/* 性能优化样式 */
:root {
    --primary-color: #23406e;
    --secondary-color: #e3eefe;
    --text-color: #333;
    --transition-speed: 0.3s;
    --card-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    --hover-shadow: 0 8px 15px rgba(0, 0, 0, 0.2);
    --highlight-color: #ffd700;
    --highlight-bg: rgba(255, 215, 0, 0.1);
}

/* 全局优化 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: var(--text-color);
}

/* 加载动画 */
.loading-indicator {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: linear-gradient(to right, var(--primary-color), var(--secondary-color));
    animation: loading 1s ease-in-out infinite;
    z-index: 1000;
}

@keyframes loading {
    0% { transform: translateX(-100%); }
    100% { transform: translateX(100%); }
}

/* 返回顶部按钮 */
.back-to-top {
    position: fixed;
    bottom: 20px;
    right: 20px;
    background: var(--primary-color);
    color: white;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    opacity: 0;
    transition: opacity var(--transition-speed);
    z-index: 999;
}

.back-to-top.visible {
    opacity: 1;
}

/* 代理页面特定样式 */
.agent-hero {
    background: linear-gradient(135deg, var(--primary-color), #1a2c4e);
    color: white;
    padding: 120px 0 80px;
    text-align: center;
}

.hero-content {
    max-width: 800px;
    margin: 0 auto;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 800;
    margin-bottom: 1.5rem;
    letter-spacing: 1px;
}

.hero-subtitle {
    font-size: 1.5rem;
    margin-bottom: 2rem;
    opacity: 0.9;
}

.info-card {
    background: white;
    border-radius: 12px;
    padding: 2rem;
    margin-bottom: 2rem;
    box-shadow: var(--card-shadow);
    transition: transform var(--transition-speed), box-shadow var(--transition-speed);
}

.info-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--hover-shadow);
}

.info-icon {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.info-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--primary-color);
}

.benefits-section {
    padding: 80px 0;
    background: #f8f9fa;
}

.section-title {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
    color: var(--primary-color);
}

.benefits-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    padding: 0 1rem;
}

.benefit-card {
    background: white;
    padding: 2rem;
    border-radius: 12px;
    text-align: center;
    box-shadow: var(--card-shadow);
    transition: transform var(--transition-speed);
}

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

.benefit-card i {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.benefit-card h3 {
    font-size: 1.25rem;
    margin-bottom: 0.5rem;
    color: var(--primary-color);
}

.cta-section {
    background: linear-gradient(135deg, var(--primary-color), #1a2c4e);
    color: white;
    padding: 80px 0;
    text-align: center;
}

.cta-content {
    max-width: 600px;
    margin: 0 auto;
}

.cta-content h2 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.cta-content p {
    font-size: 1.25rem;
    margin-bottom: 2rem;
    opacity: 0.9;
}

/* 响应式优化 */
@media (max-width: 768px) {
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-subtitle {
        font-size: 1.25rem;
    }
    
    .info-card {
        padding: 1.5rem;
    }
    
    .benefits-grid {
        grid-template-columns: 1fr;
    }
    
    .cta-content h2 {
        font-size: 2rem;
    }
}

/* 图片懒加载占位符 */
.lazy-image {
    opacity: 0;
    transition: opacity var(--transition-speed);
}

.lazy-image.loaded {
    opacity: 1;
}

/* 交互优化 */
.custom-btn {
    transition: transform var(--transition-speed), box-shadow var(--transition-speed);
}

.custom-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(35, 64, 110, 0.2);
}

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

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

/* 高亮文本样式 */
.highlight {
    position: relative;
    color: var(--primary-color);
    font-weight: 600;
    padding: 0 2px;
}

.highlight::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 8px;
    background-color: var(--highlight-bg);
    z-index: -1;
    transition: height var(--transition-speed);
}

.highlight:hover::after {
    height: 100%;
}