-h: 560px;
  --home-transition: 0.22s ease;
  --home-ink: #0A1D3A;
}

/* ===== 首屏封面索引 ===== */
.page-home .home-hero {
  position: relative;
  isolation: isolate;
  background: linear-gradient(125deg, #060E1E 0%, var(--color-navy) 48%, #14325A 100%);
  color: var(--color-white);
  overflow: hidden;
}

.page-home .home-hero__bg {
  position: absolute;
  inset: 0;
  z-index: -2;
}

.page-home .home-hero__bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse at 78% 18%, rgba(212, 175, 55, 0.28) 0%, transparent 58%),
    linear-gradient(100deg, rgba(6, 14, 30, 0.72) 0%, rgba(10, 29, 58, 0.32) 48%, rgba(10, 29, 58, 0.12) 100%);
  z-index: 1;
}

.page-home .home-hero__img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.5;
}

.page-home .home-hero__inner {
  position: relative;
  z-index: 2;
  padding-top: 26px;
  padding-bottom: 64px;
}

.page-home .home-hero .breadcrumbs {
  color: var(--color-mist);
  font-size: 14px;
  opacity: 0.86;
}

.page-home .home-hero .breadcrumbs a {
  color: var(--color-mist);
  text-decoration: none;
}

.page-home .home-hero .breadcrumbs ol {
  margin: 0;
  padding: 0;
  list-style: none;
  display: flex;
  gap: 6px;
}

.page-home .home-hero .breadcrumbs li + li::before {
  content: '·';
  margin-right: 6px;
  color: var(--color-slate);
}

.page-home .home-hero__eyebrow {
  color: var(--color-amber);
  letter-spacing: 0.1em;
  margin-top: 28px;
  margin-bottom: 0;
}

.page-home .home-hero__title {
  font-family: var(--font-head);
  font-size: clamp(36px, 6.5vw, 64px);
  font-weight: 700;
  line-height: 1.06;
  margin: 12px 0 18px;
  max-width: 10em;
  letter-spacing: -0.02em;
}

.page-home .home-hero__lead {
  font-family: var(--font-body);
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.8;
  color: var(--color-mist);
  max-width: 680px;
  margin-bottom: 0;
}

.page-home .home-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 30px;
}

.page-home .home-hero__index {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 44px;
  padding-top: 22px;
  border-top: 1px solid rgba(224, 232, 237, 0.28);
  max-width: 640px;
}

.page-home .home-hero__index-item {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--color-white);
  text-decoration: none;
  font-size: 14px;
  font-weight: 600;
  padding: 9px 16px;
  border: 1px solid rgba(224, 232, 237, 0.32);
  border-radius: 999px;
  transition: border-color var(--home-transition), background var(--home-transition), transform var(--home-transition);
}

.page-home .home-hero__index-item:hover {
  border-color: var(--color-gold);
  background: rgba(212, 175, 55, 0.14);
  transform: translateY(-2px);
}

.page-home .home-hero__index-num {
  color: var(--color-gold);
  font: 700 13px/1 var(--font-head);
}

/* ===== 左侧栏：活动与记录 ===== */
.page-home .home-rail {
  background: var(--color-cream);
  padding: 72px 0;
}

.page-home .home-rail__head {
  max-width: 720px;
}

.page-home .home-rail__head .eyebrow {
  color: var(--color-gold);
  margin-bottom: 8px;
}

.page-home .home-rail__head h2 {
  font-family: var(--font-head);
  font-size: clamp(28px, 4vw, 40px);
  font-weight: 700;
  line-height: 1.15;
  color: var(--color-navy);
  margin: 0 0 12px;
}

.page-home .home-rail__lead {
  color: var(--color-slate);
  font-size: 16px;
  line-height: 1.75;
  margin: 0;
}

.page-home .home-rail__layout {
  display: grid;
  gap: 32px;
  margin-top: 36px;
}

@media (min-width: 960px) {
  .page-home .home-rail__layout {
    grid-template-columns: 0.9fr 1.1fr;
    align-items: stretch;
  }
}

/* 侧边栏视觉模拟 */
.page-home .rail-demo {
  background: linear-gradient(160deg, var(--color-graphite), #101D29);
  border-radius: var(--home-radius);
  border-left: 3px solid var(--color-gold);
  padding: 24px 22px 30px;
  box-shadow: var(--shadow-soft);
  min-height: 360px;
  display: flex;
  flex-direction: column;
}

.page-home .rail-demo__bar {
  display: flex;
  align-items: center;
  gap: 14px;
  padding-bottom: 18px;
  border-bottom: 1px solid rgba(224, 232, 237, 0.16);
  margin-bottom: 18px;
}

.page-home .rail-demo__icon {
  width: 64px;
  height: 64px;
  border-radius: 14px;
  object-fit: cover;
  background: rgba(212, 175, 55, 0.16);
  border: 1px solid rgba(212, 175, 55, 0.4);
}

.page-home .rail-demo__brand {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.page-home .rail-demo__brand strong {
  color: var(--color-white);
  font-family: var(--font-head);
  font-size: 18px;
}

.page-home .rail-demo__brand span {
  color: var(--color-slate);
  font-size: 13px;
}

/* radio tabs */
.page-home .rail-tabs {
  border: 0;
  margin: 0;
  padding: 0;
  min-width: 0;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.page-home .rail-tabs__legend {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}

.page-home .rail-tabs__input {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}

.page-home .rail-tabs__labels {
  display: flex;
  gap: 10px;
  margin-bottom: 16px;
}

.page-home .rail-tabs__tab {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 9px 18px;
  border: 1px solid rgba(224, 232, 237, 0.22);
  border-radius: 999px;
  color: var(--color-mist);
  background: rgba(255, 255, 255, 0.05);
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: color var(--home-transition), border-color var(--home-transition), background var(--home-transition);
}

.page-home .rail-tabs__tab:hover {
  border-color: var(--color-gold);
  color: var(--color-white);
}

.page-home .rail-tabs__input--act:checked ~ .rail-tabs__labels .rail-tabs__tab--act,
.page-home .rail-tabs__input--rec:checked ~ .rail-tabs__labels .rail-tabs__tab--rec {
  color: var(--color-white);
  border-color: var(--color-gold);
  background: rgba(212, 175, 55, 0.22);
}

.page-home .rail-tabs__input--act:focus-visible ~ .rail-tabs__labels .rail-tabs__tab--act,
.page-home .rail-tabs__input--rec:focus-visible ~ .rail-tabs__labels .rail-tabs__tab--rec {
  outline: 3px solid rgba(255, 191, 0, 0.5);
  outline-offset: 2px;
}

.page-home .rail-tabs__panel {
  display: block;
}

.page-home .rail-tabs__panel--rec {
  display: none;
}

.page-home .rail-tabs__input--rec:checked ~ .rail-tabs__panel--act {
  display: none;
}

.page-home .rail-tabs__input--rec:checked ~ .rail-tabs__panel--rec {
  display: block;
}

.page-home .rail-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-home .rail-list__item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 14px;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.04);
  transition: background var(--home-transition), transform var(--home-transition);
}

.page-home .rail-list__item:hover {
  background: rgba(212, 175, 55, 0.1);
  transform: translateX(3px);
}

.page-home .rail-list__dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  flex-shrink: 0;
}

.page-home .rail-list__dot--amber {
  background: var(--color-amber);
}

.page-home .rail-list__dot--gold {
  background: var(--color-gold);
}

.page-home .rail-list__dot--moss {
  background: var(--color-moss);
}

.page-home .rail-list__dot--terra {
  background: var(--color-terra);
}

.page-home .rail-list__name {
  color: var(--color-white);
  font-size: 15px;
  font-weight: 600;
  flex: 1;
}

.page-home .rail-list__meta {
  color: var(--color-slate);
  font-size: 13px;
  white-space: nowrap;
}

/* 右侧数据区 */
.page-home .home-rail__info {
  background: var(--color-white);
  border: 1px solid var(--color-mist);
  border-radius: var(--home-radius);
  padding: 30px 28px;
  display: flex;
  flex-direction: column;
  gap: 24px;
  box-shadow: var(--shadow-soft);
}

.page-home .rail-stats {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 18px;
}

@media (min-width: 520px) {
  .page-home .rail-stats {
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
  }
}

.page-home .rail-stats__item {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 16px 14px;
  border-radius: 14px;
  background: var(--color-cream);
  border-left: 3px solid var(--color-gold);
}

.page-home .rail-stats__num {
  font-family: var(--font-head);
  font-size: 32px;
  font-weight: 700;
  color: var(--color-navy);
  line-height: 1;
  letter-spacing: -0.02em;
}

.page-home .rail-stats__label {
  color: var(--color-slate);
  font-size: 13px;
  line-height: 1.45;
}

.page-home .home-rail__note {
  color: var(--color-slate);
  font-size: 15px;
  line-height: 1.75;
  margin: 0;
}

.page-home .home-rail__cta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: auto;
  padding-top: 8px;
}

/* ===== 最新活动公告 ===== */
.page-home .home-activities {
  background: var(--color-white);
  padding: 72px 0 76px;
}

.page-home .home-acts__head {
  max-width: 720px;
}

.page-home .home-acts__head .eyebrow {
  color: var(--color-gold);
  margin-bottom: 8px;
}

.page-home .home-acts__head h2 {
  font-family: var(--font-head);
  font-size: clamp(28px, 4vw, 40px);
  font-weight: 700;
  color: var(--color-navy);
  line-height: 1.15;
  margin: 0 0 12px;
}

.page-home .home-acts__lead {
  color: var(--color-slate);
  font-size: 16px;
  line-height: 1.7;
  margin: 0;
}

.page-home .home-acts__grid {
  display: grid;
  gap: 24px;
  margin-top: 36px;
}

@media (min-width: 640px) {
  .page-home .home-acts__grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1080px) {
  .page-home .home-acts__grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.page-home .activity-card {
  display: flex;
  flex-direction: column;
  overflow: hidden;
  border: 1px solid var(--color-mist);
  border-radius: var(--home-radius);
  transition: box-shadow var(--home-transition), transform var(--home-transition), border-color var(--home-transition);
}

.page-home .activity-card:hover {
  border-color: var(--color-gold);
  box-shadow: var(--shadow-lift);
  transform: translateY(-4px);
}

.page-home .activity-card__img {
  width: 100%;
  height: 160px;
  object-fit: cover;
  display: block;
  border-bottom: 1px solid var(--color-mist);
}

.page-home .activity-card__body {
  padding: 20px 22px 26px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  flex: 1;
}

.page-home .activity-card__meta {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 4px;
}

.page-home .activity-card__date {
  color: var(--color-slate);
  font-size: 13px;
}

.page-home .activity-card__title {
  font-family: var(--font-head);
  font-size: 20px;
  font-weight: 700;
  color: var(--color-navy);
  line-height: 1.3;
  margin: 0;
}

.page-home .activity-card__text {
  color: var(--color-slate);
  font-size: 14px;
  line-height: 1.7;
  margin: 0;
  flex: 1;
}

/* ===== 版本档案更新 ===== */
.page-home .home-version {
  background: linear-gradient(150deg, var(--color-navy) 0%, #081527 60%, #0B213F 100%);
  color: var(--color-white);
  padding: 72px 0 80px;
}

.page-home .home-version__head {
  max-width: 780px;
}

.page-home .home-version__head .eyebrow {
  color: var(--color-amber);
  margin-bottom: 8px;
}

.page-home .home-version__head h2 {
  font-family: var(--font-head);
  font-size: clamp(28px, 4vw, 40px);
  font-weight: 700;
  line-height: 1.15;
  margin: 0 0 12px;
}

.page-home .home-version__lead {
  color: var(--color-mist);
  font-size: 16px;
  line-height: 1.75;
  margin: 0;
}

.page-home .home-version__layout {
  display: grid;
  gap: 24px;
  margin-top: 36px;
}

@media (min-width: 900px) {
  .page-home .home-version__layout {
    grid-template-columns: 1.25fr 0.75fr;
    align-items: stretch;
  }
}

.page-home .version-figure {
  margin: 0;
  border-radius: var(--home-radius);
  overflow: hidden;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(224, 232, 237, 0.18);
}

.page-home .version-figure__img {
  width: 100%;
  height: auto;
  min-height: 160px;
  object-fit: cover;
  display: block;
}

.page-home .version-figure__cap {
  padding: 16px 20px;
  color: var(--color-slate);
  font-size: 14px;
  line-height: 1.6;
  border-top: 1px solid rgba(224, 232, 237, 0.1);
}

.page-home .version-fig__side {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(224, 232, 237, 0.18);
  border-radius: var(--home-radius);
  padding: 24px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.page-home .version-fig__title {
  font-family: var(--font-head);
  font-size: 20px;
  font-weight: 700;
  margin: 0 0 14px;
}

.page-home .version-fig__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-home .version-fig__list li {
  position: relative;
  padding-left: 18px;
  color: var(--color-mist);
  font-size: 14px;
  line-height: 1.55;
}

.page-home .version-fig__list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 8px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-gold);
}

/* 版本时间线 */
.page-home .version-timeline {
  list-style: none;
  margin: 36px 0 0;
  padding: 0;
  display: grid;
  gap: 16px;
  counter-reset: version-step;
}

@media (min-width: 680px) {
  .page-home .version-timeline {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1080px) {
  .page-home .version-timeline {
    grid-template-columns: repeat(4, 1fr);
  }
}

.page-home .version-timeline__item {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(224, 232, 237, 0.16);
  border-radius: 16px;
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  transition: transform var(--home-transition), border-color var(--home-transition);
}

.page-home .version-timeline__item:hover {
  transform: translateY(-3px);
  border-color: rgba(212, 175, 55, 0.6);
}

.page-home .version-timeline__ver {
  font-family: var(--font-head);
  font-size: 26px;
  font-weight: 700;
  color: var(--color-gold);
  letter-spacing: -0.01em;
}

.page-home .version-timeline__year {
  font-size: 14px;
  color: var(--color-amber);
  font-weight: 600;
}

.page-home .version-timeline__desc {
  color: var(--color-mist);
  font-size: 14px;
  line-height: 1.55;
}

/* 收藏比对 */
.page-home .version-fav-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 20px;
  margin-top: 36px;
  padding-top: 26px;
  border-top: 1px solid rgba(224, 232, 237, 0.16);
}

.page-home .version-fav {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.page-home .version-fav__input {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}

.page-home .version-fav__btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 20px;
  border: 1px solid var(--color-gold);
  border-radius: 999px;
  color: var(--color-gold);
  background: rgba(212, 175, 55, 0.1);
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: background var(--home-transition), color var(--home-transition), box-shadow var(--home-transition);
}

.page-home .version-fav__btn:hover {
  background: rgba(212, 175, 55, 0.22);
}

.page-home .version-fav__input:focus-visible + .version-fav__btn {
  outline: 3px solid rgba(255, 191, 0, 0.55);
  outline-offset: 2px;
}

.page-home .version-fav__label-checked {
  display: none;
}

.page-home .version-fav__status {
  display: none;
  color: var(--color-moss);
  font-size: 14px;
}

.page-home .version-fav__input:checked ~ .version-fav__btn {
  background: var(--color-gold);
  color: var(--color-navy);
  box-shadow: 0 6px 20px rgba(212, 175, 55, 0.3);
}

.page-home .version-fav__input:checked ~ .version-fav__btn .version-fav__label-checked {
  display: inline;
}

.page-home .version-fav__input:checked ~ .version-fav__btn .version-fav__label-default {
  display: none;
}

.page-home .version-fav__input:checked ~ .version-fav__status {
  display: inline;
}

.page-home .version-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-left: auto;
}

.page-home .version-actions .btn--ghost {
  border-color: rgba(224, 232, 237, 0.35);
  color: var(--color-white);
}

.page-home .version-actions .btn--ghost:hover {
  border-color: var(--color-gold);
  color: var(--color-gold);
}

/* ===== 响应式细节 ===== */
@media (min-width: 960px) {
  .page-home .home-hero__inner {
    padding-top: 36px;
    padding-bottom: 88px;
  }
}

@media (min-width: 1280px) {
  .page-home .home-hero__title {
    font-size: 60px;
  }
}

@media (max-width: 400px) {
  .page-home .home-hero__index-item {
    flex: 1 1 100%;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-home *,
  .page-home *::before,
  .page-home *::after {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }

  .page-home .home-hero__index-item:hover,
  .page-home .activity-card:hover,
  .page-home .version-timeline__item:hover {
    transform: none;
  }

  .page-home .rail-list__item:hover {
    transform: none;
  }
}