/* Rotating image style */
        .carousel-container {
            position: relative;
            width: 100%;
            max-width: 1900px;
            margin: 0 auto;
            overflow: hidden;
            border-radius: 8px;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
        }
        
        .carousel {
            display: flex;
            transition: transform 0.5s ease;
            height: 31.58vw; /* 1900×600像素的比例 (600/1900≈0.3158) */
            max-height: 600px;
        }
        
        .carousel-item {
            min-width: 100%;
            height: 100%;
        }
        
        .carousel-item img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            display: block;
        }
        
        /* left & right arrows */
        .carousel-control {
            position: absolute;
            top: 50%;
            transform: translateY(-50%);
            background-color: rgba(0, 0, 0, 0.5);
            color: white;
            border: none;
            width: 50px;
            height: 50px;
            border-radius: 50%;
            cursor: pointer;
            font-size: 24px;
            display: flex;
            align-items: center;
            justify-content: center;
            transition: background-color 0.3s, opacity 0.3s;
            opacity: 0.7;
            z-index: 10;
        }
        
        .carousel-control:hover {
            background-color: rgba(0, 0, 0, 0.8);
            opacity: 1;
        }
        
        .carousel-control.prev {
            left: 20px;
        }
        
        .carousel-control.next {
            right: 20px;
        }

        /* indicator */
        .carousel-indicators {
            position: absolute;
            bottom: 20px;
            left: 0;
            right: 0;
            display: flex;
            justify-content: center;
            gap: 10px;
            z-index: 10;
        }
        
        .indicator {
            width: 40px;
            height: 4px;
            background-color: rgb(255, 255, 255,0.5);
            border: none;
            cursor: pointer;
            transition: background-color 0.3s;
        }
        
        .indicator.active {
            background-color: white;
        }
        
        .indicator:hover {
            background-color: rgba(255, 255, 255, 0.8);
        }