.banner {
    background: url("../img/bg4.jpg") top/cover no-repeat;
}

/* 卡片外框 */
.case {
    position: relative;
    isolation: isolate;
    border-radius: var(--radius-xl);
    padding: 18px;
    background: linear-gradient(180deg, rgba(255, 255, 255, .10), rgba(255, 255, 255, .06));
    border: 1px solid rgba(19, 19, 52, .12);
    backdrop-filter: blur(4px) saturate(120%);
    transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
    overflow: hidden;
}

.case::before {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(145deg, var(--F5F7FB), var(--FFFFFF));
    border-radius: inherit;
    box-shadow: var(--shadow-1);
    z-index: -1;
    transition: box-shadow 0.3s ease;
}

.case:hover::before {
    box-shadow: var(--shadow-2);
}

.case:hover {
    transform: translateY(-4px);
    border-color: rgba(163, 207, 235, .28);
}

/* 內部畫布 */
.canvas {
    position: relative;
    height: clamp(220px, 30vw, 450px);
    border-radius: var(--radius-xl);
    overflow: hidden;
    background: linear-gradient(180deg, var(--0F1830), #19253e);
    box-shadow: var(--shadow-2);
    transition: transform .3s ease;
}

/* 疊圖（模擬截圖重疊效果） */
.stack {
    position: absolute;
    inset: 0;
}

.shot {
    position: absolute;
    width: 68%;
    max-width: 560px;
    height: auto;
    box-shadow: var(--shadow-1);
    outline: 1px solid rgba(255, 255, 255, .4);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.shot:hover {
    transform: scale(1.02);
    box-shadow: var(--shadow-2);
}

/* 各設備的堆疊位置 */
.case .shot.tablet {
    left: 5%;
    bottom: 5%;
    width: 30%;
    height: 90%;
    transform: rotate(-1.2deg);
    z-index: 2;
    border-radius: 12px;
}

.case .shot.tablet:hover {
    transform: rotate(-1.2deg) scale(1.02);
}

.case .shot.desktop {
    left: 50%;
    top: 0;
    width: 80%;
    height: 100%;
    transform: translateX(-50%);
    z-index: 1;
}

.case .shot.desktop:hover {
    transform: translateX(-50%) scale(1.02);
}

.case .shot.mobile {
    right: 5%;
    bottom: 15%;
    width: 20%;
    transform: rotate(1.2deg);
    z-index: 3;
    border-radius: 12px;
}

.case .shot.mobile:hover {
    transform: rotate(1.2deg) scale(1.02);
}

/* 標題標籤 */
.label {
    position: absolute;
    left: 50%;
    top: 50%;
    translate: -50% -50%;
    width: min(88%, 560px);
    padding: 18px 22px;
    border-radius: 16px;
    background: linear-gradient(180deg, rgba(19, 19, 52, .85), rgba(19, 19, 52, .75));
    color: var(--FFFFFF);
    font-size: clamp(16px, 2.2vw, 22px);
    font-weight: 800;
    text-align: center;
    backdrop-filter: blur(12px);
    box-shadow: 
        0 10px 32px rgba(0, 0, 0, .4), 
        inset 0 0 0 1px rgba(255, 255, 255, .15),
        0 0 0 1px rgba(163, 207, 235, .2);
    border: 1px solid rgba(255, 255, 255, .1);
    z-index: 10;
    transition: all 0.3s ease;
}

.case:hover .label {
    background: linear-gradient(180deg, rgba(19, 19, 52, .9), rgba(19, 19, 52, .8));
    box-shadow: 
        0 16px 40px rgba(0, 0, 0, .5), 
        inset 0 0 0 1px rgba(255, 255, 255, .2),
        0 0 0 1px rgba(163, 207, 235, .3);
}

/* 互動效果 */
.card-link {
    position: absolute;
    inset: 0;
    z-index: 15;
    cursor: pointer;
}

.case:has(.card-link:hover) .canvas {
    transform: translateY(-2px);
}

/* 角標徽章 */
.badge {
    position: absolute;
    top: 14px;
    right: 14px;
    padding: 8px 12px;
    font-size: 12px;
    font-weight: 800;
    letter-spacing: 0.1em;
    border-radius: var(--radius-pill);
    background: radial-gradient(100% 100% at 30% 20%, var(--ADFFF5), var(--A3CFEB));
    color: var(--0F1830);
    box-shadow: var(--shadow-1);
    border: 1px solid rgba(255, 255, 255, .6);
    z-index: 20;
    transition: all 0.3s ease;
}

.badge:hover {
    transform: translateY(-2px) scale(1.05);
    box-shadow: var(--shadow-2);
}

/* 添加微妙的裝飾光暈 */
.case::after {
    content: "";
    position: absolute;
    top: -80px;
    right: -80px;
    width: 160px;
    height: 160px;
    background: radial-gradient(50% 50% at 50% 50%, var(--A3CFEB), transparent 70%);
    opacity: 0.1;
    pointer-events: none;
    filter: blur(30px);
    transition: opacity 0.3s ease;
}

.case:hover::after {
    opacity: 0.2;
}


/* ------------------
        RWD 響應式設計
   ------------------ */

/* 平板橫向 (1024px 以下) */
@media (max-width: 1024px) {
    .case {
        padding: 18px;
    }
    
    .canvas {
        height: clamp(160px, 40vw, 400px);
    }
    
    .case .shot.desktop {
        width: 80%;
    }
    
    .case .shot.tablet {
        width: 20%;
        left: 8%;
        bottom: 10%;
    }
    
    .case .shot.mobile {
        width: 15%;
        right: 10%;
        bottom: 15%;
    }
    
    .label {
        width: min(92%, 450px);
        padding: 16px 20px;
    }
    
    .case:hover {
        transform: translateY(-10px) scale(1.01);
    }
}

/* 平板直向 (768px 以下) */
@media (max-width: 768px) {
    .case {
        padding: 16px;
    }
    
    .canvas {
        height: clamp(140px, 50vw, 350px);
        margin-bottom: 10px;
    }
    
    .case .shot.desktop {
        width: 75%;
    }
    
    .case .shot.tablet {
        width: 20%;
        left: 5%;
        bottom: 12%;
        transform: rotate(-1.5deg);
    }
    
    .case .shot.mobile {
        width: 16%;
        right: 5%;
        bottom: 18%;
        transform: rotate(2deg);
    }
    
    .case .shot.tablet:hover {
        transform: rotate(-1.5deg) scale(1.06) translateY(-3px);
    }
    
    .case .shot.mobile:hover {
        transform: rotate(2deg) scale(1.08) translateY(-4px);
    }
    
    .label {
        width: min(94%, 380px);
        padding: 14px 18px;
        border-radius: 14px;
    }
    
    .badge {
        top: 12px;
        right: 12px;
        padding: 6px 9px;
        font-size: 10px;
    }
    
    .case:hover {
        transform: translateY(-8px) scale(1.01);
    }
    
    .case-info {
        padding: 10px 6px 0;
    }
}

/* 手機橫向 (640px 以下) */
@media (max-width: 640px) {
    .case {
        padding: 14px;
    }
    
    .label {
        width: min(96%, 320px);
        padding: 12px 16px;
        border-radius: 12px;
        font-size: 14px;
    }
    
    .shot {
        border-radius: 6px;
    }
    
    .case:hover {
        transform: translateY(-6px);
    }
    
    .case-info {
        padding: 8px 4px 0;
        gap: 6px;
    }
    
    .case-tags {
        gap: 4px;
        margin-top: 4px;
    }
    
    .tag {
        padding: 3px 6px;
        font-size: 9px;
    }
}

/* 手機直向 (480px 以下) */
@media (max-width: 480px) {
    .case {
        padding: 12px;
    }

    
    .case .shot:hover {
        transform: scale(1.03);
    }
    
    .case .shot.tablet:hover {
        transform: rotate(-0.5deg) scale(1.05);
    }
    
    .case .shot.mobile:hover {
        transform: rotate(1deg) scale(1.07);
    }
    
    .label {
        width: min(98%, 280px);
        padding: 10px 14px;
        border-radius: 10px;
        font-size: 13px;
    }
    
    .badge {
        top: 10px;
        right: 10px;
        padding: 5px 7px;
        font-size: 9px;
    }
    
    .case:hover {
        transform: translateY(-4px);
    }
    
    .case-info {
        padding: 6px 2px 0;
        gap: 5px;
    }
    
    .case-title {
        font-size: 14px;
    }
    
    .case-desc {
        font-size: 12px;
        -webkit-line-clamp: 1;
    }
}

/* 極小螢幕 (360px 以下) */
@media (max-width: 360px) {
    .case {
        padding: 10px;
    }

    
    .label {
        width: min(100%, 240px);
        padding: 8px 10px;
        font-size: 12px;
    }
    
    .badge {
        top: 8px;
        right: 8px;
        padding: 4px 6px;
        font-size: 8px;
    }
    
    .case-info {
        padding: 4px 0 0;
        gap: 4px;
    }
    
    .case-title {
        font-size: 13px;
    }
    
    .case-desc {
        font-size: 11px;
    }
    
    .tag {
        padding: 2px 5px;
        font-size: 8px;
    }
}