.scene-container {
        width: 550px;
        height: 500px;
        position: relative;
        display: flex;
        justify-content: center;
        align-items: center;
    }

    /* --- 圖層與初始狀態 --- */

    .scene-bg {
        position: absolute;
        width: 100%;
        height: 100%;
        object-fit: cover;
        z-index: 1;
        opacity: 0;
    }

    #particles-js {
        position: absolute;
        width: 100%;
        height: 100%;
        z-index: 5;
        opacity: 0;
        transition: opacity 1.2s ease;
    }

    #particles-js.visible {
        opacity: 1;
    }

    .implant-main {
        position: relative;
        z-index: 3;
        width: 100%;
        opacity: 0;
        /* 初始狀態為透明 */
    }

    /* --- 動畫觸發 Class --- */
    .animate-bg-in {
        animation: bg-fade-in-scale-up 1.5s ease-out forwards;
    }

    .animate-implant-in {
        animation: implant-spin-in 1s ease-out forwards;
    }

    /* 懸浮動畫 Class (已修正) */
    .animate-implant-loop {
        opacity: 1;
        /* 關鍵修正：確保在循環動畫時，元素保持可見 */
        animation: float-subtle 4s ease-in-out infinite;
    }

    /* --- Keyframes 定義 --- */

    /* 背景進場 */
    @keyframes bg-fade-in-scale-up {
        from {
            transform: scale(0.8);
            opacity: 0;
        }

        to {
            transform: scale(1);
            opacity: 1;
        }
    }

    /* 植體進場 */
    @keyframes implant-spin-in {
        from {
            transform: scale(0.1) rotate(-180deg);
            opacity: 0;
        }

        to {
            transform: scale(1) rotate(0deg);
            opacity: 1;
        }
    }

    /* 植體持續懸浮 */
    @keyframes float-subtle {

        0%,
        100% {
            transform: translateY(0);
        }

        50% {
            transform: translateY(-15px);
        }
    }

    @media screen and (min-width: 991px) and (max-width: 1200px) {
        .scene-container {
            width: 420px;
            height: 420px;
            position: relative;
            display: flex;
            justify-content: center;
            align-items: center;
        }

        .hero .hero_item {
            width: 320px;
        }
    }
    @media only screen and (max-width : 991px) {
        .scene-container {
            width: 320px;
            height: 320px;
            max-width: 100%;
            position: relative;
            display: flex;
            justify-content: center;
            align-items: center;
        }
        .scene-container img,
        .scene-container canvas{
            max-width: 320px;
        }
        .hero .hero_item {
            width: 100%;
            height: auto;
            max-width: 320px;
            padding-top: 0px;
            left: 0;
        }
    }

/* banner擴充輪播 */
.hero_item {
    position: absolute;
    opacity: 0;
    transition: opacity 1.5s ease-in-out; /* 淡入淡出時間 */
    z-index: 1;
}

/* 當圖片有 active class 時顯示 */
.hero_item.active {
    opacity: 1;
    z-index: 2;
}

/* 為了維持你原本的懸浮動畫，可以將動畫套在 active 上 */
.hero_item.active.animate-implant-loop {
    animation: your-float-animation 3s infinite ease-in-out; 
}


/* 新區塊 */
/* 舒適美 品牌視覺優化 CSS */

/* 1. EECP 脈動效果：模擬心跳與血流律動 */
.pulse-eecp {
    position: relative;
    overflow: hidden;
}
.pulse-eecp::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle, rgba(255,0,0,0.1) 0%, rgba(255,255,255,0) 70%);
    transform: translate(-50%, -50%) scale(0.8);
    animation: heartbeat 2s infinite ease-in-out;
    pointer-events: none;
}

@keyframes heartbeat {
    0% { transform: translate(-50%, -50%) scale(0.8); opacity: 0.5; }
    50% { transform: translate(-50%, -50%) scale(1.1); opacity: 0.8; }
    100% { transform: translate(-50%, -50%) scale(0.8); opacity: 0.5; }
}

/* 2. 玻璃擬態卡片：招募區塊使用 */
.glass-card {
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 20px;
    transition: all 0.3s ease;
}
.glass-card:hover {
    background: rgba(255, 255, 255, 0.1);
    transform: translateY(-10px);
    box-shadow: 0 15px 35px rgba(0,0,0,0.5);
}

/* 3. 淨光艙 發光文字特效 */
.glow-text-red {
    color: #fe0160;
    text-shadow: 0 0 10px rgba(255, 77, 77, 0.5), 0 0 20px rgba(255, 77, 77, 0.3);
    animation: glow-pulse 3s infinite;
}

@keyframes glow-pulse {
    0%, 100% { text-shadow: 0 0 10px rgba(255, 77, 77, 0.5); }
    50% { text-shadow: 0 0 20px rgba(255, 77, 77, 0.8), 0 0 30px rgba(255, 77, 77, 0.4); }
}

/* 4. 招募按鈕 脈衝擴散 */
.btn-pulse-warning {
    box-shadow: 0 0 0 0 rgba(255, 193, 7, 0.7);
    animation: pulse-yellow 2s infinite;
}

@keyframes pulse-yellow {
    70% { box-shadow: 0 0 0 20px rgba(255, 193, 7, 0); }
    100% { box-shadow: 0 0 0 0 rgba(255, 193, 7, 0); }
}