.ninian-carousel-container .btn-box {
    position: relative;
    -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-theme-btn {
    position: relative;
    display: inline-block;
    font-size: 15px;
    line-height: 26px;
    font-weight: 700;
    font-family: var(--font-rubika);
    color: #fff !important;
    text-align: center;
    cursor: pointer;
    border-radius: 5px;
    padding: 17px 30px;
    z-index: 1;
    transition: all 500ms ease;
    background: var(--color-primary);
}

.ninian-theme-btn:before {
    position: absolute;
    content: '';
    background: #1c1d1f;
    width: 100%;
    height: 100%;
    border-radius: 5px;
    z-index: -1;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    -webkit-transform: scaleX(0);
    transform: scaleX(0);
    -webkit-transform-origin: 50% 100%;
    transform-origin: 50% 100%;
    -webkit-transition-property: transform;
    transition-property: transform;
    -webkit-transition-duration: 0.5s;
    transition-duration: 0.5s;
    -webkit-transition-timing-function: ease-out;
    transition-timing-function: ease-out;
}

.ninian-theme-btn:hover:before {
    -webkit-transform: scaleX(1);
    transform: scaleX(1);
    -webkit-transition-timing-function: cubic-bezier(0.52, 1.64, 0.37, 0.66);
    transition-timing-function: cubic-bezier(0.52, 1.64, 0.37, 0.66);
}

.ninian-theme-btn i {
    position: relative;
    top: 2px;
    font-size: 20px;
    margin-left: 40px;
}

.ninian-carousel-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    overflow: hidden;
    z-index: 1;
}
.ninian-carousel-container .carousel-wrapper {
    position: relative;
    width: 100%;
    height: 100%;
}

/* 轮播项：淡入淡出动画 */
.ninian-carousel-container .carousel-item {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    transition: opacity 0.8s ease;
    z-index: 0;
}
.ninian-carousel-container .carousel-item.active {
    opacity: 1;
    z-index: 10;
}

/* 图片/视频统一全屏样式 */
.ninian-carousel-container .carousel-item img,
.ninian-carousel-container .carousel-item video {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    object-position: center;
}

/* 文字遮罩层（避开导航栏） */
.ninian-carousel-container .carousel-mask {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    /* background: var(--color-black-tm04); */
    z-index: 15;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    color: #fff;
    text-align: center;
    padding: 20px;
    padding-top: 120px; /* 避开导航栏 */
}
.ninian-carousel-container .mask-title {
    font-size: 52px;
    font-weight: bold;
    margin-bottom: 20px;
    text-shadow: 0 2px 10px var(--color-black-tm05);
    font-family: var(--font-rubika);
}
.ninian-carousel-container .mask-subtitle {
    font-size: 24px;
    /* max-width: 800px; */
    text-shadow: 0 2px 10px var(--color-black-tm05);
    font-family: var(--font-rubika);
}

/* 视频禁用控制栏+右键 */
.ninian-carousel-container .carousel-item video::-webkit-media-controls {
    display: none !important;
}

/* 轮播控制箭头 */
.ninian-carousel-container .carousel-arrow {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 50px;
    height: 50px;
    background: var(--color-black-tm02);
    border: none;
    color: #fff;
    font-size: 24px;
    cursor: pointer;
    z-index: 20;
    transition: background 0.3s;
}
.ninian-carousel-container .carousel-arrow:hover {
    background: var(--color-black-tm06);
}
.ninian-carousel-container .prev-arrow { left: 20px; }
.ninian-carousel-container .next-arrow { right: 20px; }

/* 底部指示器 */
.ninian-carousel-container .carousel-indicators {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 12px;
    z-index: 20;
    margin-left: 0;
}
.ninian-carousel-container .indicator {
    width: 12px;
    height: 12px;
    background: rgba(255, 255, 255, 0.5);
    border-radius: 50%;
    cursor: pointer;
    transition: background 0.3s;
}
.ninian-carousel-container .indicator.active { background: #fff; }

.ninian-carousel-container p,
.ninian-carousel-container h2 {
    color: #fff!important;
}

/* ===================== 移动端适配 ===================== */
@media (max-width: 768px) {
    .ninian-carousel-container .mask-title { font-size: 28px; }
    .ninian-carousel-container .mask-subtitle { font-size: 16px; }
    .ninian-carousel-container .carousel-arrow { width: 40px; height: 40px; font-size: 18px; }
}