/* Tailwind CSS CDN */
@import url('https://cdn.jsdelivr.net/npm/tailwindcss@2.2.19/dist/tailwind.min.css');

/* 自定义CSS变量 */
:root {
    --primary-purple: #8b5cf6;
    --secondary-purple: #6366f1;
    --dark-bg: #0f0f23;
    --card-bg: rgba(26, 26, 46, 0.8);
    --border-color: rgba(139, 92, 246, 0.2);
    --text-primary: #ffffff;
    --text-secondary: rgba(255, 255, 255, 0.8);
    --text-muted: rgba(255, 255, 255, 0.6);
    --gradient-primary: linear-gradient(135deg, #8b5cf6, #6366f1);
    --gradient-card: linear-gradient(135deg, rgba(26, 26, 46, 0.9), rgba(22, 33, 62, 0.9));
    --shadow-primary: 0 20px 40px rgba(139, 92, 246, 0.15);
    --shadow-hover: 0 25px 50px rgba(139, 92, 246, 0.25);
}

/* 页面整体背景 */
body {
    background: linear-gradient(135deg, #0f0f23 0%, #1a1a2e 50%, #16213e 100%);
    min-height: 100vh;
}

/* 筛选导航 */
.solution-filter {
    padding: 120px 0 60px 0;
    background: transparent;
    border-bottom: 1px solid var(--border-color);
}

.solution-filter .container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 20px;
}

.filter-controls {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 3rem;
}

/* 平铺筛选按钮样式 */
.filter-sections {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.filter-group {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.filter-label {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 8px;
    padding-left: 4px;
}

.filter-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.filter-btn {
    background: var(--card-bg);
    color: var(--text-secondary);
    border: 1px solid var(--border-color);
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    backdrop-filter: blur(10px);
    position: relative;
    overflow: hidden;
    white-space: nowrap;
}

.filter-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.1), transparent);
    transition: left 0.5s ease;
}

.filter-btn:hover::before {
    left: 100%;
}

.filter-btn:hover {
    transform: translateY(-2px);
    border-color: var(--primary-purple);
    box-shadow: 0 6px 20px rgba(139, 92, 246, 0.2);
    color: var(--text-primary);
}

.filter-btn.active {
    background: var(--gradient-primary);
    color: white;
    border-color: var(--primary-purple);
    box-shadow: 0 6px 20px rgba(139, 92, 246, 0.3);
    transform: translateY(-1px);
}

.filter-btn.active:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(139, 92, 246, 0.4);
}

/* 搜索框样式 */
.search-box {
    display: flex;
    width: 320px;
    flex-shrink: 0;
}

.search-box input {
    flex: 1;
    padding: 10px 18px;
    background: var(--gradient-card);
    border: 1px solid var(--border-color);
    border-radius: 18px 0 0 18px;
    color: var(--text-primary);
    font-size: 14px;
    backdrop-filter: blur(15px);
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(139, 92, 246, 0.1);
}

.search-box input:focus {
    outline: none;
    border-color: var(--primary-purple);
    box-shadow: 0 0 0 3px rgba(139, 92, 246, 0.15), 0 6px 20px rgba(139, 92, 246, 0.2);
    transform: translateY(-1px);
}

.search-box input::placeholder {
    color: var(--text-muted);
    font-weight: 400;
}

.search-btn {
    padding: 10px 18px;
    background: var(--gradient-primary);
    border: 1px solid var(--primary-purple);
    border-radius: 0 18px 18px 0;
    color: white;
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 14px;
    box-shadow: 0 4px 15px rgba(139, 92, 246, 0.2);
    position: relative;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
}

.search-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s ease;
}

.search-btn:hover::before {
    left: 100%;
}

.search-btn:hover {
    transform: translateY(-1px) scale(1.02);
    box-shadow: 0 6px 20px rgba(139, 92, 246, 0.4);
    background: linear-gradient(135deg, #7c3aed, #4f46e5);
}

/* 解决方案网格 - PC端3列布局优化 */
.solutions-section {
    padding: var(--spacing-3xl) 0;
    background: rgba(15, 23, 42, 0.5);
    position: relative;
}

.solutions-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 30% 20%, rgba(124, 58, 237, 0.1) 0%, transparent 50%),
                radial-gradient(circle at 70% 80%, rgba(6, 182, 212, 0.1) 0%, transparent 50%);
}

.solutions-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-xl);
    position: relative;
    z-index: 2;
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 20px;
}

/* 解决方案卡片 - 参考首页样式优化 */
.solution-card {
    background: var(--bg-glass);
    backdrop-filter: blur(20px);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
    cursor: pointer;
    min-height: 280px;
    display: flex;
    flex-direction: column;
}

.solution-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--gradient-primary);
    transform: scaleX(0);
    transition: transform var(--transition-normal);
}

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

.solution-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.2);
    border-color: var(--primary-color);
}

/* 卡片头部区域 - 参考首页布局 */
.solution-header {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

/* 卡片图标 - 参考首页样式 */
.solution-icon {
    font-size: 2rem;
    flex-shrink: 0;
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(16, 185, 129, 0.1);
    border-radius: var(--radius-lg);
    border: 1px solid rgba(16, 185, 129, 0.2);
}

/* 卡片元信息区域 */
.solution-meta {
    flex-grow: 1;
}

/* 卡片标题 - 参考首页样式 */
.solution-title {
    font-size: var(--font-size-lg);
    font-weight: 600;
    background: linear-gradient(135deg, #10B981 0%, #059669 50%, #047857 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: var(--spacing-xs);
    line-height: 1.3;
}

/* 卡片副标题 */
.solution-subtitle {
    font-size: var(--font-size-xs);
    color: var(--secondary-color);
    font-weight: 500;
    margin-bottom: 0;
    opacity: 0.8;
}

/* 卡片描述 - 参考首页样式 */
.solution-description {
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: var(--spacing-lg);
    flex-grow: 1;
    font-size: var(--font-size-sm);
}

/* 功能列表 - 参考首页样式 */
.solution-benefits {
    margin-bottom: var(--spacing-lg);
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-xs);
}

.benefit-item {
    display: inline-flex;
    align-items: center;
    padding: 4px 12px;
    background: linear-gradient(135deg, rgba(16, 185, 129, 0.1) 0%, rgba(5, 150, 105, 0.1) 100%);
    border: 1px solid rgba(16, 185, 129, 0.2);
    border-radius: var(--radius-md);
    color: #10B981;
    font-size: var(--font-size-xs);
    font-weight: 500;
    transition: all var(--transition-normal);
    white-space: nowrap;
}

.benefit-item:hover {
    background: linear-gradient(135deg, rgba(16, 185, 129, 0.15) 0%, rgba(5, 150, 105, 0.15) 100%);
    border-color: rgba(16, 185, 129, 0.3);
    transform: translateY(-1px);
}



/* 查看详情按钮 - 参考首页样式 */
.solution-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-xs) var(--spacing-sm);
    background: transparent;
    border: 1px solid #10B981;
    border-radius: var(--radius-md);
    color: #10B981;
    text-decoration: none;
    font-weight: 500;
    font-size: var(--font-size-xs);
    transition: all var(--transition-normal);
    margin: var(--spacing-sm) auto 0;
    width: fit-content;
    min-width: 80px;
}

.solution-link:hover {
    background: linear-gradient(135deg, #10B981 0%, #059669 50%, #047857 100%);
    border-color: #059669;
    color: white;
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(16, 185, 129, 0.3);
}

.solution-link .link-arrow {
    transition: transform var(--transition-normal);
}

.solution-link:hover .link-arrow {
    transform: translateX(3px);
}

/* 实施优势区域优化 */
.implementation-advantages {
    padding: 100px 0;
    background: transparent;
}

.section-header {
    text-align: center;
    margin-bottom: 80px;
}

/* 实施优势标题优化 */
.section-title {
    font-size: 48px !important;
    font-weight: 700 !important;
    color: var(--text-primary) !important;
    margin-bottom: 24px !important;
    line-height: 1.2 !important;
    background: linear-gradient(135deg, #ffffff, #c4b5fd);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-subtitle {
    font-size: 18px !important;
    color: var(--text-secondary) !important;
    font-weight: 400 !important;
    line-height: 1.6 !important;
    margin: 0 auto !important;
    max-width: 600px !important;
    text-align: center !important;
}

.advantages-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 32px;
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 20px;
}

.advantage-card {
    background: var(--gradient-card);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    padding: 32px;
    text-align: center;
    transition: all 0.4s ease;
    backdrop-filter: blur(15px);
    position: relative;
    overflow: hidden;
}

.advantage-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(139, 92, 246, 0.05), rgba(99, 102, 241, 0.05));
    opacity: 0;
    transition: opacity 0.3s ease;
    pointer-events: none;
}

.advantage-card:hover::before {
    opacity: 1;
}

.advantage-card:hover {
    transform: translateY(-12px);
    border-color: rgba(139, 92, 246, 0.4);
    box-shadow: var(--shadow-hover);
}

.advantage-icon {
    font-size: 4rem;
    margin-bottom: 24px;
    display: block;
    filter: drop-shadow(0 4px 8px rgba(139, 92, 246, 0.3));
}

.advantage-title {
    font-size: 20px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 16px;
}

.advantage-description {
    color: var(--text-secondary);
    line-height: 1.6;
    font-size: 16px;
}

/* CTA区域 */
.cta-section {
    padding: 100px 0;
    background: linear-gradient(135deg, rgba(139, 92, 246, 0.1), rgba(99, 102, 241, 0.1));
    text-align: center;
    border-top: 1px solid var(--border-color);
}

.cta-content {
    max-width: 800px;
    margin: 0 auto;
    padding: 0 20px;
}

.cta-title {
    font-size: 36px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 16px;
    background: linear-gradient(135deg, #ffffff, #c4b5fd);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.cta-subtitle {
    font-size: 18px;
    color: var(--text-secondary);
    margin-bottom: 40px;
}

.cta-actions {
    display: flex;
    gap: 20px;
    justify-content: center;
    flex-wrap: wrap;
}

/* CTA按钮样式 - 增加特异性以覆盖common.css */
.cta-section .btn-primary.large,
.cta-section .btn-outline.large {
    padding: 12px 28px !important;
    font-size: 15px !important;
    border-radius: 22px !important;
    font-weight: 600 !important;
    transition: all 0.3s ease !important;
}

.cta-section .btn-primary.large {
    background: var(--gradient-primary) !important;
    color: white !important;
    border: none !important;
}

.cta-section .btn-primary.large:hover {
    transform: translateY(-2px) !important;
    box-shadow: 0 10px 30px rgba(139, 92, 246, 0.4) !important;
}

.cta-section .btn-outline.large {
    background: transparent !important;
    color: var(--primary-purple) !important;
    border: 2px solid var(--primary-purple) !important;
}

.cta-section .btn-outline.large:hover {
    background: var(--gradient-primary) !important;
    color: white !important;
    border-color: transparent !important;
    transform: translateY(-2px) !important;
    box-shadow: 0 10px 30px rgba(139, 92, 246, 0.4) !important;
}

/* 无结果状态 */
.no-results {
    text-align: center;
    color: var(--text-primary);
    padding: 80px 20px;
    grid-column: 1 / -1;
}

.no-results-icon {
    font-size: 4rem;
    margin-bottom: 24px;
    opacity: 0.6;
}

.no-results h3 {
    font-size: 24px;
    margin-bottom: 12px;
    font-weight: 600;
}

.no-results p {
    opacity: 0.8;
    font-size: 16px;
}

/* 响应式设计 */
@media (max-width: 1200px) {
    .solutions-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 18px;
    }
    
    .solution-card {
        padding: 18px;
        min-height: 380px;
    }
}

@media (max-width: 1024px) {
    .solutions-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 24px;
    }
    
    .solution-card {
        padding: 24px;
        min-height: 420px;
    }
    
    .solution-icon {
        width: 64px;
        height: 64px;
        font-size: 2rem;
    }
    
    .solution-title {
        font-size: 20px;
    }
    
    .solution-description {
        font-size: 14px;
    }
    
    .advantages-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 24px;
    }
    
    .section-title {
        font-size: 40px !important;
    }
}