:root {
    --glass-bg: rgba(255, 255, 255, 0.05);
    --glass-border: rgba(255, 255, 255, 0.1);
    --accent-color: #ff4655;
}

body {
    margin: 0;
    font-family: 'Iansui', "Microsoft JhengHei", "PingFang TC", sans-serif;
    background: #0f1923;
    color: white;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.background-glow {
    position: fixed;
    top: 0; left: 0; width: 100%; height: 100%;
    background: radial-gradient(circle at 10% 10%, #3a2656 0%, transparent 50%),
                radial-gradient(circle at 90% 90%, #ff465511 0%, transparent 50%);
    z-index: -1;
}

/* 定義芫荽字體 */
@font-face {
    font-family: 'Iansui';
    src: url('assets/fonts/Iansui.woff2') format('woff2'),
         url('assets/fonts/Iansui-Regular.ttf') format('truetype');
    font-weight: normal;
    font-style: normal;
    font-display: swap; /* 確保在字體載入前先顯示系統字體，避免白屏 */
}

/* 針對所有按鈕與可點擊元素套用芫荽字體 */
button, 
.glass-btn, 
.download-single-btn, 
.sidebar li,
.mode-selector label {
    font-family: 'Iansui', "Microsoft JhengHei", sans-serif;
    letter-spacing: 1px; /* 稍微增加字距，讓中文字體在玻璃質感下更清晰 */
    font-weight: 500;    /* 芫荽字體較細，適度加粗視覺效果較好 */
}

.download-single-btn {
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid var(--glass-border);
    color: white;
    font-family: 'Iansui', sans-serif; /* 套用芫荽 */
    font-size: 1.3rem;                 /* 稍微調大一點點確保易讀性 */
    padding: 6px;
    border-radius: 4px;
    width: 100%;
    cursor: pointer;
    margin-bottom: 10px;
    transition: 0.2s;
}

.container {
    display: flex;
    max-width: 1200px;
    margin: 0 auto;
    padding: 30px 20px;
    gap: 20px;
    flex: 1;
}

.sidebar {
    width: 170px;
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    border-radius: 12px;
    padding: 15px;
    height: fit-content;
    position: sticky;
    top: 20px;
}

.sidebar-title { font-size: 0.85rem; margin-bottom: 12px; border-left: 3px solid var(--accent-color); padding-left: 8px; }
.sidebar ul { list-style: none; padding: 0; }
.sidebar li { padding: 8px 12px; margin-bottom: 4px; font-size: 0.8rem; cursor: pointer; border-radius: 6px; color: rgba(255,255,255,0.5); transition: 0.3s; }
.sidebar li:hover, .sidebar li.active { background: var(--accent-color); color: white; }

.content { flex: 1; }
header h1 { font-size: 1.5rem; margin-bottom: 20px; }
header h2 { font-size: 1.0rem; margin-bottom: 20px; }
.controls { display: flex; flex-direction: column; gap: 15px; margin-bottom: 30px; }
.mode-selector { background: rgba(0,0,0,0.3); padding: 4px; border-radius: 50px; border: 1px solid var(--glass-border); display: inline-block; }
.mode-selector label { padding: 5px 15px; font-size: 0.75rem; cursor: pointer; border-radius: 40px; display: inline-block; }
.mode-selector input { display: none; }
.mode-selector label:has(input:checked) { background: var(--accent-color); }

.agent-grid {
    display: grid;
    grid-template-columns: repeat(5, minmax(120px, 1fr)); 
    gap: 12px;
}

.agent-card {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 10px;
    padding: 12px;
    text-align: center;
}

.agent-card img.main-pic { width: 80%; margin-bottom: 8px; }
.agent-card h3 { font-size: 0.85rem; margin: 5px 0; }

.download-single-btn {
    background: rgba(255,255,255,0.08);
    border: 1px solid var(--glass-border);
    color: white;
    font-size: 0.7rem;
    padding: 6px;
    border-radius: 4px;
    width: 100%;
    cursor: pointer;
    margin-bottom: 10px;
}

.ability-wrap {
    display: flex;
    justify-content: center;
    gap: 4px;
    padding-top: 10px;
    border-top: 1px solid var(--glass-border);
}

.ability-icon { width: 22px; height: 22px; cursor: pointer; opacity: 0.6; transition: 0.2s; }
.ability-icon:hover { opacity: 1; transform: scale(1.1); }

footer { text-align: center; padding: 25px; font-size: 0.8rem; color: rgb(255, 255, 255); border-top: 1px solid var(--glass-border); margin-top: auto; }
.glass-btn.primary { background: var(--accent-color); border: none; padding: 10px 20px; border-radius: 6px; color: white; font-weight: bold; cursor: pointer; }