/* ===== AI翻唱平台首页样式 ===== */

/* 基础重置 */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }

:root {
    --primary: #6366f1;
    --primary-light: #818cf8;
    --secondary: #ec4899;
    --accent: #06b6d4;
    --success: #10b981;
    --warning: #f59e0b;
    --dark-900: #030014;
    --dark-800: #0a0a1a;
    --dark-700: #13132a;
    --dark-600: #1e1e3f;
    --text-primary: #ffffff;
    --text-secondary: #b4b4c7;
    --text-muted: #6b6b80;
    --gradient-primary: linear-gradient(135deg, #667eea 0%, #764ba2 50%, #f093fb 100%);
    --gradient-secondary: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
}

html { scroll-behavior: smooth; }

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', sans-serif;
    background: var(--dark-900);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

a { text-decoration: none; color: inherit; transition: all 0.3s ease; }
.container { max-width: 1400px; margin: 0 auto; padding: 0 24px; }

/* ===== 动态背景 ===== */
.bg-wrapper {
    position: fixed;
    top: 0; left: 0;
    width: 100%; height: 100%;
    z-index: -1;
    overflow: hidden;
    background: var(--dark-900);
}

/* 渐变光球 */
.bg-gradient-1 {
    position: absolute;
    top: -20%; left: -10%;
    width: 60%; height: 60%;
    background: radial-gradient(circle, rgba(102, 126, 234, 0.18) 0%, transparent 70%);
    animation: moveGradient1 20s ease-in-out infinite;
    filter: blur(40px);
}

.bg-gradient-2 {
    position: absolute;
    bottom: -20%; right: -10%;
    width: 50%; height: 50%;
    background: radial-gradient(circle, rgba(236, 72, 153, 0.15) 0%, transparent 70%);
    animation: moveGradient2 25s ease-in-out infinite;
    filter: blur(40px);
}

.bg-gradient-3 {
    position: absolute;
    top: 40%; right: 20%;
    width: 40%; height: 40%;
    background: radial-gradient(circle, rgba(6, 182, 212, 0.12) 0%, transparent 70%);
    animation: moveGradient3 18s ease-in-out infinite;
    filter: blur(40px);
}

@keyframes moveGradient1 {
    0%, 100% { transform: translate(0, 0) scale(1) rotate(0deg); }
    25% { transform: translate(100px, 50px) scale(1.2) rotate(5deg); }
    50% { transform: translate(50px, 100px) scale(0.9) rotate(-5deg); }
    75% { transform: translate(-50px, 50px) scale(1.1) rotate(3deg); }
}
@keyframes moveGradient2 {
    0%, 100% { transform: translate(0, 0) scale(1) rotate(0deg); }
    25% { transform: translate(-80px, -40px) scale(1.15) rotate(-5deg); }
    50% { transform: translate(-40px, -80px) scale(0.85) rotate(5deg); }
    75% { transform: translate(40px, -40px) scale(1.1) rotate(-3deg); }
}
@keyframes moveGradient3 {
    0%, 100% { transform: translate(0, 0) scale(1); }
    33% { transform: translate(60px, -60px) scale(1.2); }
    66% { transform: translate(-30px, 30px) scale(0.8); }
}

/* 星星背景 - 增强版 */
.stars {
    position: absolute;
    width: 100%; height: 100%;
    background-image: 
        radial-gradient(2px 2px at 20px 30px, rgba(255,255,255,0.4), transparent),
        radial-gradient(2px 2px at 40px 70px, rgba(255,255,255,0.3), transparent),
        radial-gradient(1px 1px at 90px 40px, rgba(255,255,255,0.5), transparent),
        radial-gradient(2px 2px at 130px 80px, rgba(255,255,255,0.3), transparent),
        radial-gradient(1px 1px at 160px 120px, rgba(255,255,255,0.4), transparent),
        radial-gradient(3px 3px at 200px 150px, rgba(102, 126, 234, 0.6), transparent),
        radial-gradient(2px 2px at 250px 200px, rgba(236, 72, 153, 0.5), transparent),
        radial-gradient(1px 1px at 300px 100px, rgba(255,255,255,0.6), transparent),
        radial-gradient(2px 2px at 350px 250px, rgba(6, 182, 212, 0.5), transparent),
        radial-gradient(1px 1px at 50px 180px, rgba(255,255,255,0.3), transparent);
    background-repeat: repeat;
    background-size: 400px 300px;
    animation: twinkle 4s ease-in-out infinite, starsMove 60s linear infinite;
}
@keyframes twinkle { 
    0%, 100% { opacity: 1; } 
    50% { opacity: 0.4; } 
}
@keyframes starsMove {
    0% { transform: translateY(0); }
    100% { transform: translateY(-300px); }
}

/* 网格背景 */
.grid-overlay {
    position: absolute;
    width: 100%; height: 100%;
    background-image: linear-gradient(rgba(102, 126, 234, 0.03) 1px, transparent 1px),
                      linear-gradient(90deg, rgba(102, 126, 234, 0.03) 1px, transparent 1px);
    background-size: 80px 80px;
    animation: gridPulse 8s ease-in-out infinite;
}
@keyframes gridPulse {
    0%, 100% { opacity: 0.5; }
    50% { opacity: 1; }
}

/* 第四个渐变光球 */
.bg-gradient-4 {
    position: absolute;
    top: 60%; left: 50%;
    width: 35%; height: 35%;
    background: radial-gradient(circle, rgba(139, 92, 246, 0.12) 0%, transparent 70%);
    animation: moveGradient4 22s ease-in-out infinite;
    filter: blur(50px);
}
@keyframes moveGradient4 {
    0%, 100% { transform: translate(-50%, 0) scale(1); }
    50% { transform: translate(-30%, -50px) scale(1.3); }
}

/* 第二层星星 */
.stars-2 {
    background-size: 500px 400px;
    animation: twinkle 6s ease-in-out infinite reverse, starsMove 80s linear infinite reverse;
    opacity: 0.6;
}

/* ===== 音波脉冲效果 ===== */
.audio-waves {
    position: absolute;
    top: 50%;
    left: 20%;
    transform: translate(-50%, -50%);
    pointer-events: none;
}

.wave-circle {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 100px;
    height: 100px;
    border: 2px solid rgba(102, 126, 234, 0.3);
    border-radius: 50%;
    animation: waveExpand 4s ease-out infinite;
}

.wave-circle:nth-child(1) { animation-delay: 0s; }
.wave-circle:nth-child(2) { animation-delay: 1s; }
.wave-circle:nth-child(3) { animation-delay: 2s; }
.wave-circle:nth-child(4) { animation-delay: 3s; }

@keyframes waveExpand {
    0% {
        width: 100px;
        height: 100px;
        opacity: 0.8;
        border-color: rgba(102, 126, 234, 0.5);
    }
    50% {
        border-color: rgba(236, 72, 153, 0.3);
    }
    100% {
        width: 800px;
        height: 800px;
        opacity: 0;
        border-color: rgba(6, 182, 212, 0.1);
    }
}

/* ===== 漂浮音符 ===== */
.floating-notes {
    position: absolute;
    width: 100%;
    height: 100%;
    pointer-events: none;
    overflow: hidden;
}

.note {
    position: absolute;
    font-size: 24px;
    color: rgba(102, 126, 234, 0.4);
    animation: floatNote 15s ease-in-out infinite;
    text-shadow: 0 0 20px rgba(102, 126, 234, 0.5);
}

.note:nth-child(1) { left: 10%; top: 20%; animation-delay: 0s; font-size: 28px; color: rgba(102, 126, 234, 0.5); }
.note:nth-child(2) { left: 25%; top: 60%; animation-delay: -2s; font-size: 20px; color: rgba(236, 72, 153, 0.4); }
.note:nth-child(3) { left: 45%; top: 30%; animation-delay: -4s; font-size: 32px; color: rgba(6, 182, 212, 0.4); }
.note:nth-child(4) { left: 65%; top: 70%; animation-delay: -6s; font-size: 22px; color: rgba(139, 92, 246, 0.4); }
.note:nth-child(5) { left: 80%; top: 25%; animation-delay: -8s; font-size: 26px; color: rgba(236, 72, 153, 0.5); }
.note:nth-child(6) { left: 90%; top: 55%; animation-delay: -10s; font-size: 18px; color: rgba(102, 126, 234, 0.4); }
.note:nth-child(7) { left: 15%; top: 80%; animation-delay: -12s; font-size: 30px; color: rgba(6, 182, 212, 0.5); }
.note:nth-child(8) { left: 55%; top: 85%; animation-delay: -14s; font-size: 24px; color: rgba(139, 92, 246, 0.4); }

@keyframes floatNote {
    0%, 100% {
        transform: translateY(0) rotate(0deg) scale(1);
        opacity: 0.4;
    }
    25% {
        transform: translateY(-30px) rotate(10deg) scale(1.1);
        opacity: 0.7;
    }
    50% {
        transform: translateY(-60px) rotate(-5deg) scale(0.9);
        opacity: 0.5;
    }
    75% {
        transform: translateY(-30px) rotate(5deg) scale(1.05);
        opacity: 0.6;
    }
}

/* ===== 浮动光球 ===== */
.floating-orbs {
    position: absolute;
    width: 100%; height: 100%;
    pointer-events: none;
}

.orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(1px);
    animation: floatOrb 15s ease-in-out infinite;
}

.orb::before {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: 50%;
    background: inherit;
    filter: blur(20px);
    opacity: 0.5;
}

.orb-1 {
    width: 8px; height: 8px;
    background: radial-gradient(circle, rgba(102, 126, 234, 1), rgba(102, 126, 234, 0.3));
    top: 20%; left: 15%;
    animation-delay: 0s;
    animation-duration: 12s;
}

.orb-2 {
    width: 6px; height: 6px;
    background: radial-gradient(circle, rgba(236, 72, 153, 1), rgba(236, 72, 153, 0.3));
    top: 40%; right: 20%;
    animation-delay: -3s;
    animation-duration: 14s;
}

.orb-3 {
    width: 10px; height: 10px;
    background: radial-gradient(circle, rgba(6, 182, 212, 1), rgba(6, 182, 212, 0.3));
    bottom: 30%; left: 25%;
    animation-delay: -6s;
    animation-duration: 16s;
}

.orb-4 {
    width: 5px; height: 5px;
    background: radial-gradient(circle, rgba(139, 92, 246, 1), rgba(139, 92, 246, 0.3));
    top: 60%; right: 30%;
    animation-delay: -2s;
    animation-duration: 13s;
}

.orb-5 {
    width: 7px; height: 7px;
    background: radial-gradient(circle, rgba(251, 191, 36, 1), rgba(251, 191, 36, 0.3));
    top: 75%; left: 60%;
    animation-delay: -4s;
    animation-duration: 11s;
}

.orb-6 {
    width: 4px; height: 4px;
    background: radial-gradient(circle, rgba(16, 185, 129, 1), rgba(16, 185, 129, 0.3));
    top: 15%; right: 40%;
    animation-delay: -5s;
    animation-duration: 15s;
}

@keyframes floatOrb {
    0%, 100% { transform: translate(0, 0) scale(1); opacity: 0.8; }
    25% { transform: translate(30px, -40px) scale(1.2); opacity: 1; }
    50% { transform: translate(-20px, -80px) scale(0.8); opacity: 0.6; }
    75% { transform: translate(40px, -40px) scale(1.1); opacity: 0.9; }
}

/* ===== 光线扫描效果 ===== */
.light-beam {
    position: absolute;
    top: 0;
    left: -100%;
    width: 50%;
    height: 100%;
    background: linear-gradient(90deg, 
        transparent 0%, 
        rgba(102, 126, 234, 0.03) 40%,
        rgba(102, 126, 234, 0.08) 50%,
        rgba(102, 126, 234, 0.03) 60%,
        transparent 100%);
    animation: lightSweep 8s ease-in-out infinite;
    pointer-events: none;
}

.light-beam-2 {
    background: linear-gradient(90deg, 
        transparent 0%, 
        rgba(236, 72, 153, 0.02) 40%,
        rgba(236, 72, 153, 0.06) 50%,
        rgba(236, 72, 153, 0.02) 60%,
        transparent 100%);
    animation-delay: -4s;
    animation-duration: 10s;
}

@keyframes lightSweep {
    0% { left: -100%; }
    100% { left: 200%; }
}

/* ===== 圆环波纹效果 ===== */
.ripple-container {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    pointer-events: none;
}

.ripple {
    position: absolute;
    top: 50%; left: 50%;
    transform: translate(-50%, -50%);
    width: 600px;
    height: 600px;
    border: 1px solid rgba(102, 126, 234, 0.1);
    border-radius: 50%;
    animation: rippleExpand 6s ease-out infinite;
}

.ripple-2 {
    animation-delay: -2s;
    border-color: rgba(236, 72, 153, 0.08);
}

.ripple-3 {
    animation-delay: -4s;
    border-color: rgba(6, 182, 212, 0.08);
}

@keyframes rippleExpand {
    0% { width: 200px; height: 200px; opacity: 0.8; }
    100% { width: 1200px; height: 1200px; opacity: 0; }
}

/* ===== 导航栏 ===== */
.navbar {
    position: fixed;
    top: 0; left: 0;
    width: 100%;
    z-index: 1000;
    padding: 20px 0;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.navbar.scrolled {
    padding: 12px 0;
    background: rgba(3, 0, 20, 0.9);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(102, 126, 234, 0.1);
}

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

.nav-logo {
    display: flex;
    align-items: center;
    gap: 14px;
    font-size: 22px;
    font-weight: 700;
}

.nav-logo-icon {
    width: 50px; height: 50px;
    background: var(--gradient-primary);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    box-shadow: 0 10px 40px rgba(102, 126, 234, 0.4);
    position: relative;
    overflow: hidden;
}

.nav-logo-icon::after {
    content: '';
    position: absolute;
    top: -50%; left: -50%;
    width: 200%; height: 200%;
    background: linear-gradient(45deg, transparent 40%, rgba(255,255,255,0.2) 50%, transparent 60%);
    animation: shine 3s infinite;
}
@keyframes shine {
    0% { transform: translateX(-100%) rotate(45deg); }
    100% { transform: translateX(100%) rotate(45deg); }
}

.nav-links { display: flex; align-items: center; gap: 48px; }

.nav-link {
    color: var(--text-secondary);
    font-weight: 500;
    font-size: 15px;
    position: relative;
    padding: 8px 0;
}
.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0; left: 50%;
    transform: translateX(-50%);
    width: 0; height: 2px;
    background: var(--gradient-primary);
    border-radius: 2px;
    transition: width 0.3s ease;
}
.nav-link:hover { color: var(--text-primary); }
.nav-link:hover::after { width: 100%; }

.nav-buttons { display: flex; gap: 16px; }

/* ===== 按钮 ===== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 14px 32px;
    border-radius: 14px;
    font-size: 15px;
    font-weight: 600;
    border: none;
    cursor: pointer;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background: var(--gradient-primary);
    color: white;
    box-shadow: 0 10px 40px rgba(102, 126, 234, 0.4);
}
.btn-primary:hover {
    transform: translateY(-4px) scale(1.02);
    box-shadow: 0 20px 50px rgba(102, 126, 234, 0.5);
}
.btn-primary::before {
    content: '';
    position: absolute;
    top: 0; left: -100%;
    width: 100%; height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.3), transparent);
    transition: left 0.6s ease;
}
.btn-primary:hover::before { left: 100%; }

.btn-outline {
    background: transparent;
    color: var(--text-primary);
    border: 2px solid rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(10px);
}
.btn-outline:hover {
    background: rgba(255, 255, 255, 0.05);
    border-color: rgba(255, 255, 255, 0.3);
    transform: translateY(-4px);
}

.btn-lg { padding: 20px 48px; font-size: 17px; border-radius: 18px; }
.btn-block { width: 100%; }

.btn-glow {
    animation: btnGlow 2s ease-in-out infinite alternate;
}
@keyframes btnGlow {
    from { box-shadow: 0 10px 40px rgba(102, 126, 234, 0.4); }
    to { box-shadow: 0 10px 60px rgba(102, 126, 234, 0.6), 0 0 30px rgba(236, 72, 153, 0.3); }
}

/* ===== Hero区域 ===== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 140px 0 100px;
    position: relative;
}

.hero-grid {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 80px;
    align-items: center;
}

.hero-content { position: relative; z-index: 2; }

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    padding: 12px 24px;
    background: rgba(102, 126, 234, 0.1);
    border: 1px solid rgba(102, 126, 234, 0.2);
    border-radius: 100px;
    font-size: 14px;
    color: var(--primary-light);
    margin-bottom: 32px;
}

.badge-dot {
    width: 8px; height: 8px;
    background: var(--success);
    border-radius: 50%;
    animation: pulse 2s infinite;
}
@keyframes pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.5; transform: scale(0.8); }
}

.hero-title {
    font-size: 68px;
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 28px;
    letter-spacing: -2px;
}

.text-gradient {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-desc {
    font-size: 20px;
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 48px;
    max-width: 560px;
}

.hero-buttons {
    display: flex;
    gap: 20px;
    margin-bottom: 64px;
    flex-wrap: wrap;
}

.hero-stats { display: flex; gap: 56px; }

.stat-value {
    font-size: 48px;
    font-weight: 800;
    background: var(--gradient-secondary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
}
.stat-label { color: var(--text-muted); font-size: 14px; margin-top: 8px; }

/* Hero 视觉卡片 */
.hero-visual {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
}

.visual-card {
    position: relative;
    width: 100%;
    max-width: 480px;
    background: linear-gradient(165deg, rgba(30, 30, 63, 0.8), rgba(19, 19, 42, 0.9));
    border-radius: 32px;
    padding: 36px;
    border: 1px solid rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(20px);
    box-shadow: 0 40px 80px rgba(0, 0, 0, 0.5);
}
.visual-card::before {
    content: '';
    position: absolute;
    inset: -2px;
    background: var(--gradient-primary);
    border-radius: 34px;
    z-index: -1;
    opacity: 0.3;
    filter: blur(30px);
}

.card-header {
    display: flex;
    align-items: center;
    gap: 18px;
    margin-bottom: 28px;
    padding-bottom: 24px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.card-avatar {
    width: 72px; height: 72px;
    border-radius: 50%;
    background: var(--gradient-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 32px;
    box-shadow: 0 12px 40px rgba(102, 126, 234, 0.4);
    position: relative;
}
.card-avatar::after {
    content: '';
    position: absolute;
    inset: -4px;
    border: 2px solid rgba(102, 126, 234, 0.3);
    border-radius: 50%;
    animation: rotate 10s linear infinite;
}
@keyframes rotate { from { transform: rotate(0deg); } to { transform: rotate(360deg); } }

.card-title { font-size: 20px; font-weight: 700; margin-bottom: 6px; }
.card-subtitle { color: var(--text-muted); font-size: 14px; }

/* 波形动画 */
.waveform {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 4px;
    height: 80px;
    margin-bottom: 28px;
    padding: 20px;
    background: rgba(0, 0, 0, 0.3);
    border-radius: 20px;
}

.wave-bar {
    width: 6px; height: 20px;
    background: var(--gradient-primary);
    border-radius: 4px;
    animation: wave 1.2s ease-in-out infinite;
}
.wave-bar:nth-child(1) { animation-delay: 0s; }
.wave-bar:nth-child(2) { animation-delay: 0.1s; }
.wave-bar:nth-child(3) { animation-delay: 0.2s; }
.wave-bar:nth-child(4) { animation-delay: 0.3s; }
.wave-bar:nth-child(5) { animation-delay: 0.4s; }
.wave-bar:nth-child(6) { animation-delay: 0.5s; }
.wave-bar:nth-child(7) { animation-delay: 0.6s; }
.wave-bar:nth-child(8) { animation-delay: 0.7s; }
.wave-bar:nth-child(9) { animation-delay: 0.6s; }
.wave-bar:nth-child(10) { animation-delay: 0.5s; }
.wave-bar:nth-child(11) { animation-delay: 0.4s; }
.wave-bar:nth-child(12) { animation-delay: 0.3s; }
.wave-bar:nth-child(13) { animation-delay: 0.2s; }
.wave-bar:nth-child(14) { animation-delay: 0.1s; }
.wave-bar:nth-child(15) { animation-delay: 0s; }
@keyframes wave {
    0%, 100% { height: 20px; opacity: 0.5; }
    50% { height: 60px; opacity: 1; }
}

.card-progress { margin-bottom: 20px; }
.progress-header { display: flex; justify-content: space-between; margin-bottom: 12px; font-size: 14px; }
.progress-label { color: var(--text-secondary); }
.progress-value { color: var(--success); font-weight: 600; }
.progress-bar { height: 8px; background: rgba(255, 255, 255, 0.1); border-radius: 10px; overflow: hidden; }
.progress-fill {
    height: 100%; width: 75%;
    background: var(--gradient-secondary);
    border-radius: 10px;
    animation: progressAnim 2s ease-out;
}
@keyframes progressAnim { from { width: 0; } to { width: 75%; } }

.card-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}
.card-status { display: flex; align-items: center; gap: 10px; color: var(--success); font-weight: 600; }
.status-icon { width: 12px; height: 12px; background: var(--success); border-radius: 50%; animation: pulse 2s infinite; }
.card-time { color: var(--text-muted); font-size: 14px; }

/* 浮动元素 */
.floating-element {
    position: absolute;
    background: linear-gradient(165deg, rgba(30, 30, 63, 0.9), rgba(19, 19, 42, 0.95));
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: 20px;
    padding: 16px 24px;
    backdrop-filter: blur(20px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
    display: flex;
    align-items: center;
    gap: 14px;
    animation: floatElement 6s ease-in-out infinite;
}
.floating-element-1 { top: 0; right: -40px; animation-delay: 0s; }
.floating-element-2 { bottom: 40px; left: -60px; animation-delay: -3s; }
@keyframes floatElement { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-15px); } }

.float-icon {
    width: 48px; height: 48px;
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 22px;
}
.float-icon.purple { background: linear-gradient(135deg, rgba(102, 126, 234, 0.2), rgba(118, 75, 162, 0.2)); color: var(--primary-light); }
.float-icon.pink { background: linear-gradient(135deg, rgba(236, 72, 153, 0.2), rgba(240, 147, 251, 0.2)); color: var(--secondary); }
.float-text { font-size: 14px; }
.float-title { font-weight: 600; margin-bottom: 2px; }
.float-subtitle { color: var(--text-muted); font-size: 12px; }

/* ===== 通用区域样式 ===== */
.section-header { text-align: center; margin-bottom: 80px; }
.section-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 20px;
    background: rgba(102, 126, 234, 0.1);
    border: 1px solid rgba(102, 126, 234, 0.2);
    border-radius: 100px;
    font-size: 14px;
    color: var(--primary-light);
    margin-bottom: 24px;
}
.section-title { font-size: 52px; font-weight: 800; margin-bottom: 20px; letter-spacing: -1px; }
.section-desc { font-size: 18px; color: var(--text-secondary); max-width: 600px; margin: 0 auto; }

/* ===== 功能特性 ===== */
.features { padding: 120px 0; position: relative; }
.features-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px; }

.feature-card {
    background: linear-gradient(165deg, rgba(30, 30, 63, 0.6), rgba(19, 19, 42, 0.8));
    border: 1px solid rgba(255, 255, 255, 0.03);
    border-radius: 28px;
    padding: 40px;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}
.feature-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 2px;
    background: var(--gradient-primary);
    opacity: 0;
    transition: opacity 0.4s ease;
}
.feature-card:hover {
    transform: translateY(-12px);
    border-color: rgba(102, 126, 234, 0.2);
    box-shadow: 0 30px 60px rgba(0, 0, 0, 0.4);
}
.feature-card:hover::before { opacity: 1; }

.feature-icon {
    width: 80px; height: 80px;
    border-radius: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 36px;
    margin-bottom: 28px;
}
.feature-icon.gradient-1 { background: linear-gradient(135deg, rgba(102, 126, 234, 0.15), rgba(118, 75, 162, 0.15)); color: var(--primary-light); }
.feature-icon.gradient-2 { background: linear-gradient(135deg, rgba(79, 172, 254, 0.15), rgba(0, 242, 254, 0.15)); color: var(--accent); }
.feature-icon.gradient-3 { background: linear-gradient(135deg, rgba(236, 72, 153, 0.15), rgba(240, 147, 251, 0.15)); color: var(--secondary); }
.feature-icon.gradient-4 { background: linear-gradient(135deg, rgba(16, 185, 129, 0.15), rgba(52, 211, 153, 0.15)); color: var(--success); }
.feature-icon.gradient-5 { background: linear-gradient(135deg, rgba(245, 158, 11, 0.15), rgba(251, 191, 36, 0.15)); color: var(--warning); }
.feature-icon.gradient-6 { background: linear-gradient(135deg, rgba(139, 92, 246, 0.15), rgba(192, 132, 252, 0.15)); color: #a78bfa; }

.feature-title { font-size: 24px; font-weight: 700; margin-bottom: 16px; }
.feature-desc { color: var(--text-secondary); font-size: 16px; line-height: 1.7; }

/* ===== 使用流程 ===== */
.process { padding: 120px 0; background: linear-gradient(180deg, transparent, rgba(102, 126, 234, 0.03), transparent); }
.process-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; position: relative; }
.process-grid::before {
    content: '';
    position: absolute;
    top: 60px;
    left: 12.5%; right: 12.5%;
    height: 2px;
    background: linear-gradient(90deg, transparent, rgba(102, 126, 234, 0.3), rgba(236, 72, 153, 0.3), transparent);
}

.process-card { text-align: center; padding: 40px 24px; position: relative; }
.process-number {
    width: 56px; height: 56px;
    margin: 0 auto 28px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    font-weight: 800;
    position: relative;
    z-index: 1;
    box-shadow: 0 10px 40px rgba(102, 126, 234, 0.4);
}
.process-icon { font-size: 48px; margin-bottom: 20px; }
.process-title { font-size: 20px; font-weight: 700; margin-bottom: 12px; }
.process-desc { color: var(--text-secondary); font-size: 15px; }

/* ===== 音色展示 ===== */
.voices { padding: 120px 0; }
.voices-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }

.voice-card {
    background: linear-gradient(165deg, rgba(30, 30, 63, 0.6), rgba(19, 19, 42, 0.8));
    border: 1px solid rgba(255, 255, 255, 0.03);
    border-radius: 24px;
    padding: 28px;
    text-align: center;
    transition: all 0.4s ease;
    cursor: pointer;
}
.voice-card:hover {
    transform: translateY(-8px) scale(1.02);
    border-color: rgba(102, 126, 234, 0.3);
    box-shadow: 0 25px 50px rgba(0, 0, 0, 0.4);
}

.voice-avatar {
    width: 100px; height: 100px;
    margin: 0 auto 20px;
    border-radius: 50%;
    background: var(--gradient-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 48px;
    position: relative;
}
.voice-avatar::after {
    content: '';
    position: absolute;
    inset: -6px;
    border: 2px dashed rgba(102, 126, 234, 0.3);
    border-radius: 50%;
}
.voice-name { font-size: 18px; font-weight: 700; margin-bottom: 8px; }
.voice-type { color: var(--text-muted); font-size: 14px; margin-bottom: 16px; }
.voice-tags { display: flex; flex-wrap: wrap; gap: 8px; justify-content: center; }
.voice-tag { padding: 6px 14px; background: rgba(102, 126, 234, 0.1); border-radius: 20px; font-size: 12px; color: var(--primary-light); }

/* ===== 价格区域 ===== */
.pricing { padding: 120px 0; background: linear-gradient(180deg, transparent, rgba(102, 126, 234, 0.03), transparent); }
.pricing-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px; max-width: 1100px; margin: 0 auto; }

.pricing-card {
    background: linear-gradient(165deg, rgba(30, 30, 63, 0.6), rgba(19, 19, 42, 0.8));
    border: 1px solid rgba(255, 255, 255, 0.03);
    border-radius: 32px;
    padding: 48px 40px;
    text-align: center;
    transition: all 0.4s ease;
    position: relative;
}
.pricing-card.popular {
    border-color: rgba(102, 126, 234, 0.3);
    transform: scale(1.05);
}
.pricing-card.popular::before {
    content: '';
    position: absolute;
    inset: -2px;
    background: var(--gradient-primary);
    border-radius: 34px;
    z-index: -1;
    opacity: 0.2;
    filter: blur(20px);
}

.pricing-badge {
    position: absolute;
    top: -14px; left: 50%;
    transform: translateX(-50%);
    padding: 8px 24px;
    background: var(--gradient-primary);
    border-radius: 20px;
    font-size: 13px;
    font-weight: 600;
}
.pricing-name { font-size: 24px; font-weight: 700; margin-bottom: 12px; }
.pricing-desc { color: var(--text-muted); font-size: 14px; margin-bottom: 32px; }
.pricing-price { margin-bottom: 32px; }
.price-value { font-size: 56px; font-weight: 800; }
.price-currency { font-size: 24px; vertical-align: top; }
.price-period { color: var(--text-muted); font-size: 14px; }

.pricing-features { list-style: none; margin-bottom: 36px; text-align: left; }
.pricing-features li {
    padding: 12px 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.03);
    display: flex;
    align-items: center;
    gap: 12px;
    color: var(--text-secondary);
}
.pricing-features li:last-child { border-bottom: none; }
.pricing-features i { color: var(--success); }

/* ===== CTA区域 ===== */
.cta { padding: 120px 0; position: relative; }
.cta-box {
    background: linear-gradient(165deg, rgba(30, 30, 63, 0.8), rgba(19, 19, 42, 0.9));
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: 40px;
    padding: 80px;
    text-align: center;
    position: relative;
    overflow: hidden;
}
.cta-box::before {
    content: '';
    position: absolute;
    top: -50%; left: -50%;
    width: 200%; height: 200%;
    background: radial-gradient(circle at center, rgba(102, 126, 234, 0.1) 0%, transparent 50%);
    animation: rotateBg 20s linear infinite;
}
@keyframes rotateBg { from { transform: rotate(0deg); } to { transform: rotate(360deg); } }

.cta-content { position: relative; z-index: 1; }
.cta-title { font-size: 48px; font-weight: 800; margin-bottom: 20px; }
.cta-desc { font-size: 18px; color: var(--text-secondary); margin-bottom: 40px; max-width: 600px; margin-left: auto; margin-right: auto; }
.cta-buttons { display: flex; gap: 20px; justify-content: center; }

/* ===== 页脚 ===== */
.footer { padding: 80px 0 40px; border-top: 1px solid rgba(255, 255, 255, 0.03); }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 60px; margin-bottom: 60px; }
.footer-brand { max-width: 320px; }
.footer-logo { display: flex; align-items: center; gap: 14px; font-size: 22px; font-weight: 700; margin-bottom: 20px; }
.footer-logo-icon { width: 48px; height: 48px; background: var(--gradient-primary); border-radius: 14px; display: flex; align-items: center; justify-content: center; font-size: 22px; }
.footer-desc { color: var(--text-secondary); font-size: 15px; line-height: 1.8; margin-bottom: 24px; }
.footer-social { display: flex; gap: 12px; }
.social-link {
    width: 44px; height: 44px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    color: var(--text-secondary);
    transition: all 0.3s ease;
}
.social-link:hover { background: var(--gradient-primary); color: white; transform: translateY(-4px); }

.footer-title { font-size: 16px; font-weight: 700; margin-bottom: 24px; }
.footer-links { list-style: none; }
.footer-links li { margin-bottom: 14px; }
.footer-links a { color: var(--text-secondary); font-size: 15px; transition: all 0.3s ease; }
.footer-links a:hover { color: var(--text-primary); padding-left: 8px; }

.footer-bottom { padding-top: 40px; border-top: 1px solid rgba(255, 255, 255, 0.03); display: flex; justify-content: space-between; align-items: center; }
.footer-copyright { color: var(--text-muted); font-size: 14px; }
.footer-legal { display: flex; gap: 32px; }
.footer-legal a { color: var(--text-muted); font-size: 14px; }
.footer-legal a:hover { color: var(--text-primary); }

/* ===== 响应式 ===== */
@media (max-width: 1200px) {
    .hero-grid { grid-template-columns: 1fr; gap: 60px; }
    .hero-visual { order: -1; }
    .hero-title { font-size: 52px; }
    .features-grid { grid-template-columns: repeat(2, 1fr); }
    .process-grid { grid-template-columns: repeat(2, 1fr); }
    .process-grid::before { display: none; }
    .voices-grid { grid-template-columns: repeat(2, 1fr); }
    .pricing-grid { grid-template-columns: 1fr; max-width: 400px; }
    .pricing-card.popular { transform: none; }
    .footer-grid { grid-template-columns: repeat(2, 1fr); gap: 40px; }
}

@media (max-width: 768px) {
    .nav-links { display: none; }
    .hero { padding: 120px 0 60px; }
    .hero-title { font-size: 36px; letter-spacing: -1px; }
    .hero-desc { font-size: 16px; }
    .hero-buttons { flex-direction: column; }
    .hero-stats { flex-wrap: wrap; gap: 32px; }
    .stat-value { font-size: 36px; }
    .section-title { font-size: 32px; }
    .features-grid, .process-grid, .voices-grid { grid-template-columns: 1fr; }
    .cta-box { padding: 48px 24px; }
    .cta-title { font-size: 32px; }
    .cta-buttons { flex-direction: column; }
    .footer-grid { grid-template-columns: 1fr; }
    .footer-bottom { flex-direction: column; gap: 20px; text-align: center; }
    .floating-element { display: none; }
}