/* 登录页轮播样式（配合 js/login-carousel.js） */
#login-carousel {
    overflow: hidden;
}

.login-carousel-slide {
    position: absolute;
    inset: 0;
    background-size: cover;
    background-position: center;
    opacity: 0;
    transition: opacity 0.8s ease;
}

.login-carousel-slide.is-active {
    opacity: 1;
}

.login-carousel-slogan {
    position: absolute;
    left: 50%;
    bottom: 12%;
    transform: translateX(-50%);
    max-width: 90%;
    padding: 12px 26px;
    border-radius: 12px;
    background: rgba(0, 0, 0, 0.45);
    color: #fff;
    font-size: 22px;
    line-height: 1.6;
    letter-spacing: 1px;
    text-align: center;
    opacity: 1;
    transition: opacity 0.5s ease;
}

.login-carousel-slogan.is-fading {
    opacity: 0;
}