/* ═══════════════════════════════════════════
   Reaction 视频站 - 活泼有趣主题样式
   ═══════════════════════════════════════════ */

@import url('https://fonts.googleapis.com/css2?family=Fredoka:wght@400;500;600;700&family=Plus+Jakarta+Sans:wght@400;500;600;700&display=swap');

/* ── 变量 ── */
:root {
  --bg: #0b0b1a;
  --bg-card: #161630;
  --bg-card-hover: #1e1e42;
  --bg-elevated: #1a1a3a;
  --coral: #ff6b6b;
  --coral-light: #ff8787;
  --teal: #4ecdc4;
  --teal-light: #6ee7de;
  --yellow: #ffd93d;
  --purple: #a855f7;
  --purple-light: #c084fc;
  --green: #6bcb77;
  --pink: #ff6b9d;
  --text: #f0f0ff;
  --text-muted: #8888aa;
  --text-dim: #55557a;
  --border: #2a2a50;
  --radius: 16px;
  --radius-sm: 10px;
  --radius-lg: 24px;
  --shadow: 0 8px 32px rgba(0,0,0,0.3);
  --shadow-glow-coral: 0 0 20px rgba(255,107,107,0.3);
  --shadow-glow-teal: 0 0 20px rgba(78,205,196,0.3);
  --shadow-glow-purple: 0 0 20px rgba(168,85,247,0.3);
  --font-display: 'Fredoka', sans-serif;
  --font-body: 'Plus Jakarta Sans', 'PingFang SC', 'Microsoft YaHei', sans-serif;
  --transition: 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
}

/* ── 重置 ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  min-height: 100vh;
  overflow-x: hidden;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
button, input, select, textarea {
  font-family: inherit;
  font-size: inherit;
  border: none;
  outline: none;
  background: none;
  color: inherit;
}
button { cursor: pointer; }

/* ── 滚动条 ── */
::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: var(--text-dim); }

/* ═══════════════════════════════════════════
   布局
   ═══════════════════════════════════════════ */
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.section { padding: 60px 0; }
.section-title {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 12px;
}
.section-subtitle {
  color: var(--text-muted);
  font-size: 1.05rem;
  margin-bottom: 40px;
}

/* ═══════════════════════════════════════════
   导航栏
   ═══════════════════════════════════════════ */
.navbar {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(11, 11, 26, 0.85);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  padding: 0 24px;
}
.navbar-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 70px;
}
.navbar-logo {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 700;
  background: linear-gradient(135deg, var(--coral), var(--purple));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.navbar-links { display: flex; gap: 8px; align-items: center; }
.navbar-links a {
  padding: 8px 18px;
  border-radius: 999px;
  font-weight: 500;
  font-size: 0.95rem;
  transition: var(--transition);
  color: var(--text-muted);
}
.navbar-links a:hover,
.navbar-links a.active {
  color: var(--text);
  background: rgba(255,255,255,0.08);
}
.navbar-links a.active {
  background: linear-gradient(135deg, var(--coral), var(--purple));
  color: #fff;
}
.navbar-user {
  display: flex;
  align-items: center;
  gap: 12px;
}
.navbar-user .avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--teal), var(--purple));
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.85rem;
}

/* ═══════════════════════════════════════════
   按钮
   ═══════════════════════════════════════════ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 28px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.95rem;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}
.btn::after {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(255,255,255,0.15);
  opacity: 0;
  transition: opacity 0.3s;
}
.btn:hover::after { opacity: 1; }
.btn:active { transform: scale(0.96); }

.btn-primary {
  background: linear-gradient(135deg, var(--coral), var(--pink));
  color: #fff;
  box-shadow: var(--shadow-glow-coral);
}
.btn-secondary {
  background: linear-gradient(135deg, var(--teal), #3ba89f);
  color: #fff;
  box-shadow: var(--shadow-glow-teal);
}
.btn-purple {
  background: linear-gradient(135deg, var(--purple), #7c3aed);
  color: #fff;
  box-shadow: var(--shadow-glow-purple);
}
.btn-outline {
  border: 2px solid var(--border);
  color: var(--text);
}
.btn-outline:hover { border-color: var(--coral); color: var(--coral); }
.btn-sm { padding: 8px 20px; font-size: 0.85rem; }
.btn-lg { padding: 16px 40px; font-size: 1.1rem; }
.btn-block { width: 100%; }

/* ═══════════════════════════════════════════
   表单
   ═══════════════════════════════════════════ */
.form-group { margin-bottom: 20px; }
.form-label {
  display: block;
  font-weight: 600;
  margin-bottom: 8px;
  color: var(--text-muted);
  font-size: 0.9rem;
}
.form-input {
  width: 100%;
  padding: 14px 18px;
  background: var(--bg-elevated);
  border: 2px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text);
  font-size: 1rem;
  transition: border-color 0.3s;
}
.form-input:focus { border-color: var(--coral); }
.form-input::placeholder { color: var(--text-dim); }
textarea.form-input { resize: vertical; min-height: 100px; }
select.form-input { appearance: none; cursor: pointer; }

.form-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 40px;
  max-width: 440px;
  margin: 0 auto;
}
.form-card-title {
  font-family: var(--font-display);
  font-size: 1.8rem;
  text-align: center;
  margin-bottom: 8px;
}
.form-card-subtitle {
  text-align: center;
  color: var(--text-muted);
  margin-bottom: 32px;
}

/* ═══════════════════════════════════════════
   视频卡片
   ═══════════════════════════════════════════ */
.video-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 24px;
}
.video-card {
  background: var(--bg-card);
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border);
  transition: var(--transition);
  cursor: pointer;
  position: relative;
}
.video-card:hover {
  transform: translateY(-6px) scale(1.02);
  border-color: var(--coral);
  box-shadow: var(--shadow-glow-coral);
}
.video-card-cover {
  position: relative;
  aspect-ratio: 16/9;
  background: var(--bg-elevated);
  overflow: hidden;
}
.video-card-cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s;
}
.video-card:hover .video-card-cover img { transform: scale(1.08); }
.video-card-duration {
  position: absolute;
  bottom: 8px;
  right: 8px;
  background: rgba(0,0,0,0.8);
  padding: 3px 8px;
  border-radius: 6px;
  font-size: 0.8rem;
  font-weight: 600;
}
.video-card-play {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%) scale(0.8);
  opacity: 0;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--coral), var(--pink));
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
  box-shadow: 0 4px 20px rgba(255,107,107,0.5);
}
.video-card:hover .video-card-play {
  opacity: 1;
  transform: translate(-50%, -50%) scale(1);
}
.video-card-play svg { width: 24px; height: 24px; fill: #fff; margin-left: 3px; }
.video-card-body { padding: 16px; }
.video-card-title {
  font-weight: 600;
  font-size: 1rem;
  margin-bottom: 8px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.video-card-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 0.85rem;
  color: var(--text-muted);
}
.video-card-tag {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 600;
  background: rgba(78,205,196,0.15);
  color: var(--teal);
}
.video-card-featured {
  position: absolute;
  top: 12px;
  left: 12px;
  padding: 4px 12px;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 700;
  background: linear-gradient(135deg, var(--yellow), #ffa502);
  color: #000;
  z-index: 2;
}

/* ═══════════════════════════════════════════
   Banner / Hero
   ═══════════════════════════════════════════ */
.hero {
  position: relative;
  padding: 100px 0 80px;
  text-align: center;
  overflow: hidden;
}
.hero::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -20%;
  width: 140%;
  height: 200%;
  background: radial-gradient(ellipse at 30% 50%, rgba(255,107,107,0.12) 0%, transparent 50%),
              radial-gradient(ellipse at 70% 50%, rgba(168,85,247,0.12) 0%, transparent 50%),
              radial-gradient(ellipse at 50% 80%, rgba(78,205,196,0.08) 0%, transparent 50%);
  pointer-events: none;
}
.hero-title {
  font-family: var(--font-display);
  font-size: 3.5rem;
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 20px;
  position: relative;
}
.hero-title .gradient-text {
  background: linear-gradient(135deg, var(--coral), var(--purple), var(--teal));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero-subtitle {
  font-size: 1.2rem;
  color: var(--text-muted);
  max-width: 600px;
  margin: 0 auto 40px;
  position: relative;
}
.hero-actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  position: relative;
}

/* ── 浮动装饰 ── */
.floating-emoji {
  position: absolute;
  font-size: 2rem;
  animation: float 6s ease-in-out infinite;
  pointer-events: none;
  opacity: 0.6;
}
@keyframes float {
  0%, 100% { transform: translateY(0) rotate(0deg); }
  33% { transform: translateY(-20px) rotate(5deg); }
  66% { transform: translateY(10px) rotate(-5deg); }
}

/* ═══════════════════════════════════════════
   视频播放页
   ═══════════════════════════════════════════ */
.video-player-wrapper {
  max-width: 900px;
  margin: 0 auto;
}
.video-player {
  position: relative;
  aspect-ratio: 16/9;
  background: #000;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow);
}
.video-player video {
  width: 100%;
  height: 100%;
  object-fit: contain;
}
.video-info {
  margin-top: 24px;
  padding: 24px;
  background: var(--bg-card);
  border-radius: var(--radius);
  border: 1px solid var(--border);
}
.video-info-title {
  font-family: var(--font-display);
  font-size: 1.6rem;
  margin-bottom: 12px;
}
.video-info-meta {
  display: flex;
  gap: 16px;
  color: var(--text-muted);
  font-size: 0.9rem;
  margin-bottom: 16px;
  flex-wrap: wrap;
}
.video-info-desc {
  color: var(--text-muted);
  line-height: 1.8;
  padding-top: 16px;
  border-top: 1px solid var(--border);
}

/* ═══════════════════════════════════════════
   广告弹窗
   ═══════════════════════════════════════════ */
.ad-modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.85);
  backdrop-filter: blur(10px);
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s;
}
.ad-modal-overlay.active {
  opacity: 1;
  pointer-events: all;
}
.ad-modal {
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  padding: 40px;
  max-width: 500px;
  width: 90%;
  text-align: center;
  transform: scale(0.9);
  transition: transform 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
}
.ad-modal-overlay.active .ad-modal { transform: scale(1); }
.ad-modal-title {
  font-family: var(--font-display);
  font-size: 1.4rem;
  margin-bottom: 24px;
}

/* 倒计时圆环 */
.countdown-ring {
  width: 120px;
  height: 120px;
  margin: 0 auto 24px;
  position: relative;
}
.countdown-ring svg { transform: rotate(-90deg); }
.countdown-ring circle {
  fill: none;
  stroke-width: 6;
  stroke-linecap: round;
}
.countdown-ring .ring-bg { stroke: var(--border); }
.countdown-ring .ring-progress {
  stroke: var(--coral);
  transition: stroke-dashoffset 1s linear;
}
.countdown-number {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 700;
}
.ad-content {
  background: var(--bg-elevated);
  border-radius: var(--radius-sm);
  padding: 20px;
  margin-bottom: 24px;
  min-height: 100px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.ad-content img {
  max-height: 200px;
  border-radius: 8px;
}
.ad-content video {
  max-height: 200px;
  border-radius: 8px;
}

/* ═══════════════════════════════════════════
   会员页面
   ═══════════════════════════════════════════ */
.membership-hero {
  text-align: center;
  padding: 80px 0 40px;
  position: relative;
}
.membership-card {
  background: var(--bg-card);
  border: 2px solid var(--purple);
  border-radius: var(--radius-lg);
  padding: 48px 40px;
  max-width: 480px;
  margin: 0 auto;
  position: relative;
  overflow: hidden;
}
.membership-card::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(ellipse at center, rgba(168,85,247,0.1) 0%, transparent 60%);
  pointer-events: none;
}
.membership-price {
  font-family: var(--font-display);
  font-size: 4rem;
  font-weight: 700;
  background: linear-gradient(135deg, var(--yellow), var(--coral));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.membership-price span {
  font-size: 1.2rem;
  -webkit-text-fill-color: var(--text-muted);
}
.membership-features {
  list-style: none;
  margin: 32px 0;
  text-align: left;
}
.membership-features li {
  padding: 10px 0;
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--text-muted);
  font-size: 1.05rem;
}
.membership-features li::before {
  content: '✓';
  display: flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: rgba(107,203,119,0.15);
  color: var(--green);
  font-weight: 700;
  font-size: 0.85rem;
  flex-shrink: 0;
}

/* ═══════════════════════════════════════════
   分类筛选
   ═══════════════════════════════════════════ */
.filter-bar {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 32px;
}
.filter-btn {
  padding: 8px 20px;
  border-radius: 999px;
  font-weight: 500;
  font-size: 0.9rem;
  border: 2px solid var(--border);
  color: var(--text-muted);
  transition: var(--transition);
}
.filter-btn:hover { border-color: var(--text-dim); color: var(--text); }
.filter-btn.active {
  background: linear-gradient(135deg, var(--coral), var(--purple));
  border-color: transparent;
  color: #fff;
}

/* ═══════════════════════════════════════════
   Toast 提示
   ═══════════════════════════════════════════ */
.toast-container {
  position: fixed;
  top: 80px;
  right: 24px;
  z-index: 2000;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.toast {
  padding: 14px 24px;
  border-radius: var(--radius-sm);
  font-weight: 500;
  font-size: 0.9rem;
  box-shadow: var(--shadow);
  animation: slideInRight 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
  max-width: 360px;
}
.toast-success { background: var(--green); color: #fff; }
.toast-error { background: var(--coral); color: #fff; }
.toast-info { background: var(--purple); color: #fff; }

@keyframes slideInRight {
  from { transform: translateX(100%); opacity: 0; }
  to { transform: translateX(0); opacity: 1; }
}

/* ═══════════════════════════════════════════
   页脚
   ═══════════════════════════════════════════ */
.footer {
  border-top: 1px solid var(--border);
  padding: 40px 0;
  text-align: center;
  color: var(--text-dim);
  font-size: 0.85rem;
  margin-top: 60px;
}

/* ═══════════════════════════════════════════
   分页
   ═══════════════════════════════════════════ */
.pagination {
  display: flex;
  justify-content: center;
  gap: 8px;
  margin-top: 40px;
}
.pagination button {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 2px solid var(--border);
  color: var(--text-muted);
  font-weight: 600;
  transition: var(--transition);
}
.pagination button:hover { border-color: var(--coral); color: var(--coral); }
.pagination button.active {
  background: var(--coral);
  border-color: var(--coral);
  color: #fff;
}

/* ═══════════════════════════════════════════
   加载动画
   ═══════════════════════════════════════════ */
.loading-spinner {
  display: flex;
  justify-content: center;
  padding: 60px 0;
}
.loading-spinner::after {
  content: '';
  width: 40px;
  height: 40px;
  border: 3px solid var(--border);
  border-top-color: var(--coral);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ═══════════════════════════════════════════
   入场动画
   ═══════════════════════════════════════════ */
.fade-in {
  opacity: 0;
  transform: translateY(20px);
  animation: fadeInUp 0.6s ease forwards;
}
@keyframes fadeInUp {
  to { opacity: 1; transform: translateY(0); }
}
.stagger-1 { animation-delay: 0.1s; }
.stagger-2 { animation-delay: 0.2s; }
.stagger-3 { animation-delay: 0.3s; }
.stagger-4 { animation-delay: 0.4s; }

/* ═══════════════════════════════════════════
   空状态
   ═══════════════════════════════════════════ */
.empty-state {
  text-align: center;
  padding: 80px 20px;
  color: var(--text-dim);
}
.empty-state-icon {
  font-size: 4rem;
  margin-bottom: 16px;
}
.empty-state-text {
  font-size: 1.1rem;
  margin-bottom: 24px;
}

/* ═══════════════════════════════════════════
   响应式
   ═══════════════════════════════════════════ */
@media (max-width: 768px) {
  .hero-title { font-size: 2.2rem; }
  .hero-subtitle { font-size: 1rem; }
  .hero-actions { flex-direction: column; align-items: center; }
  .video-grid { grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 16px; }
  .section { padding: 40px 0; }
  .navbar-links a { padding: 6px 12px; font-size: 0.85rem; }
  .form-card { padding: 28px 20px; }
  .membership-card { padding: 32px 24px; }
}
@media (max-width: 480px) {
  .hero-title { font-size: 1.8rem; }
  .video-grid { grid-template-columns: 1fr; }
  .container { padding: 0 16px; }
}