/* 首页导航条悬浮在 banner 上（仅 >=768px，移动端沿用原导航） */
@media screen and (min-width: 768px) {
    .gai.hero-nav {
        position: absolute;
        top: 24px;
        left: 50%;
        transform: translateX(-50%);
        width: min(1400px, calc(100% - 80px));
        z-index: 900;
        background: rgba(28, 30, 36, .72);
        -webkit-backdrop-filter: blur(12px);
        backdrop-filter: blur(12px);
      
        border-radius: 10px;
    
    }

    .gai.hero-nav .menu {
        width: 100%;
        height: 100px;
    }

    .gai.hero-nav .logo {
        flex: 0 0 auto;
        justify-content: flex-start;
        width: auto;
        height: 78px;
        padding-left: 26px;
    }

    .gai.hero-nav .logo a {
        display: flex;
        align-items: center;
        width: auto;
        padding: 0;
        height: 78px;
    }

    .gai.hero-nav .logo a img {
        
        width: auto;
    }

    .gai.hero-nav .menu_dl {
        flex: 0 1 auto;
        width: auto;
        margin-left: auto;
    }

    .gai.hero-nav .menu_tt a {
        background: transparent;
        line-height: 78px;
        padding: 0 24px;
        font-size: 15px;
        letter-spacing: .3px;
        white-space: nowrap;
    }

    .gai.hero-nav .menu_dl dd:hover .menu_tt a,
    .gai.hero-nav .menu_dl dd.hover .menu_tt a {
        background: transparent;
        color: #fbbb13;
    }

    .gai.hero-nav .menuDown,
    .gai.hero-nav .menuDow {
        top: 78px;
        border-radius: 0 0 8px 8px;
    }
}

/* 平板窄屏：收缩间距，保证 6 个菜单项一行放得下 */
@media screen and (min-width: 768px) and (max-width: 1100px) {
    .gai.hero-nav .logo {
        padding-left: 16px;
    }

    .gai.hero-nav .logo a img {
        height: 34px;
    }

    .gai.hero-nav .menu_tt a {
        padding: 0 20px;
        font-size: 13px;
    }
}

@media screen and (min-width: 768px) and (max-width: 950px) {
    .gai.hero-nav .logo a img {
        height: 30px;
    }

    .gai.hero-nav .menu_tt a {
        padding: 0 12px;
        font-size: 12px;
    }
}