.page-home {
  --ph-gradient-start: #0B1A3B;
  --ph-gradient-end: #FF6B35;
  --ph-card-bg: rgba(255, 255, 255, 0.06);
  --ph-card-border: rgba(255, 255, 255, 0.08);
  --ph-primary: #FF6B35;
  --ph-secondary: #8B5CF6;
  --ph-text: #FFFFFF;
  --ph-muted: #A0AEC0;
  --ph-radius: 20px;
  --ph-font: -apple-system, BlinkMacSystemFont, "Segoe UI", "Helvetica Neue", Arial, "Noto Sans SC", sans-serif;
  display: flex;
  flex-direction: column;
  gap: 0;
  background: var(--ph-gradient-start);
  color: var(--ph-text);
  font-family: var(--ph-font);
  position: relative;
  overflow-x: hidden;
  width: 100%;
  max-width: 100vw;
}

/* ===== 首屏英雄区 ===== */
.ph-hero {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 100dvh;
  padding: 4rem 1.25rem 2rem;
  text-align: center;
  overflow: hidden;
}

.ph-hero-bg {
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 120% 60% at 50% 20%, rgba(139, 92, 246, 0.25), transparent 70%),
              radial-gradient(ellipse 80% 50% at 80% 80%, rgba(255, 107, 53, 0.15), transparent 60%);
  pointer-events: none;
  z-index: 0;
}

/* 实时赛事卡片 */
.ph-hero-card {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: 480px;
  background: var(--ph-card-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--ph-card-border);
  border-radius: var(--ph-radius);
  padding: 1.25rem 1.25rem 1rem;
  margin-bottom: 1.5rem;
  box-shadow: 0 20px 48px rgba(0, 0, 0, 0.4);
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.ph-hero-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 28px 56px rgba(0, 0, 0, 0.5);
}

.ph-card-header {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.75rem;
  margin-bottom: 0.75rem;
  color: var(--ph-muted);
}

.ph-card-badge {
  display: inline-block;
  padding: 0.1rem 0.5rem;
  border-radius: 4px;
  font-weight: 700;
  font-size: 0.65rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.ph-badge-live {
  background: var(--ph-primary);
  color: #fff;
  animation: ph-pulse-badge 1.6s ease-in-out infinite;
}

@keyframes ph-pulse-badge {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.6; }
}

.ph-card-competition {
  flex: 1;
  text-align: left;
  font-weight: 500;
}

.ph-card-time {
  font-weight: 600;
  font-feature-settings: "tnum";
}

.ph-card-teams {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  margin-bottom: 1rem;
}

.ph-team {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  flex: 1;
}

.ph-team-home {
  justify-content: flex-start;
}

.ph-team-away {
  justify-content: flex-end;
}

.ph-team-crest {
  font-size: 1.3rem;
  color: var(--ph-primary);
  opacity: 0.7;
}

.ph-team-name {
  font-weight: 700;
  font-size: 0.85rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 7rem;
}

.ph-team-score {
  font-size: 1.8rem;
  font-weight: 900;
  font-feature-settings: "tnum";
  line-height: 1;
  color: #fff;
}

.ph-card-vs {
  font-size: 1.2rem;
  font-weight: 300;
  color: var(--ph-muted);
  margin: 0 0.2rem;
}

.ph-card-stats {
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
  margin-bottom: 0.75rem;
}

.ph-stat-row {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.ph-stat-label {
  font-size: 0.7rem;
  font-weight: 600;
  color: var(--ph-muted);
  min-width: 2.8rem;
  text-align: right;
}

.ph-stat-bar-wrap {
  display: flex;
  flex: 1;
  gap: 2px;
  align-items: center;
}

.ph-stat-bar {
  flex: 1;
  height: 0.5rem;
  background: rgba(255, 255, 255, 0.08);
  border-radius: 4px;
  overflow: hidden;
  position: relative;
}

.ph-stat-fill {
  height: 100%;
  border-radius: 4px;
  font-size: 0.55rem;
  font-weight: 700;
  line-height: 0.5rem;
  padding-left: 0.3rem;
  color: #fff;
  display: flex;
  align-items: center;
  white-space: nowrap;
  font-feature-settings: "tnum";
}

.ph-stat-home {
  background: linear-gradient(90deg, var(--ph-primary), #ff8c5a);
}

.ph-stat-away {
  background: linear-gradient(90deg, var(--ph-secondary), #a78bfa);
}

.ph-card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 0.5rem;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
}

.ph-card-note {
  font-size: 0.65rem;
  color: var(--ph-muted);
  font-weight: 400;
}

.ph-card-action {
  background: none;
  border: none;
  color: var(--ph-primary);
  font-size: 0.75rem;
  font-weight: 600;
  cursor: pointer;
  padding: 0.2rem 0.6rem;
  border-radius: 4px;
  transition: background 0.2s;
  font-family: inherit;
}

.ph-card-action:hover {
  background: rgba(255, 107, 53, 0.12);
}

/* 首屏文案 */
.ph-hero-cta {
  position: relative;
  z-index: 1;
  margin-top: 0.5rem;
}

.ph-hero-slogan {
  font-size: 2.4rem;
  font-weight: 900;
  line-height: 1.1;
  margin: 0 0 0.3rem;
  background: linear-gradient(135deg, #fff 60%, var(--ph-primary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.ph-hero-sub {
  font-size: 0.9rem;
  color: var(--ph-muted);
  margin: 0 0 1rem;
  font-weight: 400;
}

.ph-hero-link {
  display: inline-block;
  color: var(--ph-primary);
  font-weight: 600;
  font-size: 0.85rem;
  text-decoration: none;
  padding: 0.4rem 1rem;
  border: 1px solid rgba(255, 107, 53, 0.3);
  border-radius: 999px;
  transition: background 0.25s, border-color 0.25s;
}

.ph-hero-link:hover {
  background: rgba(255, 107, 53, 0.1);
  border-color: var(--ph-primary);
}

.ph-scroll-hint {
  position: absolute;
  bottom: 1.5rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.2rem;
  color: var(--ph-muted);
  font-size: 0.7rem;
  animation: ph-bounce-down 2s ease-in-out infinite;
  z-index: 1;
}

.ph-scroll-arrow {
  font-size: 1rem;
  line-height: 1;
}

@keyframes ph-bounce-down {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50% { transform: translateX(-50%) translateY(6px); }
}

/* ===== 功能预览区 ===== */
.ph-features {
  position: relative;
  z-index: 1;
  padding: 3rem 1.25rem 2rem;
  max-width: 1200px;
  margin: 0 auto;
  width: 100%;
}

.ph-features-intro {
  margin-bottom: 2.5rem;
}

.ph-features-heading {
  font-size: 1.8rem;
  font-weight: 900;
  margin: 0 0 0.4rem;
  letter-spacing: -0.02em;
}

.ph-features-desc {
  font-size: 0.9rem;
  color: var(--ph-muted);
  margin: 0;
  font-weight: 400;
}

.ph-feature-item {
  margin-bottom: 3rem;
  position: relative;
  scroll-margin-top: 4rem;
}

.ph-feature-number {
  font-size: 4rem;
  font-weight: 900;
  line-height: 1;
  color: rgba(255, 107, 53, 0.12);
  margin-bottom: 0.2rem;
  font-feature-settings: "tnum";
  letter-spacing: -0.04em;
}

.ph-feature-content {
  display: flex;
  flex-direction: column;
  gap: 1.2rem;
  align-items: flex-start;
}

.ph-feature-reverse {
  flex-direction: column;
}

.ph-feature-text {
  flex: 1;
}

.ph-feature-title {
  font-size: 1.4rem;
  font-weight: 800;
  margin: 0 0 0.5rem;
  line-height: 1.2;
}

.ph-feature-body {
  font-size: 0.9rem;
  color: var(--ph-muted);
  line-height: 1.6;
  margin: 0 0 0.75rem;
  max-width: 54ch;
}

.ph-feature-link {
  display: inline-block;
  color: var(--ph-primary);
  font-weight: 600;
  font-size: 0.8rem;
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color 0.2s;
}

.ph-feature-link:hover {
  border-bottom-color: var(--ph-primary);
}

.ph-feature-media {
  flex-shrink: 0;
  width: 100%;
  max-width: 400px;
  border-radius: 12px;
  overflow: hidden;
  background: var(--ph-card-bg);
  border: 1px solid var(--ph-card-border);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3);
}

.ph-feature-img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  transition: transform 0.4s ease;
}

.ph-feature-img:hover {
  transform: scale(1.02);
}

.ph-img-portrait {
  max-height: 520px;
  object-position: top center;
}

.ph-img-landscape {
  aspect-ratio: 16 / 9;
}

.ph-img-square {
  aspect-ratio: 4 / 3;
}

.ph-feedback-chip {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  background: rgba(139, 92, 246, 0.12);
  border: 1px dashed rgba(139, 92, 246, 0.3);
  border-radius: 999px;
  padding: 0.6rem 1.2rem;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--ph-secondary);
  width: fit-content;
}

.ph-chip-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--ph-secondary);
  animation: ph-pulse-dot 1.6s ease-in-out infinite;
}

@keyframes ph-pulse-dot {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.3; }
}

.ph-chip-arrow {
  font-size: 1rem;
  font-weight: 700;
}

/* ===== 品牌主张区 ===== */
.ph-claim {
  position: relative;
  padding: 4rem 1.25rem;
  text-align: center;
  overflow: hidden;
}

.ph-claim-bg {
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 100% 60% at 50% 50%, rgba(255, 107, 53, 0.08), transparent 70%),
              radial-gradient(ellipse 80% 50% at 30% 60%, rgba(139, 92, 246, 0.06), transparent 50%);
  pointer-events: none;
}

.ph-claim-content {
  position: relative;
  z-index: 1;
  max-width: 640px;
  margin: 0 auto;
}

.ph-claim-marker {
  font-size: 2rem;
  color: var(--ph-primary);
  display: block;
  margin-bottom: 0.5rem;
}

.ph-claim-heading {
  font-size: 2.6rem;
  font-weight: 900;
  line-height: 1.1;
  margin: 0 0 0.75rem;
  letter-spacing: -0.03em;
  background: linear-gradient(135deg, #fff 50%, var(--ph-primary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.ph-claim-body {
  font-size: 1rem;
  color: var(--ph-muted);
  line-height: 1.7;
  margin: 0 0 2rem;
}

.ph-claim-stats {
  display: flex;
  justify-content: center;
  gap: 1.5rem;
  flex-wrap: wrap;
}

.ph-claim-stat {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.2rem;
  padding: 0.8rem 1.2rem;
  background: var(--ph-card-bg);
  border: 1px solid var(--ph-card-border);
  border-radius: 12px;
  min-width: 100px;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.ph-stat-num {
  font-size: 1.2rem;
  font-weight: 800;
  color: var(--ph-primary);
}

.ph-stat-desc {
  font-size: 0.7rem;
  color: var(--ph-muted);
  font-weight: 400;
}

/* ===== 平台动态预览 ===== */
.ph-insights-preview {
  padding: 2rem 1.25rem 3.5rem;
  max-width: 1200px;
  margin: 0 auto;
  width: 100%;
}

.ph-insights-heading {
  font-size: 1.6rem;
  font-weight: 900;
  margin: 0 0 0.3rem;
}

.ph-insights-desc {
  font-size: 0.85rem;
  color: var(--ph-muted);
  margin: 0 0 1.5rem;
}

.ph-insights-grid {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.ph-insight-card {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
  padding: 1rem 1.25rem;
  background: var(--ph-card-bg);
  border: 1px solid var(--ph-card-border);
  border-radius: 12px;
  text-decoration: none;
  color: inherit;
  transition: background 0.25s, transform 0.2s;
}

.ph-insight-card:hover {
  background: rgba(255, 255, 255, 0.08);
  transform: translateX(4px);
}

.ph-insight-number {
  font-size: 1rem;
  color: var(--ph-primary);
  font-weight: 700;
}

.ph-insight-title {
  font-size: 1rem;
  font-weight: 700;
  margin: 0;
}

.ph-insight-text {
  font-size: 0.8rem;
  color: var(--ph-muted);
  margin: 0;
  line-height: 1.5;
}

/* ===== 浮动反馈按钮 ===== */
.ph-feedback-float {
  position: fixed;
  bottom: 1.5rem;
  right: 1.25rem;
  z-index: 100;
}

.ph-feedback-btn {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  background: var(--ph-primary);
  border: none;
  border-radius: 999px;
  padding: 0.4rem 0.8rem 0.4rem 0.4rem;
  cursor: pointer;
  box-shadow: 0 6px 20px rgba(255, 107, 53, 0.35);
  transition: transform 0.2s, box-shadow 0.2s;
  font-family: inherit;
  color: #fff;
}

.ph-feedback-btn:hover {
  transform: scale(1.05);
  box-shadow: 0 8px 28px rgba(255, 107, 53, 0.45);
}

.ph-feedback-icon {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  object-fit: cover;
  display: block;
}

.ph-feedback-label {
  font-size: 0.75rem;
  font-weight: 700;
  white-space: nowrap;
}

/* ===== 章节跟随导航 ===== */
.ph-section-watcher {
  display: none;
}

/* ===== 桌面端 ≥768px ===== */
@media (min-width: 768px) {
  .ph-hero {
    padding: 5rem 2rem 3rem;
    min-height: 100dvh;
  }

  .ph-hero-card {
    padding: 1.5rem 1.5rem 1.25rem;
    max-width: 520px;
  }

  .ph-card-teams {
    gap: 1rem;
  }

  .ph-team-name {
    font-size: 1rem;
    max-width: 9rem;
  }

  .ph-team-score {
    font-size: 2.2rem;
  }

  .ph-hero-slogan {
    font-size: 3.6rem;
  }

  .ph-hero-sub {
    font-size: 1.05rem;
  }

  .ph-features {
    padding: 4rem 2rem 3rem;
  }

  .ph-features-heading {
    font-size: 2.4rem;
  }

  .ph-feature-number {
    font-size: 5.5rem;
  }

  .ph-feature-content {
    flex-direction: row;
    align-items: center;
    gap: 2rem;
  }

  .ph-feature-reverse {
    flex-direction: row-reverse;
  }

  .ph-feature-text {
    flex: 1;
  }

  .ph-feature-title {
    font-size: 1.6rem;
  }

  .ph-feature-body {
    font-size: 0.95rem;
  }

  .ph-feature-media {
    width: 340px;
    flex-shrink: 0;
  }

  .ph-claim {
    padding: 5rem 2rem;
  }

  .ph-claim-heading {
    font-size: 3.4rem;
  }

  .ph-claim-body {
    font-size: 1.1rem;
  }

  .ph-claim-stats {
    gap: 2rem;
  }

  .ph-insights-preview {
    padding: 3rem 2rem 5rem;
  }

  .ph-insights-heading {
    font-size: 2rem;
  }

  .ph-insights-grid {
    flex-direction: row;
    gap: 1rem;
  }

  .ph-insight-card {
    flex: 1;
  }

  .ph-feedback-float {
    bottom: 2rem;
    right: 2rem;
  }

  .ph-feedback-btn {
    padding: 0.5rem 1rem 0.5rem 0.5rem;
  }

  .ph-feedback-icon {
    width: 40px;
    height: 40px;
  }

  .ph-feedback-label {
    font-size: 0.85rem;
  }

  .ph-section-watcher {
    display: flex;
    position: fixed;
    left: 1rem;
    top: 50%;
    transform: translateY(-50%);
    flex-direction: column;
    gap: 0.35rem;
    z-index: 50;
    background: rgba(11, 26, 59, 0.7);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid rgba(255, 255, 255, 0.06);
    border-radius: 12px;
    padding: 0.5rem 0.4rem;
  }

  .ph-section-link {
    display: block;
    font-size: 0.65rem;
    font-weight: 500;
    color: var(--ph-muted);
    text-decoration: none;
    padding: 0.25rem 0.5rem;
    border-radius: 6px;
    transition: background 0.2s, color 0.2s;
    white-space: nowrap;
    font-family: var(--ph-font);
  }

  .ph-section-link:hover,
  .ph-section-link[data-active] {
    background: rgba(255, 107, 53, 0.12);
    color: var(--ph-primary);
  }
}

/* ===== 大桌面 ≥1024px ===== */
@media (min-width: 1024px) {
  .ph-hero-card {
    max-width: 560px;
    padding: 1.75rem 1.75rem 1.25rem;
  }

  .ph-hero-slogan {
    font-size: 4.2rem;
  }

  .ph-feature-media {
    width: 400px;
  }

  .ph-feature-title {
    font-size: 1.8rem;
  }

  .ph-claim-heading {
    font-size: 4rem;
  }

  .ph-section-watcher {
    left: 1.5rem;
    padding: 0.6rem 0.5rem;
  }

  .ph-section-link {
    font-size: 0.7rem;
    padding: 0.3rem 0.6rem;
  }
}

/* ===== 超大桌面 ≥1400px ===== */
@media (min-width: 1400px) {
  .ph-features {
    padding: 5rem 0 3rem;
  }

  .ph-insights-preview {
    padding: 3rem 0 5rem;
  }
}
</PAGE_CSS>