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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    line-height: 1.6;
    color: #181D27;
}

.container {
    max-width: 1440px;
    margin: 0 auto;
    padding: 0 20px;
    width: 100%;
}

.logo img {
    height: 40px;
}

.nav {
    margin-right: auto;
    margin-left: 2rem;
}

.nav-list {
    list-style: none;
    display: flex;
    gap: 2rem;
    align-items: center;
}

.nav-list a {
    text-decoration: none;
    color: #6B7280;
    font-weight: 600;
    font-size: 16px;
    transition: color 0.2s ease;
}

.nav-list a:hover,
.nav-list a.active {
    color: #7F56D9;
}

.actions {
    display: flex;
    gap: 1rem;
    align-items: center;
}

/* Button Styles */
.btn {
    padding: 0.5rem 1.25rem;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
    border: 1px solid transparent;
}

.btn-primary {
    background: #7F56D9;
    color: white;
    border: 1px solid #7F56D9;
}

.btn-primary:hover {
    background: #6D48C1;
}

.btn-outline {
    border: 1px solid #D5D7DA;
    background: white;
    color: #414651;
}

.btn-outline:hover {
    background: #F9FAFB;
}

/* Main Content */
main {
    margin-top: 80px;
}

/* Hero Section */
.hero-section {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    padding: 120px 0;
    text-align: center;
}

.hero-content {
    max-width: 900px;
    margin: 0 auto;
}

.hero-title {
    font-size: 48px;
    font-weight: 700;
    color: white;
    margin-bottom: 24px;
}

.hero-subtitle {
    font-size: 20px;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 40px;
}

.hero-buttons {
    display: flex;
    justify-content: center;
    gap: 16px;
}

/* Section Styles */
section {
    padding: 100px 0;
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-title {
    font-size: 36px;
    font-weight: 700;
    color: #181D27;
    margin-bottom: 16px;
}

.section-description {
    font-size: 18px;
    color: #6B7280;
    max-width: 800px;
    margin: 0 auto;
}

/* Core Abilities Section */
.core-abilities {
    background: white;
}

.abilities-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 32px;
    max-width: 1200px;
    margin: 0 auto;
}

.ability-card {
    background: #F9FAFB;
    padding: 40px;
    border-radius: 12px;
    transition: all 0.3s ease;
}

.ability-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(127, 86, 217, 0.15);
}

.ability-icon {
    margin-bottom: 20px;
}

.ability-title {
    font-size: 20px;
    font-weight: 600;
    color: #181D27;
    margin-bottom: 12px;
}

.ability-description {
    font-size: 16px;
    color: #6B7280;
    line-height: 1.6;
}

/* Scenarios Section */
.scenarios-section {
    background: linear-gradient(135deg, #F5F3FF 0%, #FAFBFF 50%, #F5F3FF 100%);
}

.scenarios-list {
    max-width: 1000px;
    margin: 0 auto;
}

.scenario-item {
    display: flex;
    align-items: flex-start;
    gap: 32px;
    background: white;
    padding: 40px;
    border-radius: 12px;
    margin-bottom: 24px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
}

.scenario-item:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(127, 86, 217, 0.15);
}

.scenario-icon {
    flex-shrink: 0;
}

.scenario-title {
    font-size: 24px;
    font-weight: 600;
    color: #181D27;
    margin-bottom: 12px;
}

.scenario-description {
    font-size: 16px;
    color: #6B7280;
    line-height: 1.6;
}

/* Features Detail Section */
.features-detail-section {
    background: white;
}

.features-detail-content {
    display: flex;
    gap: 48px;
    max-width: 1200px;
    margin: 0 auto;
}

.features-left {
    width: 300px;
    flex-shrink: 0;
}

.feature-list {
    background: #F9FAFB;
    padding: 8px;
    border-radius: 8px;
}

.feature-item {
    padding: 16px 20px;
    cursor: pointer;
    transition: all 0.2s ease;
    border-radius: 6px;
    margin-bottom: 4px;
    font-weight: 600;
    color: #6B7280;
}

.feature-item:hover {
    background: #F3F4F6;
}

.feature-item.active {
    background: #7F56D9;
    color: white;
}

.features-right {
    flex: 1;
}

.feature-detail {
    display: none;
    background: #F9FAFB;
    padding: 40px;
    border-radius: 12px;
}

.feature-detail.active {
    display: block;
}

.feature-detail-title {
    font-size: 24px;
    font-weight: 600;
    color: #181D27;
    margin-bottom: 24px;
}

.feature-detail-list {
    list-style: none;
}

.feature-detail-list li {
    padding: 12px 0;
    padding-left: 32px;
    position: relative;
    color: #6B7280;
    font-size: 16px;
}

.feature-detail-list li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: #7F56D9;
    font-weight: bold;
}

/* Advantages Section */
.advantages-section {
    background: linear-gradient(135deg, #F5F3FF 0%, #FAFBFF 50%, #F5F3FF 100%);
}

.advantages-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    max-width: 1200px;
    margin: 0 auto;
}

.advantage-card {
    background: white;
    padding: 32px;
    border-radius: 12px;
    text-align: center;
    transition: all 0.3s ease;
}

.advantage-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 8px 24px rgba(127, 86, 217, 0.2);
}

.advantage-number {
    font-size: 48px;
    font-weight: 700;
    color: #7F56D9;
    margin-bottom: 16px;
    opacity: 0.2;
}

.advantage-title {
    font-size: 18px;
    font-weight: 600;
    color: #181D27;
    margin-bottom: 12px;
}

.advantage-description {
    font-size: 14px;
    color: #6B7280;
    line-height: 1.6;
}

/* Responsive */
@media (max-width: 1024px) {
    .abilities-grid {
        grid-template-columns: 1fr;
    }
    
    .advantages-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .nav-list {
        gap: 1rem;
        font-size: 14px;
    }
    
    .hero-content h1 {
        font-size: 32px;
    }
    
    .abilities-grid {
        grid-template-columns: 1fr;
    }
    
    .advantages-grid {
        grid-template-columns: 1fr;
    }
    
    .features-detail-content {
        flex-direction: column;
    }
    
    .features-left {
        width: 100%;
    }
}

/* Responsive */
@media (max-width: 1024px) {
    .abilities-grid {
        grid-template-columns: 1fr;
    }

    .advantages-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .nav-list {
        gap: 1rem;
        font-size: 14px;
    }

    .hero-content h1 {
        font-size: 32px;
    }

    .abilities-grid {
        grid-template-columns: 1fr;
    }

    .advantages-grid {
        grid-template-columns: 1fr;
    }

    .features-detail-content {
        flex-direction: column;
    }

    .features-left {
        width: 100%;
    }
}