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

:root {
    /* Color Palette */
    --primary-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --secondary-gradient: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    --accent-gradient: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
    --gold-gradient: linear-gradient(135deg, #f6d365 0%, #fda085 100%);
    
    --bg-dark: #0f0c29;
    --bg-gradient: linear-gradient(135deg, #0f0c29 0%, #302b63 50%, #24243e 100%);
    
    --text-primary: #ffffff;
    --text-secondary: #e0e0e0;
    --text-muted: #a0a0a0;
    
    --card-bg: rgba(255, 255, 255, 0.05);
    --card-border: rgba(255, 255, 255, 0.1);
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-xxl: 4rem;
    
    /* Border Radius */
    --radius-sm: 8px;
    --radius-md: 16px;
    --radius-lg: 24px;
    --radius-xl: 32px;
    
    /* Shadows */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.2);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.3);
    --shadow-glow: 0 0 40px rgba(102, 126, 234, 0.4);
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
}

body {
    font-family: 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background: var(--bg-gradient);
    background-attachment: fixed;
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    min-height: 100vh;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* Background Animation */
.bg-animation {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    pointer-events: none;
    overflow: hidden;
}

.bubble {
    position: absolute;
    bottom: -100px;
    background: radial-gradient(circle, rgba(102, 126, 234, 0.2) 0%, rgba(102, 126, 234, 0) 70%);
    border-radius: 50%;
    animation: rise 15s infinite ease-in;
}

.bubble:nth-child(1) {
    width: 80px;
    height: 80px;
    left: 10%;
    animation-delay: 0s;
    animation-duration: 12s;
}

.bubble:nth-child(2) {
    width: 120px;
    height: 120px;
    left: 25%;
    animation-delay: 2s;
    animation-duration: 15s;
}

.bubble:nth-child(3) {
    width: 60px;
    height: 60px;
    left: 50%;
    animation-delay: 4s;
    animation-duration: 10s;
}

.bubble:nth-child(4) {
    width: 100px;
    height: 100px;
    left: 70%;
    animation-delay: 1s;
    animation-duration: 13s;
}

.bubble:nth-child(5) {
    width: 90px;
    height: 90px;
    left: 85%;
    animation-delay: 3s;
    animation-duration: 14s;
}

.bubble:nth-child(6) {
    width: 70px;
    height: 70px;
    left: 40%;
    animation-delay: 5s;
    animation-duration: 11s;
}

@keyframes rise {
    0% {
        bottom: -100px;
        transform: translateX(0) scale(1);
        opacity: 0;
    }
    10% {
        opacity: 0.3;
    }
    90% {
        opacity: 0.3;
    }
    100% {
        bottom: 110vh;
        transform: translateX(100px) scale(1.2);
        opacity: 0;
    }
}

/* Header */
.header {
    position: relative;
    z-index: 10;
    padding: var(--spacing-md) 0;
}

.logo-wrapper {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    position: relative;
}

.logo-glow {
    position: absolute;
    width: 100%;
    height: 100%;
    background: var(--primary-gradient);
    filter: blur(30px);
    opacity: 0.3;
    animation: pulse 3s ease-in-out infinite;
}

.logo {
    font-size: 2rem;
    font-weight: 900;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    position: relative;
    z-index: 1;
    letter-spacing: 2px;
}

.logo-badge {
    background: var(--gold-gradient);
    color: #fff;
    padding: 0.25rem 0.75rem;
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    font-weight: 700;
    position: relative;
    z-index: 1;
    box-shadow: var(--shadow-md);
}

@keyframes pulse {
    0%, 100% {
        opacity: 0.3;
        transform: scale(1);
    }
    50% {
        opacity: 0.5;
        transform: scale(1.1);
    }
}

/* Hero Section */
.hero {
    position: relative;
    z-index: 1;
    padding: var(--spacing-lg) 0 var(--spacing-xxl);
}

/* Promotional Image */
.promo-image-wrapper {
    position: relative;
    max-width: 600px;
    margin: 0 auto var(--spacing-xl);
    border-radius: var(--radius-xl);
    overflow: hidden;
}

.promo-glow {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 80%;
    height: 80%;
    background: var(--accent-gradient);
    filter: blur(60px);
    opacity: 0.4;
    animation: pulse 4s ease-in-out infinite;
}

.promo-image {
    width: 100%;
    height: auto;
    display: block;
    position: relative;
    z-index: 1;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    transition: transform var(--transition-normal);
}

.promo-image:hover {
    transform: scale(1.02);
}

/* Benefits Highlight */
.benefits-highlight {
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

.benefit-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    background: var(--secondary-gradient);
    padding: 0.5rem 1.5rem;
    border-radius: var(--radius-lg);
    margin-bottom: var(--spacing-md);
    box-shadow: var(--shadow-md);
    animation: bounce 2s ease-in-out infinite;
}

.badge-icon {
    font-size: 1.5rem;
}

.badge-text {
    font-weight: 700;
    font-size: 1rem;
}

@keyframes bounce {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-10px);
    }
}

.benefits-title {
    font-size: 2rem;
    font-weight: 900;
    margin-bottom: var(--spacing-lg);
    background: linear-gradient(135deg, #fff 0%, #f0f0f0 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.benefits-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-xl);
}

.benefit-item {
    background: var(--card-bg);
    backdrop-filter: blur(10px);
    border: 1px solid var(--card-border);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    transition: all var(--transition-normal);
}

.benefit-item:hover {
    transform: translateY(-5px);
    background: rgba(255, 255, 255, 0.1);
    box-shadow: var(--shadow-glow);
}

.benefit-icon {
    font-size: 3rem;
    flex-shrink: 0;
}

.benefit-content h3 {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 0.25rem;
}

.benefit-content p {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* CTA Section */
.cta-section {
    text-align: center;
    margin-bottom: var(--spacing-xxl);
}

.download-btn {
    position: relative;
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    background: var(--primary-gradient);
    color: var(--text-primary);
    font-size: 1.25rem;
    font-weight: 700;
    padding: 1.25rem 3rem;
    border: none;
    border-radius: var(--radius-xl);
    cursor: pointer;
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    transition: all var(--transition-normal);
}

.download-btn:hover {
    transform: translateY(-3px) scale(1.05);
    box-shadow: 0 12px 40px rgba(102, 126, 234, 0.5);
}

.download-btn:active {
    transform: translateY(-1px) scale(1.02);
}

.btn-glow {
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    transition: left 0.5s;
}

.download-btn:hover .btn-glow {
    left: 100%;
}

.btn-icon {
    font-size: 1.5rem;
}

.btn-text {
    font-size: 1.25rem;
}

.btn-arrow {
    font-size: 1.5rem;
    transition: transform var(--transition-normal);
}

.download-btn:hover .btn-arrow {
    transform: translateX(5px);
}

.download-hint {
    margin-top: var(--spacing-md);
    color: var(--text-secondary);
    font-size: 0.9rem;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
}

.hint-icon {
    color: #4ade80;
    font-weight: 700;
}

/* Features */
.features {
    margin-bottom: var(--spacing-xxl);
}

.section-title {
    text-align: center;
    font-size: 2rem;
    font-weight: 900;
    margin-bottom: var(--spacing-xl);
    background: linear-gradient(135deg, #fff 0%, #e0e0e0 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-lg);
}

.feature-card {
    background: var(--card-bg);
    backdrop-filter: blur(10px);
    border: 1px solid var(--card-border);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl) var(--spacing-lg);
    text-align: center;
    transition: all var(--transition-normal);
}

.feature-card:hover {
    transform: translateY(-10px);
    background: rgba(255, 255, 255, 0.08);
    box-shadow: var(--shadow-glow);
}

.feature-icon-wrapper {
    margin-bottom: var(--spacing-md);
}

.feature-icon {
    font-size: 4rem;
    display: inline-block;
    animation: float 3s ease-in-out infinite;
}

.feature-card:nth-child(2) .feature-icon {
    animation-delay: 0.5s;
}

.feature-card:nth-child(3) .feature-icon {
    animation-delay: 1s;
}

.feature-card:nth-child(4) .feature-icon {
    animation-delay: 1.5s;
}

@keyframes float {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-10px);
    }
}

.feature-title {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
}

.feature-desc {
    color: var(--text-secondary);
    line-height: 1.8;
}

/* Bonus Section */
.bonus-section {
    margin-bottom: var(--spacing-xxl);
}

.bonus-card {
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.1) 0%, rgba(118, 75, 162, 0.1) 100%);
    backdrop-filter: blur(10px);
    border: 2px solid var(--card-border);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    box-shadow: var(--shadow-lg);
}

.bonus-header {
    text-align: center;
    margin-bottom: var(--spacing-lg);
}

.bonus-tag {
    display: inline-block;
    background: var(--gold-gradient);
    color: #fff;
    padding: 0.5rem 1.5rem;
    border-radius: var(--radius-lg);
    font-weight: 700;
    margin-bottom: var(--spacing-md);
    box-shadow: var(--shadow-md);
}

.bonus-title {
    font-size: 1.75rem;
    font-weight: 900;
    color: var(--text-primary);
}

.bonus-content {
    display: flex;
    justify-content: center;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
    flex-wrap: wrap;
}

.bonus-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.bonus-step {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: var(--primary-gradient);
    border-radius: 50%;
    font-weight: 700;
    font-size: 1.25rem;
    box-shadow: var(--shadow-md);
}

.bonus-text {
    font-size: 1.1rem;
    font-weight: 600;
}

.bonus-btn {
    display: block;
    margin: 0 auto;
    background: var(--secondary-gradient);
    color: var(--text-primary);
    font-size: 1.25rem;
    font-weight: 700;
    padding: 1rem 3rem;
    border: none;
    border-radius: var(--radius-lg);
    cursor: pointer;
    box-shadow: var(--shadow-md);
    transition: all var(--transition-normal);
}

.bonus-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 24px rgba(245, 87, 108, 0.4);
}

/* Footer */
.footer {
    position: relative;
    z-index: 1;
    padding: var(--spacing-xl) 0;
    text-align: center;
    border-top: 1px solid var(--card-border);
}

.footer-text {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xs);
}

.footer-disclaimer {
    color: var(--text-muted);
    font-size: 0.85rem;
}

/* Responsive Design */
@media (max-width: 768px) {
    .logo {
        font-size: 1.5rem;
    }
    
    .benefits-title {
        font-size: 1.5rem;
    }
    
    .section-title {
        font-size: 1.5rem;
    }
    
    .benefits-grid {
        grid-template-columns: 1fr;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .download-btn {
        font-size: 1rem;
        padding: 1rem 2rem;
    }
    
    .btn-text {
        font-size: 1rem;
    }
    
    .bonus-content {
        flex-direction: column;
        align-items: center;
    }
    
    .bonus-title {
        font-size: 1.25rem;
    }
}

@media (max-width: 480px) {
    :root {
        --spacing-xl: 2rem;
        --spacing-xxl: 3rem;
    }
    
    .logo {
        font-size: 1.25rem;
    }
    
    .logo-badge {
        font-size: 0.65rem;
        padding: 0.2rem 0.5rem;
    }
    
    .benefits-title {
        font-size: 1.25rem;
    }
    
    .benefit-item {
        flex-direction: column;
        text-align: center;
    }
    
    .download-btn {
        width: 100%;
        justify-content: center;
    }
}