/* 引导页面样式 */
.welcome-page {
  min-height: 100vh;
  background: linear-gradient(to bottom, #fafbff 0%, #ffffff 100%);
  padding: 40rpx 0;
  display: flex;
  flex-direction: column;
  position: relative;
  overflow: hidden;
}

/* 背景装饰 - 紫色圆圈 */
.welcome-page::before {
  content: '';
  position: absolute;
  width: 500rpx;
  height: 500rpx;
  background: radial-gradient(circle, rgba(102, 126, 234, 0.06) 0%, transparent 70%);
  border-radius: 50%;
  top: -200rpx;
  right: -150rpx;
  animation: float 8s ease-in-out infinite;
}

.welcome-page::after {
  content: '';
  position: absolute;
  width: 350rpx;
  height: 350rpx;
  background: radial-gradient(circle, rgba(240, 147, 251, 0.05) 0%, transparent 70%);
  border-radius: 50%;
  bottom: 150rpx;
  left: -100rpx;
  animation: float 10s ease-in-out infinite reverse;
}

/* 1. 顶部品牌区 */
.brand-section {
  text-align: center;
  padding: 80rpx 40rpx 50rpx;
  position: relative;
  z-index: 1;
}

.brand-section .slogan {
  font-size: 56rpx;
  font-weight: bold;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 80%, #f093fb 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 24rpx;
  letter-spacing: 4rpx;
  animation: fadeInDown 0.8s ease-out;
  position: relative;
}

.brand-section .slogan::after {
  content: '';
  position: absolute;
  bottom: -16rpx;
  left: 50%;
  transform: translateX(-50%);
  width: 120rpx;
  height: 6rpx;
  background: linear-gradient(90deg, transparent, #764ba2, transparent);
  border-radius: 3rpx;
}

.brand-section .sub-slogan {
  font-size: 28rpx;
  color: #666;
  letter-spacing: 2rpx;
  animation: fadeInUp 0.8s ease-out 0.2s both;
  line-height: 1.6;
}

/* 2. 核心功能轮播区 */
.swiper-section {
  margin: 40rpx 30rpx;
  position: relative;
  z-index: 1;
  animation: fadeInUp 0.8s ease-out 0.4s both;
}

.swiper-section .feature-swiper {
  height: 400rpx;
  border-radius: 32rpx;
  background: linear-gradient(135deg, #ffffff 0%, #fafbff 100%);
  box-shadow: 0 10rpx 40rpx rgba(118, 75, 162, 0.12), 
              0 2rpx 8rpx rgba(118, 75, 162, 0.08);
  overflow: hidden;
  border: 1rpx solid rgba(118, 75, 162, 0.08);
  position: relative;
}

.swiper-section .feature-swiper::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3rpx;
  background: linear-gradient(90deg, #667eea, #764ba2, #f093fb);
  opacity: 0.6;
}

.swiper-section .swiper-item-content {
  height: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 40rpx;
  position: relative;
}

/* 轮播项不同颜色背景 */
.swiper-section .swiper-item-1 {
  background: linear-gradient(135deg, #f8f9ff 0%, #e8eaff 100%);
}

.swiper-section .swiper-item-1::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 220rpx;
  height: 220rpx;
  background: radial-gradient(circle, rgba(102, 126, 234, 0.08) 0%, transparent 70%);
  border-radius: 50%;
}

.swiper-section .swiper-item-2 {
  background: linear-gradient(135deg, #fff8fb 0%, #ffe8f5 100%);
}

.swiper-section .swiper-item-2::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 220rpx;
  height: 220rpx;
  background: radial-gradient(circle, rgba(240, 147, 251, 0.08) 0%, transparent 70%);
  border-radius: 50%;
}

.swiper-section .swiper-item-3 {
  background: linear-gradient(135deg, #f5fbff 0%, #e6f4ff 100%);
}

.swiper-section .swiper-item-3::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 220rpx;
  height: 220rpx;
  background: radial-gradient(circle, rgba(64, 169, 255, 0.08) 0%, transparent 70%);
  border-radius: 50%;
}

.swiper-section .swiper-item-4 {
  background: linear-gradient(135deg, #fcf8ff 0%, #f3e8ff 100%);
}

.swiper-section .swiper-item-4::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 220rpx;
  height: 220rpx;
  background: radial-gradient(circle, rgba(118, 75, 162, 0.1) 0%, transparent 70%);
  border-radius: 50%;
}

.swiper-section .swiper-item-content .feature-icon {
  font-size: 72rpx;
  margin-bottom: 24rpx;
  animation: iconFloat 2s ease-in-out infinite;
  filter: drop-shadow(0 6rpx 12rpx rgba(118, 75, 162, 0.15));
  position: relative;
  z-index: 1;
}

.swiper-section .swiper-item-content .feature-title {
  font-size: 36rpx;
  font-weight: bold;
  color: #333;
  margin-bottom: 20rpx;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  position: relative;
  z-index: 1;
}

.swiper-section .swiper-item-content .feature-desc {
  text-align: center;
  color: #666;
  font-size: 26rpx;
  line-height: 44rpx;
  position: relative;
  z-index: 1;
}

.swiper-section .swiper-item-content .feature-desc text {
  display: block;
}

.swiper-section .swiper-item-content .ai-badge {
  margin-top: 28rpx;
  padding: 14rpx 36rpx;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  border-radius: 50rpx;
  display: flex;
  align-items: center;
  box-shadow: 0 6rpx 20rpx rgba(118, 75, 162, 0.35),
              inset 0 1rpx 2rpx rgba(255, 255, 255, 0.3);
  animation: pulse 2.5s ease-in-out infinite;
  position: relative;
  z-index: 1;
  overflow: hidden;
}

.swiper-section .swiper-item-content .ai-badge::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: linear-gradient(45deg, transparent 30%, rgba(255, 255, 255, 0.2) 50%, transparent 70%);
  animation: shimmer 3s infinite;
}

.swiper-section .swiper-item-content .ai-badge .ai-badge-icon {
  font-size: 28rpx;
  margin-right: 10rpx;
  position: relative;
  z-index: 1;
}

.swiper-section .swiper-item-content .ai-badge .ai-badge-text {
  font-size: 26rpx;
  color: #ffffff;
  font-weight: bold;
  letter-spacing: 2rpx;
  position: relative;
  z-index: 1;
}

/* 3. 价值亮点卡片区 */
.value-section {
  margin: 35rpx 30rpx;
  position: relative;
  z-index: 1;
  animation: fadeInUp 0.8s ease-out 0.6s both;
}

.value-section .value-title {
  font-size: 36rpx;
  font-weight: bold;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  text-align: center;
  margin-bottom: 36rpx;
  letter-spacing: 3rpx;
  position: relative;
}

.value-section .value-title::before,
.value-section .value-title::after {
  content: '✦';
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  font-size: 24rpx;
  color: #764ba2;
  opacity: 0.4;
}

.value-section .value-title::before {
  left: 200rpx;
}

.value-section .value-title::after {
  right: 200rpx;
}

.value-section .value-cards {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24rpx;
}

.value-section .value-cards .value-card {
  background: linear-gradient(135deg, #ffffff 0%, #fafbff 100%);
  border-radius: 28rpx;
  padding: 36rpx 14rpx;
  text-align: center;
  box-shadow: 0 6rpx 24rpx rgba(118, 75, 162, 0.10),
              0 2rpx 8rpx rgba(118, 75, 162, 0.06);
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
  overflow: hidden;
  border: 1rpx solid rgba(118, 75, 162, 0.08);
}

.value-section .value-cards .value-card::before {
  content: '';
  position: absolute;
  top: -2rpx;
  left: -2rpx;
  right: -2rpx;
  bottom: -2rpx;
  background: linear-gradient(135deg, rgba(102, 126, 234, 0.15) 0%, rgba(118, 75, 162, 0.15) 100%);
  opacity: 0;
  transition: opacity 0.4s;
  border-radius: 28rpx;
  z-index: 0;
}

.value-section .value-cards .value-card::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: radial-gradient(circle at 50% 0%, rgba(118, 75, 162, 0.05) 0%, transparent 60%);
  opacity: 1;
}

.value-section .value-cards .value-card:active {
  transform: translateY(-10rpx) scale(1.02);
  box-shadow: 0 12rpx 36rpx rgba(118, 75, 162, 0.20),
              0 4rpx 12rpx rgba(118, 75, 162, 0.12);
}

.value-section .value-cards .value-card:active::before {
  opacity: 1;
}

.value-section .value-cards .value-card .card-icon {
  font-size: 64rpx;
  margin-bottom: 20rpx;
  filter: drop-shadow(0 4rpx 10rpx rgba(118, 75, 162, 0.12));
  position: relative;
  z-index: 1;
  animation: iconBounce 3s ease-in-out infinite;
}

.value-section .value-cards .value-card .card-title {
  font-size: 28rpx;
  color: #333;
  font-weight: 600;
  margin-bottom: 10rpx;
  position: relative;
  z-index: 1;
}

.value-section .value-cards .value-card .card-desc {
  font-size: 22rpx;
  color: #999;
  position: relative;
  z-index: 1;
}

/* 4. 操作按钮区 */
.action-section {
  margin: 60rpx 40rpx 40rpx;
  display: flex;
  flex-direction: column;
  align-items: center;
  position: relative;
  z-index: 1;
  animation: fadeInUp 0.8s ease-out 0.8s both;
}

.action-section .btn-primary {
  width: 100%;
  height: 104rpx;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: white;
  font-size: 36rpx;
  font-weight: bold;
  border-radius: 52rpx;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 12rpx 36rpx rgba(118, 75, 162, 0.35),
              0 4rpx 12rpx rgba(118, 75, 162, 0.20),
              inset 0 2rpx 4rpx rgba(255, 255, 255, 0.25);
  border: none;
  line-height: 104rpx;
  position: relative;
  overflow: hidden;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.action-section .btn-primary::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
  animation: buttonShine 3s infinite;
}

.action-section .btn-primary::after {
  border: none;
}

.action-section .btn-primary:active {
  transform: scale(0.98);
  box-shadow: 0 8rpx 24rpx rgba(118, 75, 162, 0.30),
              0 2rpx 8rpx rgba(118, 75, 162, 0.15);
}

.action-section .btn-primary .btn-icon {
  margin-right: 14rpx;
  font-size: 40rpx;
  position: relative;
  z-index: 1;
  animation: rocketFloat 2s ease-in-out infinite;
}

.action-section .btn-primary text {
  position: relative;
  z-index: 1;
}

.action-section .btn-skip {
  margin-top: 40rpx;
  font-size: 28rpx;
  color: #999;
  padding: 20rpx 40rpx;
  border-radius: 30rpx;
  transition: all 0.3s;
  position: relative;
}

.action-section .btn-skip::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: 30rpx;
  background: rgba(118, 75, 162, 0.05);
  opacity: 0;
  transition: opacity 0.3s;
}

.action-section .btn-skip:active::before {
  opacity: 1;
}

.action-section .btn-skip:active {
  color: #764ba2;
}

.action-section .help-link {
  margin-top: 28rpx;
  font-size: 26rpx;
  color: #764ba2;
  display: flex;
  align-items: center;
  padding: 18rpx 28rpx;
  border-radius: 30rpx;
  transition: all 0.3s;
  position: relative;
  background: rgba(118, 75, 162, 0.03);
  border: 1rpx solid rgba(118, 75, 162, 0.1);
}

.action-section .help-link:active {
  background: rgba(118, 75, 162, 0.08);
  border-color: rgba(118, 75, 162, 0.15);
}

.action-section .help-link .arrow {
  font-size: 32rpx;
  margin-left: 10rpx;
  font-weight: bold;
  animation: arrowMove 1.2s ease-in-out infinite;
}

/* 版本信息 */
.version-info {
  text-align: center;
  font-size: 22rpx;
  color: #ccc;
  margin-top: auto;
  padding: 30rpx 0;
  position: relative;
  z-index: 1;
}

/* ========== 动画效果 ========== */

/* 浮动动画 */
@keyframes float {
  0%, 100% {
    transform: translateY(0) rotate(0deg);
    opacity: 1;
  }
  50% {
    transform: translateY(-40rpx) rotate(3deg);
    opacity: 0.8;
  }
}

/* 淡入下落 */
@keyframes fadeInDown {
  from {
    opacity: 0;
    transform: translateY(-40rpx);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* 淡入上升 */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(40rpx);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* 图标浮动 */
@keyframes iconFloat {
  0%, 100% {
    transform: translateY(0) scale(1);
  }
  50% {
    transform: translateY(-8rpx) scale(1.05);
  }
}

/* 图标弹跳 */
@keyframes iconBounce {
  0%, 100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-6rpx);
  }
}

/* AI 徽章脉动 */
@keyframes pulse {
  0%, 100% {
    transform: scale(1);
    box-shadow: 0 6rpx 20rpx rgba(118, 75, 162, 0.35),
                inset 0 1rpx 2rpx rgba(255, 255, 255, 0.3);
  }
  50% {
    transform: scale(1.05);
    box-shadow: 0 8rpx 28rpx rgba(118, 75, 162, 0.45),
                inset 0 1rpx 2rpx rgba(255, 255, 255, 0.3);
  }
}

/* 光泽效果 */
@keyframes shimmer {
  0% {
    transform: translateX(-100%) translateY(-100%) rotate(45deg);
  }
  100% {
    transform: translateX(100%) translateY(100%) rotate(45deg);
  }
}

/* 按钮光泽 */
@keyframes buttonShine {
  0% {
    left: -100%;
  }
  50%, 100% {
    left: 100%;
  }
}

/* 火箭浮动 */
@keyframes rocketFloat {
  0%, 100% {
    transform: translateY(0) rotate(0deg);
  }
  25% {
    transform: translateY(-4rpx) rotate(-3deg);
  }
  75% {
    transform: translateY(-2rpx) rotate(3deg);
  }
}

/* 箭头移动 */
@keyframes arrowMove {
  0%, 100% {
    transform: translateX(0);
  }
  50% {
    transform: translateX(8rpx);
  }
}