/* Main Stylesheet for Chongqi Materials */

:root {
    --primary-color: #0d6efd;
    --secondary-color: #6c757d;
    --dark-color: #212529;
    --light-bg: #f8f9fa;
    --accent-color: #ffc107;
}

body {
    font-family: "Helvetica Neue", Helvetica, Arial, "PingFang SC", "Hiragino Sans GB", "Heiti SC", "Microsoft YaHei", "WenQuanYi Micro Hei", sans-serif;
    color: #333;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

/* Navbar */
.navbar-brand {
    font-weight: 700;
}

.nav-link {
    font-weight: 500;
    color: var(--dark-color);
    transition: color 0.3s;
}

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

/* Hero Section */
.hero-section {
    position: relative;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    height: 600px;
    display: flex;
    align-items: center;
    color: white;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5); /* Overlay to make text readable */
}

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

/* Section Common */
.section-title {
    position: relative;
    padding-bottom: 15px;
    margin-bottom: 30px;
    font-weight: 700;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 3px;
    background-color: var(--primary-color);
}

.section-title.text-start::after {
    left: 0;
    transform: none;
}

/* Feature Icons */
.feature-icon-box {
    padding: 30px;
    border-radius: 8px;
    background: white;
    box-shadow: 0 5px 15px rgba(0,0,0,0.05);
    transition: transform 0.3s;
    height: 100%;
}

.feature-icon-box:hover {
    transform: translateY(-5px);
}

.icon-circle {
    width: 70px;
    height: 70px;
    background: rgba(13, 110, 253, 0.1);
    color: var(--primary-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 28px;
    margin-bottom: 20px;
}

/* Product Cards */
.product-card {
    overflow: hidden;
    border: none;
    box-shadow: 0 4px 10px rgba(0,0,0,0.1);
    transition: box-shadow 0.3s;
}

.product-card:hover {
    box-shadow: 0 10px 20px rgba(0,0,0,0.15);
}

.product-img-wrapper {
    height: 250px;
    overflow: hidden;
}

.product-img-wrapper img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s;
}

.product-card:hover .product-img-wrapper img {
    transform: scale(1.1);
}

/* Footer */
.hover-white:hover {
    color: white !important;
}

/* Responsive */
@media (max-width: 768px) {
    .hero-section {
        height: 400px;
    }
    .hero-title {
        font-size: 1.8rem;
    }
}