/* 基础样式重置 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* 导航栏样式 */
#navbar.scrolled {
    background-color: white !important;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    padding: 0.5rem 0;
}

/* 响应式设计断点 */
@media (max-width: 768px) {
    .container {
        padding-left: 1rem;
        padding-right: 1rem;
    }
    
    /* 移动端导航菜单动画 */
    #mobileMenu {
        max-height: 0;
        overflow: hidden;
        transition: max-height 0.3s ease-out;
    }
    
    #mobileMenu.show {
        max-height: 300px;
        transition: max-height 0.3s ease-in;
    }
}

/* 卡片悬停效果 */
.card-hover {
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.card-hover:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
}

/* 按钮动画效果 */
.btn-primary {
    transition: all 0.3s ease;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(37, 99, 235, 0.3);
}

/* 表单样式 */
input[type="text"],
input[type="tel"],
input[type="email"],
textarea {
    transition: all 0.3s ease;
}

input[type="text"]:focus,
input[type="tel"]:focus,
input[type="email"]:focus,
textarea:focus {
    border-color: #3b82f6;
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

/* 平滑滚动 */
html {
    scroll-behavior: smooth;
}

/* 图片懒加载 */
img[data-src] {
    opacity: 0;
    transition: opacity 0.3s ease;
}

img[data-src].loaded {
    opacity: 1;
}

/* 加载动画 */
.loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid rgba(59, 130, 246, 0.3);
    border-radius: 50%;
    border-top-color: #3b82f6;
    animation: spin 1s ease-in-out infinite;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

/* 文本截断样式 */
.text-truncate-2 {
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.text-truncate-3 {
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* 动画效果 */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in {
    animation: fadeIn 0.6s ease-out forwards;
}

/* 延迟动画 */
.delay-100 {
    animation-delay: 100ms;
}

.delay-200 {
    animation-delay: 200ms;
}

.delay-300 {
    animation-delay: 300ms;
}

.delay-400 {
    animation-delay: 400ms;
}

.delay-500 {
    animation-delay: 500ms;
}

/* 数字统计动画 */
@keyframes countUp {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.count-up {
    animation: countUp 0.8s ease-out forwards;
}

/* 产品卡片样式 */
.product-card {
    position: relative;
    overflow: hidden;
    transition: all 0.3s ease;
}

.product-card::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: all 0.6s ease;
}

.product-card:hover::before {
    left: 100%;
}

/* 团队成员卡片 */
.team-card {
    transition: all 0.3s ease;
}

.team-card:hover .team-img {
    transform: scale(1.05);
}

.team-img {
    transition: transform 0.3s ease;
}

/* 客户评价样式 */
.testimonial-slide {
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.5s ease;
}

.testimonial-slide.active {
    opacity: 1;
    transform: translateY(0);
}

/* 分隔线样式 */
.section-divider {
    position: relative;
    height: 1px;
    background: linear-gradient(90deg, transparent, #d1d5db, transparent);
}

.section-divider::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 40px;
    height: 5px;
    background-color: #3b82f6;
    border-radius: 5px;
}

/* 自定义滚动条 */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: #f1f1f1;
}

::-webkit-scrollbar-thumb {
    background: #c1c1c1;
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: #a1a1a1;
}

/* 打印样式 */
@media print {
    nav, 
    .no-print, 
    button {
        display: none !important;
    }
    
    a {
        color: #000;
        text-decoration: none;
    }
    
    body {
        font-size: 12pt;
        line-height: 1.4;
    }
}

/* 高对比度模式支持 */
@media (prefers-contrast: high) {
    :root {
        --color-primary: #0000ff;
        --color-secondary: #000000;
        --color-background: #ffffff;
    }
}

/* 减少动画模式支持 */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* 暗黑模式支持 */
@media (prefers-color-scheme: dark) {
    :root {
        --color-primary: #3b82f6;
        --color-secondary: #6b7280;
        --color-background: #111827;
        --color-text: #f3f4f6;
    }
    
    body {
        background-color: var(--color-background);
        color: var(--color-text);
    }
}