@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+TC:wght@700&display=swap');

/* 預載入字體 */
@font-face {
    font-family: 'Noto Sans TC';
    font-style: normal;
    font-weight: 500;
    font-display: swap;
    src: local('Noto Sans TC Medium'), local('NotoSansTC-Medium');
}

@font-face {
    font-family: 'Noto Sans TC';
    font-style: normal;
    font-weight: 700;
    font-display: swap;
    src: local('Noto Sans TC Bold'), local('NotoSansTC-Bold');
}

html {
    /* 始終保留滾動條空間，防止模態框開關時導致的寬度變化和抖動 */
    overflow-y: scroll;
    scrollbar-width: thin; /* Firefox */
}

body {
    font-family: "Microsoft JhengHei", "微軟正黑體", arial, sans-serif !important;
    background: #f3f3f3;
    display: flex;
    flex-direction: column;
    min-height: 100vh; /* 保证页面至少撑满视窗高度 */
    width: 100%;
    /* 防止 Bootstrap 模態框開關時的抖動 */
    padding-right: 0 !important;
}

/* 防止 Bootstrap 模態框開啟時自動添加的 padding-right */
body.modal-open {
    overflow: hidden;
    padding-right: 0 !important;
}

.modal {
    padding-right: 0 !important;
}

.header {
    background: linear-gradient(to right, #1a4377, #225593);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
    padding: 0.8rem 0;
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    /* 防止模態框開關時的寬度抖動 */
    padding-right: 0 !important;
}

.header.scrolled {
    background: linear-gradient(to right, rgba(26, 67, 119, 0.85), rgba(34, 85, 147, 0.85));
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
}

.header .container-fluid {
    padding-left: 20px;
    padding-right: 20px;
    max-width: 1400px;
}

.header .navbar-nav {
    gap: 0.5rem;
}

.header .nav-link {
    display: inline-block;
    padding: 0.8rem 1.2rem;
    color: rgba(255, 255, 255, 0.9) !important;
    font-size: 1rem;
    border-radius: 6px;
    transition: all 0.2s ease;
    position: relative;
    white-space: nowrap;
}

.header .nav-link:hover {
    color: #ffffff !important;
    background: rgba(255, 255, 255, 0.1);
    transform: translateY(-1px);
}

.header .nav-link.active {
    font-weight: 600;
    color: #ffffff !important;
    background: rgba(255, 255, 255, 0.15);
}

.header .nav-link .badge {
    position: absolute;
    top: 0;
    right: 0;
    transform: translate(30%, -30%);
    font-size: 0.7rem;
    padding: 0.35em 0.65em;
}

.navbar-brand {
    font-family: 'Noto Sans TC', "Microsoft JhengHei", "微軟正黑體", sans-serif;
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 0.5rem 0;
}

.navbar-brand img {
    width: 32px;
    height: 30px;
    transition: transform 0.3s ease;
}

.navbar-brand:hover img {
    transform: scale(1.1);
}

.navbar-brand .h1 {
    margin-bottom: 0;
    font-size: 1.6rem;
    color: #ffffff;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.15),
                 0 0 20px rgba(255, 255, 255, 0.2);
    letter-spacing: 0.5px;
}

.header .dropdown-menu {
    display: none;
    border: none;
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(10px);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    border-radius: 8px;
    margin-top: 0.5rem;
    padding: 0.5rem;
    min-width: 180px;
    opacity: 0;
    transform: translateY(-10px);
    transition: opacity 0.15s ease-out, transform 0.15s ease-out, visibility 0.15s ease-out;
    visibility: hidden;
    pointer-events: none; /* 初始狀態下不接收滑鼠事件 */
}

.header .dropdown-menu.show {
    display: block;
    opacity: 1;
    transform: translateY(0);
    visibility: visible;
    pointer-events: auto; /* 顯示時接收滑鼠事件 */
}

.header .dropdown-item {
    padding: 0.8rem 1rem;
    border-radius: 4px;
    font-size: 0.95rem;
    transition: all 0.2s ease;
    color: #225593;
}

.header .dropdown-item:hover {
    background: rgba(34, 85, 147, 0.1);
    transform: translateX(5px);
}

.navbar-toggler {
    border: none;
    padding: 0.5rem;
}

.navbar-toggler:focus {
    box-shadow: none;
}

@media (max-width: 576px) {
    .navbar-brand {
        font-size: 0.9rem;
    }
    
    .navbar-brand img {
        width: 30px;
        height: 28px;
    }
    
    .navbar-brand .fs-4 {
        font-size: 1.3rem !important;
    }

    .header .nav-link {
        padding: 0.8rem 1rem;
        border-radius: 4px;
    }

    .header .container-fluid {
        padding-left: 15px;
        padding-right: 15px;
    }
}

main {
    margin-top: 85px;
    flex: 1; /* 使用弹性布局使内容部分占据剩余的可用高度 */
}

.footer {
    background-color: #343a40; /* 你希望的背景颜色 */
    color: white; /* 你希望的文字颜色 */
    text-align: center;
    padding: 20px;
    flex-shrink: 0; /* 防止footer缩小 */
}

.footer a:link, .footer a:visited {
    color: #0dcaf0;
}

/* 下拉選單箭頭旋轉效果 */
.dropdown-toggle::after {
    transition: transform 0.2s;
}
.dropdown-toggle.dropdown-opened::after {
    transform: rotate(180deg);
}