/* 平滑滾動效果 */
html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    padding: 0;
}

/* Header 樣式 */
.custom-header {
    background: #fff;
    padding: 15px 0;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
    z-index: 1;
    position: relative;
}

    .custom-header .header-content {
        max-width: 1371px;
        margin: 0 auto;
        padding: 0;
        display: flex;
        align-items: center;
    }

    .custom-header .logo-link {
        display: flex;
        align-items: center;
        text-decoration: none;
        color: #333;
    }

        .custom-header .logo-link img {
            width: 35px;
            margin-right: 10px;
        }

    .custom-header .logo-text {
        font-size: 1.4em;
        font-weight: bold;
    }

/* Banner 區域 */
.banner-wrapper {
    width: 100%;
    background: url('../../images/img_bannerinside.png') center center/cover no-repeat;
    padding: 60px 20px 0 20px;
    text-align: center;
}
.banner-content-box {
    margin: 0 auto;
}
.banner-content {
    max-width: 1371px;
    margin: 0 auto;
    background-color: rgba(255, 255, 255, 0.8);
    padding: 40px 20px 0 20px;
    border-radius: 8px;
}

.banner-title {
    font-size: 32px;
    font-weight: bold;
    color: #333;
    margin-bottom: 30px;
}

.banner-image {
    width: 100%;
    max-width: 1267px;
    margin: 0 auto;
}

/* 主要內容區域 */
.main-content {
    max-width: 1310px;
    margin: 50px auto 10px auto;
    padding: 0 20px;
}

.content-section {
    background: #fff;
    padding: 0;
    border: 1px solid #ededed;
    border-radius: 8px;
    margin-bottom: 30px;
    overflow: hidden;
}
    .content-section img {
        vertical-align: top;
    }
    .content-section h2 {
        font-size: 1.9em;
        font-weight: bold;
        margin: 0;
        padding: 20px 30px;
        color: #6b6b6b;
        background-color: #ededed;
    }

    .content-section .date {
        color: #666;
        margin-bottom: 10px;
    }

    .content-section-body {
        padding: 30px;
        background-color: #fff;
    }

.sidebar-section {
    background: #fff;
    padding: 0;
    border: 1px solid #ededed;
    border-radius: 8px;
    overflow: hidden;
}

    .sidebar-section h4 {
        font-size: 1.9em;
        font-weight: bold;
        margin: 0;
        padding: 20px 30px;
        background-color: #ededed;
        color: #6b6b6b;
    }

    .sidebar-section-body {
        padding: 30px;
        background-color: #fff;
    }

/* 實際畫面展示 */
.gallery-section {
    max-width: 1310px;
    margin: 0 auto 45px auto;
    padding: 0 20px;
}

.gallery-section-wrapper {
    background: #fff;
    padding: 0;
    border: 1px solid #ededed;
    border-radius: 8px;
    overflow: hidden;
}

.gallery-title {
    font-size: 1.9em;
    font-weight: bold;
    margin: 0;
    padding: 20px 30px;
    color: #6b6b6b;
    background-color: #ededed;
}

.gallery-section-body {
    padding: 30px;
    background-color: #fff;
}

.gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 38px;
}

.gallery-item {
    overflow: hidden;
    box-shadow: 0 2px 8px rgba(0,0,0,0.3);
    transition: transform 0.3s ease;
    border: 2px #fff solid;
    max-width: 398px;
    height: 260px;
    position: relative;
}

    .gallery-item:hover {
        transform: translateY(-5px);
        box-shadow: 0 4px 15px rgba(0,0,0,0.2);
    }

    .gallery-item img {
        width: 100%;
        height: 100%;
        display: block;
        object-fit: cover;
        object-position: center top;
    }

/* Footer 樣式 */
.custom-footer {
    background: #f8f9fa;
    padding: 40px 20px;
    margin-top: 60px;
}

.footer-content {
    max-width: 1310px;
    margin: 0 auto;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 160px;
    flex-wrap: wrap;
}

.footer-item {
    display: flex;
    align-items: center;
    gap: 10px;
}

    .footer-item img {
        width: 24px;
        height: 24px;
    }

        .footer-item span {
            color: #666;
            font-size: 14px;
        }

    /* 回到頂部按鈕 */
.back-to-top {
    position: fixed;
    bottom: 40px;
    right: 40px;
    width: 50px;
    height: 50px;
    background-color: #b2b2b2;
    color: #fff;
    border: none;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
    z-index: 1000;
    opacity: 0;
    visibility: hidden;
    text-decoration: none;
}

        .back-to-top.show {
            opacity: 1;
            visibility: visible;
        }

    .back-to-top:hover {
        background-color: #9c9c9c;
        transform: translateY(-5px);
    }

        .back-to-top:active {
            transform: translateY(-2px);
        }

        .back-to-top img {
            width: 24px;
            height: 24px;
        }

        /* CSS 箭頭圖示（如果不使用圖片） */
        .back-to-top.arrow-icon::before {
            content: '';
            width: 12px;
            height: 12px;
            border-left: 3px solid #fff;
            border-top: 3px solid #fff;
            transform: rotate(45deg);
            margin-bottom: -4px;
        }

    @media (max-width: 768px) {
        .banner-title {
            font-size: 24px;
        }

        .footer-content {
            flex-direction: column;
            gap: 20px;
        }

        .back-to-top {
            width: 45px;
            height: 45px;
            bottom: 20px;
            right: 20px;
        }
    }