/* 全局字体 */
body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
}

/* Navbar 深色调整 */
.navbar-dark .navbar-brand span {
    letter-spacing: 0.1em;
}

.site-logo {
    width: 100px;
}

/* 轮播图样式 */
.carousel-item {
    height: 480px;
    min-height: 300px;
    background-position: center;
    background-size: cover;
    position: relative;
    color: #fff;
}

.carousel-overlay {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.45);
}

.carousel-caption-custom {
    position: absolute;
    left: 10%;
    right: 10%;
    bottom: 20%;
    z-index: 2;
    text-align: left;
}

    .carousel-caption-custom h1 {
        font-size: 2.4rem;
        font-weight: 700;
    }

    .carousel-caption-custom p {
        font-size: 1.05rem;
        max-width: 460px;
    }

/* 产品展示 */
.product-card img {
    object-fit: cover;
    height: 180px;
}

/* 深色 footer */
footer {
    background-color: #222;
    color: #ddd;
    border-top: none;
    padding: 1.5rem 0;
    margin-top: 3rem;
    font-size: 0.9rem;
}

    footer .text-muted {
        color: #aaa !important;
    }

    footer a {
        text-decoration: none;
        color: #fff;
    }