/* ═══════════════════════════════════════════════════════════════════
   百盛AI · 丝路智能网络 — Theme Effects v1.0
   视觉特效库: 渐变/粒子/玻璃态/发光/动画
   纯CSS · 零外部依赖
   ═══════════════════════════════════════════════════════════════════ */

/* ═══ 1. Hero区 · 动态渐变背景 ═══════════════════════════════════ */

.hero-bg {
  position: relative;
  overflow: hidden;
  background: var(--gradient-hero);
}

/* 漂浮光斑 */
.hero-bg::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background:
    radial-gradient(ellipse 600px 400px at 20% 30%, rgba(108,92,231,0.12), transparent),
    radial-gradient(ellipse 500px 350px at 75% 20%, rgba(0,212,255,0.08), transparent),
    radial-gradient(ellipse 400px 300px at 50% 70%, rgba(240,165,0,0.05), transparent);
  animation: hero-drift 20s ease-in-out infinite;
  pointer-events: none;
  z-index: 0;
}

@keyframes hero-drift {
  0%, 100% { transform: translate(0, 0) rotate(0deg); }
  33%      { transform: translate(3%, -2%) rotate(1deg); }
  66%      { transform: translate(-2%, 1%) rotate(-1deg); }
}

/* 网格纹 (可选加在 hero 区) */
.hero-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(108,92,231,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(108,92,231,0.03) 1px, transparent 1px);
  background-size: 60px 60px;
  pointer-events: none;
  z-index: 0;
}

/* ═══ 2. 卡片 · 玻璃态/发光边框 ═══════════════════════════════ */

/* 玻璃态卡片 */
.card-glass {
  background: rgba(26,26,46,0.5);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid rgba(108,92,231,0.1);
  border-radius: var(--radius-lg);
  transition:
    border-color var(--duration-base) var(--ease-out),
    box-shadow var(--duration-base) var(--ease-out),
    transform var(--duration-base) var(--ease-out);
}

.card-glass:hover {
  border-color: rgba(108,92,231,0.3);
  box-shadow:
    0 0 20px rgba(108,92,231,0.1),
    0 8px 32px rgba(0,0,0,0.3);
  transform: translateY(-2px);
}

/* 发光边框卡片 — 渐变边框辉光 */
.card-glow {
  position: relative;
  background: var(--bg-card);
  border: 1px solid var(--neutral-600);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition:
    border-color var(--duration-base) var(--ease-out),
    box-shadow var(--duration-base) var(--ease-out),
    transform var(--duration-base) var(--ease-out);
}

.card-glow::before {
  content: '';
  position: absolute;
  inset: -1px;
  border-radius: inherit;
  background: var(--gradient-card-border);
  opacity: 0;
  transition: opacity var(--duration-base) var(--ease-out);
  z-index: -1;
}

.card-glow:hover {
  border-color: transparent;
  box-shadow:
    0 0 24px rgba(108,92,231,0.15),
    0 8px 32px rgba(0,0,0,0.3);
  transform: translateY(-3px);
}

.card-glow:hover::before {
  opacity: 1;
}

/* ═══ 3. 统计数字 · 渐变文字 ════════════════════════════════════ */

/* 渐变数字 */
.stat-number {
  background: var(--gradient-text);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  font-weight: var(--weight-extrabold);
}

/* 计数动画 — 使用 CSS counter (需要 JS 配合或纯展示) */
.stat-number.animate-in {
  animation: stat-fade-up 0.6s var(--ease-out) forwards;
}

@keyframes stat-fade-up {
  from {
    opacity: 0;
    transform: translateY(12px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ═══ 4. 分割线/装饰线 ══════════════════════════════════════════ */

/* 渐变分割线 */
.divider-gradient {
  height: 1px;
  border: none;
  background: linear-gradient(90deg, transparent, var(--color-primary) 20%, var(--color-secondary) 80%, transparent);
  margin: var(--space-8) 0;
}

/* 虚线分割 */
.divider-dashed {
  height: 1px;
  border: none;
  background: repeating-linear-gradient(90deg, var(--neutral-500) 0px, var(--neutral-500) 4px, transparent 4px, transparent 8px);
}

/* 发光分割 */
.divider-glow {
  height: 2px;
  border: none;
  background: var(--neutral-500);
  box-shadow: 0 0 8px rgba(108,92,231,0.3);
  border-radius: var(--radius-full);
}

/* ═══ 5. 状态指示器 · 脉冲/呼吸灯 ═══════════════════════════════ */

/* 脉冲圆点 */
.pulse-dot {
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: var(--radius-full);
  margin-right: var(--space-2);
  position: relative;
}

.pulse-dot::after {
  content: '';
  position: absolute;
  inset: -3px;
  border-radius: inherit;
  animation: pulse-ring 2s ease-out infinite;
}

.pulse-dot--live {
  background: var(--color-success);
}
.pulse-dot--live::after {
  background: var(--color-success);
}

.pulse-dot--beta {
  background: var(--color-warning);
}
.pulse-dot--beta::after {
  background: var(--color-warning);
}

.pulse-dot--offline {
  background: var(--neutral-400);
}

@keyframes pulse-ring {
  0%   { transform: scale(1); opacity: 0.6; }
  100% { transform: scale(2.5); opacity: 0; }
}

/* 呼吸灯 */
.breathing {
  animation: breathe 3s ease-in-out infinite;
}

@keyframes breathe {
  0%, 100% { opacity: 1; }
  50%      { opacity: 0.5; }
}

/* ═══ 6. 加载态 · 骨架屏/淡入 ═══════════════════════════════════ */

/* 骨架屏 */
.skeleton {
  background: linear-gradient(90deg, var(--neutral-700) 25%, var(--neutral-600) 37%, var(--neutral-700) 63%);
  background-size: 400% 100%;
  animation: skeleton-shimmer 1.5s ease-in-out infinite;
  border-radius: var(--radius-md);
}

@keyframes skeleton-shimmer {
  0%   { background-position: 100% 50%; }
  100% { background-position: 0 50%; }
}

/* 淡入上移 */
.fade-in-up {
  opacity: 0;
  transform: translateY(20px);
  animation: fade-in-up var(--duration-lazy) var(--ease-out) forwards;
}

@keyframes fade-in-up {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* 延迟级联 */
.fade-in-up:nth-child(1) { animation-delay: 0ms; }
.fade-in-up:nth-child(2) { animation-delay: 100ms; }
.fade-in-up:nth-child(3) { animation-delay: 200ms; }
.fade-in-up:nth-child(4) { animation-delay: 300ms; }
.fade-in-up:nth-child(5) { animation-delay: 400ms; }
.fade-in-up:nth-child(6) { animation-delay: 500ms; }

/* ═══ 7. 滚动渐入 (Intersection Observer 触发) ═════════════════ */

/* JS 会添加 .revealed 类 */
.reveal-on-scroll {
  opacity: 0;
  transform: translateY(24px);
  transition:
    opacity var(--duration-slow) var(--ease-out),
    transform var(--duration-slow) var(--ease-out);
}

.reveal-on-scroll.revealed {
  opacity: 1;
  transform: translateY(0);
}

/* ═══ 8. 玻璃态悬浮标签 ═════════════════════════════════════════ */

.tag-glass {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  padding: var(--space-1) var(--space-3);
  background: rgba(108,92,231,0.1);
  border: 1px solid rgba(108,92,231,0.15);
  border-radius: var(--radius-full);
  font-size: var(--text-xs);
  font-weight: var(--weight-medium);
  color: var(--color-primary-200);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
}

/* ═══ 9. 背景纹理（微妙噪点） ════════════════════════════════════ */

/* 纯 CSS 噪点纹理 — 用 SVG data URI */
.bg-noise {
  position: relative;
}

.bg-noise::before {
  content: '';
  position: absolute;
  inset: 0;
  opacity: 0.03;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  background-size: 256px 256px;
  pointer-events: none;
  z-index: 0;
}

/* ═══ 10. 按钮风格 ══════════════════════════════════════════════ */

.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  background: var(--gradient-primary);
  color: var(--neutral-0);
  border: none;
  border-radius: var(--radius-md);
  font-size: var(--text-sm);
  font-weight: var(--weight-semibold);
  cursor: pointer;
  transition:
    box-shadow var(--duration-fast) var(--ease-out),
    transform var(--duration-fast) var(--ease-out);
}

.btn-primary:hover {
  box-shadow: var(--shadow-glow);
  transform: translateY(-1px);
}

.btn-glass {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  background: rgba(108,92,231,0.1);
  color: var(--color-primary-200);
  border: 1px solid rgba(108,92,231,0.2);
  border-radius: var(--radius-md);
  font-size: var(--text-sm);
  font-weight: var(--weight-medium);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  cursor: pointer;
  transition:
    background var(--duration-fast) var(--ease-out),
    border-color var(--duration-fast) var(--ease-out),
    box-shadow var(--duration-fast) var(--ease-out);
}

.btn-glass:hover {
  background: rgba(108,92,231,0.18);
  border-color: rgba(108,92,231,0.35);
  box-shadow: 0 0 16px rgba(108,92,231,0.12);
}

/* ═══ 11. 工具类 ════════════════════════════════════════════════ */

.text-gradient {
  background: var(--gradient-text);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.relative { position: relative; }
.z-1 { z-index: 1; }
.z-10 { z-index: 10; }