/* ============================================
   SUNREX - ANIMATIONS & EFFECTS
   全局动画和视觉效果
   ============================================ */

/* ─── 01 · 基础动画关键帧 ─────────────────── */

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes slideInLeft {
  from {
    opacity: 0;
    transform: translateX(-50px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes slideInRight {
  from {
    opacity: 0;
    transform: translateX(50px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes float {
  0%, 100% { transform: translateY(0px); }
  50% { transform: translateY(-15px); }
}

@keyframes pulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(249, 115, 22, 0.4); }
  50% { box-shadow: 0 0 0 15px rgba(249, 115, 22, 0); }
}

@keyframes glow {
  0%, 100% { box-shadow: 0 0 20px rgba(249, 115, 22, 0.3); }
  50% { box-shadow: 0 0 40px rgba(249, 115, 22, 0.6); }
}

@keyframes countUp {
  from { opacity: 0; transform: scale(0.5); }
  to { opacity: 1; transform: scale(1); }
}

@keyframes rotate {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

@keyframes shimmer {
  0% { background-position: -200% 0; }
  100% { background-position: 200% 0; }
}

/* ─── 02 · 动画工具类 ─────────────────────── */

.sr-animate {
  opacity: 0;
}

.sr-animate.visible {
  opacity: 1;
}

.sr-fade-in {
  animation: fadeIn 0.8s ease-out forwards;
}

.sr-fade-in-up {
  animation: fadeInUp 0.8s ease-out forwards;
}

.sr-slide-in-left {
  animation: slideInLeft 0.8s ease-out forwards;
}

.sr-slide-in-right {
  animation: slideInRight 0.8s ease-out forwards;
}

.sr-float {
  animation: float 4s ease-in-out infinite;
}

.sr-pulse {
  animation: pulse 2s ease-in-out infinite;
}

.sr-glow {
  animation: glow 2s ease-in-out infinite;
}

/* 延迟类 */
.sr-delay-1 { animation-delay: 0.1s; }
.sr-delay-2 { animation-delay: 0.2s; }
.sr-delay-3 { animation-delay: 0.3s; }
.sr-delay-4 { animation-delay: 0.4s; }
.sr-delay-5 { animation-delay: 0.5s; }
.sr-delay-6 { animation-delay: 0.6s; }
.sr-delay-7 { animation-delay: 0.7s; }
.sr-delay-8 { animation-delay: 0.8s; }

/* ─── 03 · 悬浮效果 ───────────────────────── */

.sr-hover-lift {
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.sr-hover-lift:hover {
  transform: translateY(-8px);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

.sr-hover-scale {
  transition: transform 0.3s ease;
}

.sr-hover-scale:hover {
  transform: scale(1.05);
}

.sr-hover-glow {
  transition: box-shadow 0.3s ease;
}

.sr-hover-glow:hover {
  box-shadow: 0 0 30px rgba(249, 115, 22, 0.4);
}

/* ─── 04 · 按钮动效 ───────────────────────── */

.sr-btn-animate {
  position: relative;
  overflow: hidden;
  transition: all 0.3s ease;
}

.sr-btn-animate::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  background: rgba(255, 255, 255, 0.2);
  border-radius: 50%;
  transform: translate(-50%, -50%);
  transition: width 0.6s ease, height 0.6s ease;
}

.sr-btn-animate:hover::before {
  width: 300px;
  height: 300px;
}

.sr-btn-animate:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 30px rgba(249, 115, 22, 0.4);
}

/* ─── 05 · 卡片动效 ───────────────────────── */

.sr-card-animate {
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.sr-card-animate:hover {
  transform: translateY(-10px);
  box-shadow: 0 25px 50px rgba(0, 0, 0, 0.15);
}

.sr-card-animate:hover .sr-card-icon {
  transform: scale(1.1) rotate(5deg);
}

.sr-card-icon {
  transition: transform 0.3s ease;
}

/* ─── 06 · 几何装饰元素 ───────────────────── */

/* 网格背景 */
.sr-grid-bg {
  background-image: 
    linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
  background-size: 60px 60px;
}

/* 点阵背景 */
.sr-dots-bg {
  background-image: radial-gradient(rgba(255, 255, 255, 0.1) 1px, transparent 1px);
  background-size: 30px 30px;
}

/* 斜线纹理 */
.sr-lines-bg {
  background-image: repeating-linear-gradient(
    45deg,
    transparent,
    transparent 10px,
    rgba(255, 255, 255, 0.02) 10px,
    rgba(255, 255, 255, 0.02) 20px
  );
}

/* 圆形装饰 */
.sr-circle-decor {
  position: absolute;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.sr-circle-decor.filled {
  background: rgba(249, 115, 22, 0.1);
  border: none;
}

/* 渐变光晕 */
.sr-glow-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.5;
}

/* ─── 07 · 滚动触发动画 ───────────────────── */

.sr-scroll-animate {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.sr-scroll-animate.visible {
  opacity: 1;
  transform: translateY(0);
}

.sr-scroll-animate-left {
  opacity: 0;
  transform: translateX(-50px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.sr-scroll-animate-left.visible {
  opacity: 1;
  transform: translateX(0);
}

.sr-scroll-animate-right {
  opacity: 0;
  transform: translateX(50px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.sr-scroll-animate-right.visible {
  opacity: 1;
  transform: translateX(0);
}

.sr-scroll-animate-scale {
  opacity: 0;
  transform: scale(0.9);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.sr-scroll-animate-scale.visible {
  opacity: 1;
  transform: scale(1);
}

/* ─── 08 · 数字滚动动画 ───────────────────── */

.sr-counter {
  font-variant-numeric: tabular-nums;
}

/* ─── 09 · 导航动效 ───────────────────────── */

/* 默认状态 - 在Hero上方时 */
.sr-nav {
  background: transparent;
}

.sr-nav .sr-nav-item,
.sr-nav .sr-nav-links a {
  color: var(--sr-text-white);
}

.sr-nav .sr-nav-logo img {
  filter: brightness(0) invert(1);
}

/* 滚动后状态 */
.sr-nav-scrolled {
  background: rgba(255, 255, 255, 0.98) !important;
  backdrop-filter: blur(10px);
  box-shadow: 0 2px 20px rgba(0, 0, 0, 0.1);
}

.sr-nav-scrolled .sr-nav-item,
.sr-nav-scrolled .sr-nav-links a {
  color: var(--sr-text-dark) !important;
}

.sr-nav-scrolled .sr-nav-item:hover,
.sr-nav-scrolled .sr-nav-links a:hover {
  color: var(--sr-primary) !important;
}

.sr-nav-scrolled .sr-nav-logo img {
  filter: none !important;
}

.sr-nav-scrolled .sr-nav-lang {
  color: var(--sr-text-dark);
  background: rgba(0, 0, 0, 0.05);
}

/* 滚动后下拉菜单 - 浅色主题 */
.sr-nav-scrolled .sr-dropdown {
  background: rgba(255, 255, 255, 0.98);
  border: 1px solid rgba(0, 0, 0, 0.08);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

.sr-nav-scrolled .sr-dropdown a {
  color: var(--sr-text-dark);
}

.sr-nav-scrolled .sr-dropdown a:hover {
  background: rgba(249, 115, 22, 0.1);
  color: var(--sr-primary);
}

.sr-nav-scrolled .sr-dropdown-title,
.sr-nav-scrolled .sr-dropdown-col .sr-dropdown-title {
  color: var(--sr-text-gray);
  border-bottom-color: var(--sr-border-light);
}

.sr-nav-scrolled .sr-dropdown-col a {
  color: var(--sr-text-dark);
}

.sr-nav-scrolled .sr-dropdown-col a:hover {
  color: var(--sr-primary);
}

/* ─── 10 · 加载动画 ───────────────────────── */

.sr-loader {
  display: inline-block;
  width: 40px;
  height: 40px;
  border: 3px solid rgba(249, 115, 22, 0.2);
  border-top-color: var(--sr-primary);
  border-radius: 50%;
  animation: rotate 1s linear infinite;
}

/* ─── 11 · 渐变背景工具类 ─────────────────── */

.sr-gradient-dark {
  background: linear-gradient(135deg, #0f172a 0%, #1e293b 50%, #0f172a 100%);
}

.sr-gradient-blue {
  background: linear-gradient(135deg, #1e3a5f 0%, #0f172a 100%);
}

.sr-gradient-orange {
  background: linear-gradient(135deg, #f97316 0%, #ea580c 100%);
}

.sr-gradient-hero {
  background: 
    radial-gradient(ellipse 80% 50% at 20% 40%, rgba(30, 58, 95, 0.4) 0%, transparent 50%),
    radial-gradient(ellipse 60% 40% at 80% 60%, rgba(249, 115, 22, 0.1) 0%, transparent 50%),
    linear-gradient(135deg, #0f172a 0%, #1e293b 50%, #0f172a 100%);
}

/* ─── 12 · 响应式动画调整 ─────────────────── */

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

@media (max-width: 768px) {
  .sr-float {
    animation: none;
  }
  
  .sr-hover-lift:hover {
    transform: none;
  }
}