/* LinkSound 功能特性页面样式 */

/* ===== 页面标题区域 ===== */
/* features 页面 Hero 容器，供 banner-custom.css 叠加背景使用 */
.features-hero {
    padding: var(--spacing-xxl) 0;
    position: relative;
    overflow: hidden;
    min-height: 45vh;
}

/* features 页面标题，仅设基础排版，颜色与细节由 banner-custom.css 或主题控制 */
.features-hero-title {
    font-size: 3rem;
    font-weight: 900;
}

.page-hero {
    padding: var(--spacing-xxl) 0;
    background: var(--gradient-dark);
    position: relative;
    overflow: hidden;
}

/* 背景图片层 */
.page-hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: url('/images/backgrounds/custom_2025-09-20_13-07-10_68cea6fe797fb.webp');
    background-size: cover;
    background-position: center 100%;
    background-repeat: no-repeat;
    background-attachment: fixed;
    opacity: 1;
    z-index: 1;
    transform: scale(1.1);
}

/* 渐变叠加层 */
.page-hero::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg,
        rgba(26, 26, 26, 0.7025) 0%,
        rgba(45, 45, 45, 0.675) 50%,
        rgba(26, 26, 26, 0.7025) 100%),
        radial-gradient(circle at 20% 30%, rgba(0, 212, 255, 0.08) 0%, transparent 50%),
        radial-gradient(circle at 80% 70%, rgba(139, 92, 246, 0.08) 0%, transparent 50%);
    z-index: 2;
}

/* 标题样式 */
.page-title {
    font-size: 3rem !important;
    
                    color: #ffffff !important;
                    background: none !important;
                    -webkit-text-fill-color: #ffffff !important;
                
}

/* Section高度样式 */
.page-hero {
    min-height: 50vh !important;
}


.page-hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: url('/images/backgrounds/bg-color2.jpeg');
    background-size: cover;
    background-position: center 100%;
    background-repeat: no-repeat;
    background-attachment: fixed;
    opacity: 1;
    z-index: 1;
    transform: scale(1.1);
}

/* 渐变叠加层 */
.page-hero::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg,
        rgba(26, 26, 26, 0.7025) 0%,
        rgba(45, 45, 45, 0.675) 50%,
        rgba(26, 26, 26, 0.7025) 100%),
        radial-gradient(circle at 20% 30%, rgba(0, 212, 255, 0.08) 0%, transparent 50%),
        radial-gradient(circle at 80% 70%, rgba(139, 92, 246, 0.08) 0%, transparent 50%);
    z-index: 2;
}

/* 标题样式 */
.page-title {
    font-size: 4rem !important;
    
                    color: #ffffff !important;
                    background: none;
                    -webkit-text-fill-color: #ffffff;
                
}

/* Section高度样式 */
.page-hero {
    min-height: 55vh !important;
}


.page-hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: url('/images/backgrounds/bg-color2.jpeg');
    background-size: cover;
    background-position: center 100%;
    background-repeat: no-repeat;
    background-attachment: fixed;
    opacity: 1;
    z-index: 1;
    transform: scale(1.1);
}

/* 渐变叠加层 */
.page-hero::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg,
        rgba(26, 26, 26, 0.7025) 0%,
        rgba(45, 45, 45, 0.675) 50%,
        rgba(26, 26, 26, 0.7025) 100%),
        radial-gradient(circle at 20% 30%, rgba(0, 212, 255, 0.08) 0%, transparent 50%),
        radial-gradient(circle at 80% 70%, rgba(139, 92, 246, 0.08) 0%, transparent 50%);
    z-index: 2;
}

/* 标题样式 */
.page-title {
    font-size: 4rem !important;
    
                    color: #ffffff !important;
                    background: none;
                    -webkit-text-fill-color: #ffffff;
                
}

/* Section高度样式 */
.page-hero {
    min-height: 55vh !important;
}


.page-hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: url('/images/backgrounds/bg-color2.jpeg');
    background-size: cover;
    background-position: center 100%;
    background-repeat: no-repeat;
    background-attachment: fixed;
    opacity: 1;
    z-index: 1;
    transform: scale(1.1);
}

/* 渐变叠加层 */
.page-hero::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg,
        rgba(26, 26, 26, 0.7025) 0%,
        rgba(45, 45, 45, 0.675) 50%,
        rgba(26, 26, 26, 0.7025) 100%),
        radial-gradient(circle at 20% 30%, rgba(0, 212, 255, 0.08) 0%, transparent 50%),
        radial-gradient(circle at 80% 70%, rgba(139, 92, 246, 0.08) 0%, transparent 50%);
    z-index: 2;
}

/* 标题样式 */
.page-title {
    font-size: 4rem !important;
    
                    color: #ffffff !important;
                    background: none;
                    -webkit-text-fill-color: #ffffff;
                
}

/* Section高度样式 */
.page-hero {
    min-height: 55vh !important;
}


.page-hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: url('/images/backgrounds/bg-color2.jpeg');
    background-size: cover;
    background-position: center 100%;
    background-repeat: no-repeat;
    background-attachment: fixed;
    opacity: 1;
    z-index: 1;
    transform: scale(1.1);
}

/* 渐变叠加层 */
.page-hero::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg,
        rgba(26, 26, 26, 0.7025) 0%,
        rgba(45, 45, 45, 0.675) 50%,
        rgba(26, 26, 26, 0.7025) 100%),
        radial-gradient(circle at 20% 30%, rgba(0, 212, 255, 0.08) 0%, transparent 50%),
        radial-gradient(circle at 80% 70%, rgba(139, 92, 246, 0.08) 0%, transparent 50%);
    z-index: 2;
}

/* 标题样式 */
.page-title {
    font-size: 4rem !important;
    
                    color: #ffffff !important;
                    background: none;
                    -webkit-text-fill-color: #ffffff;
                
}

/* Section高度样式 */
.page-hero {
    min-height: 55vh !important;
}


.page-hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: url('/images/backgrounds/custom_2025-09-20_12-36-19_68ce9fc355ac1.png');
    background-size: cover;
    background-position: center 100%;
    background-repeat: no-repeat;
    background-attachment: fixed;
    opacity: 1;
    z-index: 1;
    transform: scale(1.1);
}

/* 渐变叠加层 */
.page-hero::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg,
        rgba(26, 26, 26, 0.7025) 0%,
        rgba(45, 45, 45, 0.675) 50%,
        rgba(26, 26, 26, 0.7025) 100%),
        radial-gradient(circle at 20% 30%, rgba(0, 212, 255, 0.08) 0%, transparent 50%),
        radial-gradient(circle at 80% 70%, rgba(139, 92, 246, 0.08) 0%, transparent 50%);
    z-index: 2;
}

/* 标题样式 */
.page-title {
    font-size: 4rem !important;
    
                    color: #ffffff !important;
                    background: none;
                    -webkit-text-fill-color: #ffffff;
                
}

/* Section高度样式 */
.page-hero {
    min-height: 55vh !important;
}


.page-hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: url('/images/backgrounds/custom_2025-09-20_05-43-26_68ce3efe8cf37.webp');
    background-size: cover;
    background-position: center 100%;
    background-repeat: no-repeat;
    background-attachment: fixed;
    opacity: 1;
    z-index: 1;
    transform: scale(1.1);
}

/* 渐变叠加层 */
.page-hero::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg,
        rgba(26, 26, 26, 0.26) 0%,
        rgba(45, 45, 45, 0.45) 50%,
        rgba(26, 26, 26, 0.26) 100%),
        radial-gradient(circle at 20% 30%, rgba(0, 212, 255, 0.08) 0%, transparent 50%),
        radial-gradient(circle at 80% 70%, rgba(139, 92, 246, 0.08) 0%, transparent 50%);
    z-index: 2;
}

/* 标题样式 */
.page-title {
    font-size: 3rem !important;
    
                    color: #ef4444 !important;
                    background: none;
                    -webkit-text-fill-color: #ef4444;
                
}

/* Section高度样式 */
.page-hero {
    min-height: 30vh !important;
}

/* 标题样式 */
.page-title {
    font-size: 3rem !important;
    
                    color: #ffffff !important;
                    background: none;
                    -webkit-text-fill-color: #ffffff;
                
}

/* Section高度样式 */
.page-hero {
    min-height: 30vh !important;
}

/* 标题样式 */
.page-title {
    font-size: 3rem !important;
    
                    color: #ffffff !important;
                    background: none;
                    -webkit-text-fill-color: #ffffff;
                
}

/* Section高度样式 */
.page-hero {
    min-height: 30vh !important;
}


/* Section高度样式 */
.page-hero {
    min-height: 45vh !important;
}

/* 标题样式 */
.page-title {
    font-size: 4rem !important;
    
                    color: #ffffff !important;
                    background: none;
                    -webkit-text-fill-color: #ffffff;
                
}

/* Section高度样式 */
.page-hero {
    min-height: 45vh !important;
}



.page-hero-content {
    position: relative;
    z-index: 3;
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

.page-title {
    font-size: 3rem;
    font-weight: 900;


}

.page-subtitle {
    font-size: 1.2rem;
    color: var(--white);
    margin-bottom: var(--spacing-lg);
    line-height: 1.6;
    opacity: 0.95;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.5);
}

.breadcrumb {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    font-size: 0.9rem;
    color: var(--light-gray);
}

.breadcrumb a {
    color: var(--electric-blue);
    text-decoration: none;
    transition: color var(--transition-normal);
}

.breadcrumb a:hover {
    color: var(--neon-purple);
}

.separator {
    color: var(--dark-gray);
}

.current {
    color: var(--white);
}

/* ===== 功能展示区域 ===== */
.features-showcase {
    padding: var(--spacing-xxl) 0;

}

.feature-section {
    margin-bottom: var(--spacing-xxl);
    padding: var(--spacing-xxl) 0;
    border-bottom: 1px solid var(--dark-gray);
}

.feature-section:last-child {
    border-bottom: none;
    margin-bottom: 0;
}

.feature-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xxl);
    align-items: center;
}

.feature-section.reverse .feature-content {
    grid-template-columns: 1fr 1fr;
}

.feature-section.reverse .feature-text {
    order: 2;
}

.feature-section.reverse .feature-visual {
    order: 1;
}

.feature-badge {
    display: inline-block;
    background: var(--gradient-primary);
    color: var(--primary-white);
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: var(--radius-xl);
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: var(--spacing-md);
}

.feature-title {
    font-size: 2.2rem;
    font-weight: 700;
    margin-bottom: var(--spacing-md);
    color: var(--white);
}

.feature-description {
    font-size: 1.1rem;
    color: var(--light-gray);
    line-height: 1.6;
    margin-bottom: var(--spacing-lg);
}

.feature-list {
    list-style: none;
    padding: 0;
}

.feature-list li {
    margin-bottom: var(--spacing-lg);
    padding-left: 0;
    position: relative;
    color: var(--light-gray);
    line-height: 1.6;
    display: block;
}

.feature-list li .icon {
    margin-right: var(--spacing-sm);
    vertical-align: middle;
}

.feature-list li strong {
    display: block;
    margin-bottom: var(--spacing-xs);
    color: var(--white);
    font-size: 1.1rem;
}

.feature-list li .feature-item-header {
    display: flex;
    align-items: center;
    margin-bottom: var(--spacing-xs);
}

.feature-list li .feature-item-header .icon {
    margin-right: var(--spacing-sm);
    flex-shrink: 0;
}

.feature-list li .feature-item-header strong {
    margin-bottom: 0;
    display: inline;
}

.feature-list li p {
    margin: 0;
    color: var(--light-gray);
    font-size: 0.95rem;
    line-height: 1.5;
}

/* 确保没有破折号前缀 */
.feature-list li p::before {
    content: none !important;
}

.feature-list li .feature-item-description {
    margin-left: 0 !important;
    color: var(--light-gray);
    font-size: 0.95rem;
    line-height: 1.5;
}

/* 强制确保正确的布局 */
.feature-list li .feature-item-description::before {
    content: none !important;
    display: none !important;
}

/* 强制重置所有可能的样式冲突 */
.feature-list li .feature-item-header {
    display: flex !important;
    align-items: center !important;
    margin-bottom: var(--spacing-xs) !important;
}

.feature-list li .feature-item-header .icon {
    margin-right: var(--spacing-sm) !important;
    flex-shrink: 0 !important;
    margin-bottom: 0 !important;
}

.feature-list li .feature-item-header strong {
    margin-bottom: 0 !important;
    display: inline !important;
}

/* ===== 功能视觉元素 ===== */
.feature-visual {
    position: relative;
}

.feature-image {
    position: relative;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-xl);
}

.feature-image img {
    width: 100%;
    height: auto;
    display: block;
    transition: transform var(--transition-slow);
}

.image-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.3);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity var(--transition-normal);
}

.feature-image:hover .image-overlay {
    opacity: 1;
}

.feature-image:hover img {
    transform: scale(1.05);
}

.play-button {
    width: 80px;
    height: 80px;
    background: var(--electric-blue);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    color: var(--primary-black);
    cursor: pointer;
    transition: all var(--transition-normal);
}

.play-button:hover {
    transform: scale(1.1);
    box-shadow: var(--shadow-neon);
}

/* ===== 功能视频元素 ===== */
.feature-video {
    position: relative;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.3);
    background: var(--dark-gray);
    transition: all var(--transition-normal);
    cursor: pointer;
}

.feature-video:hover {
    box-shadow: 0 15px 50px rgba(0, 212, 255, 0.2);
    transform: translateY(-2px);
}

.feature-video video {
    width: 100%;
    height: auto;
    display: block;
    border-radius: var(--radius-lg);
    outline: none;
    cursor: pointer;
}

/* 隐藏浏览器原生视频控件 */
.feature-video video::-webkit-media-controls {
    display: none !important;
}

.feature-video video::-webkit-media-controls-panel {
    display: none !important;
}

.feature-video video::-webkit-media-controls-play-button {
    display: none !important;
}

.feature-video video::-webkit-media-controls-start-playback-button {
    display: none !important;
}

.feature-video video::-webkit-media-controls-fullscreen-button {
    display: none !important;
}

.feature-video video::-webkit-media-controls-timeline {
    display: none !important;
}

.feature-video video::-webkit-media-controls-current-time-display {
    display: none !important;
}

.feature-video video::-webkit-media-controls-time-remaining-display {
    display: none !important;
}

.feature-video video::-webkit-media-controls-mute-button {
    display: none !important;
}

.feature-video video::-webkit-media-controls-volume-slider {
    display: none !important;
}

.feature-video video::-webkit-media-controls-seek-back-button {
    display: none !important;
}

.feature-video video::-webkit-media-controls-seek-forward-button {
    display: none !important;
}

.feature-video video::-webkit-media-controls-rewind-button {
    display: none !important;
}

.feature-video video::-webkit-media-controls-return-to-realtime-button {
    display: none !important;
}

.feature-video video::-webkit-media-controls-toggle-closed-captions-button {
    display: none !important;
}

/* Firefox */
.feature-video video::-moz-media-controls {
    display: none !important;
}

/* 通用方法 - 禁用右键菜单和控件 */
.feature-video video {
    -webkit-media-controls: none;
    -moz-media-controls: none;
    media-controls: none;
}

/* 强制隐藏所有可能的视频控件 */
.feature-video video::-webkit-media-controls-overlay-enclosure {
    display: none !important;
}

.feature-video video::-webkit-media-controls-enclosure {
    display: none !important;
}

.feature-video video::-webkit-media-controls-overlay-play-button {
    display: none !important;
}

/* 隐藏画中画和其他浮动控件 */
.feature-video video[controlslist] {
    -webkit-media-controls: none !important;
}

/* 完全禁用所有媒体控件 */
.feature-video video {
    pointer-events: auto;
}

.feature-video video:focus {
    outline: none !important;
}

/* 阻止右键菜单 */
.feature-video video {
    -webkit-touch-callout: none;
    -webkit-user-select: none;
    -khtml-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    user-select: none;
}

/* 降级图片样式 */
.feature-video img {
    width: 100%;
    height: auto;
    display: block;
    border-radius: var(--radius-lg);
}

/* 左下角播放按钮 */
.feature-video::after {
    content: '';
    position: absolute;
    bottom: 15px;
    left: 15px;
    transform: none;
    width: 72px;
    height: 72px;
    background: rgba(26, 26, 26, 0.8);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    opacity: 0;
    transition: all var(--transition-normal);
    pointer-events: none;
    backdrop-filter: blur(10px);
}

.feature-video::before {
    content: '▶';
    position: absolute;
    bottom: 51px;
    left: 53px;
    transform: translate(-50%, 50%);
    font-size: 34px;
    color: #ff4444;
    z-index: 1;
    opacity: 0;
    transition: all var(--transition-normal);
    pointer-events: none;
    font-weight: bold;
}

/* 播放状态时显示暂停图标 - 使用双竖线居中对齐 */
.feature-video.playing::before {
    content: '❚❚';
    bottom: 51px;
    left: 51px;
    transform: translate(-50%, 50%) scaleX(0.6) scaleY(1.3);
    font-size: 28px;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    color: #ff4444;
    letter-spacing: 1px;
}

/* 暂停状态时显示播放图标 */
.feature-video.paused::before {
    content: '▶';
    bottom: 51px;
    left: 53px;
    transform: translate(-50%, 50%);
    font-size: 34px;
    color: #ff4444;
}

/* 悬停时显示按钮并增加透明度 */
.feature-video:hover::before,
.feature-video:hover::after {
    opacity: 1;
}

.feature-video:hover::after {
    background: rgba(255, 255, 255, 1);
    transform: scale(1.1);
    box-shadow: 0 0 30px rgba(255, 255, 255, 0.5);
}

/* 暂停状态时始终显示播放按钮 */
.feature-video.paused::before,
.feature-video.paused::after {
    opacity: 1;
}

.feature-video.paused:hover::after {
    background: rgba(255, 255, 255, 1);
    transform: scale(1.1);
}

/* 全屏按钮 */
.fullscreen-btn {
    position: absolute;
    top: 15px;
    right: 15px;
    width: 40px;
    height: 40px;
    background: rgba(0, 0, 0, 0.7);
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: 8px;
    color: var(--white);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: all var(--transition-normal);
    backdrop-filter: blur(10px);
    z-index: 10;
}

.fullscreen-btn:hover {
    background: rgba(26, 26, 26, 0.9);
    border-color: rgba(255, 255, 255, 0.4);
    color: #ffffff;
    transform: scale(1.1);
}

.feature-video:hover .fullscreen-btn {
    opacity: 1;
}

/* 全屏状态下的视频样式 */
video:fullscreen {
    width: auto !important;
    height: auto !important;
    max-width: 100vw !important;
    max-height: 100vh !important;
    object-fit: contain !important;
    background: #000;
}

video:-webkit-full-screen {
    width: auto !important;
    height: auto !important;
    max-width: 100vw !important;
    max-height: 100vh !important;
    object-fit: contain !important;
    background: #000;
}

video:-moz-full-screen {
    width: auto !important;
    height: auto !important;
    max-width: 100vw !important;
    max-height: 100vh !important;
    object-fit: contain !important;
    background: #000;
}

/* ===== 音频格式网格 ===== */
.audio-formats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-md);
    padding: var(--spacing-lg);
    background: var(--gradient-dark);
    border-radius: var(--radius-lg);
    border: 1px solid var(--dark-gray);
}

.format-item {
    background: var(--dark-gray);
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    text-align: center;
    font-weight: 600;
    color: var(--white);
    transition: all var(--transition-normal);
    border: 2px solid transparent;
}

.format-item:hover {
    background: var(--electric-blue);
    color: var(--primary-black);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

/* ===== 主题展示 ===== */
.theme-showcase {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-xl);
    padding: var(--spacing-lg);
}

.theme-item {
    text-align: center;
    cursor: pointer;
    transition: all var(--transition-normal);
    position: relative;
}

.theme-item:hover {
    transform: translateY(-8px);
}

.theme-item:hover .theme-preview {
    box-shadow: var(--shadow-lg), 0 0 20px rgba(0, 212, 255, 0.3);
}

.theme-preview {
    width: 160px;
    height: 100px;
    border-radius: var(--radius-lg);
    margin: 0 auto var(--spacing-md);
    position: relative;
    border: 3px solid transparent;
    transition: all var(--transition-normal);
    overflow: hidden;
    background: var(--dark-gray);
}

.theme-preview img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: calc(var(--radius-lg) - 3px);
    transition: all var(--transition-normal);
}

.theme-item.active .theme-preview {
    border-color: var(--electric-blue);
    box-shadow: var(--shadow-neon), 0 0 25px rgba(0, 212, 255, 0.5);
}

.theme-item.active .theme-overlay {
    opacity: 1;
    visibility: visible;
}

.theme-overlay {
    position: absolute;
    top: 8px;
    right: 8px;
    width: 24px;
    height: 24px;
    background: var(--electric-blue);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-normal);
    color: var(--primary-black);
}

.theme-item span {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--light-gray);
    transition: all var(--transition-normal);
}

.theme-item.active span {
    color: var(--electric-blue);
    font-weight: 600;
}

.theme-item:hover span {
    color: var(--white);
}

/* ===== 主题展示动画 ===== */
@keyframes themeGlow {
    0%, 100% {
        box-shadow: var(--shadow-neon), 0 0 25px rgba(0, 212, 255, 0.5);
    }
    50% {
        box-shadow: var(--shadow-neon), 0 0 35px rgba(0, 212, 255, 0.8);
    }
}

.theme-item.active .theme-preview {
    animation: themeGlow 2s ease-in-out infinite;
}

/* ===== 功能区域进入动画 ===== */
.feature-section {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.8s ease-out;
}

.feature-section.animate-in {
    opacity: 1;
    transform: translateY(0);
}

.feature-card {
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.6s ease-out;
}

.feature-card.animate-in {
    opacity: 1;
    transform: translateY(0);
}

/* ===== UI模式展示 ===== */
.ui-modes {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.ui-mode-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    background: var(--dark-gray);
    border-radius: var(--radius-md);
    transition: all var(--transition-normal);
}

.ui-mode-item:hover {
    background: var(--medium-gray);
    transform: translateX(10px);
}

.ui-preview {
    width: 60px;
    height: 40px;
    border-radius: var(--radius-sm);
    position: relative;
    border: 2px solid var(--electric-blue);
}

.normal-ui {
    background: var(--secondary-black);
}

.normal-ui::after {
    content: '';
    position: absolute;
    top: 5px;
    left: 5px;
    right: 5px;
    bottom: 15px;
    background: var(--electric-blue);
    border-radius: 2px;
    opacity: 0.3;
}

.fullscreen-ui {
    background: var(--primary-black);
}

.minimal-ui {
    background: var(--dark-gray);
}

.minimal-ui::after {
    content: '';
    position: absolute;
    bottom: 5px;
    left: 5px;
    right: 5px;
    height: 8px;
    background: var(--electric-blue);
    border-radius: 2px;
    opacity: 0.5;
}

/* ===== 其他功能特性 ===== */
.additional-features {
    padding: var(--spacing-xxl) 0;
    background: var(--primary-black);
}

/* 功能卡片背景透明度控制 */
.additional-features .feature-card.card {
    background: rgba(40, 40, 40, 0.85);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.additional-features .feature-card.card:hover {
    background: rgba(50, 50, 50, 0.9);
    border-color: rgba(0, 212, 255, 0.3);
}

.features-showcase {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: var(--spacing-xl);
    max-width: 1200px;
    margin: 0 auto;
}

.showcase-card {
    background: rgba(40, 40, 40, 0.8);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 16px;
    padding: var(--spacing-xl);
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
    transition: all var(--transition-normal);
    backdrop-filter: blur(10px);
    position: relative;
    overflow: hidden;
}

.showcase-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(0, 212, 255, 0.05) 0%, rgba(0, 212, 255, 0.02) 100%);
    border-radius: 16px;
    opacity: 0;
    transition: opacity var(--transition-normal);
}

.showcase-card:hover {
    transform: translateY(-5px);
    border-color: rgba(0, 212, 255, 0.3);
    box-shadow: 0 10px 30px rgba(0, 212, 255, 0.1);
}

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

.card-icon {
    flex-shrink: 0;
    width: 80px;
    height: 80px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 12px;
    position: relative;
}

.card-icon .feature-icon {
    width: 40px;
    height: 40px;
    color: var(--electric-blue);
    filter: drop-shadow(0 0 10px rgba(0, 212, 255, 0.3));
    margin: 0 auto;
    display: block;
}

/* 柱状图图标样式 */
.chart-bars {
    display: flex;
    align-items: flex-end;
    justify-content: center;
    gap: 4px;
    height: 40px;
    width: 100%;
}

.chart-bars .bar {
    width: 8px;
    background: var(--electric-blue);
    border-radius: 2px;
    animation: barPulse 2s ease-in-out infinite;
    box-shadow: 0 0 10px rgba(0, 212, 255, 0.3);
}

.chart-bars .bar-1 {
    height: 20px;
    animation-delay: 0s;
}

.chart-bars .bar-2 {
    height: 35px;
    animation-delay: 0.3s;
}

.chart-bars .bar-3 {
    height: 25px;
    animation-delay: 0.6s;
}

@keyframes barPulse {
    0%, 100% {
        opacity: 0.7;
        transform: scaleY(1);
    }
    50% {
        opacity: 1;
        transform: scaleY(1.2);
    }
}

.card-content {
    flex: 1;
}

.card-title {
    font-size: 1.4rem;
    font-weight: 600;
    color: var(--white);
    margin-bottom: var(--spacing-sm);
    line-height: 1.3;
}

.card-description {
    color: var(--light-gray);
    line-height: 1.6;
    font-size: 0.95rem;
    margin: 0;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .features-showcase {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }

    .showcase-card {
        padding: var(--spacing-lg);
        gap: var(--spacing-md);
    }

    .card-icon {
        width: 60px;
        height: 60px;
    }

    .card-icon .feature-icon {
        width: 30px;
        height: 30px;
        margin: 0 auto;
        display: block;
    }

    .chart-bars {
        height: 30px;
        justify-content: center;
    }

    .chart-bars .bar {
        width: 6px;
    }

    .chart-bars .bar-1 {
        height: 15px;
    }

    .chart-bars .bar-2 {
        height: 25px;
    }

    .chart-bars .bar-3 {
        height: 18px;
    }

    .card-title {
        font-size: 1.2rem;
    }

    .card-description {
        font-size: 0.9rem;
    }
}

/* ===== 系统要求 ===== */
.system-requirements {
    padding: var(--spacing-xxl) 0;
    background: var(--secondary-black);
}

.requirements-grid {
    gap: var(--spacing-xl);
}

.requirement-card {
    padding: var(--spacing-xl);
}

.platform-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-md);
    border-bottom: 1px solid var(--dark-gray);
}

.platform-icon {
    width: 40px;
    height: 40px;
}

.platform-header h3 {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--white);
}

.requirement-list {
    list-style: none;
    padding: 0;
}

.requirement-list li {
    margin-bottom: var(--spacing-md);
    color: var(--light-gray);
    line-height: 1.6;
}

.requirement-list strong {
    color: var(--electric-blue);
}

/* ===== CTA区域 ===== */
.cta-section {
    padding: var(--spacing-xxl) 0;
    background: var(--gradient-secondary);
    position: relative;
    overflow: hidden;
}

.cta-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="dots" width="20" height="20" patternUnits="userSpaceOnUse"><circle cx="10" cy="10" r="2" fill="%23ffffff" opacity="0.1"/></pattern></defs><rect width="100" height="100" fill="url(%23dots)"/></svg>');
}

.cta-content {
    position: relative;
    z-index: 2;
    text-align: center;
    max-width: 600px;
    margin: 0 auto;
}

.cta-title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: var(--spacing-md);
    color: var(--primary-black);
}

.cta-description {
    font-size: 1.1rem;
    color: rgba(0, 0, 0, 0.8);
    margin-bottom: var(--spacing-xl);
    line-height: 1.6;
}

.cta-actions {
    display: flex;
    gap: var(--spacing-lg);
    justify-content: center;
}

/* ===== 响应式设计 ===== */
@media (max-width: 1024px) {
    .page-hero::before {
        background-attachment: scroll;
        opacity: 0.7;
    }

    .page-hero::after {
        background: linear-gradient(135deg,
            rgba(26, 26, 26, 0.55) 0%,
            rgba(45, 45, 45, 0.6) 50%,
            rgba(26, 26, 26, 0.55) 100%),
            radial-gradient(circle at 20% 30%, rgba(0, 212, 255, 0.07) 0%, transparent 50%),
            radial-gradient(circle at 80% 70%, rgba(139, 92, 246, 0.07) 0%, transparent 50%);
    }

    .page-title {
        font-size: 2.5rem;
    }
    
    .feature-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-xl);
    }
    
    .feature-section.reverse .feature-text,
    .feature-section.reverse .feature-visual {
        order: unset;
    }
    
    .audio-formats-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .theme-showcase {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--spacing-lg);
        padding: var(--spacing-md);
    }

    .theme-preview {
        width: 140px;
        height: 90px;
    }
}

@media (max-width: 768px) {
    .page-hero {
        padding: calc(70px + var(--spacing-lg)) 0 var(--spacing-lg);
    }

    .page-hero::before {
        background-attachment: scroll;
        opacity: 0.6;
        background-position: center top;
    }

    .page-hero::after {
        background: linear-gradient(135deg,
            rgba(26, 26, 26, 0.6) 0%,
            rgba(45, 45, 45, 0.65) 50%,
            rgba(26, 26, 26, 0.6) 100%),
            radial-gradient(circle at 20% 30%, rgba(0, 212, 255, 0.06) 0%, transparent 50%),
            radial-gradient(circle at 80% 70%, rgba(139, 92, 246, 0.06) 0%, transparent 50%);
    }

    .page-title {
        font-size: 2rem;
    }
    
    .feature-title {
        font-size: 1.8rem;
    }
    
    .audio-formats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .theme-showcase {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--spacing-md);
        padding: var(--spacing-sm);
    }

    .theme-preview {
        width: 120px;
        height: 75px;
    }

    .theme-item span {
        font-size: 0.8rem;
    }
    
    .requirements-grid {
        grid-template-columns: 1fr;
    }
    
    .cta-actions {
        flex-direction: column;
        align-items: center;
    }
    
    .cta-title {
        font-size: 2rem;
    }
    
    .breadcrumb {
        flex-wrap: wrap;
    }
}

@media (max-width: 480px) {
    .feature-section {
        padding: var(--spacing-lg) 0;
    }
    
    .audio-formats-grid {
        grid-template-columns: 1fr;
    }

    .format-item {
        padding: var(--spacing-sm);
    }

    .theme-showcase {
        grid-template-columns: 1fr;
        gap: var(--spacing-sm);
        padding: var(--spacing-xs);
    }

    .theme-preview {
        width: 200px;
        height: 125px;
    }
    
    .ui-modes {
        gap: var(--spacing-md);
    }
    
    .ui-mode-item {
        flex-direction: column;
        text-align: center;
    }
}

/* === 动态背景设置 - 开始 === */
/* 背景图片层 */
.page-hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: url('/images/backgrounds/custom_2025-09-20_15-43-57_68cecbbd8f928.png');
    background-size: cover;
    background-position: center 51%;
    background-repeat: no-repeat;
    background-attachment: fixed;
    opacity: 1;
    z-index: 1;
    transform: scale(1.1);
}

/* 渐变叠加层 */
.page-hero::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg,
        rgba(26, 26, 26, 0.4134) 0%,
        rgba(45, 45, 45, 0.528) 50%,
        rgba(26, 26, 26, 0.4134) 100%),
        radial-gradient(circle at 20% 30%, rgba(0, 212, 255, 0.08) 0%, transparent 50%),
        radial-gradient(circle at 80% 70%, rgba(139, 92, 246, 0.08) 0%, transparent 50%);
    z-index: 2;
}

/* 标题样式 */
.page-title {
    font-size: 3.8rem !important;
    
            color: #ffffff !important;
            background: none !important;
            -webkit-text-fill-color: #ffffff !important;
        
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3) !important;
    filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.3)) !important;
}

/* Section高度样式 */
.page-hero {
    min-height: 45vh !important;
}
/* === 动态背景设置 - 结束 === */

/* 下载大按钮（蓝紫渐变 + 荧光阴影） */
.download-cta-btn {
  display: inline-flex;
  align-items: center;
  gap: 16px;
  padding: 18px 28px;
  border-radius: 16px;
  background: linear-gradient(90deg, #22c1f1 0%, #7b5cf6 100%);
  color: #fff;
  text-decoration: none;
  font-weight: 700;
  font-size: 22px;
  box-shadow: 0 8px 24px rgba(123, 92, 246, 0.35), 0 0 30px rgba(34, 193, 241, 0.25);
  position: relative;
  transition: transform .15s ease, box-shadow .2s ease, filter .2s ease;
}

.download-cta-btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 12px 32px rgba(123, 92, 246, 0.45), 0 0 40px rgba(34, 193, 241, 0.35);
  filter: brightness(1.05);
}

.download-cta-btn:active {
  transform: translateY(0);
}

.download-cta-btn .cta-icon-wrap {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.18);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  box-shadow: inset 0 0 0 2px rgba(255,255,255,0.35);
  transition: transform .15s ease, box-shadow .2s ease;
}

.download-cta-btn .cta-icon {
  width: 28px;
  height: 28px;
  display: block;
  filter: drop-shadow(0 2px 4px rgba(0,0,0,0.25));
}

.download-cta-btn .cta-text {
  line-height: 1;
  color: #ffffff !important;
  -webkit-text-fill-color: #ffffff !important;
  text-shadow: 0 2px 6px rgba(34, 193, 241, 0.25), 0 2px 10px rgba(123, 92, 246, 0.25);
  transition: transform .15s ease, text-shadow .2s ease;
}

/* 适配 CTA 区域与暗背景的发光效果 */
.cta-section .download-cta-btn {
  box-shadow: 0 10px 28px rgba(34, 193, 241, 0.18), 0 10px 36px rgba(123, 92, 246, 0.25);
}

/* hover 微动画 */
.download-cta-btn:hover .cta-icon-wrap {
  transform: scale(1.08);
  box-shadow: inset 0 0 0 2px rgba(255,255,255,0.5), 0 0 12px rgba(34, 193, 241, 0.35);
}
.download-cta-btn:hover .cta-text {
  transform: translateY(-1px);
  text-shadow: 0 2px 8px rgba(34, 193, 241, 0.35), 0 2px 14px rgba(123, 92, 246, 0.35);
}

/* CTA 行为布局微调 */
.cta-actions {
  display: flex;
  gap: 24px;
  align-items: center;
  justify-content: center;
}