/* 全局样式 */
:root {
    --primary: #2c3e50;
    --secondary: #e74c3c;
    --light: #ecf0f1;
    --header-height: 140px;
}

body {
    padding-top: var(--header-height);
}

.container {
    max-width: 1600px;
    margin: 0 auto;
}

/* 英雄区域 */
.hero {
    background: linear-gradient(rgba(0, 0, 0, 0.7), rgba(0, 0, 0, 0.7)),
    url('https://images.unsplash.com/photo-1551434678-e076c223a692?ixlib=rb-4.0.3&auto=format&fit=crop&w=1350&q=80');
    background-size: cover;
    color: white;
    text-align: center;
    padding: 100px 20px;
}

.hero h1 {
    font-size: 3rem;
    margin-bottom: 20px;
    animation: fadeIn 1.5s;
}

/* 品牌故事 */
.story {
    padding: 80px 0;
    background: var(--light);
}

.story-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 40px;
    align-items: center;
}

.story-img {
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s;
}

.story-img:hover {
    transform: scale(1.03);
}

/* 价值观 */
.values {
    padding: 80px 0;
    text-align: center;
}

.values-title {
    font-size: 2.5rem;
    font-weight: 700;
    color: #cde0f4;
    margin-bottom: 15px;
}

.values-subtitle {
    font-size: 1.2rem;
    color: #cde0f4;
    line-height: 1.6;
}

.values-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 30px;
    margin-top: 50px;
}

.value-card {
    padding: 30px 20px;
    border-radius: 8px;
    background: white;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    opacity: 0; /* 初始隐藏 */
    transition: all 0.3s cubic-bezier(0.25, 0.1, 0.25, 1);
}

.value-card:hover {
    transform: scale(1.05) translateY(-5px); /* 轻微放大+上浮 */
    box-shadow: 0 12px 24px rgba(236, 89, 89, 0.74) !important; /* 阴影增强 */
    border-top: 4px solid #e07c00; /* 悬停时橙色加深 */
}

.value-icon {
    transition: transform 0.3s;
}

.value-card:hover .value-icon {
    transform: rotate(15deg) scale(1.1); /* 图标微旋转+放大 */
}

.value-card h3 {
    transition: color 0.3s;
}

.value-card:hover h3 {
    color: var(--primary); /* 标题变主蓝色 */
}

/* CTA区域 */
.cta {
    padding: 80px 0;
    text-align: center;
    background: var(--primary);
    color: white;
}

.cta-btn {
    display: inline-block;
    padding: 15px 30px;
    background: var(--secondary);
    color: white;
    text-decoration: none;
    border-radius: 50px;
    font-weight: bold;
    margin-top: 30px;
    transition: all 0.3s;
}

.cta-btn:hover {
    background: #c0392b;
    transform: translateY(-3px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.2);
}

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

.fade-in {
    animation: fadeIn 1s forwards;
}

/* 响应式调整 */
@media (max-width: 768px) {
    .hero h1 {
        font-size: 2rem;
    }
}