/* --- 糊裡糊途：感官 Noir 風格核心 --- */
:root {
    --guide-yellow: #FFD700; /* 導盲磚亮黃色 */
    --sound-cyan: #00f2ff;   /* 聲音波動青色 */
    --bg-dark: #0a0a0a;      /* 極致黑 */
}

body {
    background-color: var(--bg-dark);
    /* 增加顆粒感背景，模擬視覺噪點 */
    background-image: 
        radial-gradient(circle at 50% 50%, rgba(20, 20, 20, 1) 0%, rgba(0, 0, 0, 1) 100%),
        url('https://www.transparenttextures.com/patterns/carbon-fibre.png'); 
    color: #e0e0e0;
    font-family: "PingFang TC", "Noto Sans TC", "Microsoft JhengHei", sans-serif;
    letter-spacing: 0.08rem;
    line-height: 1.8;
}

/* 導航欄 Logo 樣式 */
.navbar-brand img {
    max-width: 100%;
    height: auto;
    /* 如果 Logo 有發光特效需求，可加入以下濾鏡 */
    filter: drop-shadow(0 0 5px rgba(255, 215, 0, 0.3));
    transition: 0.3s;
}

.navbar-brand img:hover {
    filter: drop-shadow(0 0 10px rgba(255, 215, 0, 0.6));
}

/* 導覽列：毛玻璃效果 */
.navbar {
    background: rgba(0, 0, 0, 0.7) !important;
    backdrop-filter: blur(15px); 
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.navbar-brand {
    font-weight: 900;
    letter-spacing: 3px;
    color: var(--guide-yellow) !important;
    text-shadow: 0 0 10px rgba(255, 215, 0, 0.5);
}

.nav-link {
    color: #888 !important;
    transition: 0.3s;
}

.nav-link:hover, .nav-link.active {
    color: #fff !important;
    text-shadow: 0 0 8px #fff;
}

/* 圖片容器：發光外框 */
.img-container {
    margin-bottom: 2rem;
    border-radius: 12px;
    overflow: hidden;
    border: 1px solid rgba(255, 255, 255, 0.1);
    background: #000;
    transition: all 0.5s ease;
}

.img-container:hover {
    border-color: var(--guide-yellow);
    box-shadow: 0 0 40px rgba(255, 215, 0, 0.2);
}

.img-fluid {
    width: 100%;
    transition: transform 0.4s;
}

/* 互動：模糊文字特效 */
.blurred-intro {
    filter: blur(4px);
    transition: filter 0.8s ease;
    cursor: pointer;
}
.blurred-intro:hover {
    filter: blur(0); 
}

/* 影片區塊 */
.video-section {
    max-width: 850px;
    margin: 3rem auto;
    padding: 15px;
    background: #000;
    /* 將原先的 0, 242, 255 (青色) 改為 255, 215, 0 (黃色) */
    border: 1px solid rgba(255, 215, 0, 0.4); 
    box-shadow: 0 0 50px rgba(255, 215, 0, 0.15);
    border-radius: 20px;
}

/* 成員與老師樣式 */
.member-img {
    width: 140px;
    height: 140px;
    border-radius: 50%;
    object-fit: cover;
    margin-bottom: 1rem;
    border: 3px solid #333;
    transition: 0.3s;
}

.member-card:hover .member-img {
    border-color: var(--guide-yellow);
    box-shadow: 0 0 15px var(--guide-yellow);
}

/* 頁尾 */
.footer {
    background: #000;
    border-top: 1px solid var(--guide-yellow);
    padding: 4rem 0;
    margin-top: 5rem;
}

.social-icons a {
    color: var(--guide-yellow) !important;
    font-size: 1.8rem;
    margin: 0 15px;
    filter: drop-shadow(0 0 5px rgba(255, 215, 0, 0.3));
    transition: 0.3s;
}

.social-icons a:hover {
    transform: translateY(-5px) scale(1.2);
    filter: drop-shadow(0 0 15px rgba(255, 215, 0, 0.8));
}