.training-container {
    min-height: 100vh;
    background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
    padding: 20rpx 30rpx 100rpx;
    position: relative;
    overflow-x: hidden;
}

/* 头部样式优化 */
.header {
    text-align: center;
    margin-bottom: 50rpx;
    padding-top: 60rpx;
    position: relative;
    z-index: 1;
}

.title {
    font-size: 56rpx;
    font-weight: 800;
    color: transparent;
    background: linear-gradient(45deg, #3498db, #2ecc71, #3498db);
    background-size: 200% auto;
    -webkit-background-clip: text;
    background-clip: text;
    margin-bottom: 20rpx;
    letter-spacing: 1rpx;
    position: relative;
    display: inline-block;
    animation: gradientText 3s ease infinite;
}

@keyframes gradientText {
    0%, 100% {
        background-position: 0% center;
    }
    50% {
        background-position: 100% center;
    }
}

.title::after {
    content: '';
    position: absolute;
    bottom: -8rpx;
    left: 50%;
    transform: translateX(-50%);
    width: 80rpx;
    height: 4rpx;
    background: linear-gradient(45deg, #3498db, #2ecc71);
    border-radius: 2rpx;
}

.subtitle {
    font-size: 28rpx;
    color: #64748b;
    letter-spacing: 2rpx;
    font-weight: 400;
    opacity: 0.9;
    position: relative;
    padding-top: 10rpx;
}

.header-decoration {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    pointer-events: none;
    z-index: -1;
}

.decoration-circle {
    position: absolute;
    border-radius: 50%;
    background: linear-gradient(45deg, rgba(52, 152, 219, 0.1), rgba(46, 204, 113, 0.1));
    animation: float 6s ease-in-out infinite;
}

.circle-1 {
    width: 120rpx;
    height: 120rpx;
    top: 20rpx;
    left: 10%;
    animation-delay: 0s;
}

.circle-2 {
    width: 80rpx;
    height: 80rpx;
    top: 60rpx;
    right: 15%;
    animation-delay: 2s;
}

.circle-3 {
    width: 60rpx;
    height: 60rpx;
    top: 100rpx;
    left: 20%;
    animation-delay: 4s;
}

@keyframes float {
    0%, 100% {
        transform: translateY(0) scale(1);
    }
    50% {
        transform: translateY(-20rpx) scale(1.05);
    }
}

/* 主选项卡样式优化 */
.tabs {
    display: flex;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10rpx);
    border-radius: 18rpx;
    margin-bottom: 30rpx;
    box-shadow: 0 8rpx 30rpx rgba(0, 0, 0, 0.08),
                inset 0 1rpx 0 rgba(255, 255, 255, 0.9);
    border: 1rpx solid rgba(226, 232, 240, 0.8);
    position: relative;
    overflow: hidden;
    z-index: 1;
    padding: 6rpx;
    height: 88rpx;
}

.tab-item {
    flex: 1;
    text-align: center;
    font-size: 32rpx;
    color: #64748b;
    position: relative;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    font-weight: 500;
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100%;
    border-radius: 12rpx;
    z-index: 2;
    letter-spacing: 1rpx;
}

.tab-item.active {
    color: #ffffff;
    font-weight: 600;
    text-shadow: 0 1rpx 2rpx rgba(0, 0, 0, 0.1);
}

.tab-slider {
    position: absolute;
    top: 6rpx;
    width: calc(50% - 6rpx);
    height: calc(100% - 12rpx);
    background: linear-gradient(135deg, #3498db, #2ecc71);
    border-radius: 12rpx;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 4rpx 20rpx rgba(52, 152, 219, 0.25),
                0 2rpx 8rpx rgba(52, 152, 219, 0.15);
    z-index: 1;
}

.tab-slider.left {
    left: 6rpx;
    transform: translateX(0);
}

.tab-slider.right {
    left: 6rpx;
    transform: translateX(100%);
}

.tab-highlight {
    position: absolute;
    bottom: -6rpx;
    left: 50%;
    transform: translateX(-50%);
    width: 24rpx;
    height: 4rpx;
    background: linear-gradient(135deg, #3498db, #2ecc71);
    border-radius: 2rpx;
    opacity: 0;
    transition: all 0.3s ease;
    box-shadow: 0 2rpx 6rpx rgba(52, 152, 219, 0.3);
}

.tab-item.active .tab-highlight {
    opacity: 1;
    animation: highlightPulse 2s ease infinite;
}

@keyframes highlightPulse {
    0%, 100% {
        box-shadow: 0 2rpx 6rpx rgba(52, 152, 219, 0.3);
        transform: translateX(-50%) scale(1);
    }
    50% {
        box-shadow: 0 2rpx 12rpx rgba(52, 152, 219, 0.5);
        transform: translateX(-50%) scale(1.1);
    }
}

/* 内容区域 */
.content-section {
    animation: slideUp 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(40rpx);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* 搜索框样式优化 */
.search-box {
    position: relative;
    margin-bottom: 30rpx;
    animation: slideIn 0.8s ease;
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateX(-30rpx);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.search-input {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10rpx);
    border-radius: 25rpx;
    padding: 20rpx 40rpx 20rpx 100rpx;
    font-size: 28rpx;
    box-shadow: 0 8rpx 30rpx rgba(0, 0, 0, 0.08),
                inset 0 1rpx 0 rgba(255, 255, 255, 0.8);
    border: 1rpx solid rgba(255, 255, 255, 0.5);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    z-index: 2;
}

.search-input:focus {
    border-color: rgba(52, 152, 219, 0.3);
    box-shadow: 0 12rpx 40rpx rgba(52, 152, 219, 0.15),
                inset 0 1rpx 0 rgba(255, 255, 255, 0.8);
    transform: translateY(-2rpx);
}

.search-icon {
    position: absolute;
    left: 40rpx;
    top: 50%;
    transform: translateY(-50%);
    width: 36rpx;
    height: 36rpx;
    z-index: 3;
    transition: all 0.3s ease;
}

.search-decoration {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    border-radius: 25rpx;
    overflow: hidden;
    z-index: 1;
}

.search-wave {
    position: absolute;
    top: 0;
    left: -100%;
    width: 200%;
    height: 100%;
    background: linear-gradient(90deg,
            transparent,
            rgba(52, 152, 219, 0.1),
            transparent);
    animation: waveFlow 3s ease-in-out infinite;
}

@keyframes waveFlow {
    0% {
        transform: translateX(0);
    }
    100% {
        transform: translateX(50%);
    }
}

.placeholder-style {
    color: #94a3b8;
    font-size: 28rpx;
}

/* 分类筛选样式优化 */
.category-scroll {
    white-space: nowrap;
    margin-bottom: 30rpx;
    padding: 0 10rpx;
}

.category-list {
    display: inline-flex;
    gap: 20rpx;
}

.category-item {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 20rpx 36rpx;
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(10rpx);
    border-radius: 25rpx;
    font-size: 28rpx;
    color: #64748b;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
    white-space: nowrap;
    font-weight: 500;
    min-width: 120rpx;
}

.category-item:active {
    transform: scale(0.96);
}

.category-item.active {
    background: linear-gradient(135deg, #3498db, #2ecc71);
    color: white;
    border-color: transparent;
    font-weight: 600;
}

.category-indicator {
    position: absolute;
    bottom: 8rpx;
    left: 50%;
    transform: translateX(-50%);
    width: 6rpx;
    height: 6rpx;
    background: white;
    border-radius: 50%;
    opacity: 0;
    transition: all 0.3s ease;
}

.category-item.active .category-indicator {
    opacity: 1;
    animation: indicatorBounce 1s ease infinite;
}

@keyframes indicatorBounce {
    0%, 100% {
        transform: translateX(-50%) translateY(0);
    }
    50% {
        transform: translateX(-50%) translateY(-4rpx);
    }
}

/* 文章列表样式优化 */
.articles-list {
    margin-top: 10rpx;
}

.article-card {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10rpx);
    border-radius: 25rpx;
    margin-bottom: 35rpx;
    overflow: hidden;
    box-shadow: 0 10rpx 35rpx rgba(0, 0, 0, 0.08),
                inset 0 1rpx 0 rgba(255, 255, 255, 0.8);
    border: 1rpx solid rgba(255, 255, 255, 0.5);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    opacity: 0;
    transform: translateY(30rpx);
    animation: cardAppear 0.6s ease forwards;
}

@keyframes cardAppear {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.article-card:nth-child(1) {
    animation-delay: 0.1s;
}

.article-card:nth-child(2) {
    animation-delay: 0.2s;
}

.article-card:nth-child(3) {
    animation-delay: 0.3s;
}

.article-card:nth-child(4) {
    animation-delay: 0.4s;
}

.article-card:nth-child(5) {
    animation-delay: 0.5s;
}

.article-card:active {
    transform: translateY(-8rpx);
    box-shadow: 0 20rpx 50rpx rgba(0, 0, 0, 0.15),
                inset 0 1rpx 0 rgba(255, 255, 255, 0.8);
}

.article-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4rpx;
    background: linear-gradient(45deg, #3498db, #2ecc71);
    opacity: 0;
    transition: opacity 0.4s ease;
    z-index: 2;
}

.article-card:active::before {
    opacity: 1;
}

.article-cover-container {
    position: relative;
    height: 320rpx;
    overflow: hidden;
    border-radius: 25rpx 25rpx 0 0;
}

.article-cover {
    width: 100%;
    height: 100%;
    transition: transform 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

.article-card:active .article-cover {
    transform: scale(1.08);
}

.cover-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(to bottom, transparent 50%, rgba(0, 0, 0, 0.3));
}

.category-tag {
    position: absolute;
    top: 25rpx;
    right: 25rpx;
    background: rgba(52, 152, 219, 0.95);
    backdrop-filter: blur(10rpx);
    color: white;
    padding: 10rpx 25rpx;
    border-radius: 20rpx;
    font-size: 22rpx;
    font-weight: 600;
    box-shadow: 0 4rpx 15rpx rgba(0, 0, 0, 0.2);
    z-index: 2;
}

.article-hover-effect {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(45deg, transparent, rgba(52, 152, 219, 0.1), transparent);
    opacity: 0;
    transition: opacity 0.4s ease;
}

.article-card:active .article-hover-effect {
    opacity: 1;
}

.article-info {
    padding: 35rpx;
}

.article-title {
    font-size: 34rpx;
    font-weight: 700;
    color: #1e293b;
    margin-bottom: 20rpx;
    line-height: 1.4;
    letter-spacing: 0.5rpx;
    display: -webkit-box;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 2;
    overflow: hidden;
    transition: color 0.3s ease;
}

.article-card:active .article-title {
    color: #3498db;
}

.article-desc {
    font-size: 26rpx;
    color: #64748b;
    line-height: 1.6;
    margin-bottom: 25rpx;
    display: -webkit-box;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 2;
    overflow: hidden;
}

.article-meta {
    display: flex;
    justify-content: space-between;
    margin-bottom: 25rpx;
    padding-bottom: 25rpx;
    border-bottom: 1rpx solid rgba(226, 232, 240, 0.8);
}

.meta-item {
    display: flex;
    align-items: center;
    gap: 10rpx;
}

.meta-icon {
    width: 30rpx;
    height: 30rpx;
    transition: all 0.3s ease;
    border-radius: 50%;
}

.meta-item:active .meta-icon {
    opacity: 1;
    transform: scale(1.1);
}

.meta-text {
    font-size: 24rpx;
    color: #94a3b8;
    font-weight: 400;
}

.article-stats {
    display: flex;
    justify-content: flex-end;
    align-items: center;
}

.stat-item {
    display: flex;
    align-items: center;
    gap: 10rpx;
    font-size: 24rpx;
    color: #64748b;
    font-weight: 500;
}

.stat-icon {
    width: 28rpx;
    height: 28rpx;
    opacity: 0.7;
    transition: all 0.3s ease;
}

.stat-item:active .stat-icon {
    opacity: 1;
    transform: scale(1.1);
}

/* 视频列表样式*/
.videos-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20rpx;
    margin-top: 20rpx;
}

.video-card {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10rpx);
    border-radius: 25rpx;
    overflow: hidden;
    box-shadow: 0 10rpx 35rpx rgba(0, 0, 0, 0.08),
                inset 0 1rpx 0 rgba(255, 255, 255, 0.8);
    border: 1rpx solid rgba(255, 255, 255, 0.5);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    opacity: 0;
    transform: scale(0.9);
    animation: videoCardAppear 0.6s ease forwards;
}

@keyframes videoCardAppear {
    to {
        opacity: 1;
        transform: scale(1);
    }
}

.video-card:nth-child(1) {
    animation-delay: 0.1s;
}

.video-card:nth-child(2) {
    animation-delay: 0.2s;
}

.video-card:nth-child(3) {
    animation-delay: 0.3s;
}

.video-card:nth-child(4) {
    animation-delay: 0.4s;
}

.video-card:nth-child(5) {
    animation-delay: 0.5s;
}

.video-card:nth-child(6) {
    animation-delay: 0.6s;
}

.video-card:active {
    transform: scale(0.95);
    box-shadow: 0 20rpx 50rpx rgba(0, 0, 0, 0.15),
                inset 0 1rpx 0 rgba(255, 255, 255, 0.8);
}

.video-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4rpx;
    background: linear-gradient(45deg, #3498db, #2ecc71);
    opacity: 0;
    transition: opacity 0.4s ease;
    z-index: 2;
}

.video-card:active::before {
    opacity: 1;
}

.video-cover-container {
    position: relative;
    height: 280rpx;
    overflow: hidden;
    border-radius: 25rpx 25rpx 0 0;
}

.video-cover {
    width: 100%;
    height: 100%;
    transition: transform 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

.video-card:active .video-cover {
    transform: scale(1.08);
}

.video-duration {
    position: absolute;
    bottom: 15rpx;
    right: 15rpx;
    background: rgba(0, 0, 0, 0.9);
    backdrop-filter: blur(10rpx);
    color: white;
    padding: 8rpx 18rpx;
    border-radius: 15rpx;
    font-size: 22rpx;
    font-weight: 600;
    z-index: 2;
}

.play-button {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 80rpx;
    height: 80rpx;
    background: rgba(255, 255, 255, 0.3);
    backdrop-filter: blur(10rpx);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 2;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.video-card:active .play-button {
    transform: translate(-50%, -50%) scale(1.1);
    box-shadow: 0 15rpx 40rpx rgba(0, 0, 0, 0.4),
                inset 0 1rpx 0 rgba(255, 255, 255, 0.8);
}

.play-icon {
    width: 30rpx;
    height: 30rpx;
    margin-left: 4rpx;
    transition: transform 0.3s ease;
}

.video-card:active .play-icon {
    transform: scale(1.1);
}

.play-ripple {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    transition: all 0.6s ease;
}

.video-card:active .play-ripple {
    width: 120rpx;
    height: 120rpx;
    animation: playRipple 0.8s ease-out;
}

@keyframes playRipple {
    from {
        opacity: 1;
        transform: translate(-50%, -50%) scale(0);
    }
    to {
        opacity: 0;
        transform: translate(-50%, -50%) scale(1);
    }
}

.video-hover-effect {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(45deg, transparent, rgba(52, 152, 219, 0.1), transparent);
    opacity: 0;
    transition: opacity 0.4s ease;
}

.video-card:active .video-hover-effect {
    opacity: 1;
}

.video-info {
    padding: 25rpx;
}

.video-title {
    font-size: 28rpx;
    font-weight: 700;
    color: #1e293b;
    margin-bottom: 20rpx;
    line-height: 1.4;
    display: -webkit-box;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 2;
    overflow: hidden;
    letter-spacing: 0.5rpx;
}

.video-instructor {
    display: flex;
    align-items: center;
    margin-bottom: 20rpx;
    gap: 12rpx;
}

.instructor-avatar {
    width: 40rpx;
    height: 40rpx;
    border-radius: 50%;
    border: 2rpx solid rgba(52, 152, 219, 0.3);
    box-shadow: 0 2rpx 10rpx rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
}

.video-card:active .instructor-avatar {
    border-color: #3498db;
    transform: scale(1.05);
}

.instructor-name {
    font-size: 24rpx;
    color: #64748b;
    font-weight: 500;
}

.video-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.video-meta-item {
    display: flex;
    align-items: center;
    gap: 8rpx;
    font-size: 22rpx;
    color: #94a3b8;
}

.video-meta-item image {
    width: 22rpx;
    height: 22rpx;
    opacity: 0.6;
    transition: all 0.3s ease;
}

.video-meta-item:active image {
    opacity: 1;
    transform: scale(1.1);
}

/* 空状态样式优化 */
.empty-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 150rpx 0;
    text-align: center;
    position: relative;
}

.empty-animation {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 300rpx;
    height: 300rpx;
}

.empty-circle {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 100rpx;
    height: 100rpx;
    border: 8rpx solid rgba(52, 152, 219, 0.1);
    border-radius: 50%;
    animation: emptyFloat 4s ease-in-out infinite;
}

.empty-circle.circle-2 {
    width: 150rpx;
    height: 150rpx;
    border-width: 6rpx;
    animation-delay: 1s;
}

.empty-circle.circle-3 {
    width: 200rpx;
    height: 200rpx;
    border-width: 4rpx;
    animation-delay: 2s;
}

@keyframes emptyFloat {
    0%, 100% {
        transform: translate(-50%, -50%) scale(1);
        opacity: 0.3;
    }
    50% {
        transform: translate(-50%, -50%) scale(1.1);
        opacity: 0.1;
    }
}

.empty-text {
    font-size: 32rpx;
    color: #64748b;
    font-weight: 600;
    margin-bottom: 15rpx;
    letter-spacing: 1rpx;
    position: relative;
    z-index: 1;
}

.empty-hint {
    font-size: 26rpx;
    color: #94a3b8;
    position: relative;
    z-index: 1;
}

/* 加载更多样式 */
.load-more,
.loading-more,
.no-more {
    text-align: center;
    padding: 40rpx 0;
    font-size: 26rpx;
    color: #94a3b8;
    position: relative;
}

.loading-more {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 15rpx;
}

.loading-dot {
    width: 16rpx;
    height: 16rpx;
    background: #3498db;
    border-radius: 50%;
    animation: loadingDot 1.4s infinite ease-in-out both;
}

.loading-dot:nth-child(1) {
    animation-delay: -0.32s;
}

.loading-dot:nth-child(2) {
    animation-delay: -0.16s;
}

@keyframes loadingDot {
    0%, 80%, 100% {
        transform: scale(0);
        opacity: 0.3;
    }
    40% {
        transform: scale(1);
        opacity: 1;
    }
}

.no-more {
    color: #64748b;
    position: relative;
}

.no-more::before,
.no-more::after {
    content: '';
    position: absolute;
    top: 50%;
    width: 100rpx;
    height: 1rpx;
    background: rgba(100, 116, 139, 0.2);
}

.no-more::before {
    left: 20%;
}

.no-more::after {
    right: 20%;
}

/* 响应式调整 */
@media screen and (max-width: 750rpx) {
    .videos-grid {
        grid-template-columns: 1fr;
    }

    .articles-list {
        padding: 0 10rpx;
    }

    .category-item {
        font-size: 26rpx;
        padding: 18rpx 28rpx;
        min-width: 110rpx;
    }

    .header {
        padding-top: 40rpx;
    }

    .title {
        font-size: 48rpx;
    }

    .tabs {
        height: 80rpx;
    }

    .tab-item {
        font-size: 30rpx;
    }
    
    .no-more::before,
    .no-more::after {
        width: 80rpx;
    }
    
    .no-more::before {
        left: 15%;
    }
    
    .no-more::after {
        right: 15%;
    }
}

/* 滚动条样式 */
::-webkit-scrollbar {
    width: 0;
    height: 0;
    color: transparent;
}