/* KAMP 商城样式 - 移动端优先 */

:root {
    --shop-primary: #3b6ce7;
    --shop-bg: #f7f8fc;
    --shop-border: #e8ecf1;
    --shop-text: #2d3748;
    --shop-muted: #718096;
}

body {
    color: var(--shop-text);
    background: #fff;
}

/* 导航 */
.navbar-brand {
    font-size: 1.2rem;
}
.navbar .nav-link {
    font-weight: 500;
    padding: 0.5rem 1rem;
    color: var(--shop-muted);
}
.navbar .nav-link.active {
    color: var(--shop-primary) !important;
}

/* Hero - 柔和渐变，与页面自然衔接 */
.shop-hero {
    background: var(--shop-bg);
    padding: 3.5rem 0 3rem;
    border-bottom: 1px solid var(--shop-border);
}
.shop-hero h1 {
    color: var(--shop-text);
    font-size: 2rem;
}
.shop-hero .lead {
    color: var(--shop-muted);
}
.shop-hero .form-control {
    border: 1px solid var(--shop-border);
    background: #fff;
    box-shadow: 0 1px 4px rgba(0,0,0,0.04);
}
.shop-hero .form-control:focus {
    border-color: var(--shop-primary);
    box-shadow: 0 0 0 3px rgba(59,108,231,0.1);
}

/* 区块 */
.section-light {
    background: var(--shop-bg);
}

/* 商品卡片 */
.product-card {
    border: 1px solid var(--shop-border);
    border-radius: 10px;
    transition: transform 0.2s, box-shadow 0.2s;
    background: #fff;
}
.product-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(0,0,0,0.07);
}
.product-icon {
    text-align: center;
}

/* 科目卡片 */
.subject-card {
    border: 1px solid var(--shop-border);
    border-radius: 10px;
    transition: transform 0.15s, box-shadow 0.15s;
    color: inherit;
    background: #fff;
}
.subject-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0,0,0,0.06);
    color: inherit;
}

/* 页脚 */
.shop-footer {
    background: var(--shop-bg);
    padding: 2.5rem 0 1.5rem;
    margin-top: 3rem;
    border-top: 1px solid var(--shop-border);
}

/* 响应式 */
@media (max-width: 768px) {
    .shop-hero {
        padding: 2rem 0 1.5rem;
    }
    .shop-hero h1 {
        font-size: 1.5rem;
    }
    .shop-hero .lead {
        font-size: 0.9rem;
    }
}