/**
 * 首页解决方案区域 - 高级感重新设计
 * Home Solutions Section - Premium Redesign
 * 
 * 设计理念：克制、优雅、现代
 * 
 * @package Corporate_Theme
 * @since 1.0.0
 */

/* ==========================================================================
   核心业务领域 - 高级感重新设计
   ========================================================================== */

.business-areas {
    background: var(--bg-secondary);
    padding: 5rem 0;
    position: relative;
}

/* 背景装饰 */
.business-areas::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(
        to right,
        transparent 0%,
        var(--border-color) 50%,
        transparent 100%
    );
}

/* 区域标题优化 */
.business-areas .section-header {
    margin-bottom: 4rem;
}

.business-areas .section-title {
    font-size: 2.25rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 1rem;
}

.business-areas .section-divider {
    width: 80px;
    height: 4px;
    background: linear-gradient(
        to right,
        var(--primary-color),
        var(--primary-light)
    );
    margin: 1.5rem auto;
    border-radius: 2px;
}

.business-areas .section-description {
    font-size: 1.125rem;
    color: var(--text-secondary);
    max-width: 700px;
    margin: 0 auto;
    line-height: 1.7;
}

/* ==========================================================================
   业务网格 - 现代卡片设计
   ========================================================================== */

.business-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

/* 业务卡片 - 高级感设计 */
.business-item {
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 0;
    overflow: hidden;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    display: flex;
    flex-direction: column;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
}

/* 悬停效果 - 优雅上浮 */
.business-item:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 32px rgba(25, 118, 210, 0.12);
    border-color: var(--primary-light);
}

/* 顶部装饰条 */
.business-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(
        to right,
        var(--primary-color),
        var(--primary-light)
    );
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.business-item:hover::before {
    transform: scaleX(1);
}

/* ==========================================================================
   图标区域 - 现代设计
   ========================================================================== */

.business-icon {
    width: 100%;
    height: 180px;
    margin: 0;
    border-radius: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(
        135deg,
        var(--bg-tertiary) 0%,
        var(--bg-secondary) 100%
    );
    position: relative;
    overflow: hidden;
}

/* 图标背景装饰 */
.business-icon::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(
        circle,
        rgba(25, 118, 210, 0.08) 0%,
        transparent 70%
    );
    transition: transform 0.6s ease;
}

.business-item:hover .business-icon::before {
    transform: translate(-25%, -25%);
}

/* 图片样式 */
.business-icon img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.business-item:hover .business-icon img {
    transform: scale(1.05);
}

/* 占位图标 - 现代设计 */
.business-icon-placeholder {
    width: 80px;
    height: 80px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-primary);
    border-radius: 20px;
    font-size: 2.5rem;
    color: var(--primary-color);
    position: relative;
    z-index: 1;
    box-shadow: 0 4px 16px rgba(25, 118, 210, 0.15);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.business-item:hover .business-icon-placeholder {
    transform: scale(1.1) rotate(5deg);
    box-shadow: 0 8px 24px rgba(25, 118, 210, 0.25);
}

.business-icon-placeholder .dashicons {
    font-size: 2.5rem;
    width: 2.5rem;
    height: 2.5rem;
}

/* ==========================================================================
   内容区域
   ========================================================================== */

.business-item-content {
    padding: 2rem;
    flex: 1;
    display: flex;
    flex-direction: column;
}

/* 标题 */
.business-title {
    font-size: 1.375rem;
    font-weight: 600;
    margin: 0 0 1rem 0;
    line-height: 1.3;
}

.business-title a {
    color: var(--text-primary);
    text-decoration: none;
    transition: color 0.3s ease;
    display: inline-block;
}

.business-item:hover .business-title a {
    color: var(--primary-color);
}

/* 描述文字 */
.business-description {
    color: var(--text-secondary);
    font-size: 0.9375rem;
    line-height: 1.7;
    margin: 0 0 1.5rem 0;
    flex: 1;
}

/* 查看详情链接 */
.business-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--primary-color);
    font-weight: 600;
    font-size: 0.9375rem;
    text-decoration: none;
    transition: all 0.3s ease;
    margin-top: auto;
}

.business-link::after {
    content: '→';
    font-size: 1.125rem;
    transition: transform 0.3s ease;
}

.business-item:hover .business-link {
    color: var(--accent-color);
}

.business-item:hover .business-link::after {
    transform: translateX(4px);
}

/* ==========================================================================
   数字标记（可选）
   ========================================================================== */

.business-item-number {
    position: absolute;
    top: 1rem;
    right: 1rem;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.95);
    color: var(--primary-color);
    font-size: 1.125rem;
    font-weight: 700;
    border-radius: 50%;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    z-index: 2;
}

/* ==========================================================================
   响应式设计
   ========================================================================== */

/* 平板 */
@media (max-width: 1024px) {
    .business-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 1.75rem;
    }
    
    .business-icon {
        height: 160px;
    }
}

/* 手机 */
@media (max-width: 768px) {
    .business-areas {
        padding: 4rem 0;
    }
    
    .business-areas .section-title {
        font-size: 1.875rem;
    }
    
    .business-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .business-icon {
        height: 200px;
    }
    
    .business-item-content {
        padding: 1.5rem;
    }
    
    .business-title {
        font-size: 1.25rem;
    }
}

/* 小手机 */
@media (max-width: 480px) {
    .business-areas {
        padding: 3rem 0;
    }
    
    .business-areas .section-title {
        font-size: 1.625rem;
    }
    
    .business-icon {
        height: 180px;
    }
    
    .business-item-content {
        padding: 1.25rem;
    }
}

/* ==========================================================================
   动画效果
   ========================================================================== */

/* 卡片进入动画 */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.business-item {
    animation: fadeInUp 0.6s ease-out backwards;
}

/* 延迟动画 */
.business-item:nth-child(1) { animation-delay: 0.1s; }
.business-item:nth-child(2) { animation-delay: 0.2s; }
.business-item:nth-child(3) { animation-delay: 0.3s; }
.business-item:nth-child(4) { animation-delay: 0.4s; }
.business-item:nth-child(5) { animation-delay: 0.5s; }
.business-item:nth-child(6) { animation-delay: 0.6s; }

/* 禁用动画（用户偏好） */
@media (prefers-reduced-motion: reduce) {
    .business-item {
        animation: none;
    }
    
    .business-item:hover {
        transform: none;
    }
}

/* ==========================================================================
   打印样式
   ========================================================================== */

@media print {
    .business-item {
        break-inside: avoid;
        box-shadow: none;
        border: 1px solid #ddd;
    }
    
    .business-item:hover {
        transform: none;
    }
}