/* 基礎設定 */
:root {
    --primary-blue: #5C7E9E;
    --primary-green: #6C8D6F;
    --low-sat-blue: #AEC4D9;
    --low-sat-green: #BFCABF;
    --dark-text: #2c3e50;
    --light-text: #ecf0f1;
    --background-color: #f4f1e9;
    --border-color: #c9b19e;
    --shadow-color: rgba(0, 0, 0, 0.1);
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    margin:0;
    padding:0;
    min-height:100vh;
    font-family: 'Times New Roman', Times, serif;
    background-color: var(--background-color);
    color: var(--dark-text);
    line-height: 1.6;
    background-image: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100" opacity="0.1"><line x1="0" y1="0" x2="100" y2="100" stroke="%23c9b19e" stroke-width="0.5" /><line x1="100" y1="0" x2="0" y2="100" stroke="%23c9b19e" stroke-width="0.5" /></svg>');
    background-size: 200px 200px;
}

/* 新增的 Banner 樣式 */
.banner-container {
    width: 100%;
    /* 設定背景色或圖片 */
    background: url(image/202503_AEBBanner_1920x300.gif) top center no-repeat;
    height: 300px;
    display: flex;
    justify-content: center;
    align-items: flex-start;
}

.banner-container img {
    width: 355px;
    height: auto;
    margin-left: 75px;
    margin-top: 10px;
}
.container {
    max-width: 1920px;
    min-height:100vh;
    margin: 0;
    padding:0px;
    background-color: #ffffff;
    position: relative;
}

/* 報紙與哈利波特風格 */
header {
    margin-top: 20px;
    margin-bottom: 20px;
    text-align: center;
}

h2 {
    font-family: 'Garamond', serif;
    font-size: 2.5em;
    color: var(--primary-blue);
    text-shadow: 1px 1px 2px var(--shadow-color);
    margin-bottom: 20px;
}
.content-box h2{margin:-10px auto 5px;text-align:center;font-size: 2em;}

/* 導覽分頁 */
.nav-tabs {
    display: flex;
    justify-content: center;
    gap: 10px;
    margin-bottom: 20px;
}

.nav-tab {
    padding: 12px 25px;
    font-size: 1.1em;
    font-family: 'Times New Roman', Times, serif;
    background-color: var(--low-sat-green);
    color: var(--dark-text);
    border: 1px solid var(--primary-green);
    border-radius: 5px;
    cursor: pointer;
    transition: background-color 0.3s, transform 0.2s;
}

.nav-tab:hover {
    background-color: var(--primary-green);
    color: var(--light-text);
}

.nav-tab.active {
    background-color: var(--primary-blue);
    color: var(--light-text);
    border: 1px solid var(--primary-blue);
    transform: translateY(-2px);
}
main{
    margin:20px;
    min-height:calc(100vh - 300px - 51px - 113px - 40px);}

/* 內容區塊 */
.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
}

.content-box {
    padding: 20px 20px 35px;
    border: 1px solid var(--border-color);
    background-color: #f9f6f0;
    line-height: 1.8;
    position:relative;
}
a.go{
    display: inline-block;
    background: #7a4f27;
    color: #fff;
    border-radius: 8px 0 0 0;
    letter-spacing: 1px;
    padding: 5px 10px;
    text-decoration: none;
    position: absolute;
    right: 0;
    bottom: 0;}
.highline{
    font-size:16px;
    font-weight:bold;
    color:red;    
}

/* 表單樣式 */
.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    font-weight: bold;
    margin-bottom: 8px;
    color: var(--primary-blue);
}

.form-group input,
.form-group select {
    width: 100%;
    padding: 10px;
    border: 1px solid var(--border-color);
    border-radius: 3px;
    font-size: 1em;
    background-color: #fff;
    font-family: inherit;
    transition: border-color 0.3s;
}

.form-group input:focus,
.form-group select:focus {
    border-color: var(--primary-blue);
    outline: none;
}

.required {
    color: red;
    margin-left: 5px;
}

.link-button {
    padding: 10px 15px;
    margin-top: 10px;
    background-color: var(--low-sat-green);
    color: var(--dark-text);
    border: 1px solid var(--primary-green);
    cursor: pointer;
    font-size: 1em;
    transition: background-color 0.3s;
}

.link-button:hover {
    background-color: var(--primary-green);
    color: var(--light-text);
}

.magazine-list-container {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 15px;
    margin-top: 10px;
}
.magazine-item {
    display: flex;
    align-items: center;
    background-color: #e6e3dd;
    padding: 10px;
    border: 1px solid var(--border-color);
    border-radius: 5px;
}

.magazine-item input[type="radio"] {
    margin-right: 10px;
    width: auto;
}

.magazine-item label {
    margin-bottom: 0;
    display: flex;
    align-items: center;
    flex-grow: 1;
}

.magazine-item .magazine-link {
    margin-left: auto;
    padding: 5px 10px;
    background-color: var(--low-sat-blue);
    color: var(--dark-text);
    border: 1px solid var(--primary-blue);
    text-decoration: none;
    font-size: 0.9em;
    transition: background-color 0.3s;
}

.magazine-item .magazine-link:hover {
    background-color: var(--primary-blue);
    color: var(--light-text);
}

.checkbox-group {
    margin-top: 20px;
    display: flex;
    align-items: center;
}

.checkbox-group input[type="checkbox"] {
    width: auto;
    margin-right: 8px;
}

.checkbox-group a {
    color: var(--primary-blue);
    text-decoration: underline;
    cursor: pointer;
}

.submit-button {
    width: 100%;
    padding: 15px;
    background-color: var(--primary-blue);
    color: var(--light-text);
    border: none;
    border-radius: 5px;
    font-size: 1.2em;
    font-weight: bold;
    cursor: pointer;
    margin-top: 20px;
    transition: background-color 0.3s;
}

.submit-button:hover {
    background-color: #4A6C8C;
}


/* 頁腳 */
footer {
    text-align: center;
    padding-top: 20px;
    padding-bottom: 20px;
    border-top: 1px solid var(--border-color);
    font-size: 16px;
    color: var(--dark-text);
}

/* 彈出視窗 (Modal) */
.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    overflow: auto;
    background-color: rgba(0, 0, 0, 0.6);
}

.modal-content {
    background-color: #fefcf5;
    margin: 10% auto;
    padding: 30px;
    border: 2px solid var(--primary-blue);
    width: 80%;
    max-width: 600px;
    border-radius: 8px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
    text-align: center;
}

.modal-content h3 {
    color: var(--primary-blue);
    font-size: 1.8em;
    margin-bottom: 20px;
}

.modal-content p {
    font-size: 1em;
    text-align: left;
    margin-bottom: 15px;
}

#close-modal {
    padding: 12px 25px;
    background-color: var(--primary-blue);
    color: white;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    font-size: 1em;
    margin-top: 20px;
}

#close-modal:hover {
    background-color: #4A6C8C;
}

/* 響應式設計 */
@media screen and (max-width: 768px) {
    .container {
        margin: 0;
        padding: 0
    }
    .nav-tab {
        padding: 10px 15px;
        font-size: 1em;
    }
    h2 {
        font-size: 2em;
    }
    .magazine-list-container {
        grid-template-columns: 1fr;
    }
    .banner-container {
        height: 200px;
        background-size: cover;
    }
    .banner-container img {
        width: 230px;
        margin-left: 50px;
    }
    main{
        margin:20px;
        min-height:calc(100vh - 200px - 51px - 113px - 40px);
    }    
}

@media screen and (max-width: 480px) {
    .banner-container {
        height: 150px;
    }
    .banner-container img {
        width: 180px;
        margin-left: 40px;
        margin-top: 5px;
    }  
    main{
        margin:20px;
        min-height:calc(100vh - 180px - 51px - 113px - 40px);
    }    
}

/* 新增的「回到頂部」按鈕樣式 */
#scrollToTopBtn {
    display: none; /* 預設隱藏按鈕 */
    position: fixed; /* 固定在瀏覽器視窗中 */
    bottom: 20px; /* 距離底部 20px */
    right: 30px; /* 距離右側 30px */
    z-index: 99; /* 確保按鈕在其他元素之上 */
    border: none;
    outline: none;
    background-color: #333; /* 按鈕背景色 */
    color: white; /* 文字顏色 */
    cursor: pointer; /* 鼠標懸停時顯示為手型 */
    padding: 15px;
    border-radius: 10px;
    font-size: 18px;
    transition: background-color 0.3s, opacity 0.3s;
    opacity: 0.8;
}

#scrollToTopBtn:hover {
    background-color: #555;
    opacity: 1;
}