/* 移动端样式 - 现代化设计 */
.mobile-nav {
    display: none;
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: rgba(13, 13, 13, 0.95);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    box-shadow: 0 -1px 20px rgba(0,0,0,0.3);
    z-index: 1000;
    padding: 6px 0;
    padding-bottom: calc(6px + env(safe-area-inset-bottom));
    border-top: 1px solid rgba(0, 255, 136, 0.1);
}
.mobile-nav ul { display: flex; justify-content: space-around; list-style: none; margin: 0; padding: 0; }
.mobile-nav li { flex: 1; }
.mobile-nav a { 
    display: flex; 
    flex-direction: column; 
    align-items: center; 
    color: #71717a; 
    text-decoration: none; 
    font-size: 0.65rem; 
    padding: 6px 0;
    transition: all 0.2s ease;
}
.mobile-nav a i { 
    font-size: 1.3rem; 
    margin-bottom: 3px;
    transition: transform 0.2s ease;
}
.mobile-nav a.active { color: #00ff88; }
.mobile-nav a.active i { transform: scale(1.1); }
.mobile-nav a span { font-weight: 500; }

/* AI 导航按钮 - 圆形突出 */
.mobile-nav .ai-nav-item {
    position: relative;
    flex: 0 0 auto;
    width: 60px;
}
.mobile-nav .ai-nav-btn {
    position: absolute;
    bottom: 8px;
    left: 50%;
    transform: translateX(-50%);
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, #00ff88, #00d4ff);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 15px rgba(0, 255, 136, 0.4);
    color: #0d0d0d !important;
    padding: 0;
}
.mobile-nav .ai-nav-btn i {
    font-size: 1.4rem;
    margin: 0;
    color: #0d0d0d;
}
.mobile-nav .ai-nav-btn.active {
    box-shadow: 0 4px 20px rgba(0, 255, 136, 0.6);
}
.mobile-nav .ai-nav-btn:active {
    transform: translateX(-50%) scale(0.95);
}

/* 快捷菜单弹窗 */
.quick-menu-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0,0,0,0.5);
    z-index: 1001;
}
.quick-menu-overlay.show {
    display: block;
}
.quick-menu {
    display: none;
    position: fixed;
    bottom: 80px;
    left: 50%;
    transform: translateX(-50%);
    background: rgba(30,30,30,0.95);
    backdrop-filter: blur(10px);
    border-radius: 20px;
    padding: 20px 25px;
    z-index: 1002;
    flex-direction: row;
    gap: 25px;
}
.quick-menu.show {
    display: flex;
}
.quick-menu-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-decoration: none;
    color: #fff;
}
.quick-menu-icon {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 8px;
}
.quick-menu-icon i {
    font-size: 1.2rem;
    color: #fff;
}
.quick-menu-item span {
    font-size: 0.75rem;
    color: #a1a1aa;
}

/* 移动端页脚链接 */
.mobile-footer-links {
    display: none;
    text-align: center;
    padding: 15px;
    margin-bottom: 70px;
    border-top: 1px solid rgba(255,255,255,0.1);
}
.mobile-footer-links a {
    color: #71717a;
    font-size: 0.8rem;
    margin: 0 10px;
    text-decoration: none;
}
.mobile-footer-links a:hover {
    color: #00ff88;
}

@media (max-width: 768px) {
    body { padding-bottom: 70px; }
    .mobile-nav { display: block; }
    .mobile-footer-links { display: block; }
    .navbar .navbar-nav.me-auto { display: none !important; }
    .container { padding: 0 15px; }
    .hero-section { padding: 2rem 1rem; border-radius: 16px; }
    .hero-section h1 { font-size: 1.5rem; }
    .card { border-radius: 12px; margin-bottom: 12px; border: none; box-shadow: 0 2px 12px rgba(0,0,0,0.06); }
    .sidebar { display: none !important; }
    .col-md-9 { width: 100% !important; }
    .stat-card { padding: 1rem; }
    .stat-card .number { font-size: 1.5rem; }
    .btn { padding: 0.5rem 1rem; font-size: 0.9rem; border-radius: 8px; }
    .form-control, .form-select { font-size: 16px; border-radius: 8px; }
    .d-mobile-none { display: none !important; }
    footer.desktop-footer { display: none !important; }
    .list-group-item { border-left: 0; border-right: 0; }
    .list-group-item:first-child { border-top: 0; border-radius: 12px 12px 0 0; }
    .list-group-item:last-child { border-bottom: 0; border-radius: 0 0 12px 12px; }
    
    /* 消息通知页面优化 */
    .list-group-item .d-flex {
        flex-direction: column !important;
    }
    .list-group-item .d-flex > div:first-child {
        margin-bottom: 8px;
    }
    .list-group-item .d-flex > div.text-end {
        text-align: left !important;
        display: flex;
        justify-content: space-between;
        align-items: center;
        padding-top: 8px;
        border-top: 1px solid rgba(255,255,255,0.05);
    }
    .list-group-item .d-flex > div.text-end br {
        display: none;
    }
    .list-group-item .d-flex > div.text-end a {
        margin-left: auto;
    }
    
    /* 页面标题优化 */
    .container > .row > .col-md-9 > .d-flex {
        flex-direction: column;
        gap: 10px;
    }
    .container > .row > .col-md-9 > .d-flex h4 {
        font-size: 1.2rem;
    }
    .container > .row > .col-md-9 > .d-flex .badge {
        font-size: 0.7rem;
    }
}