/* 全局設置 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    -webkit-tap-highlight-color: transparent; /* iOS點擊高亮處理 */
}

body {
    background-color: transparent;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    min-height: 100vh;
    /* iOS viewport 高度修復 */
    min-height: -webkit-fill-available;
    display: flex;
    justify-content: center;
    align-items: center;
    overflow-x: hidden;
    /* iOS 彈性滾動處理 */
    -webkit-overflow-scrolling: touch;
    position: fixed;
    width: 100%;
    height: 100%;
}

/* iOS Safari 視口高度修復 */
html {
    height: -webkit-fill-available;
}

/* 外層容器 */
.outer-container {
    width: min(100%, 720px);
    margin: 0 auto;
    padding: 20px;
    overflow: hidden;
    /* iOS 溢出處理 */
    -webkit-overflow-scrolling: touch;
}

.container {
    width: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 15px;
    background-color: transparent;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

.business-card {
    width: 100%;
    max-width: 420px;
    background: transparent;
    position: relative;
    overflow: hidden;
    padding: 0;
    color: white;
    border-radius: 0;
    -webkit-mask-image: -webkit-radial-gradient(white, black);
    mask-image: radial-gradient(white, black);
    /* iOS 圖層處理 */
    -webkit-transform: translateZ(0);
    transform: translateZ(0);
}

.card-content {
    position: relative;
    width: 100%;
    padding-top: 56.25%;
    overflow: hidden;
    border-radius: 0;
    -webkit-mask-image: -webkit-radial-gradient(white, black);
    mask-image: radial-gradient(white, black);
    /* iOS 圖層處理 */
    -webkit-backface-visibility: hidden;
    backface-visibility: hidden;
}

.card-image {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: contain;
    border-radius: 0;
    -webkit-mask-image: -webkit-radial-gradient(white, black);
    mask-image: radial-gradient(white, black);
    /* iOS 圖像渲染優化 */
    -webkit-transform: translateZ(0);
    transform: translateZ(0);
}

/* iOS 特定樣式 */
@supports (-webkit-touch-callout: none) {
    .business-card {
        /* iOS 特定的陰影處理 */
        -webkit-box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
        box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
    }
    
    .card-image {
        /* iOS 圖像優化 */
        -webkit-transform: translate3d(0, 0, 0);
        transform: translate3d(0, 0, 0);
    }
}

.add-button {
    background: #FFD700;
    color: #002B5B;
    border: none;
    padding: 10px 30px;
    border-radius: 35px;
    font-size: 14px;
    cursor: pointer;
    transition: all 0.3s ease;
    min-width: 160px;
    margin: 0;
    position: relative;
    z-index: 1;
    display: flex;
    justify-content: center;
    align-items: center;
    text-decoration: none;
    text-align: center;
}

.add-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 15px rgba(255, 215, 0, 0.4);
}

/* 大屏幕設備 */
@media screen and (min-width: 768px) {
    .outer-container {
        padding: 30px;
    }
}

/* 平板設備 */
@media screen and (max-width: 767px) {
    .outer-container {
        padding: 20px;
    }
}

/* 移動設備 */
@media screen and (max-width: 480px) {
    .outer-container {
        padding: 10px;
    }

    .business-card {
        width: 95%;
        max-width: 360px;
    }

    .card-content {
        padding-top: 177.78%;
    }
}

/* 小屏幕設備 */
@media screen and (max-width: 320px) {
    .outer-container {
        padding: 5px;
    }
}

.button-group {
    display: flex;
    flex-direction: column;
    gap: 15px;
    align-items: center;
    margin: 20px 0;
    width: 100%;
    max-width: 420px;
    text-align: center;
}

.whatsapp-button {
    background: #25D366;  /* WhatsApp 品牌色 */
    color: white;
    border: none;
    padding: 10px 30px;
    border-radius: 35px;
    font-size: 14px;
    cursor: pointer;
    transition: all 0.3s ease;
    min-width: 160px;
    text-decoration: none;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.whatsapp-icon {
    width: 20px;
    height: 20px;
}

.whatsapp-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 15px rgba(37, 211, 102, 0.4);
}