/* Ver 2.4 響應式優化版 - 北歐工業風色系 (paper.css) */
:root {
    --stone-green: #228B8D; /* 石綠色 */
    --light-gray: #f5f5f5;  /* 淺灰 */
    --dark-gray: #4a4a4a;   /* 深灰 */
    --white-oak: #d9d0c1;   /* 白橡木色 */
    --white: #ffffff;
    --border-color: #e0e0e0;
}

body {
    font-family: 'Noto Sans TC', 'Microsoft JhengHei', sans-serif;
    background-color: var(--light-gray);
    color: var(--dark-gray);
    margin: 0;
    padding: 0;
    line-height: 1.6;
}

.container {
    display: flex;
    max-width: 1150px;
    margin: 80px auto;
    background: var(--white);
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.05);
    overflow: hidden;
}

/* 左側大選單 Sidebar Menu */
.sidebar-menu {
    width: 250px;
    background-color: var(--white);
    border-right: 1px solid var(--border-color);
    padding: 20px 0;
    flex-shrink: 0;
}

.menu-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.menu-list li a {
    display: block;
    padding: 15px 25px;
    text-decoration: none;
    color: var(--dark-gray);
    font-weight: 500;
    transition: all 0.3s ease;
    border-left: 4px solid transparent;
}

.menu-list li a:hover, .menu-list li a.active {
    background-color: rgba(125, 139, 125, 0.1);
    color: var(--stone-green);
    border-left: 4px solid var(--stone-green);
}

/* 右側主內容區 Main Content */
.content-area {
    flex: 1;
    padding: 40px;
}

h1 {
    font-size: 24px;
    color: var(--stone-green);
    margin-top: 0;
    margin-bottom: 20px;
    border-bottom: 2px solid var(--white-oak);
    padding-bottom: 10px;
}

h2.category-title {
    font-size: 20px;
    color: var(--dark-gray);
    margin-top: 30px;
    margin-bottom: 15px;
    padding-left: 10px;
    border-left: 4px solid var(--stone-green);
}

/* 常見問題 - 折疊面板 Accordion */
.faq-item {
    border-bottom: 1px solid var(--border-color);
}

.faq-question {
    width: 100%;
    text-align: left;
    background: none;
    border: none;
    padding: 18px 10px;
    font-size: 16px;
    font-weight: bold;
    color: var(--dark-gray);
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: color 0.3s;
}

.faq-question:hover, .faq-question.active {
    color: var(--stone-green);
}

.faq-question::after {
    content: '+';
    font-size: 20px;
    transition: transform 0.3s;
    color: var(--stone-green);
}

.faq-question.active::after {
    content: '−';
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease-out;
    background-color: #fafafa;
    border-radius: 4px;
}

.faq-answer-inner {
    padding: 15px 20px;
    color: #555;
    line-height: 1.8;
}

/* 表格與區塊樣式 (供取消須知等頁面共用) */
.policy-box {
    background: #fafafa;
    border-left: 4px solid var(--white-oak);
    padding: 15px 20px;
    margin-bottom: 20px;
}

table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 15px;
    margin-bottom: 20px;
}

table, th, td {
    border: 1px solid var(--border-color);
}

th {
    background-color: var(--stone-green);
    color: var(--white);
    padding: 12px 10px;
    text-align: center;
}

td {
    padding: 12px 10px;
    text-align: center;
}

/* 響應式優化 */
@media (max-width: 768px) {
    .container {
        flex-direction: column;
        margin: 20px;
    }
    .sidebar-menu {
        width: 100%;
        border-right: none;
        border-bottom: 1px solid var(--border-color);
    }
    .content-area {
        padding: 20px;
    }
}