/* ================= 原生轮播图容器 ================= */
        .hero-carousel {
            position: relative;
            width: 100%;
            height: 100vh; /* 全屏高度 */
            overflow: hidden;
            background: #000;
        }

        /* 轨道：容纳所有幻灯片 */
        .carousel-track {
            display: flex;
            width: 100%;
            height: 100%;
            transition: transform 0.6s cubic-bezier(0.25, 1, 0.5, 1); /* 平滑过渡 */
        }

        /* 单张幻灯片 */
        .carousel-slide {
            min-width: 100%;
            height: 100%;
            position: relative;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        /* 背景图片 */
        .slide-bg {
            position: absolute;
            top: 0; left: 0;
            width: 100%;
             height: 100%;
            object-fit: cover;
            object-position: top;
            z-index: 1;
            opacity: 0; /* 默认隐藏，用于淡入效果 */
            transition: opacity 1s ease;
        }
        .carousel-slide.active .slide-bg {
            opacity: 1; /* 激活时显示 */
        }

        /* 内容层 */
        .slide-content {
            position: relative;
            z-index: 2;
            text-align: center;
            color: #fff;
            max-width: 1200px;
            padding: 0 20px;
            transform: translateY(30px);
            opacity: 0;
            transition: all 0.8s ease 0.3s; /* 延迟显示，产生动效 */
        }
        .carousel-slide.active .slide-content {
            transform: translateY(0);
            opacity: 1;
        }

        /* 文字样式 */
        .slide-subtitle {
            font-size: 2rem;
            font-weight: 300;
            color: #8B0000; /* 品牌红 */
            margin-bottom: 15px;
            display: block;
            text-shadow: 0 2px 10px rgba(0,0,0,0.3);
        }
        .slide-title {
            font-size: 4.5rem;
            font-weight: 900;
            color: #8B0000;
            line-height: 1.2;
            margin-bottom: 20px;
            text-shadow: 0 4px 20px rgba(0,0,0,0.4);
        }
        .slide-brand {
            font-size: 8rem;
            font-weight: 900;
            color: rgba(139, 0, 0, 0.9);
            letter-spacing: 10px;
            text-shadow: 0 4px 20px rgba(0,0,0,0.4);
        }

        /* 导航按钮 (左右箭头) */
        .carousel-btn {
            position: absolute;
            top: 50%;
            transform: translateY(-50%);
            width: 50px;
            height: 50px;
            background: rgba(255, 255, 255, 0.8);
            border: none;
            border-radius: 50%;
            cursor: pointer;
            z-index: 10;
            display: flex;
            align-items: center;
            justify-content: center;
            transition: all 0.3s;
            box-shadow: 0 4px 15px rgba(0,0,0,0.2);
        }
        .carousel-btn:hover {
            background: #fff;
            transform: translateY(-50%) scale(1.1);
        }
        .carousel-btn.prev { left: 30px; }
        .carousel-btn.next { right: 30px; }
        
        /* 箭头图标 (CSS绘制) */
        .carousel-btn::after {
            content: '';
            display: block;
            width: 10px; height: 10px;
            border-top: 2px solid #8B0000;
            border-right: 2px solid #8B0000;
        }
        .carousel-btn.prev::after { transform: rotate(-135deg); margin-left: -2px; }
        .carousel-btn.next::after { transform: rotate(45deg); margin-right: -2px; }

        /* 分页指示器 (小圆点) */
        .carousel-dots {
            position: absolute;
            bottom: 40px;
            left: 50%;
            transform: translateX(-50%);
            display: flex;
            gap: 12px;
            z-index: 10;
        }
        .dot {
            width: 12px;
            height: 12px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.5);
            cursor: pointer;
            transition: all 0.3s;
            border: 2px solid transparent;
        }
        .dot.active {
            background: #8B0000;
            transform: scale(1.2);
            border-color: #fff;
        }
        .dot:hover {
            background: rgba(255, 255, 255, 0.8);
        }

        /* 响应式调整 */
        @media (max-width: 1024px) {
            .slide-title { font-size: 3rem; }
            .slide-brand { font-size: 5rem; }
            .carousel-btn { width: 40px; height: 40px; }
        }
        @media (max-width: 768px) {
            .slide-subtitle { font-size: 1.5rem; }
            .slide-title { font-size: 2.2rem; }
            .slide-brand { font-size: 3.5rem; letter-spacing: 5px; }
            .carousel-btn { display: none; } /* 移动端隐藏箭头，只保留滑动或自动 */
            .carousel-dots { bottom: 20px; }
        }