/* 轮播主容器：满屏、固定高度800px、无圆角、溢出隐藏 */
.ninian-carousel.carousel-container {
    width: 100%;
    height: 800px;
    position: relative;
    overflow: hidden;
    border-radius: 0 !important;
    /* 强制无圆角 */
}

/* 轮播项：绝对定位、全屏覆盖、渐变过渡 */
.ninian-carousel .carousel-item {
    width: 100%;
    height: 100%;
    position: absolute;
    top: 0;
    left: 0;
    opacity: 0;
    transition: opacity 0.6s ease;
    z-index: 1;
}

/* 当前显示的轮播项 */
.ninian-carousel .carousel-item.active {
    opacity: 1;
    z-index: 2;
}

/* 图片/视频样式：全屏填充、不变形、无圆角 */
.ninian-carousel .carousel-item img,
.ninian-carousel .carousel-item video {
    width: 100%;
    height: 100%;
    object-fit: cover;
    /* 关键：保持比例全屏覆盖，不拉伸 */
    border-radius: 0 !important;
    display: block;
}

/* 文字遮罩层：半透明黑色、全屏、文字居中、层级最高 */
.ninian-carousel .text-mask {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.3);
    /* 半透明遮罩 */
    display: flex;
    align-items: center;
    justify-content: center;
    color: #ffffff;
    font-size: 2.8rem;
    font-weight: 500;
    text-align: center;
    padding: 0 20px;
    z-index: 3;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.5);
}

/* 左右切换箭头：默认隐藏、悬停显示、居中定位 */
.ninian-carousel .carousel-arrow {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 60px;
    height: 60px;
    background: rgba(0, 0, 0, 0.4);
    color: #fff;
    border: none;
    border-radius: 0 !important;
    font-size: 24px;
    cursor: pointer;
    z-index: 4;
    display: none;
    /* 默认隐藏 */
    transition: background 0.3s ease;
}

/* 悬停箭头样式 */
.ninian-carousel .carousel-arrow:hover {
    background: rgba(0, 0, 0, 0.7);
}

/* 左右箭头位置 */
.ninian-carousel .prev {
    left: 20px;
}

.ninian-carousel .next {
    right: 20px;
}

/* 容器悬停显示箭头 */
.ninian-carousel.carousel-container:hover .carousel-arrow {
    display: block;
}

/* 底部圆点切换器：居中排列 */
.ninian-carousel .carousel-dots {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 12px;
    z-index: 4;
}

/* 圆点样式 */
.ninian-carousel .dot {
    width: 14px;
    height: 14px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.5);
    cursor: pointer;
    transition: all 0.3s ease;
}

/* 激活状态圆点 */
.ninian-carousel .dot.active {
    background: #ffffff;
    width: 30px;
    border-radius: 7px;
}

/* 移动端响应式适配：调整文字大小 */
@media (max-width: 768px) {
    .ninian-carousel .text-mask {
        font-size: 1.8rem;
        padding: 0 15px;
    }

    .ninian-carousel .carousel-arrow {
        width: 45px;
        height: 45px;
        font-size: 18px;
    }
}

@media (max-width: 480px) {
    .ninian-carousel .text-mask {
        font-size: 1.4rem;
    }
}


.ninian-carousel.carousel-container .text-mask h1 {
    position: relative;
    display: block;
    color: #fff;
    font-size: 90px;
    line-height: 100px;
    font-weight: 700;
    margin-bottom: 36px;
    opacity: 0;
    -webkit-transform: translateY(100px);
    -moz-transform: translateY(100px);
    -ms-transform: translateY(100px);
    -o-transform: translateY(100px);
    transform: translateY(100px);
    -webkit-transition: all 1000ms ease;
    -moz-transition: all 1000ms ease;
    -ms-transition: all 1000ms ease;
    -o-transition: all 1000ms ease;
    transition: all 1000ms ease;
}
.ninian-carousel.carousel-container .active .text-mask h1 {
    opacity: 1;
    -webkit-transform: translateY(0);
    -moz-transform: translateY(0);
    -ms-transform: translateY(0);
    -o-transform: translateY(0);
    transform: translateY(0);
    -webkit-transition-delay: 1000ms;
    -moz-transition-delay: 1000ms;
    -ms-transition-delay: 1000ms;
    -o-transition-delay: 1000ms;
    transition-delay: 1000ms;
}

.ninian-carousel.carousel-container .text-mask p {
    position: relative;
    display: block;
    font-size: 18px;
    line-height: 28px;
    font-weight: 400;
    color: #fff;
    margin-bottom: 48px;
    opacity: 0;
    -webkit-transform: translateY(100px);
    -moz-transform: translateY(100px);
    -ms-transform: translateY(100px);
    -o-transform: translateY(100px);
    transform: translateY(100px);
    -webkit-transition: all 1300ms ease;
    -moz-transition: all 1300ms ease;
    -ms-transition: all 1300ms ease;
    -o-transition: all 1300ms ease;
    transition: all 1300ms ease;
}

.ninian-carousel.carousel-container .active .text-mask p {
    opacity: 1;
    -webkit-transform: translateY(0);
    -moz-transform: translateY(0);
    -ms-transform: translateY(0);
    -o-transform: translateY(0);
    transform: translateY(0);
    -webkit-transition-delay: 1300ms;
    -moz-transition-delay: 1300ms;
    -ms-transition-delay: 1300ms;
    -o-transition-delay: 1300ms;
    transition-delay: 1300ms;
}

.ninian-carousel.carousel-container .text-mask .btn-box {
    position: relative;
    opacity: 0;
    -webkit-transform: translateY(100px);
    -moz-transform: translateY(100px);
    -ms-transform: translateY(100px);
    -o-transform: translateY(100px);
    transform: translateY(100px);
    -webkit-transition: all 1600ms ease;
    -moz-transition: all 1600ms ease;
    -ms-transition: all 1600ms ease;
    -o-transition: all 1600ms ease;
    transition: all 1600ms ease;
}

.ninian-carousel.carousel-container .active .text-mask .btn-box {
    opacity: 1;
    -webkit-transform: translateY(0);
    -moz-transform: translateY(0);
    -ms-transform: translateY(0);
    -o-transform: translateY(0);
    transform: translateY(0);
    -webkit-transition-delay: 1600ms;
    -moz-transition-delay: 1600ms;
    -ms-transition-delay: 1600ms;
    -o-transition-delay: 1600ms;
    transition-delay: 1600ms;
}