/**
* head.css
* 
* 作者：莫哥
* 日期：2026/06/01
* 版本：1.0.0
*/
body {
    margin: 0;
    padding: 0;
    overflow-x: hidden;
}
.hero-overlay {
    position: absolute;
    bottom: 20%;
    left: 0;
    width: 100%;
    text-align: center;
    color: #fff;
    text-shadow: 0 2px 10px rgba(0,0,0,0.5);
    pointer-events: none;
}
.hero-overlay h1 {
    font-size: 3.5rem;
    font-weight: 700;
}
.hero-overlay p {
    font-size: 1.5rem;
    opacity: 0.9;
}

/* 导航栏 */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1030;
    background: linear-gradient(180deg, rgba(0, 0, 0, 0.7) 0%, rgba(0, 0, 0, 0) 100%) !important;
    backdrop-filter: blur(3px);
    box-shadow: none !important;
    padding: 0.2rem 1rem;
}
.navbar .navbar-nav .nav-link {
    color: rgba(255, 255, 255, 0.9) !important;
    transition: color 0.3s;
    font-size: 16px;
}
.navbar .navbar-nav .nav-link:hover,
.navbar .navbar-nav .nav-link.active {
    color: #ffffff !important;
    text-shadow: 0 0 10px rgba(255,255,255,0.3);
}
.navbar-brand {
    color: #ffffff !important;
    font-weight: 600;
}
.navbar-toggler {
    border-color: rgba(255,255,255,0.4);
    padding: 6px 10px;
}
.navbar-toggler-icon {
    filter: invert(1) brightness(2);
    width: 1.5em;
    height: 1.5em;
}
.brand-logo-img {
    max-height: 40px;
    object-fit: contain;
}

/* ===== 移动端汉堡菜单优化 ===== */
@media (max-width: 991.98px) {
    .navbar {
        padding: 0.5rem 1rem;
    }
    .navbar-collapse {
        background: rgba(0, 0, 0, 0.85);
        backdrop-filter: blur(8px);
        border-radius: 8px;
        margin-top: 8px;
        padding: 5px 8px;
    }
    .navbar-nav .nav-link {
        font-size: 10px;
        padding: 3px 0;
        border-bottom: 1px solid rgba(255,255,255,0.08);
    }
    .navbar-nav .nav-link:last-child {
        border-bottom: none;
    }
    .navbar-toggler {
        border-color: rgba(255,255,255,0.6);
    }
    .navbar-toggler:focus {
        box-shadow: 0 0 0 2px rgba(255,255,255,0.2);
    }
    .brand-logo-img {
        max-height: 32px;
    }
}