/* ═════════════════════════════════════════════════
   云剧 v3 — 红橙科技感 UI
   设计规范：轻量玻璃拟态 + 微光效 + 微动效
   ═════════════════════════════════════════════════ */

/* ===== Design Tokens ===== */
:root {
  --bg-primary: #0F0F23;
  --bg-card: rgba(255,255,255,0.03);
  --bg-card-hover: rgba(255,255,255,0.06);
  --c1: #FF3B1D;
  --c2: #FF7A00;
  --gradient: linear-gradient(135deg, var(--c1), var(--c2));
  --gradient-rev: linear-gradient(135deg, var(--c2), var(--c1));
  --glow-sm: 0 0 12px rgba(255,59,29,0.25);
  --glow-md: 0 0 24px rgba(255,59,29,0.35);
  --border-glass: 1px solid rgba(255,255,255,0.08);
  --border-glow: 1px solid transparent;
  --radius: 12px;
  --radius-btn: 8px;
  --transition-fast: 0.2s ease;
  --transition-smooth: 0.3s ease;
}

/* ===== 全局 Reset ===== */
body {
  background: var(--bg-primary);
  color: #E0E0EB;
}

/* ===== 1. 按钮体系 ===== */
.btn-primary, button.btn-primary,
.button-primary, [class*="btn-primary"] {
  background: var(--gradient) !important;
  color: #fff !important;
  border: none !important;
  border-radius: var(--radius-btn) !important;
  font-weight: 600 !important;
  cursor: pointer;
  transition: all var(--transition-fast);
}
.btn-primary:hover {
  box-shadow: var(--glow-sm);
  transform: translateY(-1px);
}
.btn-primary:active {
  transform: scale(0.96);
}

.btn-secondary, button.btn-secondary {
  background: transparent !important;
  border: 1px solid transparent !important;
  border-image: var(--gradient) 1 !important;
  border-radius: var(--radius-btn) !important;
  color: var(--c1) !important;
  font-weight: 500 !important;
  cursor: pointer;
  transition: all var(--transition-fast);
}
.btn-secondary:hover {
  box-shadow: 0 0 8px rgba(255,59,29,0.15);
  border-color: var(--c1) !important;
}

/* ===== 2. 卡片体系 ===== */
.glass, .glass-card, [class*="glass"] {
  background: var(--bg-card) !important;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: var(--border-glass) !important;
  border-radius: var(--radius) !important;
  transition: all var(--transition-smooth);
}
.glass:hover, .glass-card:hover {
  border-color: rgba(255,59,29,0.2) !important;
  box-shadow: 0 8px 32px rgba(0,0,0,0.3), 0 0 16px rgba(255,59,29,0.06);
  transform: translateY(-2px);
}

/* Card with gradient top accent */
.card-accent {
  border-top: 2px solid transparent !important;
  border-image: var(--gradient) 1 !important;
}

/* ===== 3. 文字体系 ===== */
.gradient-text {
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ===== 4. Hero 动态光效背景 ===== */
.hero-glow {
  position: relative;
  overflow: hidden;
}
.hero-glow::before,
.hero-glow::after {
  content: '';
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.15;
  z-index: 0;
  pointer-events: none;
}
.hero-glow::before {
  width: 400px; height: 400px;
  background: var(--c1);
  top: -100px; left: -100px;
  animation: heroFloat1 12s ease-in-out infinite;
}
.hero-glow::after {
  width: 350px; height: 350px;
  background: var(--c2);
  bottom: -80px; right: -80px;
  animation: heroFloat2 14s ease-in-out infinite;
}
@keyframes heroFloat1 {
  0%, 100% { transform: translate(0, 0) scale(1); }
  33% { transform: translate(60px, 40px) scale(1.1); }
  66% { transform: translate(-30px, -20px) scale(0.9); }
}
@keyframes heroFloat2 {
  0%, 100% { transform: translate(0, 0) scale(1); }
  33% { transform: translate(-50px, -30px) scale(1.15); }
  66% { transform: translate(40px, 20px) scale(0.95); }
}

/* ===== 5. CTA 呼吸动画 ===== */
.btn-cta {
  animation: breathe 2.5s ease-in-out infinite;
}
@keyframes breathe {
  0%, 100% { box-shadow: 0 0 8px rgba(255,59,29,0.3); }
  50% { box-shadow: 0 0 28px rgba(255,59,29,0.5), 0 0 50px rgba(255,59,29,0.15); }
}

/* ===== 6. 卡片光效扫过 ===== */
.card-shimmer {
  position: relative;
  overflow: hidden;
}
.card-shimmer::after {
  content: '';
  position: absolute;
  top: 0; left: -100%;
  width: 60%; height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.05), transparent);
  transform: skewX(-15deg);
  transition: left 0.6s ease;
  pointer-events: none;
}
.card-shimmer:hover::after {
  left: 120%;
}

/* ===== 7. AI生成页：上传区虚线渐变边框 ===== */
.upload-zone {
  border: 2px dashed rgba(255,59,29,0.3) !important;
  border-radius: var(--radius) !important;
  background: rgba(255,59,29,0.03) !important;
  transition: all var(--transition-smooth);
  cursor: pointer;
}
.upload-zone:hover, .upload-zone.drag-over {
  border-color: var(--c1) !important;
  background: rgba(255,59,29,0.06) !important;
  box-shadow: 0 0 30px rgba(255,59,29,0.08);
}
.upload-zone.drag-over {
  animation: uploadPulse 1s ease-in-out;
}
@keyframes uploadPulse {
  0%, 100% { box-shadow: 0 0 30px rgba(255,59,29,0.08); }
  50% { box-shadow: 0 0 50px rgba(255,59,29,0.2); }
}

/* ===== 8. 渐变进度条 + 流动动画 ===== */
.progress-bar-glow {
  height: 4px;
  background: rgba(255,255,255,0.1) !important;
  border-radius: 2px;
  overflow: hidden;
  position: relative;
}
.progress-bar-glow .progress-fill {
  height: 100%;
  background: var(--gradient) !important;
  border-radius: 2px;
  position: relative;
  transition: width 0.3s;
}
.progress-bar-glow .progress-fill::after {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.3), transparent);
  animation: progressFlow 1.5s linear infinite;
}
@keyframes progressFlow {
  0% { transform: translateX(-100%); }
  100% { transform: translateX(200%); }
}

/* ===== 9. 页面过渡 ===== */
.page-enter {
  animation: pageIn 0.3s ease;
}
@keyframes pageIn {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ===== 10. 弹窗动画 ===== */
.modal-enter {
  animation: modalIn 0.25s ease;
}
@keyframes modalIn {
  from { opacity: 0; transform: scale(0.95); }
  to { opacity: 1; transform: scale(1); }
}

/* ===== 11. 加载脉冲 ===== */
.loading-pulse {
  width: 36px; height: 36px;
  border-radius: 50%;
  background: var(--gradient);
  animation: loadPulse 1.2s ease-in-out infinite;
}
@keyframes loadPulse {
  0%, 100% { transform: scale(0.6); opacity: 0.5; }
  50% { transform: scale(1); opacity: 1; }
}

/* ===== 12. 历史页：视频卡片hover ===== */
.video-card {
  border-radius: var(--radius);
  overflow: hidden;
  transition: all var(--transition-smooth);
  cursor: pointer;
}
.video-card:hover {
  transform: translateY(-3px) scale(1.02);
  box-shadow: 0 12px 40px rgba(0,0,0,0.4), 0 0 20px rgba(255,59,29,0.1);
}
.video-card .play-btn {
  transition: all var(--transition-fast);
}
.video-card:hover .play-btn {
  background: var(--gradient) !important;
  box-shadow: var(--glow-sm);
}

/* ===== 13. 统计卡片数字渐变 ===== */
.stat-value {
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  font-weight: 800;
}

/* ===== 14. Tab/导航选中态 ===== */
.nav-active {
  position: relative;
}
.nav-active::after {
  content: '';
  position: absolute;
  bottom: 0; left: 20%; right: 20%;
  height: 2px;
  background: var(--gradient);
  border-radius: 1px;
}

/* ===== 15. SVG 图标替代 emoji ===== */
.icon-gradient {
  width: 24px; height: 24px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--gradient);
  -webkit-mask-size: contain;
  -webkit-mask-repeat: no-repeat;
  mask-size: contain;
  mask-repeat: no-repeat;
}

/* ===== 16. 步骤流程 — 时间轴连接线重制版 ===== */
.step-flow {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 0;
  position: relative;
  padding: 20px 0 0;
}
/* 水平连接线 — 桌面端 */
.step-flow::before {
  content: '';
  position: absolute;
  top: 52px;
  left: 8%;
  right: 8%;
  height: 2px;
  background: rgba(255,255,255,0.08);
  z-index: 0;
}
.step-flow::after {
  content: '';
  position: absolute;
  top: 52px;
  left: 8%;
  height: 2px;
  background: var(--gradient);
  z-index: 1;
  transition: width 0.6s ease;
}

.step-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  position: relative;
  z-index: 2;
  padding: 0 8px;
  transition: transform 0.3s ease;
}
.step-item:hover {
  transform: translateY(-4px);
}
.step-circle {
  width: 56px;  height: 56px;
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 22px; font-weight: 800;
  margin-bottom: 14px;
  background: var(--bg-card) !important;
  border: 2px solid rgba(255,255,255,0.08) !important;
  color: #999 !important;
  position: relative;
  transition: all 0.35s ease;
}
.step-circle::before {
  content: '';
  position: absolute;
  inset: -3px;
  border-radius: 50%;
  background: var(--gradient);
  opacity: 0;
  z-index: -1;
  transition: opacity 0.35s ease;
}
.step-circle .step-num {
  position: relative;
  z-index: 1;
}

.step-item:hover .step-circle,
.step-item.active .step-circle {
  background: var(--gradient) !important;
  border-color: var(--c1) !important;
  color: #fff !important;
  box-shadow: 0 0 20px rgba(255,59,29,0.3);
}
.step-item:hover .step-circle::before,
.step-item.active .step-circle::before {
  opacity: 0.5;
}

.step-label {
  font-size: 14px;
  font-weight: 600;
  color: #ccc;
  margin-bottom: 6px;
  transition: color 0.3s;
}
.step-item:hover .step-label {
  color: #fff;
}
.step-desc {
  font-size: 12px;
  color: #777;
  line-height: 1.5;
  transition: color 0.3s;
}
.step-item:hover .step-desc {
  color: #aaa;
}

.step-done .step-circle {
  background: var(--gradient) !important;
  border-color: var(--c2) !important;
  color: #fff !important;
}

/* 移动端：垂直布局 + 左侧连接线 */
@media (max-width: 768px) {
  .step-flow {
    grid-template-columns: 1fr;
    gap: 0;
    padding: 0 0 0 36px;
  }
  .step-flow::before,
  .step-flow::after {
    top: 0; bottom: 0;
    left: 26px; right: auto;
    width: 2px; height: auto;
  }
  .step-item {
    flex-direction: row;
    text-align: left;
    align-items: flex-start;
    padding: 16px 0 16px 20px;
  }
  .step-circle {
    width: 44px; height: 44px;
    font-size: 18px;
    margin-bottom: 0;
    margin-right: 14px;
    flex-shrink: 0;
  }
  .step-item .step-content {
    display: flex;
    flex-direction: column;
  }
  .step-label { margin-bottom: 4px; }
}

/* ===== 17. 侧边栏 ===== */
.sidebar-link.active {
  background: rgba(255,59,29,0.15) !important;
  color: var(--c1) !important;
  border-left: 2px solid var(--c1);
}
.sidebar-link:hover {
  background: rgba(255,59,29,0.08) !important;
}

/* ===== 18. 数据趋势图渐变 ===== */
.chart-bar {
  background: var(--gradient) !important;
  opacity: 0.8;
  transition: opacity 0.2s;
}
.chart-bar:hover {
  opacity: 1;
}

/* ===== Utility ===== */
.transition-all { transition: all var(--transition-smooth); }
.cursor-pointer { cursor: pointer; }
.rounded-card { border-radius: var(--radius); }
.rounded-btn { border-radius: var(--radius-btn); }