:root {
    --primary: #00ffcc;
    --accent: #ff4d4f;
    --bg-dark: #0d1018;
    --panel-bg: rgba(20, 24, 35, 0.95);
    --border: rgba(255, 255, 255, 0.1);
}

* { box-sizing: border-box; margin: 0; padding: 0; outline: none; }
body { background: var(--bg-dark); color: #fff; font-family: 'Noto Sans SC', sans-serif; overflow: hidden; height: 100vh; }

/* 🌌 毛玻璃背景 */
.bg-vortex {
    position: fixed; inset: 0; z-index: -1;
    background-size: cover; background-position: center;
    filter: blur(60px) brightness(0.3); transform: scale(1.1);
    transition: 0.8s;
}

/* ⚔️ 维度隔离核心 */
.container { display: grid; height: 100vh; }

/* 🚀 PC 旗舰布局 */
@media (min-width: 1024px) {
    .mobile-only { display: none !important; }
    .container { grid-template-columns: 320px 1fr 380px; }
    .main-content { display: contents !important; }
    .view-section { display: flex !important; flex-direction: column; background: rgba(0,0,0,0.2); border-right: 1px solid var(--border); padding: 20px; }
    
    /* PC 搜索触发器 */
    .sidebar-search-pc { margin-bottom: 20px; }
    .search-trigger {
        background: rgba(255,255,255,0.05); padding: 12px; border-radius: 12px;
        display: flex; align-items: center; gap: 10px; color: rgba(255,255,255,0.4);
        cursor: pointer; transition: 0.3s; border: 1px solid transparent;
    }
    .search-trigger:hover { background: rgba(255,255,255,0.1); border-color: var(--primary); color: #fff; }
}

/* 📱 手机端布局 */
@media (max-width: 1023px) {
    .pc-only { display: none !important; }
    .view-section { display: none; height: 100vh; padding: 20px; }
    .view-section.active { display: flex !important; }
    .mobile-header { display: flex; justify-content: space-between; align-items: center; padding: 15px 20px; background: var(--bg-dark); }
    .mobile-nav { position: fixed; bottom: 0; width: 100%; height: 70px; background: var(--panel-bg); display: flex; justify-content: space-around; align-items: center; backdrop-filter: blur(20px); border-top: 1px solid var(--border); }
}

/* 💿 旋转盘 */
.album-disc {
    width: 280px; height: 280px; margin: 40px auto; border-radius: 50%;
    border: 10px solid #1a1d24; box-shadow: 0 0 40px rgba(0,0,0,0.6);
    animation: rotate 20s linear infinite; animation-play-state: paused;
}
@keyframes rotate { from { transform: rotate(0); } to { transform: rotate(360deg); } }

/* 🔍 搜索层 (全量) */
.search-overlay {
    position: fixed; inset: 0; background: rgba(13, 16, 24, 0.98);
    backdrop-filter: blur(30px); z-index: 9999; display: none; flex-direction: column; padding: 20px;
}
.search-overlay.active { display: flex; }
.search-bar { display: flex; align-items: center; gap: 15px; background: rgba(255,255,255,0.05); padding: 10px 20px; border-radius: 15px; }
.search-bar input { background: none; border: none; color: #fff; flex: 1; font-size: 1.1rem; }
.search-bar button { background: var(--primary); border: none; padding: 8px 15px; border-radius: 8px; font-weight: bold; }

/* 列表条目 */
.list-item { display: flex; align-items: center; gap: 15px; padding: 12px; border-bottom: 1px solid var(--border); cursor: pointer; }
.list-item:hover { background: rgba(255,255,255,0.05); }
.fa-heart.active { color: var(--accent); }