.fab-container {

    position: fixed;

    right: 20px !important;

    bottom: calc(20px + env(safe-area-inset-bottom)) !important;

    display: flex;

    flex-direction: column;

    align-items: flex-end;

    z-index: 10000;

}



.fab-main-split {

	position: relative;

    overflow: hidden !important; 

    display: flex;

    align-items: stretch;

    display: flex;

    align-items: stretch;

    background: rgba(8, 12, 28, 0.94) !important;

    border: 1.5px solid rgba(0, 242, 255, 0.85) !important;

    border-radius: 4px;

    backdrop-filter: blur(20px) saturate(1.6) !important;

    height: 44px;

    box-shadow: 0 8px 32px rgba(0,0,0,0.75), 0 0 30px rgba(0,242,255,0.5) !important;

    overflow: hidden;

    z-index: 10001;

}



.split-left {

    display: flex;

    align-items: center;

    padding: 0 15px;

    cursor: pointer;

    border-right: 1px solid rgba(0,242,255,0.2);

    flex: 1;

}

.split-left:hover { background: rgba(0,242,255,0.1); }



.split-left .emoji {

    display: inline-block;

    font-size: 20px;

    margin-right: 8px;

    transform-origin: left center;

    animation: bookFloat 3s ease-in-out infinite; 

    transition: transform 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);

}

.fab-main-split:hover .split-left .emoji,

.active .split-left .emoji {

    animation-play-state: paused; 

    transform: perspective(400px) rotateY(-35deg) scale(1.2) translateY(-2px);

    filter: drop-shadow(0 0 8px #ffcc00);

}

.split-left .text {

    font-family: 'Orbitron', sans-serif !important;

    color: #ffcc00 !important;

    font-weight: 900 !important;

    font-size: 15px !important;

    text-shadow: 0 0 8px #ffcc00, 2px 2px 0 #000, -2px -2px 0 #000, 2px -2px 0 #000, -2px 2px 0 #000 !important;

}



.split-right {

    display: flex;

    align-items: center;

    justify-content: center;

    width: 48px;

    cursor: pointer;

    color: #00f2ff;

}

.split-right:hover { background: rgba(0,242,255,0.2); }

.split-right svg { width: 22px; height: 22px; transition: 0.3s; }



.active .split-right svg { transform: rotate(90deg); }



.fab-menu {

    display: none;

    flex-direction: column;

    gap: 8px;

    margin-top: 10px;

    margin-bottom: 15px;

    opacity: 0;

    transform: translateY(20px);

    transition: all 0.25s ease;

    align-items: flex-end !important;



    background: rgba(0, 0, 0, 0.35) !important;   

    border: none !important;

    border-radius: 10px;

    padding: 10px 0;

    box-shadow: 0 10px 30px rgba(0,0,0,0.6);

}



.fab-container.active .fab-menu {

    display: flex !important;

    opacity: 1 !important;

    transform: translateY(0) !important;

}

@supports (-webkit-touch-callout: none) {

    .fab-menu {

        background: rgba(0, 0, 0, 0.45) !important;

    }

}

.menu-item {

    background: #fff;

    color: #000 !important;

    text-decoration: none;

    padding: 12px 10px; 

    font-weight: 900;

    font-size: 11px;

    font-family: 'Orbitron', sans-serif;

    width: 195px; 

    box-sizing: border-box; 

    

    display: flex;

    flex-direction: column;

    justify-content: center;

    align-items: center;

    text-align: center;

    border-left: 6px solid #ffcc00;

    border-right: 6px solid #ffcc00;

    

    box-shadow: 0 4px 12px rgba(0,0,0,0.15);

    overflow: hidden; 

}



.menu-item:hover {

    background: #f8f8f8;

    transform: scale(1.02);

}

.menu-item.chest-mega-btn {

    background: linear-gradient(135deg, #e6b800 0%, #ffcc00 100%) !important;

    border: none !important;

    color: #1a1a1a !important;

    transform: skewX(-10deg) !important;

    width: 195px !important;

    padding: 14px 0 !important;

    margin-bottom: 12px !important;

    box-shadow: 5px 5px 0px rgba(0,0,0,0.25);

    position: relative;

    overflow: hidden;

}



.menu-item.chest-mega-btn:hover {

    transform: skewX(-10deg) scale(1.06) !important;

}



.chest-mega-btn .inner-content { transform: skewX(10deg); }

.mega-icon {

    display: inline-block;

    font-size: 30px;

    margin-bottom: 4px;

    transform-origin: center center; 

    perspective: 500px; 

    animation: bookFlipClean 3s ease-in-out infinite;

}

@keyframes bookFlipClean {

    0%, 100% {

        transform: rotateY(0deg) translateY(0);

    }

    30% {

        transform: rotateY(-45deg) translateY(-3px) scale(1.05);

    }

    60% {

        transform: rotateY(-10deg) translateY(-1px);

    }

}

.mega-text { font-family: 'Orbitron', sans-serif; font-weight: 900; font-size: 11.5px; background: rgba(255,255,255,0.35); padding: 3px 10px; border-radius: 4px; }



.menu-item.danger-zone { border-left-color: #ff4444; border-right-color: #ff4444; }



.has-submenu { 

    cursor: pointer; 

    padding: 0 !important; 

    overflow: hidden; 

}



.submenu-title {

    padding: 12px 25px;

    width: 100%;

    box-sizing: border-box;

    display: flex;

    justify-content: center;

    align-items: center;

}



.submenu-content {

    display: none;

    flex-direction: column;

    width: 100%;

    background: #f1f1f1;

    animation: fadeInSub 0.3s ease-out;

}

@keyframes fadeInSub {

    from { opacity: 0; transform: translateY(-5px); }

    to { opacity: 1; transform: translateY(0); }

}



.has-submenu.open {

    border-bottom: 2px solid #ffcc00 !important;

}



.has-submenu.open .submenu-content { 

    display: flex !important; 

}



.sub-item { 

    display: block !important;

    width: 100%;

    padding: 12px 0 !important; 

    color: #444 !important; 

    font-size: 10px; 

    text-decoration: none; 

    border-bottom: 1px solid #ddd; 

    text-align: center;

    box-sizing: border-box;

    transition: background 0.2s;

}



.sub-item:last-child {

    border-bottom: none;

}



.sub-item:hover { 

    background: #ffcc00 !important; 

    color: #000 !important; 

}



.menu-item.has-submenu {

    height: auto !important; 

    min-height: 44px;

}



.menu-item .en {

    font-size: 10px; 

    letter-spacing: -0.3px;

    line-height: 1.2;

    word-break: break-word; 

    max-width: 100%;

}



.menu-item .zh {

    font-size: 11px;

    letter-spacing: 0.5px;

}

.scanner-line {

    position: absolute;

    top: 0;

    left: 0;

    width: 100%;

    height: 100%; 

    

    background: linear-gradient(to bottom, 

        transparent 0%, 

        rgba(0, 242, 255, 0.4) 50%, 

        transparent 100%

    );

    animation: scanMove 2s linear infinite; 

    pointer-events: none;

    z-index: 5; 

}

@keyframes scanMove {

    0% { transform: translateY(-100%); }

    100% { transform: translateY(100%); }

}

@keyframes bookFloat {

    0%, 100% {

        transform: translateY(0) rotate(0deg);

    }

    50% {

        transform: translateY(-4px) rotate(-2deg);

    }

}

.zh-mode .en, .en .zh { display: none; }

.zh-mode .zh { display: inline; }