/* 全局样式 */
:root {
    --primary-color: #6366f1;
    --secondary-color: #8b5cf6;
    --success-color: #10b981;
    --danger-color: #ef4444;
    --warning-color: #f59e0b;
    --dark-color: #1f2937;
    --light-color: #f9fafb;
}

body {
    font-family: 'Microsoft YaHei', 'PingFang SC', 'Helvetica Neue', Arial, sans-serif;
    padding-top: 76px;
}

/* 导航栏 */
.navbar-brand {
    font-weight: bold;
    font-size: 1.25rem;
    display: flex;
    align-items: center;
    gap: 10px;
}

.logo-img {
    width: 40px;
    height: 40px;
    object-fit: contain;
    border-radius: 8px;
}

.navbar-nav .nav-link {
    font-weight: 500;
    padding: 0.5rem 1rem;
    transition: color 0.3s ease;
}

.navbar-nav .nav-link:hover {
    color: var(--primary-color) !important;
}

/* 英雄区域 */
.hero-section {
    position: relative;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
    overflow: hidden;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.3);
    z-index: 1;
}

.hero-content {
    position: relative;
    z-index: 2;
}

.hero-logo {
    max-width: 300px;
    width: 100%;
    height: auto;
    border-radius: 20px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    animation: float 3s ease-in-out infinite;
}

@keyframes float {
    0%, 100% {
        transform: translateY(0px);
    }
    50% {
        transform: translateY(-20px);
    }
}

/* 动画效果 */
.animate-fade-in {
    animation: fadeIn 1s ease-in;
}

.animate-fade-in-delay {
    animation: fadeIn 1s ease-in 0.3s both;
}

.animate-fade-in-delay-2 {
    animation: fadeIn 1s ease-in 0.6s both;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* 章节标题 */
.section-title {
    font-size: 2.5rem;
    font-weight: bold;
    color: var(--dark-color);
    margin-bottom: 3rem;
    position: relative;
    display: inline-block;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    border-radius: 2px;
}

/* 愿景卡片 */
.vision-card {
    background: white;
    border-radius: 15px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    border: 1px solid #e5e7eb;
}

.vision-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
}

.vision-card i {
    color: var(--primary-color);
}

/* 价值主张区域 */
.bg-gradient-primary {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.value-card {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border-radius: 15px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    transition: transform 0.3s ease, background 0.3s ease;
}

.value-card:hover {
    transform: translateY(-5px);
    background: rgba(255, 255, 255, 0.15);
}

.value-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
}

.value-card h4 {
    color: white;
    font-weight: bold;
}

.value-card p {
    color: rgba(255, 255, 255, 0.9);
}

/* 服务卡片 */
.service-card {
    background: white;
    border-radius: 15px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    border-left: 4px solid var(--primary-color);
}

.service-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
}

.service-detail-card {
    background: white;
    border-radius: 15px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease;
    border-top: 4px solid var(--primary-color);
}

.service-detail-card:hover {
    transform: translateY(-5px);
}

.service-icon {
    width: 100px;
    height: 100px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 3rem;
    margin: 0 auto;
}

/* 产品卡片 */
.product-card {
    background: white;
    border-radius: 15px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.product-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
}

.product-detail-card {
    background: white;
    border-radius: 15px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease;
}

.product-detail-card:hover {
    transform: translateY(-5px);
}

/* 页面头部 */
.page-header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
}

/* 关于我们页面 */
.mission-box, .vision-box {
    background: white;
    border-radius: 15px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
    border-left: 5px solid var(--primary-color);
}

.value-item {
    background: white;
    border-radius: 10px;
    box-shadow: 0 3px 15px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease;
}

.value-item:hover {
    transform: translateY(-5px);
}

/* 联系页面 */
.contact-card {
    background: white;
    border-radius: 15px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
    margin-bottom: 2rem;
}

.contact-info p {
    font-size: 1.1rem;
    margin-bottom: 1rem;
}

.contact-methods {
    margin-top: 2rem;
}

/* 页脚 */
footer {
    margin-top: auto;
}

footer a:hover {
    color: var(--primary-color) !important;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .hero-section {
        min-height: 80vh;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .hero-logo {
        max-width: 200px;
        margin-top: 2rem;
    }
}

/* 按钮样式增强 */
.btn-primary {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border: none;
    padding: 12px 30px;
    font-weight: 600;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(99, 102, 241, 0.4);
}

.btn-outline-light:hover {
    background: white;
    color: var(--primary-color);
}

/* 滚动动画 */
@media (prefers-reduced-motion: no-preference) {
    .fade-in-on-scroll {
        opacity: 0;
        transform: translateY(30px);
        transition: opacity 0.6s ease, transform 0.6s ease;
    }
    
    .fade-in-on-scroll.visible {
        opacity: 1;
        transform: translateY(0);
    }
}

/* 产品特性标签 */
.product-features .badge {
    padding: 0.5rem 1rem;
    font-weight: 500;
    border-radius: 20px;
}