/* 基础样式重置 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Helvetica Neue', Arial, sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    color: #333;
    line-height: 1.6;
}

.container {
    max-width: 800px;
    margin: 0 auto;
    padding: 20px;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* 头部样式 */
.header {
    text-align: center;
    margin-bottom: 40px;
    color: white;
}

.header h1 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 8px;
    text-shadow: 0 2px 4px rgba(0,0,0,0.3);
}

.header h1 i {
    margin-right: 12px;
    color: #ffd700;
}

.header p {
    font-size: 1.1rem;
    opacity: 0.9;
    text-shadow: 0 1px 2px rgba(0,0,0,0.3);
}

/* 主内容区域 */
.main-content {
    flex: 1;
    background: rgba(255, 255, 255, 0.95);
    border-radius: 20px;
    padding: 40px;
    box-shadow: 0 20px 40px rgba(0,0,0,0.1);
    backdrop-filter: blur(10px);
}

/* 输入区域 */
.input-section {
    margin-bottom: 30px;
}

.input-group {
    display: flex;
    gap: 12px;
    margin-bottom: 12px;
}

.url-input {
    flex: 1;
    padding: 16px 20px;
    border: 2px solid #e1e5e9;
    border-radius: 12px;
    font-size: 16px;
    transition: all 0.3s ease;
    background: #fff;
}

.url-input:focus {
    outline: none;
    border-color: #667eea;
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

.parse-btn {
    padding: 16px 24px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border: none;
    border-radius: 12px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 8px;
    min-width: 120px;
    justify-content: center;
}

.parse-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(102, 126, 234, 0.3);
}

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

.parse-btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

.tips {
    color: #666;
    font-size: 14px;
    display: flex;
    align-items: center;
    gap: 6px;
}

.tips i {
    color: #667eea;
}

/* 加载指示器 */
.loading-indicator {
    text-align: center;
    padding: 40px;
    color: #666;
}

.spinner {
    width: 40px;
    height: 40px;
    border: 4px solid #f3f3f3;
    border-top: 4px solid #667eea;
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto 16px;
}

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

/* 错误消息 */
.error-message {
    background: #fee;
    border: 1px solid #fcc;
    border-radius: 12px;
    padding: 16px;
    color: #c33;
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 20px;
}

.error-message i {
    font-size: 18px;
}

/* 结果区域 */
.result-section {
    animation: slideIn 0.5s ease-out;
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.video-info {
    border: 1px solid #e1e5e9;
    border-radius: 16px;
    overflow: hidden;
    background: #fff;
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
}

.video-header {
    padding: 20px;
    background: #f8f9fa;
    border-bottom: 1px solid #e1e5e9;
}

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

.avatar {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    object-fit: cover;
    border: 2px solid #fff;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

.author-details h3 {
    font-size: 16px;
    font-weight: 600;
    color: #333;
    margin-bottom: 2px;
}

.uid {
    font-size: 14px;
    color: #666;
}

.video-content {
    padding: 20px;
}

.video-preview {
    position: relative;
    border-radius: 12px;
    overflow: hidden;
    margin-bottom: 20px;
    background: #000;
}

/* 视频播放器样式 */
.video-player {
    width: 100%;
    height: 300px;
    object-fit: contain;
    background: #000;
    border-radius: 12px;
}

/* 封面容器 */
.cover-container {
    position: relative;
}

.cover-image {
    width: 100%;
    height: 300px;
    object-fit: cover;
    display: block;
}

.play-overlay {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 60px;
    height: 60px;
    background: rgba(0,0,0,0.7);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 20px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.play-overlay:hover {
    background: rgba(0,0,0,0.8);
    transform: translate(-50%, -50%) scale(1.1);
}

/* 视频加载状态 */
.video-loading {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.8);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: white;
    z-index: 10;
}

.loading-spinner {
    width: 40px;
    height: 40px;
    border: 3px solid rgba(255,255,255,0.3);
    border-top: 3px solid #fff;
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin-bottom: 12px;
}

.video-loading p {
    font-size: 14px;
    margin: 0;
}

.title {
    font-size: 20px;
    font-weight: 600;
    color: #333;
    margin-bottom: 20px;
    line-height: 1.4;
}

/* 视频元信息 */
.video-meta {
    background: #f8f9fa;
    border-radius: 8px;
    padding: 16px;
    margin-bottom: 20px;
    border: 1px solid #e1e5e9;
}

.meta-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 8px;
}

.meta-item:last-child {
    margin-bottom: 0;
}

.meta-label {
    font-weight: 500;
    color: #666;
    font-size: 14px;
}

.meta-item span:last-child {
    font-weight: 600;
    color: #333;
    font-size: 14px;
}

.download-section h4 {
    color: #333;
    margin-bottom: 16px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.download-options {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
}

.download-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 20px;
    text-decoration: none;
    border: none;
    border-radius: 10px;
    font-weight: 500;
    transition: all 0.3s ease;
    font-size: 14px;
    cursor: pointer;
    font-family: inherit;
}

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

.video-btn {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
}

.music-btn {
    background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    color: white;
}

.cover-btn {
    background: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
    color: white;
}

.download-btn:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0,0,0,0.15);
}

.download-btn:active:not(:disabled) {
    transform: translateY(0);
}

/* 隐藏类 */
.hidden {
    display: none !important;
}

/* 页脚 */
.footer {
    text-align: center;
    padding: 20px;
    color: rgba(255,255,255,0.8);
    font-size: 14px;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .container {
        padding: 10px;
    }
    
    .main-content {
        padding: 20px;
        border-radius: 16px;
    }
    
    .header h1 {
        font-size: 2rem;
    }
    
    .input-group {
        flex-direction: column;
    }
    
    .parse-btn {
        width: 100%;
    }
    
    .download-options {
        flex-direction: column;
    }
    
    .download-btn {
        width: 100%;
        justify-content: center;
    }
    
    .cover-image,
    .video-player {
        height: 200px;
    }
    
    .video-meta {
        padding: 12px;
    }
    
    .meta-item {
        flex-direction: column;
        align-items: flex-start;
        gap: 4px;
    }
} 

/* 视频预览消息 */
.video-preview-message {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: rgba(255, 255, 255, 0.95);
    border-radius: 12px;
    padding: 24px;
    text-align: center;
    box-shadow: 0 8px 32px rgba(0,0,0,0.1);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255,255,255,0.2);
    max-width: 300px;
    width: 90%;
}

.preview-message-content i {
    font-size: 32px;
    color: #667eea;
    margin-bottom: 12px;
    display: block;
}

.preview-message-content p {
    color: #666;
    margin-bottom: 20px;
    font-size: 16px;
    line-height: 1.4;
}

.preview-actions {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.preview-btn {
    padding: 12px 16px;
    border: none;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    font-family: inherit;
}

.preview-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0,0,0,0.15);
}

@media (min-width: 480px) {
    .preview-actions {
        flex-direction: row;
    }
    
    .video-preview-message {
        max-width: 400px;
    }
}