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

:root {
    --primary: #6C5CE7;
    --secondary: #00CEC9;
    --accent: #FDCB6E;
    --dark: #2D3436;
    --light: #F8F9FA;
    --gradient: linear-gradient(135deg, #6C5CE7 0%, #A29BFE 100%);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    color: var(--dark);
    line-height: 1.6;
}

/* 主视觉区域 */
.hero {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 100px 5%;
    background: linear-gradient(135deg, #f5f3ff 0%, #fff 50%, #e8fffe 100%);
}

.hero-content {
    max-width: 600px;
    margin-bottom: 3rem;
}

.hero-content h1 {
    font-size: 3.5rem;
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 0.5rem;
}

.tagline {
    font-size: 1.5rem;
    color: var(--secondary);
    margin-bottom: 1.5rem;
    font-weight: 600;
}

.description {
    font-size: 1.1rem;
    color: #666;
    margin-bottom: 1.5rem;
    line-height: 1.8;
}

.trust-badges {
    display: flex;
    gap: 1.5rem;
    justify-content: center;
    font-size: 0.9rem;
    color: #888;
}

/* 编辑器模型 */
.editor-mockup {
    width: 100%;
    max-width: 1000px;
    background: linear-gradient(145deg, #1a1a2e, #16213e);
    border-radius: 30px;
    padding: 40px;
    box-shadow: 0 35px 70px rgba(0,0,0,0.3);
}

.timeline {
    background: #0f0f1a;
    border-radius: 18px;
    padding: 40px;
}

.track {
    height: 90px;
    margin-bottom: 20px;
    border-radius: 14px;
    display: flex;
    align-items: center;
    padding: 0 20px;
    gap: 16px;
}

.video-track {
    background: linear-gradient(90deg, rgba(108, 92, 231, 0.3), rgba(162, 155, 254, 0.3));
}

.audio-track {
    background: linear-gradient(90deg, rgba(0, 206, 201, 0.3), rgba(129, 236, 236, 0.3));
}

.clip {
    background: var(--gradient);
    padding: 20px 45px;
    border-radius: 10px;
    font-size: 2.2rem;
    animation: pulse 2s infinite;
}

.clip:nth-child(2) { animation-delay: 0.3s; }
.clip:nth-child(3) { animation-delay: 0.6s; }

@keyframes pulse {
    0%, 100% { opacity: 0.8; }
    50% { opacity: 1; }
}

.waveform {
    width: 100%;
    height: 55px;
    background: repeating-linear-gradient(90deg, var(--secondary) 0px, var(--secondary) 3px, transparent 3px, transparent 14px);
    border-radius: 6px;
    opacity: 0.7;
}

.beat-markers {
    display: flex;
    justify-content: space-around;
    padding: 18px 0;
}

.beat {
    width: 6px;
    height: 36px;
    background: var(--accent);
    border-radius: 3px;
    animation: beatPulse 0.5s infinite alternate;
}

.beat:nth-child(2) { animation-delay: 0.1s; }
.beat:nth-child(3) { animation-delay: 0.2s; }
.beat:nth-child(4) { animation-delay: 0.3s; }
.beat:nth-child(5) { animation-delay: 0.4s; }

@keyframes beatPulse {
    from { transform: scaleY(0.5); opacity: 0.5; }
    to { transform: scaleY(1); opacity: 1; }
}

.match-indicator {
    color: var(--accent);
    font-size: 1.4rem;
    text-align: center;
    margin-top: 20px;
}

/* 通用区块样式 */
section {
    padding: 80px 5%;
    text-align: center;
}

section h2 {
    font-size: 2rem;
    margin-bottom: 2.5rem;
    color: var(--dark);
}

/* 功能特色 */
.features {
    background: white;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 1.5rem;
    max-width: 900px;
    margin: 0 auto;
}

.feature-card {
    background: var(--light);
    padding: 2rem;
    border-radius: 15px;
    transition: transform 0.3s, box-shadow 0.3s;
}

.feature-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 15px 30px rgba(108, 92, 231, 0.15);
}

.feature-icon {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.feature-card h3 {
    font-size: 1.1rem;
    margin-bottom: 0.5rem;
}

.feature-card p {
    color: #666;
    font-size: 0.95rem;
}

/* 使用方式 */
.how-it-works {
    background: linear-gradient(135deg, #f5f3ff 0%, #e8fffe 100%);
}

.steps {
    display: flex;
    justify-content: center;
    gap: 3rem;
    flex-wrap: wrap;
    max-width: 800px;
    margin: 0 auto;
}

.step {
    flex: 1;
    min-width: 180px;
    max-width: 220px;
}

.step-number {
    width: 50px;
    height: 50px;
    background: var(--gradient);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.3rem;
    font-weight: bold;
    margin: 0 auto 1rem;
}

.step h3 {
    font-size: 1.1rem;
    margin-bottom: 0.5rem;
}

.step p {
    color: #666;
    font-size: 0.95rem;
}

/* 效率对比 */
.comparison {
    background: white;
}

.comparison-cards {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 2rem;
    flex-wrap: wrap;
    max-width: 800px;
    margin: 0 auto;
}

.comparison-card {
    background: var(--light);
    padding: 2rem;
    border-radius: 15px;
    min-width: 220px;
    flex: 1;
    max-width: 280px;
}

.comparison-card h3 {
    margin-bottom: 0.5rem;
}

.comparison-card .time {
    font-size: 2rem;
    font-weight: bold;
    margin-bottom: 1rem;
}

.comparison-card.before .time {
    color: #e17055;
}

.comparison-card.after .time {
    color: var(--secondary);
}

.comparison-card ul {
    list-style: none;
    text-align: left;
}

.comparison-card li {
    padding: 0.3rem 0;
    color: #666;
    font-size: 0.9rem;
}

.comparison-card li::before {
    content: "•";
    margin-right: 8px;
    color: var(--primary);
}

.vs {
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--primary);
}

/* 页脚 */
footer {
    background: linear-gradient(135deg, #2D3436 0%, #1a1a2e 100%);
    color: rgba(255,255,255,0.7);
    padding: 2.5rem 5%;
    text-align: center;
}

footer p {
    font-size: 0.85rem;
    letter-spacing: 0.3px;
}

footer a {
    color: rgba(255,255,255,0.8);
    text-decoration: none;
    transition: color 0.3s ease;
    border-bottom: 1px solid transparent;
}

footer a:hover {
    color: var(--secondary);
    border-bottom-color: var(--secondary);
}

footer .beian {
    margin-top: 0.5rem;
    font-size: 0.8rem;
}



/* 响应式 */
@media (max-width: 768px) {
    .hero-content h1 {
        font-size: 2.5rem;
    }
    
    .trust-badges {
        flex-direction: column;
        gap: 0.5rem;
    }
    
    .editor-mockup {
        max-width: 100%;
        padding: 15px;
    }
    
    .timeline {
        padding: 15px;
    }
    
    .track {
        height: 50px;
    }
    
    .clip {
        padding: 10px 20px;
        font-size: 1.2rem;
    }
    
    .steps {
        gap: 2rem;
    }
    
    .comparison-cards {
        flex-direction: column;
    }
    
    .vs {
        transform: rotate(90deg);
    }
}