* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background-color: #f8f9fa;
    color: #333333;
    line-height: 1.6;
    overflow-x: hidden;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 20px;
}

/* 头部导航 - 白色底横铺全屏 */
.header {
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 20px 0;
    border-bottom: 1px solid #e9ecef;
    position: sticky;
    top: 0;
    background-color: #ffffff;
    backdrop-filter: blur(10px);
    z-index: 1000;
    width: 100%;
    box-sizing: border-box;
}

.header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
}

.logo {
    display: flex;
    align-items: center;
    font-size: 24px;
    font-weight: bold;
    color: #333333;
}

.logo-text {
    background: linear-gradient(90deg, #4285f4, #34a853);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.nav {
    display: flex;
    gap: 30px;
}

.nav a {
    color: #6c757d;
    text-decoration: none;
    transition: all 0.3s;
    font-size: 16px;
    position: relative;
    padding: 5px 0;
}

.nav a:hover {
    color: #4285f4;
}

.nav a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, #4285f4, #34a853);
    transition: width 0.3s;
}

.nav a:hover::after {
    width: 100%;
}

/* 下拉菜单样式 */
.dropdown {
    position: relative;
    display: inline-block;
}

.dropdown-btn {
    background: none;
    border: none;
    color: #6c757d;
    text-decoration: none;
    transition: all 0.3s;
    font-size: 16px;
    position: relative;
    padding: 5px 0;
    cursor: pointer;
    font-family: inherit;
    display: flex;
    align-items: center;
    gap: 4px;
}

.dropdown-btn:hover {
    color: #4285f4;
}

.dropdown-btn::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, #4285f4, #34a853);
    transition: width 0.3s;
}

.dropdown-btn:hover::after {
    width: 100%;
}

.dropdown-icon {
    font-size: 12px;
    transition: transform 0.3s;
}

.dropdown:hover .dropdown-icon {
    transform: rotate(180deg);
}

.dropdown-content {
    display: none;
    position: absolute;
    background-color: #ffffff;
    min-width: 200px;
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.1);
    z-index: 1001;
    border-radius: 8px;
    overflow: hidden;
    margin-top: 5px;
    border: 1px solid #e9ecef;
}

.dropdown:hover .dropdown-content {
    display: block;
}

.dropdown-content a {
    color: #333333;
    padding: 12px 16px;
    text-decoration: none;
    display: block;
    transition: background-color 0.3s;
}

.dropdown-content a:hover {
    background-color: #f8f9fa;
    color: #4285f4;
}

.dropdown-content a::after {
    display: none;
} /* 移除下拉菜单项的下划线效果 */

/* 主要内容 */
.main-content {
    padding: 40px 0;
}

/* 英雄区域 */
.hero {
    margin-bottom: 120px;
    position: relative;
    overflow: hidden;
}

.hero-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 60px;
    position: relative;
    z-index: 1;
}

/* 音频对比区域样式 */
.audio-comparison {
    display: flex;
    gap: 30px;
    justify-content: center;
    align-items: center;
    width: 100%;
}

.comparison-item {
    width: 350px; /* 调整播放器宽度以适应两个并排显示 */
}

/* 音频播放器样式 */
.audio-player {
    display: flex;
    align-items: center;
    justify-content: center;
}

/* 演示动画样式 */
.demo-animation {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 20px;
    background: linear-gradient(145deg, #ffffff, #f0f0f0);
    border-radius: 20px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    width: 100%;
    max-width: 800px;
}

.demo-gif {
    width: 100%;
    max-width: 800px;
    height: 450px;
    border-radius: 15px;
    object-fit: cover;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.demo-caption {
    margin-top: 20px;
    font-size: 18px;
    font-weight: 600;
    color: #333333;
    text-align: center;
}

.player-container {
    background: linear-gradient(145deg, #ffffff, #f0f0f0);
    border-radius: 20px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    padding: 30px;
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: space-between;
}

.album-cover {
    width: 120px;
    height: 120px;
    border-radius: 50%;
    background: linear-gradient(145deg, #4285f4, #34a853);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 5px 15px rgba(66, 133, 244, 0.3);
}

.wave-animation {
    display: flex;
    align-items: flex-end;
    gap: 4px;
    height: 60px;
}

.wave-bar {
    width: 4px;
    background-color: white;
    border-radius: 2px;
    animation: wave 1s ease-in-out infinite;
}

@keyframes wave {
    0%, 100% {
        height: 10px;
    }
    50% {
        height: 40px;
    }
}

.player-controls {
    width: 100%;
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.audio-info {
    text-align: center;
}

.track-title {
    font-size: 18px;
    font-weight: 600;
    color: #333333;
    margin: 0 0 5px 0;
}

.track-artist {
    font-size: 14px;
    color: #6c757d;
    margin: 0;
}

.progress-container {
    width: 100%;
}

.progress-bar {
    height: 6px;
    background-color: #e9ecef;
    border-radius: 3px;
    position: relative;
    cursor: pointer;
}

.progress-fill {
    height: 100%;
    width: 30%;
    background: linear-gradient(90deg, #4285f4, #34a853);
    border-radius: 3px;
    position: relative;
}

.progress-handle {
    width: 16px;
    height: 16px;
    background-color: white;
    border: 2px solid #4285f4;
    border-radius: 50%;
    position: absolute;
    right: -8px;
    top: 50%;
    transform: translateY(-50%);
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.2);
}

.time-info {
    display: flex;
    justify-content: space-between;
    font-size: 12px;
    color: #adb5bd;
    margin-top: 5px;
}

.control-buttons {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 10px;
}

.control-buttons button {
    background: none;
    border: none;
    cursor: pointer;
    font-size: 24px;
    transition: transform 0.2s;
}

.control-buttons button:hover {
    transform: scale(1.1);
}

.btn-play {
    font-size: 32px;
}

.hero-text {
    flex: 1;
}

.hero-text h1 {
    font-size: 56px;
    margin-bottom: 24px;
    line-height: 1.1;
    color: #333333;
    font-weight: 800;
}

.hero-text p {
    font-size: 20px;
    color: #6c757d;
    margin-bottom: 32px;
    max-width: 600px;
}

.hero-actions {
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
}

.primary-btn {
    padding: 16px 40px;
    background: linear-gradient(90deg, #4285f4, #34a853);
    color: white;
    border: none;
    border-radius: 9999px;
    cursor: pointer;
    font-size: 16px;
    font-weight: 700;
    transition: all 0.3s;
    position: relative;
    overflow: hidden;
    z-index: 1;
}

.primary-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.6s;
    z-index: -1;
}

.primary-btn:hover::before {
    left: 100%;
}

.primary-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 40px rgba(66, 133, 244, 0.4);
}

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

.primary-btn.large {
    padding: 18px 44px;
    font-size: 18px;
    border-radius: 9999px;
}



/* 进度条样式 - 已完成显示绿色 */
.file-item.completed .audio-progress-bar {
    background-color: #34a853 !important;
}

/* 进度条样式 - 处理中显示红色 */
.file-item.processing .audio-progress-bar {
    background-color: #f44336 !important;
}

/* 进度百分比样式 */
.progress-percentage {
    font-size: 12px;
    color: #666;
    text-align: right;
    margin-top: 4px;
}



.secondary-btn {
    padding: 16px 40px;
    background-color: transparent;
    color: #4285f4;
    border: 2px solid #4285f4;
    border-radius: 9999px;
    cursor: pointer;
    font-size: 16px;
    font-weight: 700;
    transition: all 0.3s;
    position: relative;
    overflow: hidden;
    z-index: 1;
}

.secondary-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(66, 133, 244, 0.1), transparent);
    transition: left 0.6s;
    z-index: -1;
}

.secondary-btn:hover::before {
    left: 100%;
}

.secondary-btn:hover {
    background-color: rgba(66, 133, 244, 0.1);
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(66, 133, 244, 0.2);
}

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

.secondary-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.secondary-btn:disabled:hover {
    transform: none;
    box-shadow: none;
}

.hero-image {
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: center;
}

.hero-image svg {
    filter: drop-shadow(0 20px 30px rgba(66, 133, 244, 0.2));
}

/* 内容统计区域 */
.stats-section {
    margin-bottom: 100px;
}

.stats-container {
    display: flex;
    justify-content: space-around;
    padding: 40px 0;
    border-radius: 16px;
    background-color: #ffffff;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
}

.stat-item {
    text-align: center;
    position: relative;
}

.stat-item:not(:last-child)::after {
    content: '';
    position: absolute;
    top: 25%;
    right: 0;
    width: 1px;
    height: 50%;
    background: #e9ecef;
}

.stat-value {
    display: block;
    font-size: 40px;
    font-weight: 800;
    color: #4285f4;
    margin-bottom: 8px;
    font-variant-numeric: tabular-nums;
}

.stat-label {
    color: #6c757d;
    font-size: 16px;
    font-weight: 500;
}

/* 功能区域 */
.features {
    margin-bottom: 120px;
}

.section-header {
    text-align: center;
    margin-bottom: 80px;
}

.section-header h2 {
    font-size: 42px;
    margin-bottom: 16px;
    color: #333333;
    font-weight: 800;
}

.section-header p {
    font-size: 18px;
    color: #6c757d;
    max-width: 600px;
    margin: 0 auto;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
}

.feature-card {
    background-color: #ffffff;
    border: 1px solid #e9ecef;
    border-radius: 20px;
    padding: 40px;
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    position: relative;
    overflow: hidden;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, #4285f4, #34a853);
    opacity: 0;
    transition: opacity 0.4s;
}

.feature-card:hover {
    transform: translateY(-8px) scale(1.01);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
    border-color: #4285f4;
}

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

.feature-card h3 {
    font-size: 24px;
    margin-bottom: 16px;
    color: #333333;
    font-weight: 700;
}

.feature-card p {
    color: #6c757d;
    margin-bottom: 24px;
    font-size: 16px;
    line-height: 1.6;
}

/* 播放图标样式 */
.play-icon-wrapper {
    cursor: pointer;
    transition: transform 0.2s;
}

.play-icon-wrapper:hover {
    transform: scale(1.1);
}

.file-icon.play-icon {
    color: #4285f4;
}

/* 全局底部播放器样式 */
.global-audio-player {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background-color: white;
    border-top: 1px solid #e9ecef;
    padding: 15px 20px;
    box-shadow: 0 -2px 10px rgba(0, 0, 0, 0.1);
    z-index: 1000;
}

.global-player-content {
    display: flex;
    align-items: center;
    gap: 20px;
    max-width: 1200px;
    margin: 0 auto;
}

.current-track-info {
    display: flex;
    align-items: center;
    gap: 15px;
    flex: 0 0 auto;
}

.player-icon {
    color: #4285f4;
}

.track-name {
    font-weight: 600;
    color: #333;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 200px;
}

.track-status {
    font-size: 12px;
    color: #6c757d;
}

.global-player-controls {
    flex: 1;
    display: flex;
    align-items: center;
    gap: 20px;
}

.global-player-controls audio {
    flex: 1;
    min-width: 300px;
    max-width: 600px;
}

.close-btn {
    padding: 8px 16px;
    background-color: #6c757d;
    color: white;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    font-size: 14px;
    transition: background-color 0.3s;
}

.close-btn:hover {
    background-color: #5a6268;
}

/* 按钮禁用样式 */
button:disabled,
button.disabled {
    background-color: #6c757d;
    cursor: not-allowed;
    opacity: 0.65;
}

/* 上传区域 */
.upload-area {
    border: 2px dashed #dee2e6;
    border-radius: 20px;
    padding: 60px 30px;
    margin-bottom: 20px;
    text-align: center;
    cursor: pointer;
    transition: all 0.4s;
    background-color: #f8f9fa;
    position: relative;
    overflow: hidden;
}

.upload-area:hover {
    border-color: #4285f4;
    background-color: rgba(66, 133, 244, 0.05);
    transform: translateY(-4px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.05);
}

.upload-area:hover .upload-label svg {
    transform: scale(1.1) rotate(5deg);
}

/* 拖放时的样式 */
.upload-area.drag-over {
    border-color: #28a745;
    background-color: rgba(40, 167, 69, 0.1);
    transform: translateY(-6px);
    box-shadow: 0 20px 40px rgba(40, 167, 69, 0.15);
}

.upload-area.drag-over .upload-label svg {
    transform: scale(1.2) rotate(10deg);
    color: #28a745;
}

/* 增强上传标签的点击区域 */
.upload-label {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 16px;
    cursor: pointer;
    color: #6c757d;
    transition: all 0.4s;
    width: 100%;
    height: 100%;
    padding: 40px 20px; /* 增加内边距扩大点击区域 */
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    margin: 0;
    user-select: none;
    -webkit-user-select: none;
}

.upload-label svg {
    width: 64px;
    height: 64px;
    color: #4285f4;
    transition: all 0.3s;
    pointer-events: none;
}

.upload-label strong {
    color: #333333;
    font-size: 18px;
    pointer-events: none;
}

.upload-hint {
    margin-top: 16px;
    font-size: 14px;
    color: #adb5bd;
    pointer-events: none;
}

/* 未上传文件提示文字样式 */
.no-file-message {
    text-align: center;
    padding: 20px;
    color: #888;
    font-size: 14px;
    font-style: italic;
    background-color: #f9f9f9;
    border-radius: 8px;
    border: 1px solid #e0e0e0;
    margin-bottom: 20px;
}

/* 预览容器样式 */
.preview-container {
    margin-top: 20px;
    background-color: #f8f9fa;
    padding: 15px;
    border-radius: 8px;
    border: 1px solid #e9ecef;
    width: 100%;
    display: block;
}

.preview-container .audio-player {
    position: relative;
    margin: 0;
    display: flex;
    align-items: center;
    gap: 10px;
    width: 100%;
}

.audio-player .remove-btn {
    margin-left: 10px;
    white-space: nowrap;
}

.audio-player {
    margin-bottom: 12px;
}

.audio-player audio {
    width: 100%;
    min-width: 200px;
    background-color: #f8f9fa;
    border-radius: 4px;
}

/* 移除按钮样式 - 与下载按钮保持一致 */
.remove-btn {
    padding: 8px 16px;
    background-color: #dc3545;
    color: #fff;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    font-size: 14px;
    font-weight: 500;
    transition: all 0.2s ease;
    text-decoration: none;
    display: inline-block;
    text-align: center;
    min-width: 80px;
}

/* 优化移除按钮的交互效果 */
.remove-btn:hover {
    background-color: #dc3545;
    transform: translateY(-1px);
    box-shadow: 0 2px 8px rgba(220, 53, 69, 0.3);
}

/* 文件列表 */
.file-list {
    max-height: 400px;
    overflow-y: auto;
    scrollbar-width: none; /* Firefox */
    -ms-overflow-style: none; /* IE and Edge */
}

/* 操作按钮区域 */
.action-buttons {
    display: flex;
    justify-content: flex-end;
    gap: 12px;
    margin-top: 20px;
    padding-top: 20px;
    border-top: 1px solid #e9ecef;
}

/* 主要按钮样式增强 */
.primary-btn {
    background: linear-gradient(90deg, #4285f4, #34a853);
    color: white;
    border: none;
    padding: 10px 24px;
    border-radius: 8px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
    z-index: 1;
}

.primary-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.6s;
    z-index: -1;
}

.primary-btn:hover::before {
    left: 100%;
}

.primary-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(66, 133, 244, 0.3);
}

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

.primary-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* 次要按钮样式增强 */
.secondary-btn {
    background-color: #f8f9fa;
    color: #333333;
    border: 1px solid #dee2e6;
    padding: 10px 24px;
    border-radius: 8px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
    position: relative;
    overflow: hidden;
    z-index: 1;
}

/* 去除文件列表的滚动条 */
.file-list::-webkit-scrollbar {
    display: none; /* Chrome, Safari and Opera */
}

.file-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px;
    background-color: #f8f9fa;
    border-radius: 4px;
    margin-bottom: 8px;
    border: 1px solid #e9ecef;
}

.file-info {
    display: flex;
    align-items: center;
    gap: 12px;
}

.file-icon {
    width: 24px;
    height: 24px;
    color: #4285f4;
}

.file-name {
    font-size: 14px;
    color: #333333;
}

.file-size {
    font-size: 12px;
    color: #adb5bd;
}

/* 参数组 */
.parameter-group {
    margin-bottom: 24px;
    position: relative;
}

.parameter-group label {
    display: block;
    margin-bottom: 8px;
    color: #333333;
    font-weight: 500;
}

.slider-container {
    display: flex;
    align-items: center;
    gap: 12px;
}

.slider-container input[type="range"] {
    flex: 1;
    height: 6px;
    background-color: #dee2e6;
    border-radius: 3px;
    outline: none;
    -webkit-appearance: none;
}

.slider-container input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 18px;
    height: 18px;
    background-color: #4285f4;
    border-radius: 50%;
    cursor: pointer;
}

.slider-container input[type="range"]::-moz-range-thumb {
    width: 18px;
    height: 18px;
    background-color: #4285f4;
    border-radius: 50%;
    cursor: pointer;
    border: none;
}

.slider-container span {
    min-width: 50px;
    text-align: right;
    color: #4285f4;
    font-weight: 500;
}

.parameter-group select {
    width: 100%;
    padding: 10px 12px;
    background-color: #f8f9fa;
    color: #333333;
    border: 1px solid #dee2e6;
    border-radius: 4px;
    font-size: 14px;
    cursor: pointer;
}

.parameter-group select:focus {
    outline: none;
    border-color: #4285f4;
}

/* 批量操作区域 */
.batch-actions {
    margin-top: 40px;
    text-align: center;
}

.action-buttons {
    display: flex;
    justify-content: center;
    gap: 20px;
    flex-wrap: wrap;
    margin-top: 20px;
}



/* 全局进度条样式 */
.progress-container {
    margin-top: 40px;
    background-color: #f8f9fa;
    border: 1px solid #e9ecef;
    border-radius: 12px;
    padding: 20px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}

.progress-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 12px;
    font-weight: 600;
    color: #333333;
}

.progress-bar {
    height: 8px;
    background-color: #dee2e6;
    border-radius: 4px;
    overflow: hidden;
    position: relative;
}

.progress-fill {
    height: 100%;
    width: 0;
    background: linear-gradient(90deg, #4285f4, #34a853);
    border-radius: 4px;
    transition: width 0.3s ease;
    position: relative;
}

.progress-fill::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.5), transparent);
    animation: shimmer 2s infinite;
}

@keyframes shimmer {
    0% {
        transform: translateX(-100%);
    }
    100% {
        transform: translateX(100%);
    }
}

/* 文件处理状态样式 */
.file-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px;
    background-color: #f8f9fa;
    border-radius: 12px;
    margin-bottom: 20px;
    border: 1px solid #e9ecef;
    transition: all 0.3s;
    position: relative;
    overflow: visible;
    flex-wrap: wrap;
    min-height: 60px;
}

.file-item:hover {
    /* 取消鼠标悬停效果 */
    transform: none;
    box-shadow: none;
}

.file-item.processing {
    border-color: #4285f4;
    background-color: rgba(66, 133, 244, 0.05);
}

.file-item.completed {
    border-color: #28a745;
    background-color: rgba(40, 167, 69, 0.05);
}

.file-item.error {
    border-color: #dc3545;
    background-color: rgba(220, 53, 69, 0.05);
}

.file-info {
    display: flex;
    align-items: center;
    gap: 12px;
    flex: 1;
    min-width: 0;
}

.file-icon {
    width: 24px;
    height: 24px;
    color: #4285f4;
}

.file-name {
    font-size: 14px;
    color: #333333;
    font-weight: 500;
    flex: 1;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.file-size {
    font-size: 12px;
    color: #adb5bd;
    margin-right: 12px;
}

.file-status {
    font-size: 12px;
    padding: 4px 8px;
    border-radius: 4px;
    font-weight: 500;
    min-width: 60px;
    text-align: center;
}

.file-status.processing {
    background-color: rgba(66, 133, 244, 0.1);
    color: #4285f4;
}

.file-status.completed {
    background-color: rgba(40, 167, 69, 0.1);
    color: #28a745;
}

.file-status.error {
    background-color: rgba(220, 53, 69, 0.1);
    color: #dc3545;
}

/* 文件项操作按钮 */
.file-actions {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-shrink: 0;
    flex-wrap: wrap;
    justify-content: flex-end;
}

/* 统一按钮样式，确保图标和文字正确显示 */
.remove-btn, .download-btn, .reprocess-btn, .play-btn, .process-btn {
    padding: 8px 12px;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    font-size: 14px;
    font-weight: 500;
    transition: all 0.3s;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    min-width: 80px;
    justify-content: center;
}

.remove-btn {
    background-color: #dc3545;
    color: #fff;
}

.remove-btn:hover {
    background-color: #c82333;
    transform: translateY(-1px);
    box-shadow: 0 2px 8px rgba(220, 53, 69, 0.3);
}

.download-btn {
    background-color: #28a745;
    color: #fff;
    text-decoration: none;
}

.download-btn:hover {
    background-color: #218838;
    transform: translateY(-1px);
    box-shadow: 0 2px 8px rgba(40, 167, 69, 0.3);
}

.reprocess-btn, .play-btn, .process-btn {
    background-color: #17a2b8;
    color: #fff;
}

.reprocess-btn:hover, .play-btn:hover, .process-btn:hover {
    background-color: #138496;
    transform: translateY(-1px);
    box-shadow: 0 2px 8px rgba(23, 162, 184, 0.3);
}

/* 确保SVG图标大小一致 */
.remove-btn svg, .download-btn svg, .reprocess-btn svg, .play-btn svg, .process-btn svg {
    width: 16px;
    height: 16px;
    flex-shrink: 0;
}

/* 单文件进度条 */
.file-progress {
    width: 100%;
    height: 4px;
    background-color: #e9ecef;
    border-radius: 2px;
    margin: 8px 0;
    position: relative;
    cursor: pointer;
}

.file-progress-fill {
    height: 100%;
    width: 0;
    background: linear-gradient(90deg, #4285f4, #34a853);
    transition: width 0.3s ease;
}

/* 处理结果区域 */
.preview-section {
    margin-bottom: 120px;
}

.results-container {
    background-color: #ffffff;
    border: 1px solid #e9ecef;
    border-radius: 16px;
    padding: 40px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
    min-height: 200px;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* 工作流程区域 */
.workflow {
    margin-bottom: 120px;
}

.workflow-steps {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 20px;
    position: relative;
}

.step-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    position: relative;
    z-index: 2;
    flex: 1;
}

.step-arrow {
    color: #adb5bd;
    font-size: 24px;
    font-weight: bold;
}

.step-number {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 80px;
    height: 80px;
    background: linear-gradient(145deg, #4285f4, #34a853);
    color: #fff;
    border-radius: 50%;
    font-weight: 800;
    font-size: 24px;
    margin-bottom: 24px;
    box-shadow: 0 10px 30px rgba(66, 133, 244, 0.3);
    transition: all 0.3s;
}

.step-item:hover .step-number {
    transform: scale(1.05);
    box-shadow: 0 15px 35px rgba(66, 133, 244, 0.4);
}

.step-content h3 {
    color: #333333;
    margin-bottom: 12px;
    font-size: 20px;
    font-weight: 700;
}

.step-content p {
    color: #6c757d;
    font-size: 16px;
    line-height: 1.6;
    margin: 0;
}

/* FAQ区域 */
.faq {
    margin-bottom: 120px;
}

.faq-container {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    margin-bottom: 24px;
    border-bottom: 1px solid #dee2e6;
    padding-bottom: 24px;
}

.faq-item:last-child {
    border-bottom: none;
    margin-bottom: 0;
    padding-bottom: 0;
}

.faq-question {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 24px 30px;
    cursor: pointer;
    transition: all 0.3s;
    background-color: #ffffff;
    border-radius: 16px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
}

.faq-question:hover {
    background-color: #f8f9fa;
}

.faq-question h4 {
    color: #333333;
    margin: 0;
    font-size: 18px;
    font-weight: 600;
}

.faq-icon {
    width: 24px;
    height: 24px;
    color: #4285f4;
    transition: transform 0.3s;
}

.faq-answer {
    padding: 24px 30px 0 30px;
    color: #6c757d;
    line-height: 1.6;
}

/* 应用场景区域 */
.use-cases {
    margin-bottom: 120px;
}

.use-cases-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
}

.use-case-item {
    background-color: #ffffff;
    border: 1px solid #e9ecef;
    border-radius: 20px;
    padding: 40px;
    text-align: center;
    transition: all 0.3s;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
}

.use-case-item:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
    border-color: #4285f4;
}

.use-case-item h3 {
    color: #333333;
    margin-bottom: 16px;
    font-size: 20px;
    font-weight: 700;
}

.use-case-item p {
    color: #6c757d;
    font-size: 16px;
    line-height: 1.6;
    margin: 0;
}

/* 行动召唤区域 */
.cta-section {
    margin-bottom: 120px;
    background: linear-gradient(145deg, #4285f4, #34a853);
    border-radius: 30px;
    overflow: hidden;
    position: relative;
}

.cta-content {
    padding: 80px 40px;
    text-align: center;
    position: relative;
    z-index: 1;
}

.cta-content h2 {
    font-size: 42px;
    color: #ffffff;
    margin-bottom: 20px;
    font-weight: 800;
}

.cta-content p {
    font-size: 20px;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 40px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.cta-content .primary-btn {
    background: #ffffff;
    color: #4285f4;
    font-size: 18px;
    padding: 20px 48px;
}

.cta-content .primary-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.2);
}

/* 页脚 - 白色底横铺全屏 */
.footer {
    background-color: #ffffff;
    border-top: 1px solid #e9ecef;
    padding: 60px 0;
    width: 100%;
    box-sizing: border-box;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    flex-wrap: wrap;
    gap: 40px;
    margin-bottom: 40px;
    max-width: 1400px;
    margin-left: auto;
    margin-right: auto;
    padding: 0 20px;
}

.footer-brand {
    max-width: 300px;
}

.footer-logo {
    font-size: 24px;
    font-weight: bold;
    color: #333333;
    margin-bottom: 16px;
}

.footer-brand p {
    color: #6c757d;
    font-size: 16px;
    line-height: 1.6;
}

.footer-links {
    display: flex;
    gap: 60px;
    flex-wrap: wrap;
}

.footer-column h4 {
    color: #333333;
    margin-bottom: 20px;
    font-size: 18px;
    font-weight: 600;
}

.footer-column ul {
    list-style: none;
    padding: 0;
}

.footer-column li {
    margin-bottom: 12px;
}

.footer-column a {
    color: #6c757d;
    text-decoration: none;
    transition: color 0.3s;
    font-size: 16px;
}

.footer-column a:hover {
    color: #4285f4;
}

.wechat-qrcode {
    text-align: center;
}

.wechat-qrcode img {
    border: 1px solid #e9ecef;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    margin-bottom: 12px;
}

.wechat-qrcode p {
    color: #6c757d;
    font-size: 14px;
    margin: 0;
}

.footer-bottom {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid #e9ecef;
    max-width: 1400px;
    margin-left: auto;
    margin-right: auto;
    padding-left: 20px;
    padding-right: 20px;
}

.copyright {
    color: #adb5bd;
    font-size: 14px;
}

/* 优化空状态样式 */
.empty-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 60px 20px;
    color: #adb5bd;
    text-align: center;
    min-height: 200px;
}

.empty-state svg {
    margin-bottom: 20px;
    opacity: 0.5;
    width: 64px;
    height: 64px;
    color: #4285f4;
}

.empty-state p {
    font-size: 16px;
    margin: 0;
    color: #6c757d;
    font-weight: 500;
}

/* 工具提示样式 */
.tooltip {
    position: relative;
    display: inline-block;
}

.tooltip .tooltiptext {
    visibility: hidden;
    width: 120px;
    background-color: #333333;
    color: #ffffff;
    text-align: center;
    border-radius: 4px;
    padding: 5px;
    position: absolute;
    z-index: 1;
    bottom: 125%;
    left: 50%;
    margin-left: -60px;
    opacity: 0;
    transition: opacity 0.3s;
    font-size: 12px;
}

.tooltip:hover .tooltiptext {
    visibility: visible;
    opacity: 1;
}

/* 成功状态颜色 */
.success-color {
    color: #28a745;
}

/* 处理中状态颜色 */
.processing-color {
    color: #4285f4;
}

/* 错误状态颜色 */
.error-color {
    color: #dc3545;
}

/* 处理中状态 */
.processing-state {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px;
    background-color: #f8f9fa;
    border-radius: 8px;
    margin-bottom: 16px;
    border: 1px solid #e9ecef;
}

.processing-info {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.processing-name {
    color: #333333;
    font-weight: 500;
}

.processing-status {
    color: #4285f4;
    font-size: 14px;
}

/* 处理中加载动画 */
.processing-spinner {
    width: 32px;
    height: 32px;
    border: 3px solid #e9ecef;
    border-top-color: #4285f4;
    border-radius: 50%;
    animation: spin 1s ease-in-out infinite;
}

.processing-spinner-small {
    width: 20px;
    height: 20px;
    border: 2px solid #e9ecef;
    border-top-color: #4285f4;
    border-radius: 50%;
    animation: spin 1s ease-in-out infinite;
}

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

/* 下载按钮样式 */
.download-btn {
    padding: 8px 16px;
    background-color: #28a745;
    color: white;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    font-size: 14px;
    font-weight: 500;
    transition: all 0.3s;
    text-decoration: none;
    display: inline-block;
    text-align: center;
    min-width: 80px;
}

.download-btn:hover {
    background-color: #218838;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(40, 167, 69, 0.3);
}

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

/* 响应式设计 - 平板和手机 */
@media (max-width: 992px) {
    .use-cases-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .header {
        flex-direction: column;
        gap: 15px;
        padding: 15px 0;
    }
    
    /* 音频播放器响应式设计 */
    .audio-player {
        /* 移除固定尺寸，让播放器自适应内容 */
    }
    
    /* 音频对比区域响应式设计 */
    .audio-comparison {
        flex-direction: column;
        gap: 20px;
    }
    
    .comparison-item {
        width: 300px;
    }
    .player-container {
        padding: 20px;
    }
    
    .album-cover {
        width: 100px;
        height: 100px;
    }
    
    .track-title {
        font-size: 16px;
    }
    
    .track-artist {
        font-size: 12px;
    }
    
    .control-buttons button {
        font-size: 20px;
    }
    
    .btn-play {
        font-size: 28px;
    }
    
    .nav {
        flex-wrap: wrap;
        justify-content: center;
        gap: 12px;
    }
    
    .hero-content {
        flex-direction: column;
        text-align: center;
    }
    
    .hero-text h1 {
        font-size: 36px;
    }
    
    .hero-text p {
        font-size: 18px;
        max-width: 100%;
    }
    
    .hero-actions {
        justify-content: center;
    }
    
    .stats-container {
        flex-wrap: wrap;
        gap: 20px;
        padding: 20px;
    }
    
    .stat-item:not(:last-child)::after {
        display: none;
    }
    
    .stat-value {
        font-size: 32px;
    }
    
    .workflow-steps {
        flex-direction: column;
    }
    
    .step-arrow {
        transform: rotate(90deg);
        margin: 20px 0;
    }
    
    .action-buttons {
        flex-direction: column;
        gap: 12px;
        width: 100%;
    }
    
    .primary-btn.large {
        width: 100%;
        padding: 14px 20px;
        font-size: 16px;
    }
    
    .secondary-btn {
        width: 100%;
        padding: 14px 20px;
    }
    
    .footer-content {
        flex-direction: column;
        gap: 30px;
        text-align: center;
    }
    
    .footer-links {
        flex-direction: column;
        gap: 30px;
        align-items: center;
    }
    
    .section-header h2 {
        font-size: 32px;
    }
    
    .cta-content h2 {
        font-size: 32px;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }
    
    .hero-text h1 {
        font-size: 28px;
    }
    
    .hero-text p {
        font-size: 16px;
    }
    
    .feature-card {
        padding: 30px 20px;
    }
    
    .upload-area {
        padding: 40px 20px;
    }
    
    .file-item {
        padding: 10px;
    }
    
    .file-name {
        font-size: 13px;
    }
    
    .file-size {
        font-size: 11px;
    }
    
    .section-header h2 {
        font-size: 28px;
    }
    
    .cta-content h2 {
        font-size: 28px;
    }
    
    .step-number {
        width: 60px;
        height: 60px;
        font-size: 20px;
    }
}

/* 打印样式 */
@media print {
    .header, .footer, .hero-actions, .upload-area, .batch-actions, .cta-section {
        display: none;
    }
    
    body {
        background-color: white;
        color: black;
    }
}

/* 音频波形容器样式 */
.audio-wave-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
    padding: 20px;
    border-radius: 15px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    width: 100%;
    max-width: 800px;
}

.audio-wave-container:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.15);
}



/* 音频波形图片样式 */
.audio-wave-gif {
    width: 100%;
    height: auto;
    border-radius: 10px;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease;
}

.audio-wave-container:hover .audio-wave-gif {
    transform: scale(1.02);
}

/* 音频波形说明文字样式 */
.audio-wave-caption {
    margin-top: 15px;
    font-size: 18px;
    font-weight: 600;
    color: #333;
    text-align: center;
    transition: color 0.3s ease;
}

.audio-wave-container:hover .audio-wave-caption {
    color: #4285f4;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .audio-wave-container {
        padding: 15px;
        margin-top: 20px;
    }
    
    .audio-wave-caption {
        font-size: 16px;
    }
}



/* 文字转语音功能样式 */
.text-to-speech-section {
    margin-top: 30px;
    padding: 20px;
    background-color: #ffffff;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}

.text-to-speech-section h4 {
    margin-top: 0;
    margin-bottom: 15px;
    color: #333333;
    font-size: 18px;
    font-weight: 600;
}

#text-to-speech-input {
    width: 100%;
    height: 100px;
    padding: 12px;
    border: 1px solid #e9ecef;
    border-radius: 8px;
    font-size: 14px;
    font-family: inherit;
    resize: vertical;
    transition: border-color 0.3s;
}

#text-to-speech-input:focus {
    outline: none;
    border-color: #4285f4;
    box-shadow: 0 0 0 3px rgba(66, 133, 244, 0.1);
}

.tts-params {
    margin: 15px 0;
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
}

.param-group {
    flex: 1;
    min-width: 150px;
}

.param-group label {
    display: block;
    margin-bottom: 5px;
    font-size: 14px;
    font-weight: 500;
    color: #6c757d;
}

.param-group select {
    width: 100%;
    padding: 8px 12px;
    border: 1px solid #e9ecef;
    border-radius: 6px;
    font-size: 14px;
    background-color: #ffffff;
    cursor: pointer;
    transition: border-color 0.3s;
}

.param-group select:focus {
    outline: none;
    border-color: #4285f4;
    box-shadow: 0 0 0 3px rgba(66, 133, 244, 0.1);
}

.param-group input[type="range"] {
    width: calc(100% - 40px);
    margin-right: 10px;
    vertical-align: middle;
}

.param-group span {
    display: inline-block;
    width: 30px;
    text-align: right;
    font-size: 14px;
    color: #6c757d;
}

.tts-btn {
    width: 100%;
    padding: 12px;
    background: linear-gradient(90deg, #4285f4, #34a853);
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
}

.tts-btn:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(66, 133, 244, 0.3);
}

.tts-btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

/* 下载按钮样式 */
.download-btn {
    margin-left: 10px;
    padding: 8px 16px;
    background-color: #34a853;
    color: white;
    border: none;
    border-radius: 6px;
    font-size: 14px;
    cursor: pointer;
    transition: all 0.3s;
}

.download-btn:hover {
    background-color: #2c8d46;
    transform: translateY(-1px);
    box-shadow: 0 2px 8px rgba(52, 168, 83, 0.3);
}

.download-btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

/* 响应式调整 */
@media (max-width: 768px) {
    .tts-params {
        flex-direction: column;
    }
    
    .param-group {
        min-width: 100%;
    }
    
    .param-group input[type="range"] {
        width: calc(100% - 50px);
    }
}

/* 音频播放器样式优化 */
.audio-player {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-top: 15px;
}

.audio-player audio {
    flex: 1;
    max-width: 300px;
}

@media (max-width: 768px) {
    .audio-player {
        flex-direction: column;
        align-items: stretch;
    }
    
    .audio-player audio {
        max-width: 100%;
        margin-bottom: 10px;
    }
    
    .audio-player button {
        width: 100%;
        margin-left: 0;
        margin-bottom: 5px;
    }
}

/* 重新处理按钮样式 */
.reprocess-btn {
    padding: 6px 12px;
    background-color: #ffc107;
    color: #333;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    font-size: 14px;
    font-weight: 500;
    transition: all 0.3s;
    display: flex;
    align-items: center;
    gap: 4px;
}

.reprocess-btn:hover {
    background-color: #e0a800;
    transform: translateY(-1px);
    box-shadow: 0 2px 8px rgba(255, 193, 7, 0.3);
}

/* 图标化按钮样式 */
.icon-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 8px 16px;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    font-size: 14px;
    font-weight: 500;
    transition: all 0.3s;
    gap: 8px;
}

.icon-btn svg {
    width: 16px;
    height: 16px;
}



/* 音频播放进度条样式 */
.audio-progress-container {
    width: 100%;
    height: 4px;
    background-color: #e9ecef;
    border-radius: 2px;
    margin: 8px 0;
    position: relative;
    cursor: pointer;
}

.audio-progress-bar {
    height: 100%;
    width: 0;
    background: linear-gradient(90deg, #4285f4, #34a853);
    border-radius: 2px;
    position: relative;
    transition: width 0.1s;
}

.audio-progress-bar::after {
    content: '';
    position: absolute;
    right: -6px;
    top: 50%;
    transform: translateY(-50%);
    width: 16px;
    height: 16px;
    background-color: white;
    border: 2px solid #4285f4;
    border-radius: 50%;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
    opacity: 0;
    transition: opacity 0.2s;
}

.audio-progress-container:hover .audio-progress-bar::after {
    opacity: 1;
}

/* 播放按钮样式 */
.play-btn {
    padding: 6px 12px;
    background-color: #4285f4;
    color: white;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    font-size: 14px;
    font-weight: 500;
    transition: all 0.3s;
    display: flex;
    align-items: center;
    gap: 4px;
}

.play-btn:hover {
    background-color: #3367d6;
    transform: translateY(-1px);
    box-shadow: 0 2px 8px rgba(66, 133, 244, 0.3);
}

.play-btn.paused svg:first-child {
    display: none;
}

.play-btn svg:last-child {
    display: none;
}

.play-btn.paused svg:last-child {
    display: block;
}

/* 文件项容器样式优化 */
.file-item {
    position: relative;
}

.file-audio-player {
    margin-top: 8px;
    padding-top: 8px;
    border-top: 1px solid #e9ecef;
}

.audio-time {
    display: flex;
    justify-content: space-between;
    font-size: 12px;
    color: #6c757d;
    margin-top: 4px;
}

/* 处理中状态的小加载动画 */
.processing-spinner-small {
    width: 20px;
    height: 20px;
    border: 2px solid #f3f3f3;
    border-top: 2px solid #4285f4;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* 下载按钮样式 */
.download-btn {
    padding: 6px 12px;
    background-color: #28a745;
    color: white;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    font-size: 14px;
    font-weight: 500;
    transition: all 0.3s;
    text-decoration: none;
    display: inline-block;
    text-align: center;
    min-width: 80px;
}

.download-btn:hover {
    background-color: #218838;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(40, 167, 69, 0.3);
}

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

/* 响应式设计 - 平板和手机 */
@media (max-width: 992px) {
    .use-cases-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .header {
        flex-direction: column;
        gap: 15px;
        padding: 15px 0;
    }
    
    /* 音频播放器响应式设计 */
    .audio-player {
        width: 300px;
        height: 250px;
    }
    
    /* 音频对比区域响应式设计 */
    .audio-comparison {
        flex-direction: column;
        gap: 20px;
    }
    
    .comparison-item {
        width: 300px;
    }
    .player-container {
        padding: 20px;
    }
    
    .album-cover {
        width: 100px;
        height: 100px;
    }
    
    .track-title {
        font-size: 16px;
    }
    
    .track-artist {
        font-size: 12px;
    }
    
    .control-buttons button {
        font-size: 20px;
    }
    
    .btn-play {
        font-size: 28px;
    }
    
    .nav {
        flex-wrap: wrap;
        justify-content: center;
        gap: 12px;
    }
    
    .hero-content {
        flex-direction: column;
        text-align: center;
    }
    
    .hero-text h1 {
        font-size: 36px;
    }
    
    .hero-text p {
        font-size: 18px;
        max-width: 100%;
    }
    
    .hero-actions {
        justify-content: center;
    }
    
    .stats-container {
        flex-wrap: wrap;
        gap: 20px;
        padding: 20px;
    }
    
    .stat-item:not(:last-child)::after {
        display: none;
    }
    
    .stat-value {
        font-size: 32px;
    }
    
    .workflow-steps {
        flex-direction: column;
    }
    
    .step-arrow {
        transform: rotate(90deg);
        margin: 20px 0;
    }
    
    .action-buttons {
        flex-direction: column;
        gap: 12px;
        width: 100%;
    }
    
    .primary-btn.large {
        width: 100%;
        padding: 14px 20px;
        font-size: 16px;
    }
    
    .secondary-btn {
        width: 100%;
        padding: 14px 20px;
    }
    
    .footer-content {
        flex-direction: column;
        gap: 30px;
        text-align: center;
    }
    
    .footer-links {
        flex-direction: column;
        gap: 30px;
        align-items: center;
    }
    
    .section-header h2 {
        font-size: 32px;
    }
    
    .cta-content h2 {
        font-size: 32px;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }
    
    .hero-text h1 {
        font-size: 28px;
    }
    
    .hero-text p {
        font-size: 16px;
    }
    
    .feature-card {
        padding: 30px 20px;
    }
    
    .upload-area {
        padding: 40px 20px;
    }
    
    .file-item {
        padding: 10px;
    }
    
    .file-name {
        font-size: 13px;
    }
    
    .file-size {
        font-size: 11px;
    }
    
    .section-header h2 {
        font-size: 28px;
    }
    
    .cta-content h2 {
        font-size: 28px;
    }
    
    .step-number {
        width: 60px;
        height: 60px;
        font-size: 20px;
    }
}

/* 打印样式 */
@media print {
    .header, .footer, .hero-actions, .upload-area, .batch-actions, .cta-section {
        display: none;
    }
    
    body {
        background-color: white;
        color: black;
    }
}

/* 音频波形容器样式 */
.audio-wave-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
    padding: 20px;
    border-radius: 15px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    width: 100%;
    max-width: 800px;
}

.audio-wave-container:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.15);
}

/* 音频波形图片样式 */
.audio-wave-gif {
    width: 100%;
    height: auto;
    border-radius: 10px;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease;
}

.audio-wave-container:hover .audio-wave-gif {
    transform: scale(1.02);
}

/* 音频波形说明文字样式 */
.audio-wave-caption {
    margin-top: 15px;
    font-size: 18px;
    font-weight: 600;
    color: #333;
    text-align: center;
    transition: color 0.3s ease;
}

.audio-wave-container:hover .audio-wave-caption {
    color: #4285f4;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .audio-wave-container {
        padding: 15px;
        margin-top: 20px;
    }
    
    .audio-wave-caption {
        font-size: 16px;
    }
}