/* Business Page Specific Styles */

/* Ensure smooth page flow */
body {
    overflow-x: hidden;
}

.container {
    position: relative;
    z-index: 1;
}

/* Page Header */
.page-header {
    margin-top: 70px;
    padding: 4rem 0;
    background: linear-gradient(135deg, #1e293b 0%, #334155 100%);
    color: white;
    text-align: center;
    position: relative;
    width: 100%;
}

.page-header h1 {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.page-header p {
    font-size: 1.2rem;
    opacity: 0.9;
    max-width: 600px;
    margin: 0 auto;
}

/* Business Navigation */
.business-nav {
    padding: 2rem 0;
    background: white;
    position: relative;
    z-index: 100;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.nav-tabs {
    display: flex;
    justify-content: center;
    gap: 1rem;
    flex-wrap: wrap;
}

.tab-btn {
    background: #f8fafc;
    border: 2px solid #e2e8f0;
    border-radius: 12px;
    padding: 1rem 1.5rem;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    min-width: 140px;
    justify-content: center;
}

.tab-btn:hover {
    background: #e0f2fe;
    border-color: #0369a1;
    transform: translateY(-2px);
}

.tab-btn.active {
    background: #2563eb;
    border-color: #2563eb;
    color: white;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(37, 99, 235, 0.3);
}

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

.tab-text {
    font-weight: 600;
    font-size: 0.9rem;
}

/* Business Sections */
.business-section {
    padding: 4rem 0;
    background: #f8fafc;
    display: none;
    position: relative;
    width: 100%;
    min-height: auto;
}

.business-section.active {
    display: block;
}

.business-section:nth-child(even) {
    background: white;
}

/* Business Introduction */
.business-intro {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 3rem;
    align-items: center;
    margin-bottom: 4rem;
}

.intro-content h2 {
    font-size: 2.5rem;
    font-weight: 700;
    color: #1e293b;
    margin-bottom: 0.5rem;
}

.intro-content h3 {
    font-size: 1.4rem;
    font-weight: 600;
    color: #2563eb;
    margin-bottom: 1.5rem;
}

.intro-content p {
    font-size: 1.1rem;
    color: #64748b;
    line-height: 1.8;
}

.intro-visual {
    position: relative;
    flex: 1;
    max-width: 500px;
    height: 350px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-left: 2rem;
}

.business-illustration {
    width: 100%;
    height: 100%;
    object-fit: contain;
    filter: drop-shadow(0 15px 35px rgba(0, 0, 0, 0.1));
    transition: transform 0.3s ease;
}

.business-illustration:hover {
    transform: scale(1.05);
}

.visual-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    pointer-events: none;
    display: flex;
    align-items: flex-end;
    justify-content: center;
    gap: 1rem;
    padding: 2rem;
}

.feature-badge {
    background: rgba(59, 130, 246, 0.95);
    color: white;
    padding: 0.75rem 1.25rem;
    border-radius: 2rem;
    font-size: 0.875rem;
    font-weight: 600;
    backdrop-filter: blur(10px);
    box-shadow: 0 8px 32px rgba(59, 130, 246, 0.3);
    animation: float 3s ease-in-out infinite;
}

.feature-badge:nth-child(2) {
    animation-delay: 0.5s;
    background: rgba(139, 92, 246, 0.95);
    box-shadow: 0 8px 32px rgba(139, 92, 246, 0.3);
}

/* 浮动动画 */
@keyframes float {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-10px); }
}

/* Solution Overview */
.solution-overview {
    background: white;
    border-radius: 16px;
    padding: 2.5rem;
    margin-bottom: 3rem;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
    border-left: 4px solid #2563eb;
}

.solution-overview h3 {
    font-size: 1.5rem;
    font-weight: 600;
    color: #1e293b;
    margin-bottom: 1rem;
}

.solution-overview p {
    color: #64748b;
    line-height: 1.8;
}

/* Core Products */
.core-products {
    margin-bottom: 3rem;
}

.core-products h3 {
    font-size: 1.8rem;
    font-weight: 600;
    color: #1e293b;
    margin-bottom: 2rem;
    text-align: center;
}

.product-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.product-card {
    background: white;
    border-radius: 1rem;
    padding: 2rem;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
    border: 1px solid rgba(232, 238, 252, 0.5);
    position: relative;
    overflow: hidden;
}

.product-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

.product-card:hover::before {
    transform: scaleX(1);
}

.product-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.12);
}

.product-header {
    margin-bottom: 1rem;
}

.product-header h4 {
    font-size: 1.3rem;
    font-weight: 600;
    color: #1e293b;
}

.product-card p {
    color: #64748b;
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

.product-features {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.feature {
    background: #e0f2fe;
    color: #0369a1;
    padding: 0.3rem 0.8rem;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 500;
}

/* Value Proposition */
.value-proposition {
    margin-top: 3rem;
}

.value-proposition h3 {
    font-size: 1.8rem;
    font-weight: 600;
    color: #1e293b;
    margin-bottom: 2rem;
    text-align: center;
}

.value-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
}

.stat-card {
    background: white;
    padding: 2rem;
    border-radius: 1rem;
    text-align: center;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
    border: 1px solid rgba(232, 238, 252, 0.5);
}

.stat-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.12);
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--primary-color);
    line-height: 1;
    margin-bottom: 0.5rem;
}

.stat-label {
    color: var(--text-light);
    font-size: 0.875rem;
    line-height: 1.4;
}

/* Solution Highlights */
.solution-highlights {
    margin-top: 3rem;
}

.solution-highlights h3 {
    font-size: 1.8rem;
    font-weight: 600;
    color: #1e293b;
    margin-bottom: 2rem;
    text-align: center;
}

.highlight-list {
    display: grid;
    gap: 1.5rem;
}

.highlight-item {
    background: white;
    border-radius: 12px;
    padding: 2rem;
    display: flex;
    align-items: flex-start;
    gap: 1.5rem;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
    border: 1px solid #e2e8f0;
    transition: all 0.3s ease;
}

.highlight-item:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
}

.highlight-icon {
    font-size: 2.5rem;
    background: #e0f2fe;
    border-radius: 12px;
    padding: 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.highlight-content h4 {
    font-size: 1.2rem;
    font-weight: 600;
    color: #1e293b;
    margin-bottom: 0.5rem;
}

.highlight-content p {
    color: #64748b;
    line-height: 1.6;
}

/* Responsive Design */
@media (max-width: 768px) {
    .page-header h1 {
        font-size: 2.5rem;
    }

    .page-header p {
        font-size: 1rem;
    }

    .nav-tabs {
        flex-direction: column;
        align-items: center;
    }

    .tab-btn {
        width: 100%;
        max-width: 300px;
    }

    .business-intro {
        flex-direction: column;
        text-align: center;
        gap: 2rem;
    }

    .intro-content h2 {
        font-size: 2rem;
    }

    .intro-content h3 {
        font-size: 1.2rem;
    }

    .intro-content p {
        font-size: 1rem;
    }

    .intro-visual {
        margin-left: 0;
        max-width: 100%;
        height: 300px;
    }
    
    .visual-overlay {
        position: static;
        display: flex;
        justify-content: center;
        margin-top: 1rem;
    }
    
    .feature-badge {
        position: static;
        margin: 0.5rem;
        animation: none;
    }

    .product-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .value-stats {
        grid-template-columns: repeat(2, 1fr);
        gap: 1rem;
    }
}

@media (max-width: 480px) {
    .page-header h1 {
        font-size: 2rem;
    }

    .business-intro {
        margin-bottom: 2rem;
    }

    .solution-overview {
        padding: 1.5rem;
    }

    .product-card {
        padding: 1.5rem;
    }

    .stat-card {
        padding: 1.5rem;
    }

    .highlight-item {
        padding: 1.5rem;
    }

    .intro-visual {
        height: 250px;
    }
    
    .value-stats {
        grid-template-columns: 1fr;
    }
}

/* Animation Classes */
.fade-in-up {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s ease;
}

.fade-in-up.visible {
    opacity: 1;
    transform: translateY(0);
}

.slide-in-left {
    opacity: 0;
    transform: translateX(-30px);
    transition: all 0.6s ease;
}

.slide-in-left.visible {
    opacity: 1;
    transform: translateX(0);
}

.slide-in-right {
    opacity: 0;
    transform: translateX(30px);
    transition: all 0.6s ease;
}

.slide-in-right.visible {
    opacity: 1;
    transform: translateX(0);
}