.page-home {
  --home-clip: 18px;
  --home-accent-soft: rgba(57, 255, 20, 0.12);
  position: relative;
  overflow-x: hidden;
  background: var(--bg-void);
  color: var(--text-hi);
  font-family: var(--font-body);
}

.page-home::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  background-image:
    linear-gradient(rgba(30, 58, 95, 0.4) 1px, transparent 1px),
    linear-gradient(90deg, rgba(30, 58, 95, 0.4) 1px, transparent 1px);
  background-size: 52px 52px;
}

.page-home .hero-framed,
.page-home .league-timeline,
.page-home .subscription-demo,
.page-home .bigscreen-demo,
.page-home .help-guide {
  position: relative;
  z-index: 1;
}

/* ===== 框景入口 ===== */
.page-home .hero-framed {
  position: relative;
  min-height: 100svh;
  display: flex;
  align-items: stretch;
  padding: var(--space-2);
}

.page-home .hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  overflow: hidden;
}

.page-home .hero-bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: brightness(0.42) saturate(0.85) contrast(1.1);
}

.page-home .hero-scrim {
  position: absolute;
  inset: 0;
  z-index: 1;
  background:
    linear-gradient(120deg, rgba(10, 26, 47, 0.94) 0%, rgba(10, 26, 47, 0.72) 46%, rgba(10, 26, 47, 0.38) 100%),
    radial-gradient(ellipse at 78% 22%, rgba(57, 255, 20, 0.1) 0%, transparent 52%);
}

.page-home .hero-frame {
  position: relative;
  z-index: 2;
  flex: 1;
  display: flex;
  flex-direction: column;
  min-width: 0;
  border: 1px solid var(--line);
  background: rgba(13, 31, 58, 0.58);
  backdrop-filter: blur(6px);
}

.page-home .hero-frame::after {
  content: "";
  position: absolute;
  right: 0;
  bottom: 0;
  width: 42px;
  height: 42px;
  background: var(--accent);
  clip-path: polygon(0 0, 100% 0, 0 100%);
  opacity: 0.72;
  pointer-events: none;
}

.page-home .frame-topbar {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-2) var(--space-3);
  border-bottom: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--accent);
  letter-spacing: 0.08em;
  white-space: nowrap;
  overflow-x: auto;
}

.page-home .rec-indicator {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--action);
}

.page-home .rec-indicator::before {
  content: "";
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: currentColor;
  animation: home-rec-pulse 2s ease-in-out infinite;
}

@keyframes home-rec-pulse {
  0%, 100% { opacity: 1; box-shadow: 0 0 0 0 rgba(255, 107, 53, 0.5); }
  50% { opacity: 0.55; box-shadow: 0 0 0 5px rgba(255, 107, 53, 0); }
}

.page-home .frame-tick {
  flex-shrink: 0;
}

.page-home .frame-bottomline {
  display: flex;
  justify-content: space-between;
  gap: var(--space-3);
  padding: var(--space-2) var(--space-3);
  border-top: 1px dashed var(--line);
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--text-lo);
  letter-spacing: 0.1em;
  white-space: nowrap;
  overflow-x: auto;
}

.page-home .hero-inner {
  display: flex;
  flex-direction: column;
  flex: 1;
  min-height: 0;
}

.page-home .hero-rail {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-3);
  border-bottom: 1px solid var(--line);
}

.page-home .rail-brand {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  text-decoration: none;
  color: var(--text-hi);
}

.page-home .rail-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  background: var(--accent);
  color: var(--bg-void);
  font-family: var(--font-mono);
  font-weight: 700;
  clip-path: polygon(0 0, calc(100% - 6px) 0, 100% 6px, 100% 100%, 6px 100%, 0 calc(100% - 6px));
}

.page-home .rail-name {
  font-family: var(--font-head);
  letter-spacing: 0.06em;
  white-space: nowrap;
}

.page-home .rail-nav {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  flex-wrap: wrap;
}

.page-home .rail-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  padding: var(--space-1) var(--space-2);
  border: 1px solid var(--line);
  background: transparent;
  color: var(--text-lo);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  text-decoration: none;
  white-space: nowrap;
  transition: color 0.2s, border-color 0.2s, background 0.2s;
}

.page-home .rail-link.is-active {
  color: var(--accent);
  border-color: var(--accent);
}

.page-home .rail-num {
  font-size: 0.7rem;
  opacity: 0.75;
}

.page-home .rail-version {
  display: none;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--text-lo);
  writing-mode: vertical-lr;
  letter-spacing: 0.16em;
}

.page-home .hero-content {
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: var(--space-4) var(--space-3);
  max-width: 1080px;
}

.page-home .breadcrumb {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  margin-bottom: var(--space-4);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--text-lo);
}

.page-home .breadcrumb-item:last-child {
  color: var(--accent);
}

.page-home .hero-kicker {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  letter-spacing: 0.14em;
  color: var(--text-lo);
  margin-bottom: var(--space-2);
}

.page-home .hero-title {
  font-family: var(--font-head);
  margin: 0 0 var(--space-3);
}

.page-home .hero-title-brand {
  display: block;
  font-size: clamp(1.1rem, 2.6vw, 1.5rem);
  letter-spacing: 0.1em;
  color: var(--text-lo);
  margin-bottom: var(--space-1);
}

.page-home .hero-title-slogan {
  display: block;
  font-size: clamp(2rem, 7vw, 4rem);
  line-height: 1.08;
  color: var(--text-hi);
}

.page-home .hero-title-slogan::after {
  content: "";
  display: inline-block;
  width: 0.42em;
  height: 0.42em;
  margin-left: 0.15em;
  background: var(--accent);
  clip-path: polygon(0 100%, 100% 0, 100% 100%);
  vertical-align: baseline;
}

.page-home .hero-lead {
  max-width: 44em;
  color: var(--text-lo);
  line-height: 1.75;
  font-size: 1.05rem;
  margin-bottom: var(--space-4);
}

.page-home .hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  margin-bottom: var(--space-4);
}

.page-home .btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 22px;
  font-family: var(--font-head);
  font-size: 0.95rem;
  text-decoration: none;
  letter-spacing: 0.04em;
  transition: transform 0.2s var(--ease), box-shadow 0.2s var(--ease), background 0.2s;
}

.page-home .btn-primary {
  background: var(--action);
  color: var(--bg-void);
  clip-path: polygon(0 0, calc(100% - 14px) 0, 100% 14px, 100% 100%, 0 100%);
}

.page-home .btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(255, 107, 53, 0.3);
}

.page-home .btn-ghost {
  border: 1px solid var(--line);
  color: var(--text-hi);
  background: rgba(13, 31, 58, 0.6);
  clip-path: polygon(0 0, calc(100% - 14px) 0, 100% 14px, 100% 100%, 0 100%);
}

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

.page-home .hero-stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-2);
  margin: 0;
  padding-top: var(--space-3);
  border-top: 1px dashed var(--line);
}

.page-home .hero-stat {
  padding: var(--space-2) var(--space-3);
  background: rgba(13, 31, 58, 0.62);
  border-left: 2px solid var(--accent);
}

.page-home .stat-label {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  color: var(--text-lo);
  text-transform: uppercase;
}

.page-home .stat-num {
  font-family: var(--font-mono);
  font-size: clamp(1.5rem, 4vw, 2.1rem);
  font-weight: 700;
  color: var(--accent);
  line-height: 1.2;
}

.page-home .scroll-hint {
  position: absolute;
  right: var(--space-3);
  bottom: var(--space-3);
  z-index: 3;
  display: flex;
  align-items: center;
  gap: var(--space-2);
  color: var(--text-lo);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  writing-mode: vertical-rl;
}

.page-home .scroll-hint-line {
  width: 1px;
  height: 46px;
  background: linear-gradient(180deg, var(--accent) 0%, rgba(57, 255, 20, 0) 100%);
}

/* ===== 联赛导航时间线 ===== */
.page-home .league-timeline {
  padding: var(--space-5) 0 var(--space-4);
  background:
    linear-gradient(90deg, rgba(57, 255, 20, 0.05) 0%, transparent 30%, transparent 100%),
    var(--bg-void);
}

.page-home .section-head {
  margin-bottom: var(--space-4);
}

.page-home .index-label {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-mono);
  font-size: 0.82rem;
  letter-spacing: 0.12em;
  color: var(--accent);
  padding: 4px 12px;
  border: 1px solid var(--line);
  background: rgba(57, 255, 20, 0.07);
  clip-path: polygon(0 0, calc(100% - 10px) 0, 100% 10px, 100% 100%, 0 100%);
}

.page-home .section-head h2,
.page-home .bigscreen-head h2,
.page-home .subscription-demo h2,
.page-home .help-guide h2 {
  font-family: var(--font-head);
  font-size: clamp(1.5rem, 4vw, 2.4rem);
  line-height: 1.25;
  margin: var(--space-3) 0 var(--space-2);
  color: var(--text-hi);
}

.page-home .section-desc,
.page-home .desc-lead {
  color: var(--text-lo);
  line-height: 1.7;
  max-width: 46em;
}

.page-home .timeline-filters {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-bottom: var(--space-4);
}

.page-home .filter-chip {
  display: inline-flex;
  align-items: center;
  padding: 7px 18px;
  border: 1px solid var(--line);
  background: var(--bg-card);
  color: var(--text-lo);
  font-family: var(--font-mono);
  font-size: 0.85rem;
  text-decoration: none;
  clip-path: polygon(0 0, calc(100% - 10px) 0, 100% 10px, 100% 100%, 0 100%);
  transition: color 0.2s, border-color 0.2s, background 0.2s;
}

.page-home .filter-chip.is-active {
  color: var(--bg-void);
  background: var(--accent);
  border-color: var(--accent);
}

.page-home .filter-chip:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.page-home .filter-chip.is-active:hover {
  color: var(--bg-void);
}

.page-home .timeline-group {
  margin-bottom: var(--space-5);
  scroll-margin-top: 100px;
}

.page-home .timeline-group-header {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-2);
  padding-bottom: var(--space-2);
  border-bottom: 1px dashed var(--line);
  margin-bottom: var(--space-3);
}

.page-home .group-index {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--accent);
  letter-spacing: 0.1em;
}

.page-home .timeline-group-header h3 {
  font-family: var(--font-head);
  font-size: 1.1rem;
  margin: 0;
  color: var(--text-hi);
}

.page-home .group-tag {
  margin-left: auto;
  font-size: 0.78rem;
  color: var(--text-lo);
  padding: 3px 10px;
  border: 1px solid var(--line);
}

.page-home .timeline-track {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-3);
}

.page-home .league-card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  padding: var(--space-4);
  background: var(--bg-card);
  border: 1px solid var(--line);
  clip-path: polygon(0 0, calc(100% - 20px) 0, 100% 20px, 100% 100%, 0 100%);
  transition: transform 0.25s var(--ease), border-color 0.25s;
}

.page-home .league-card:hover {
  transform: translateY(-4px);
  border-color: var(--accent);
  background: var(--bg-hover);
}

.page-home .league-card-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.page-home .league-code {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--accent);
  letter-spacing: 0.1em;
  padding: 4px 10px;
  border: 1px solid rgba(57, 255, 20, 0.4);
}

.page-home .fav-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  border: 1px solid var(--line);
  background: transparent;
  color: var(--text-lo);
  cursor: pointer;
  transition: color 0.2s, border-color 0.2s, transform 0.2s;
}

.page-home .fav-btn[aria-pressed="true"] {
  color: var(--accent);
  border-color: var(--accent);
}

.page-home .fav-btn:hover {
  transform: scale(1.06);
}

.page-home .league-card h4 {
  font-family: var(--font-head);
  font-size: 1.05rem;
  margin: 0;
  color: var(--text-hi);
}

.page-home .league-card p {
  font-size: 0.95rem;
  line-height: 1.65;
  color: var(--text-lo);
  margin: 0;
  flex: 1;
}

.page-home .league-card-foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-2);
  padding-top: var(--space-2);
  border-top: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 0.78rem;
}

.page-home .foot-meta {
  color: var(--text-lo);
}

.page-home .foot-link {
  color: var(--accent);
  text-decoration: none;
}

.page-home .foot-link:hover {
  text-decoration: underline;
}

.page-home .timeline-more {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: var(--space-2);
  margin-top: var(--space-4);
  padding-top: var(--space-4);
  border-top: 1px dashed var(--line);
}

.page-home .timeline-note {
  color: var(--text-lo);
  font-size: 0.85rem;
  margin: 0;
}

/* ===== 订阅设置演示 ===== */
.page-home .subscription-demo {
  padding: var(--space-5) 0;
  background:
    linear-gradient(135deg, rgba(57, 255, 20, 0.06) 0%, transparent 45%),
    var(--bg-card);
}

.page-home .subscribe-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-4);
}

.page-home .feature-list {
  list-style: none;
  margin: var(--space-4) 0;
  padding: 0;
  display: grid;
  gap: var(--space-3);
}

.page-home .feature-item {
  display: flex;
  gap: var(--space-3);
  padding: var(--space-3);
  background: var(--bg-void);
  border-left: 2px solid var(--accent);
}

.page-home .feature-index {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--accent);
  flex-shrink: 0;
}

.page-home .feature-copy strong {
  color: var(--text-hi);
  font-weight: 600;
}

.page-home .feature-copy p {
  color: var(--text-lo);
  font-size: 0.92rem;
  line-height: 1.65;
  margin: 4px 0 0;
}

.page-home .subscription-toggles {
  display: grid;
  gap: var(--space-2);
  margin-bottom: var(--space-3);
}

.page-home .toggle-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  padding: var(--space-3);
  border: 1px solid var(--line);
  background: var(--bg-hover);
}

.page-home .toggle-row-text {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.page-home .toggle-row-title {
  color: var(--text-hi);
  font-weight: 600;
}

.page-home .toggle-row-sub {
  font-size: 0.78rem;
  color: var(--text-lo);
}

.page-home .toggle-switch {
  position: relative;
  display: inline-flex;
  flex-shrink: 0;
  width: 54px;
  height: 30px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: var(--bg-void);
  cursor: pointer;
  transition: background 0.25s, border-color 0.25s;
}

.page-home .toggle-switch[aria-checked="true"] {
  background: var(--accent);
  border-color: var(--accent);
}

.page-home .toggle-knob {
  position: absolute;
  top: 3px;
  left: 3px;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--text-hi);
  transition: transform 0.25s var(--ease);
}

.page-home .toggle-switch[aria-checked="true"] .toggle-knob {
  transform: translateX(24px);
}

.page-home .text-link {
  display: inline-block;
  color: var(--accent);
  font-size: 0.9rem;
  text-decoration: none;
  margin-top: var(--space-1);
}

.page-home .text-link:hover {
  text-decoration: underline;
}

.page-home .subscribe-visual {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.page-home .chart-frame {
  padding: var(--space-2);
  border: 1px solid var(--line);
  background: var(--bg-void);
  clip-path: polygon(0 0, calc(100% - 24px) 0, 100% 24px, 100% 100%, 0 100%);
}

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

.page-home .chart-caption {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-2);
  padding: var(--space-2);
  border-left: 2px solid var(--accent);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--text-lo);
}

.page-home .chart-dot {
  width: 8px;
  height: 8px;
  background: var(--accent);
  box-shadow: 0 0 12px rgba(57, 255, 20, 0.7);
}

.page-home .chart-data-code {
  margin-left: auto;
  color: var(--accent);
}

/* ===== 大屏播放体验 ===== */
.page-home .bigscreen-demo {
  padding: var(--space-5) 0;
  background: var(--bg-void);
}

.page-home .bigscreen-head {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: var(--space-2);
  margin-bottom: var(--space-4);
}

.page-home .bigscreen-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  align-self: flex-start;
  padding: var(--space-2) var(--space-3);
  background: var(--bg-card);
  border: 1px solid var(--accent);
  clip-path: polygon(0 0, calc(100% - 14px) 0, 100% 14px, 100% 100%, 0 100%);
}

.page-home .badge-num {
  font-family: var(--font-mono);
  font-weight: 700;
  color: var(--accent);
  font-size: 1.4rem;
}

.page-home .badge-label {
  font-size: 0.82rem;
  color: var(--text-lo);
}

.page-home .bigscreen-stage {
  position: relative;
  border: 1px solid var(--line);
  background: #060d1b;
  clip-path: polygon(0 0, calc(100% - 28px) 0, 100% 28px, 100% 100%, 0 100%);
}

.page-home .bigscreen-screen {
  position: relative;
}

.page-home .bigscreen-screen img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  filter: brightness(0.82) saturate(0.9);
}

.page-home .screen-overlay {
  position: absolute;
  left: var(--space-3);
  bottom: var(--space-3);
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: var(--space-2);
  background: rgba(10, 26, 47, 0.72);
  border-left: 2px solid var(--accent);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--text-hi);
  letter-spacing: 0.08em;
}

.page-home .overlay-code {
  color: var(--accent);
}

.page-home .bigscreen-features {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-3);
  margin-top: var(--space-4);
}

.page-home .big-feat {
  padding: var(--space-3);
  border: 1px solid var(--line);
  background: rgba(13, 31, 58, 0.6);
  transition: border-color 0.2s, background 0.2s;
}

.page-home .big-feat:hover {
  border-color: var(--accent);
  background: var(--bg-hover);
}

.page-home .big-feat-num {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--accent);
  margin-bottom: var(--space-1);
}

.page-home .big-feat h3 {
  margin: 0 0 6px;
  font-family: var(--font-head);
  font-size: 1.05rem;
  color: var(--text-hi);
}

.page-home .big-feat p {
  color: var(--text-lo);
  font-size: 0.92rem;
  line-height: 1.65;
  margin: 0;
}

.page-home .bigscreen-more {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-2);
  margin-top: var(--space-4);
  padding-top: var(--space-3);
  border-top: 1px dashed var(--line);
}

.page-home .bigscreen-note {
  max-width: 32em;
  color: var(--text-lo);
  font-size: 0.85rem;
  margin: 0;
}

/* ===== 帮助中心导引 ===== */
.page-home .help-guide {
  padding: var(--space-5) 0;
  background:
    linear-gradient(90deg, rgba(57, 255, 20, 0.05) 0%, transparent 60%),
    var(--bg-card);
}

.page-home .help-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-4);
}

.page-home .help-cards {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-2);
  margin: var(--space-4) 0;
}

.page-home .help-card {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: var(--space-3);
  background: var(--bg-void);
  border: 1px solid var(--line);
  text-decoration: none;
  clip-path: polygon(0 0, calc(100% - 16px) 0, 100% 16px, 100% 100%, 0 100%);
  transition: border-color 0.2s, transform 0.2s;
}

.page-home .help-card:hover {
  border-color: var(--accent);
  transform: translateY(-3px);
}

.page-home .help-card-title {
  font-family: var(--font-head);
  color: var(--text-hi);
  font-size: 1.02rem;
}

.page-home .help-card-desc {
  color: var(--text-lo);
  font-size: 0.88rem;
}

.page-home .help-card-link {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--accent);
}

.page-home .help-contact {
  display: grid;
  gap: var(--space-2);
  margin-bottom: var(--space-2);
}

.page-home .contact-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-3);
  border: 1px solid var(--line);
  background: var(--bg-void);
}

.page-home .contact-label {
  font-size: 0.85rem;
  color: var(--text-lo);
}

.page-home .contact-value {
  font-family: var(--font-mono);
  color: var(--text-hi);
}

.page-home .trust-note {
  color: var(--text-lo);
  font-size: 0.88rem;
  line-height: 1.7;
  padding-left: var(--space-3);
  border-left: 2px solid var(--accent);
  margin: var(--space-3) 0 0;
}

.page-home .help-visual {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.page-home .help-visual-frame {
  padding: var(--space-2);
  border: 1px solid var(--line);
  background: var(--bg-void);
  transform: rotate(0.5deg);
}

.page-home .help-visual-frame img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  filter: brightness(0.9);
}

.page-home .help-visual-caption {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--text-lo);
}

.page-home .visual-caption-tag {
  color: var(--bg-void);
  background: var(--accent);
  padding: 3px 8px;
  letter-spacing: 0.1em;
}

/* ===== 桌面端适配 ===== */
@media (min-width: 640px) {
  .page-home .timeline-track {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-home .hero-stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-home .bigscreen-features {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-home .help-cards {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

@media (min-width: 900px) {
  .page-home .hero-framed {
    padding: var(--space-3);
  }

  .page-home .hero-inner {
    flex-direction: row;
  }

  .page-home .hero-rail {
    width: 190px;
    flex-direction: column;
    align-items: flex-start;
    justify-content: space-between;
    padding: var(--space-4) var(--space-3);
    border-right: 1px solid var(--line);
    border-bottom: none;
  }

  .page-home .rail-nav {
    flex-direction: column;
    align-items: stretch;
    gap: var(--space-2);
  }

  .page-home .rail-link {
    width: 100%;
  }

  .page-home .rail-version {
    display: inline-block;
  }

  .page-home .hero-content {
    padding: var(--space-5);
  }

  .page-home .subscribe-layout {
    grid-template-columns: 1.1fr 0.9fr;
    gap: var(--space-5);
  }

  .page-home .bigscreen-head {
    flex-direction: row;
    align-items: flex-start;
  }

  .page-home .bigscreen-badge {
    margin-top: var(--space-2);
  }

  .page-home .bigscreen-screen img {
    aspect-ratio: 16 / 9;
  }

  .page-home .help-layout {
    grid-template-columns: 1.2fr 0.8fr;
    gap: var(--space-5);
  }

  .page-home .help-visual-frame {
    margin-top: var(--space-3);
  }

  .page-home .frame-topbar,
  .page-home .frame-bottomline {
    padding: var(--space-2) var(--space-4);
  }
}

@media (min-width: 1120px) {
  .page-home .league-timeline .timeline-track {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-home .hero-frame {
    border: 1px solid var(--line);
    box-shadow: 0 0 0 1px rgba(57, 255, 20, 0.08), 0 28px 70px rgba(2, 8, 18, 0.5);
  }

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

  .page-home .subscription-demo,
  .page-home .help-guide {
    padding: var(--space-5) 0;
  }
}