/* 底部导航栏 - 扁平胶囊设计 */
.bottom-nav-container {
    position: fixed;
    bottom: 60px;
    left: 0;
    right: 0;
    max-width: 100%; /* 改为100%自适应 */
    margin: 0 auto;
    background: rgba(255, 255, 255, 0.96);
    backdrop-filter: blur(25px);
    -webkit-backdrop-filter: blur(25px);
    border-top: 0.5px solid rgba(0, 0, 0, 0.08);
    padding: 7px 0 7px;
    overflow: hidden;
    box-shadow: 0 -2px 12px rgba(0, 0, 0, 0.04);
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.bottom-nav-container.menu-open {
    transform: translateY(-95px);
}

.bottom-nav-scroll {
    display: flex;
    gap: 8px;
    padding: 0 14px;
    overflow-x: auto;
    overflow-y: hidden;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    -ms-overflow-style: none;
}

.bottom-nav-scroll::-webkit-scrollbar {
    display: none;
}

.nav-item-circle {
    background: rgba(245, 245, 248, 0.95);
    border: 0.5px solid rgba(0, 0, 0, 0.06);
    display: flex;
    flex-direction: row;
    align-items: center;
    gap: 6px;
    cursor: pointer;
    padding: 8px 14px;
    flex-shrink: 0;
    transition: all 0.25s ease;
    border-radius: 20px;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.05);
}

.nav-item-circle:hover {
    background: rgba(240, 240, 245, 0.95);
    box-shadow: 0 3px 8px rgba(0, 0, 0, 0.08);
    transform: translateY(-1px);
}

.nav-item-circle:active {
    transform: scale(0.96) translateY(0);
}

.nav-item-circle.active {
    background: linear-gradient(135deg, #7B6BD6 0%, #9B8BE6 100%);
    border: 0.5px solid rgba(255, 255, 255, 0.3);
    box-shadow: 0 3px 12px rgba(123, 107, 214, 0.35),
                0 1px 4px rgba(123, 107, 214, 0.2);
}

.nav-circle {
    width: 20px;
    height: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #666;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    flex-shrink: 0;
}

.nav-item-circle.active .nav-circle {
    color: #FFFFFF;
}

.nav-circle svg {
    width: 20px;
    height: 20px;
}

.nav-label {
    font-size: 13px;
    color: #555;
    white-space: nowrap;
    font-weight: 500;
    letter-spacing: 0;
    line-height: 1.2;
}

.nav-item-circle.active .nav-label {
    color: #FFFFFF;
    font-weight: 600;
}

/* 智能模式选择菜单 - 优化版 */
.smart-mode-menu {
    position: fixed;
    bottom: 128px;
    left: 50%;
    transform: translateX(-50%);
    max-width: 100%; /* 改为100%自适应 */
    width: calc(100% - 36px);
    background: rgba(255, 255, 255, 0.96);
    backdrop-filter: blur(25px);
    -webkit-backdrop-filter: blur(25px);
    border-radius: 18px;
    box-shadow: 0 6px 28px rgba(0, 0, 0, 0.14),
                0 2px 8px rgba(0, 0, 0, 0.08);
    padding: 6px;
    z-index: 1000;
    animation: slideUp 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    border: 0.5px solid rgba(0, 0, 0, 0.06);
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateX(-50%) translateY(15px) scale(0.96);
    }
    to {
        opacity: 1;
        transform: translateX(-50%) translateY(0) scale(1);
    }
}

.mode-option {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 13px 12px;
    cursor: pointer;
    border-radius: 12px;
    transition: all 0.2s ease;
    position: relative;
}

.mode-option:hover {
    background: rgba(123, 107, 214, 0.06);
}

.mode-option.active {
    background: rgba(123, 107, 214, 0.1);
}

.mode-icon {
    font-size: 26px;
    width: 42px;
    height: 42px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(248, 248, 250, 0.95);
    border-radius: 11px;
    flex-shrink: 0;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
}

.mode-info {
    flex: 1;
    padding-right: 4px;
}

.mode-title {
    font-size: 14.5px;
    font-weight: 600;
    color: #1a1a1a;
    margin-bottom: 2px;
    line-height: 1.3;
}

.mode-desc {
    font-size: 11.5px;
    color: #777;
    line-height: 1.35;
    letter-spacing: -0.05px;
}

.mode-check {
    font-size: 18px;
    color: #7B6BD6;
    font-weight: 700;
    width: 22px;
    height: 22px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.mode-option:not(.active) .mode-check {
    opacity: 0;
}

/* 55寸触摸屏适配 - 底部导航 - 支持竖屏1080px */
@media screen and (min-width: 1024px) {
    .bottom-nav-container {
        max-width: 100%;
        padding: 12px 0;
        bottom: 70px;
    }
    
    .bottom-nav-scroll {
        padding: 0 20px;
        gap: 12px;
        /* 保持横向滚动 */
        overflow-x: auto;
        overflow-y: hidden;
    }
    
    .nav-item-circle {
        padding: 12px 18px;
        border-radius: 24px;
        flex-shrink: 0; /* 不收缩，保持滑动 */
    }
    
    .nav-circle {
        width: 24px;
        height: 24px;
    }
    
    .nav-circle svg {
        width: 24px;
        height: 24px;
    }
    
    .nav-label {
        font-size: 15px;
    }
    
    .smart-mode-menu {
        max-width: calc(100% - 100px);
        bottom: 180px;
    }
}

/* 横屏大屏幕 */
@media screen and (min-width: 1920px) {
    .bottom-nav-container {
        padding: 14px 0;
        bottom: 80px;
    }
    
    .bottom-nav-scroll {
        padding: 0 40px;
        gap: 14px;
    }
    
    .nav-item-circle {
        padding: 14px 22px;
        border-radius: 26px;
    }
    
    .nav-circle {
        width: 26px;
        height: 26px;
    }
    
    .nav-circle svg {
        width: 26px;
        height: 26px;
    }
    
    .nav-label {
        font-size: 16px;
    }
    
    .smart-mode-menu {
        max-width: calc(100% - 160px); /* 改为自适应 */
        bottom: 200px;
    }
}