/* ============================================================
   首页样式
   ============================================================ */

/* ---------- Hero 区 ---------- */
.hero {
  position: relative;
  padding: 56px 0 40px;
  overflow: hidden;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 40px;
  align-items: center;
}

.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  background: var(--primary-soft);
  border: 1px solid rgba(255, 107, 53, 0.3);
  border-radius: 100px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--primary);
  margin-bottom: 20px;
}

.hero-tag .dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--primary);
  animation: pulse 1.8s infinite;
}

.hero-title {
  font-family: var(--font-display);
  font-size: clamp(48px, 7vw, 88px);
  line-height: 0.92;
  letter-spacing: 1px;
  margin-bottom: 18px;
}

.hero-title .accent {
  background: var(--grad-energy);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-sub {
  font-size: 17px;
  color: var(--text-muted);
  max-width: 480px;
  margin-bottom: 28px;
}

.hero-cta {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

/* 今日状态卡 */
.today-card {
  position: relative;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px;
  overflow: hidden;
}

.today-card::before {
  content: '';
  position: absolute;
  top: -40px;
  right: -40px;
  width: 140px;
  height: 140px;
  background: var(--grad-energy);
  opacity: 0.12;
  border-radius: 50%;
  filter: blur(20px);
}

.today-label {
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--text-dim);
  margin-bottom: 8px;
}

.today-headline {
  font-family: var(--font-display);
  font-size: 30px;
  letter-spacing: 1px;
  margin-bottom: 20px;
  line-height: 1;
}

.today-headline.done {
  color: var(--success);
}

.today-headline.idle .accent {
  color: var(--primary);
}

.today-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
  margin-bottom: 22px;
}

.today-stat {
  text-align: center;
  padding: 14px 8px;
  background: var(--bg-alt);
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
}

.today-stat-num {
  font-family: var(--font-display);
  font-size: 32px;
  line-height: 1;
  color: var(--text);
  margin-bottom: 4px;
}

.today-stat-num.primary { color: var(--primary); }
.today-stat-num.accent { color: var(--accent); }

.today-stat-label {
  font-size: 11px;
  color: var(--text-dim);
  letter-spacing: 0.5px;
  text-transform: uppercase;
}

/* ---------- 区块标题 ---------- */
.section-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 24px;
  gap: 16px;
}

.section-title {
  display: flex;
  align-items: center;
  gap: 12px;
  font-family: var(--font-display);
  font-size: 30px;
  letter-spacing: 1.5px;
}

.section-title .bar {
  width: 5px;
  height: 26px;
  background: var(--grad-energy);
  border-radius: 3px;
}

.section-title small {
  font-family: var(--font-body);
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0;
  color: var(--text-dim);
  text-transform: none;
}

.section-action {
  font-size: 13px;
  color: var(--text-muted);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: color 0.2s;
}

.section-action:hover {
  color: var(--primary);
}

/* ---------- 继续观看横滑 ---------- */
.continue-strip {
  display: flex;
  gap: 16px;
  overflow-x: auto;
  padding: 4px 0 12px;
  scroll-snap-type: x mandatory;
  scrollbar-width: thin;
}

.continue-strip::-webkit-scrollbar {
  height: 6px;
}

.continue-card {
  flex: 0 0 300px;
  scroll-snap-align: start;
}

/* ---------- 视频网格 ---------- */
.video-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 22px;
}

.video-card {
  position: relative;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  cursor: pointer;
  transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

.video-card:hover {
  transform: translateY(-4px);
  border-color: var(--primary);
  box-shadow: var(--shadow-md);
}

.video-thumb {
  position: relative;
  aspect-ratio: 16 / 9;
  background: var(--bg-alt);
  overflow: hidden;
}

.video-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}

.video-card:hover .video-thumb img {
  transform: scale(1.06);
}

.video-thumb::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 50%, rgba(0, 0, 0, 0.85) 100%);
  pointer-events: none;
}

.video-play {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%) scale(0.8);
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--grad-energy);
  color: #0a0a0a;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  opacity: 0;
  transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  z-index: 2;
  box-shadow: var(--shadow-glow);
}

.video-card:hover .video-play {
  opacity: 1;
  transform: translate(-50%, -50%) scale(1);
}

.video-duration {
  position: absolute;
  bottom: 8px;
  right: 8px;
  z-index: 2;
  padding: 3px 8px;
  background: rgba(0, 0, 0, 0.78);
  border-radius: 4px;
  font-size: 11px;
  font-weight: 600;
  font-variant-numeric: tabular-nums;
  color: var(--text);
}

.video-done-badge {
  position: absolute;
  top: 10px;
  right: 10px;
  z-index: 2;
  width: 30px;
  height: 30px;
  border-radius: 50%;
  background: var(--success);
  color: #0a0a0a;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  box-shadow: 0 4px 12px rgba(6, 214, 160, 0.4);
}

.video-progress-track {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: rgba(0, 0, 0, 0.4);
  z-index: 2;
}

.video-progress-fill {
  height: 100%;
  background: var(--grad-energy);
  animation: barGrow 0.6s ease;
}

.video-info {
  padding: 14px 16px 16px;
}

.video-title {
  font-size: 15px;
  font-weight: 600;
  line-height: 1.35;
  margin-bottom: 6px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  min-height: 40px;
}

.video-meta {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 12px;
  color: var(--text-dim);
}

.video-meta i {
  font-size: 11px;
}

.video-meta .dot-sep {
  width: 3px;
  height: 3px;
  border-radius: 50%;
  background: var(--text-dim);
}

/* ---------- 视频网格骨架 ---------- */
.video-card.skeleton .video-thumb,
.video-card.skeleton .video-title-line,
.video-card.skeleton .video-meta-line {
  background: linear-gradient(90deg, var(--surface) 25%, var(--surface-2) 50%, var(--surface) 75%);
  background-size: 200% 100%;
  animation: shimmer 1.4s infinite;
}
.video-card.skeleton .video-title-line {
  height: 14px;
  margin: 6px 0;
  border-radius: 4px;
}
.video-card.skeleton .video-meta-line {
  height: 10px;
  width: 60%;
  border-radius: 4px;
}

/* ---------- 响应式 ---------- */
@media (max-width: 900px) {
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 28px;
  }
}

@media (max-width: 600px) {
  .hero {
    padding: 36px 0 24px;
  }
  .today-stats {
    gap: 8px;
  }
  .today-stat {
    padding: 10px 4px;
  }
  .today-stat-num {
    font-size: 26px;
  }
  .continue-card {
    flex: 0 0 260px;
  }
  .video-grid {
    grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
    gap: 14px;
  }
  .video-info {
    padding: 11px 12px 12px;
  }
  .video-title {
    font-size: 13px;
    min-height: 36px;
  }
}

@media (max-width: 380px) {
  .video-grid {
    grid-template-columns: 1fr 1fr;
    gap: 10px;
  }
}