/* 通用樣式 */
body, html {
    margin: 0;
    padding: 0;
}

a {
    text-decoration: none;
}

/* 電腦版樣式 */
.hero-desktop {
    display: block;
    /*background: url('/images/青創小聚/青創小聚主視覺Banner.png') center center;*/
    background: url('https://storage.googleapis.com/sanxiajci/businessmarket/%E9%9D%92%E5%89%B5%E5%B0%8F%E8%81%9A%E4%B8%BB%E8%A6%96%E8%A6%BABanner.png') center center;
    background-size: cover;
    background-repeat: no-repeat;
    min-height: 100vh;
    position: relative;
}

/* 黑底倒數區塊（通用） */
.countdown-box {
    background-color: black;
    color: white;
    padding: 30px 40px;
    border-radius: 10px;
    text-align: center;
    min-width: 280px;
    margin: 0 auto;
    box-shadow: 0 4px 12px rgba(0,0,0,0.5);
    font-size: 18px;
    font-weight: 500;
    z-index: 10;
}

/* 白底招商區塊（通用） */
.recruit-link-box {
    background-color: white;
    color: #007BBA;
    padding: 15px 25px;
    border-radius:10px;
    min-width: 280px;
    margin: 0 auto;
    text-align: center;
    font-weight: 600;
    font-size: 18px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.15);
    z-index: 10;
}

    /* 招商按鈕內文字連結 */
    .recruit-link-box a {
        color: #007BBA;
        text-decoration: none;
    }

/* 時間與倒數字樣 */
.countdown-time {
    font-size: 24px;
    font-weight: bold;
    margin-top: 10px;
}

/* 手機版樣式 */
.hero-mobile {
    margin-top: 50px;
    display: none;
    /*background: url('/images/青創小聚/青創小聚主視覺MobileBanner.png') top center;*/
    background: url('https://storage.googleapis.com/sanxiajci/businessmarket/%E9%9D%92%E5%89%B5%E5%B0%8F%E8%81%9A%E4%B8%BB%E8%A6%96%E8%A6%BAMobileBanner.png') top center;
    background-size: cover;
    background-repeat: no-repeat;
    background-color: #000;
    min-height: 100vh;
    min-width: 100%;
    text-align: center;
    padding: 80px 20px 120px;
    box-sizing: border-box;
}
/* 手機版倒數與招商整體包裝容器 */
.mobile-countdown-wrapper {
    position:relative;
    top:180px;
    display: flex;
    flex-direction: column; /* 垂直排列 */
    align-items: center; /* 內容水平置中 */
    gap: 0; /* 元素間距（可自行調整） */
    width: 100%;
}

/* 響應式切換 */
@media (max-width: 996px) {
    .hero-desktop {
        display: none;
    }

    .hero-mobile {
        display: block;
    }
}
* {
    box-sizing: border-box;
}

/*卡片輪播效果*/
.carousel-wrapper {
    max-width: 90%;
    margin: auto;
    position: relative;
    padding: 0 40px; /* 預留按鈕空間 */
    box-sizing: border-box;
}
.carousel-track {
    position: relative;
    height: 450px;
    width: 90%;
    margin: 0 auto; /* 水平置中 */
}
.carousel-darkcard {
    top: 50px;
    position: absolute;
    width: 300px;
    height: 400px;
    padding: 24px;
    background: linear-gradient(145deg, #212f45, #1e2b40); /* 更深色質感 */
    border-radius: 20px;
    box-shadow: inset 0 0 12px rgba(255, 255, 255, 0.02), 0 12px 28px rgba(0, 0, 0, 0.45), 0 0 12px rgba(80, 120, 180, 0.08);
    backdrop-filter: blur(3px);
    border: 1px solid rgba(255, 255, 255, 0.05);
    transition: transform 0.6s ease, opacity 0.6s ease, left 0.6s ease;
    color: #a8774f;
    overflow: hidden;
}

    .carousel-darkcard::before {
        content: "";
        position: absolute;
        top: 0;
        right: 0;
        height: 100%;
        width: 100%;
        background: linear-gradient(to bottom, rgba(200, 240, 255, 0.2), transparent) 0 0 no-repeat, linear-gradient(to left, rgba(200, 240, 255, 0.2), transparent) 100% 0 no-repeat;
        background-size: 100% 1px, 1px 100%;
        pointer-events: none;
        z-index: 2;
        mix-blend-mode: soft-light;
    }

    .carousel-darkcard h5 {
        margin-top: 12px;
        font-size: 1.2rem;
        color: #f3b97a;
        letter-spacing: 0.6px;
        text-shadow: 0 0 4px rgba(128, 200, 255, 0.2);
    }

    .carousel-darkcard p {
        font-size: 0.95rem;
        color: #a8774f;
        margin-top: 0.5rem;
        line-height: 1.5;
        text-shadow: 0 0 2px rgba(0, 0, 0, 0.2);
    }

    .carousel-darkcard img {
        width: 100%; /* 圖片寬度填滿卡片 */
        height: 160px; /* 強制高度限制 */
        object-fit: cover; /* 超過比例自動裁切（保持圖片填滿不變形） */
        border-radius: 10px;
        box-shadow: 0 6px 14px rgba(0, 150, 255, 0.15);
        transition: transform 0.3s ease;
        display: block; /* 移除下方空隙 */
    }


    .carousel-darkcard:hover img {
        transform: scale(1.03);
    }

/* 改用 left 定位 */
.card-left {
    left: 0%;
    transform: scale(0.9);
    opacity: 0.3;
    z-index: 1;
}

.card-r-center {
    left: 50%;
    transform: translateX(-50%) scale(1.05);
    opacity: 1;
    z-index: 3;
}

.card-l-center {
    left: 50%;
    transform: translateX(-50%) scale(1.05);
    opacity: 1;
    z-index: 3;
}

.card-right {
    left: 100%;
    transform: translateX(-100%) scale(0.9);
    opacity: 0.3;
    z-index: 1;
}

.card-out-l {
    left: -100%;
    transform: scale(0.7);
    opacity: 0;
}

.card-out-r {
    left: 200%;
    transform: scale(0.7);
    opacity: 0;
}

.card-new-l {
    left: -100%;
    transform: scale(0.7);
    opacity: 0;
}

.card-new-r {
    left: 200%;
    transform: scale(0.7);
    opacity: 0;
}

.nav-btn {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    font-size: 2.2rem;
    background-color: transparent;
    border: none;
    color: #1e2b40;
    padding: 0.5rem 1rem;
    cursor: pointer;
    z-index: 10;
    transition: color 0.3s ease, transform 0.3s ease;
}

    .nav-btn:hover {
        color: #212f45;
        transform: translateY(-50%) scale(1.1);
    }

.left-btn {
    left: 0px;
}

.right-btn {
    right: 0px;
}

/* 手機版只顯示中間卡 */
@media (max-width: 500px) {
    .card-left,
    .card-right {
        display: none;
    }

    .card-center {
        left: 50%;
        transform: translateX(-50%) scale(1.0);
    }

    .card-r-center,
    .card-l-center {
        left: 50%;
        transform: translateX(-50%) scale(1.0);
    }
}

/* 卡片翻轉效果 */
/* ✅ 加上這段來支援 card 寬度與置中 */
.row > .flip-card {
    width: 100%;
    display: flex;
    justify-content: center;
}

.flip-card {
    width: 100%;
    max-width: 340px; /* 自訂最大寬度可加可不加 */
}

/* 卡片本體 */
.flip-card {
    background-color: transparent;
    width: 100%;
    perspective: 1000px;
    cursor: pointer;
}
    .flip-card:hover {
        transform: scale(1.05);
        z-index: 10;
    }


/* 內部翻轉層 */
.flip-card-inner {
    position: relative;
    width: 100%;
    padding-top: 100%; /* 正方形 */
    transition: transform 0.8s;
    transform-style: preserve-3d;
}

/* 滑過時翻轉 */
.flip-card:hover .flip-card-inner {
    transform: rotateY(180deg);
}

.flip-card-front, .flip-card-back {
    position: absolute;
    width: 100%;
    height: 100%;
    backface-visibility: hidden;
    top: 0;
    left: 0;
    /*border: 1px solid #ccc;*/
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.25);
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    padding: 20px;
    transition: background 0.4s ease-in-out;
    background: linear-gradient(145deg, #293a57, #1e2b40);
    color: #ffffff;
    backdrop-filter: blur(6px);
}

/*.flip-card-front,
.flip-card-back {
    background-color: #1e2b40;
    color: white;
    display: flex;
}
*/
/* ====== 正面設計強化 ====== */
/*.flip-card-front {
    background: linear-gradient(145deg, #1e2b40, #293a57);
    position: relative;
}
*/
    /* 裝飾圓形（右上角） */
    .flip-card-front::before {
        content: '';
        position: absolute;
        top: -400px;
        right: -400px;
        width: 650px;
        height: 650px;
        background: rgba(255, 255, 255, 0.03);
        border-radius: 50%;
        z-index: 0;
    }
    /* 反光效果遮罩 */
    /*120deg 控制光線傾斜角度（越大越斜）
    rgba(255,255,255,0.3) 控制光線亮度
    animation: 5s linear infinite 每 5 秒播放一次，可改為 8s 更柔和
    rotate(25deg) 必須和 gradient 角度搭配，確保掃過角度一致
    */
    .flip-card-front::after {
        content: "";
        position: absolute;
        top: -50%;
        left: -75%;
        width: 150%;
        height: 150%;
        background: linear-gradient(
        /*45deg,*/ /* ← 由左下刷向右上 */
        315deg, /* ↖ 右下到左上 */
        rgba(255, 255, 255, 0) 37%, rgba(255, 255, 255, 0.4) 50%, rgba(255, 255, 255, 0) 75% );
        transform: rotate(0deg);
        animation: shineEffect 5s linear infinite;
        pointer-events: none;
        z-index: 2;
    }

    /* 前景內容讓裝飾不干擾文字 */
    .flip-card-front > * {
        position: relative;
        z-index: 1;
    }

    .flip-card-front h5 {
        font-size: 1.3rem;
        font-weight: 600;
        margin-bottom: 0.5rem;
        line-height: 1.4;
    }

    .flip-card-front p {
        font-size: 0.95rem;
        line-height: 1.5;
        opacity: 0.9;
        margin: 0;
    }


.flip-card-back {
    background: #ff9966;
    transform: rotateY(180deg);
}

/*Flip-front反光效果*/
@keyframes shineEffect {
    0% {
        /*transform: translateX(-100%);*/
        transform: translateX(100%);
        opacity: 0;
    }

    10% {
        opacity: 1;
    }

    20% {
        /*transform: translateX(100%);*/
        transform: translateX(-100%);
        opacity: 0;
    }

    100% {
        /*transform: translateX(100%);*/
        transform: translateX(-100%);
        opacity: 0;
    }
}

/*自動翻轉特效*/
@keyframes subtleFlip {
    0% {
        transform: rotateY(0deg);
    }

    50% {
        transform: rotateY(50deg);
    }

    100% {
        transform: rotateY(0deg);
    }
}

.auto-tilt {
    animation: subtleFlip 0.8s ease-in-out;
}

/* 手機版 */
@media (max-width: 768px) {
    .flip-grid {
        display: flex;
        flex-wrap: nowrap;
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
    }

    .flip-card {
        flex: 0 0 auto;
        width: 150px;
    }

        .flip-card:hover .flip-card-inner {
            transform: none; /* 禁止 hover 翻轉 */
        }

        .flip-card.clicked .flip-card-inner {
            transform: rotateY(180deg);
        }
}