.game-controls {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    height: 100vh;
    width: 100vw;
    z-index: 1000;
    touch-action: none;
    -webkit-touch-action: none;
    user-select: none;
    -webkit-user-select: none;
    background: none;
    pointer-events: auto;
    display: block !important;
    visibility: visible !important;
}

/* 顶部按钮组 */
.top-buttons {
    position: fixed;
    top: 15px;
    right: 15px;
    display: flex;
    gap: 8px;
    z-index: 1001;
}

.hide-button {
    position: fixed;
    top: 15px;
    left: 15px;
    width: 36px;
    height: 36px;
    background: rgba(45, 45, 50, 0.85);
    border-radius: 8px;
    box-shadow: none;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1001;
    -webkit-tap-highlight-color: transparent;
}

.hide-button .icon {
    width: 24px;
    height: 24px;
}

.hide-button:active {
    background: rgba(65, 65, 70, 0.95);
}

.hide-button.active {
    background: rgba(75, 75, 80, 0.95);
}

.keyboard-toggle, .pgdn-button, .menu-button {
    width: 44px;
    height: 44px;
    background: rgba(45, 45, 50, 0.85);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    -webkit-tap-highlight-color: transparent;
    position: relative;
}

.menu-button {
    background: rgba(55, 55, 60, 0.9);
}

.pgdn-button {
    background: rgba(55, 55, 60, 0.9);
}

.menu-button .icon,
.pgdn-button .icon {
    width: 28px;
    height: 28px;
    color: rgba(255, 255, 255, 0.95);
}

.keyboard-toggle:active,
.pgdn-button:active,
.menu-button:active,
.keyboard-toggle.pressed,
.pgdn-button.pressed,
.menu-button.pressed {
    background: rgba(65, 65, 70, 0.95);
    transform: scale(0.95);
}

/* 添加按钮激活效果 */
.menu-button.active,
.pgdn-button.active {
    background: rgba(75, 75, 80, 0.95);
}

/* 方向键 */
.d-pad {
    position: fixed;
    bottom: 25px;
    left: 25px;
    width: 160px;
    height: 160px;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    grid-template-rows: repeat(3, 1fr);
    gap: 4px;
    padding: 8px;
    background: none;
    transform: translateZ(0);
    -webkit-transform: translateZ(0);
    backface-visibility: hidden;
    -webkit-backface-visibility: hidden;
    perspective: 1000;
    -webkit-perspective: 1000;
}

.d-pad-button,
.action-button,
.keyboard-toggle,
.pgdn-button,
.menu-button,
.hide-button,
.key {
    background: rgba(45, 45, 50, 0.85);
    border: none;
    border-radius: 8px;
    color: rgba(255, 255, 255, 0.9);
    transition: all 0.2s ease;
    box-shadow: none;
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
    visibility: visible !important;
    opacity: 1 !important;
}

.d-pad-button {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    -webkit-tap-highlight-color: transparent;
}

.action-button {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    -webkit-tap-highlight-color: transparent;
}

.key {
    background: rgba(50, 50, 55, 0.9);
    color: rgba(255, 255, 255, 0.95);
    min-width: 32px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
    font-weight: 400;
    flex: 1;
    -webkit-tap-highlight-color: transparent;
    user-select: none;
    font-family: system-ui, -apple-system, sans-serif;
    transition: all 0.15s ease-out;
    position: relative;
    overflow: hidden;
    will-change: background-color, transform;
    padding: 0 4px;
    box-sizing: border-box;
    transform: translateY(0);
}

/* 按键激活状态 */
.d-pad-button:active,
.action-button:active,
.keyboard-toggle:active,
.pgdn-button:active,
.menu-button:active,
.hide-button:active,
.key:active,
.d-pad-button.pressed,
.action-button.pressed,
.keyboard-toggle.pressed,
.pgdn-button.pressed,
.menu-button.pressed,
.hide-button.pressed {
    background: rgba(65, 65, 70, 0.95);
    transform: scale(0.95);
}

.key.active,
.hide-button.active {
    background: rgba(75, 75, 80, 0.95);
}

.d-pad-up { grid-row: 1; grid-column: 2; }
.d-pad-right { grid-row: 2; grid-column: 3; }
.d-pad-down { grid-row: 3; grid-column: 2; }
.d-pad-left { grid-row: 2; grid-column: 1; }

/* 功能按钮 */
.action-buttons {
    position: fixed;
    bottom: 25px;
    right: 25px;
    width: 160px;
    height: 160px;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    grid-template-rows: repeat(3, 1fr);
    gap: 4px;
    padding: 8px;
    background: none;
    transform: translateZ(0);
    -webkit-transform: translateZ(0);
    backface-visibility: hidden;
    -webkit-backface-visibility: hidden;
    perspective: 1000;
    -webkit-perspective: 1000;
}

.action-button[data-key="ok"] { grid-row: 2; grid-column: 3; }
.action-button[data-key="cancel"] { grid-row: 2; grid-column: 1; }
.action-button[data-key="shift"] { grid-row: 1; grid-column: 2; }
.action-button[data-key="control"] { grid-row: 3; grid-column: 2; }

/* 虚拟键盘 */
.virtual-keyboard {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: rgba(35, 35, 40, 0.95);
    padding: 6px 8px 8px;
    z-index: 1000;
    border-top: none;
    visibility: visible;
    opacity: 1;
    transform: translateZ(0);
    -webkit-transform: translateZ(0);
    display: none;
    max-height: 45vh;
    overflow-y: auto;
    box-sizing: border-box;
}

.virtual-keyboard.show {
    display: block;
}

/* 修复键盘网格布局 */
.keyboard-grid {
    display: block;
    width: 100%;
    max-width: 480px;
    margin: 0 auto;
    padding: 0;
    box-sizing: border-box;
}

.keyboard-row {
    display: flex;
    gap: 2px;
    justify-content: center;
    margin-bottom: 2px;
    min-height: 38px;
    padding: 0;
    box-sizing: border-box;
    width: 100%;
}

/* 字母键样式 */
.key {
    min-width: 28px;
    height: 38px;
    padding: 0 2px;
    font-size: 15px;
    margin: 0;
    border-radius: 6px;
    background: rgba(50, 50, 55, 0.9);
    flex: 1;
    box-sizing: border-box;
}

/* 特殊按键样式 */
.key-backspace,
.key-enter {
    min-width: 42px;
    flex: 1.2;
}

.key-space {
    min-width: 120px;
    flex: 2;
}

.key-shift,
.key-symbols {
    min-width: 38px;
    flex: 1.1;
}

/* 关闭按钮行特殊处理 */
.keyboard-row:last-child {
    display: flex;
    justify-content: center;
    margin-bottom: 2px;
    min-height: 38px;
    padding: 0;
    box-sizing: border-box;
    width: 100%;
}

/* 关闭按钮样式重写 */
.key-hide {
    min-width: 80px;
    flex: 1;
    background: rgba(60, 60, 65, 0.9);
    font-weight: 500;
}

#normalKeyboard,
#numericKeyboard {
    width: 100%;
    height: auto;
    transition: all 0.3s ease;
}

.show {
    display: block !important;
}

/* 图标样式 */
.icon {
    width: 24px;
    height: 24px;
    display: flex !important;
    align-items: center;
    justify-content: center;
    color: rgba(255, 255, 255, 0.95);
    margin: 0 auto;
    visibility: visible !important;
    opacity: 0.95 !important;
}

.icon svg {
    width: 100%;
    height: 100%;
    fill: currentColor;
    display: block !important;
}

.d-pad-button .icon {
    width: 32px;
    height: 32px;
}

.action-button .icon {
    width: 28px;
    height: 28px;
}

.key .icon {
    width: 20px;
    height: 20px;
}

.key-symbols:active,
.key-symbols.active {
    background: rgba(70, 70, 75, 0.95);
}

.key-hide:active,
.key-hide.active {
    background: rgba(70, 70, 75, 0.95);
}

#normalKeyboard .keyboard-row:first-child {
    padding-left: 0;
}

#normalKeyboard .keyboard-row:nth-child(2) {
    padding-left: 0;
}

#normalKeyboard .keyboard-row:nth-child(3) {
    padding-left: 0;
}

/* 防止触摸时的选择和高亮 */
.game-controls * {
    -webkit-touch-callout: none;
    -webkit-user-select: none;
    -khtml-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    user-select: none;
    -webkit-tap-highlight-color: transparent;
}

/* 确保所有按钮都有相同的过渡效果 */
.d-pad-button,
.action-button,
.keyboard-toggle,
.pgdn-button,
.menu-button,
.hide-button {
    transition: all 0.15s ease-out;
    transform: translateY(0);
    box-shadow: none;
    border: none;
}

.d-pad-button:active,
.action-button:active,
.keyboard-toggle:active,
.pgdn-button:active,
.menu-button:active,
.hide-button:active,
.d-pad-button.pressed,
.action-button.pressed,
.keyboard-toggle.pressed,
.pgdn-button.pressed,
.menu-button.pressed,
.hide-button.pressed {
    transform: translateY(0);
}

/* 响应式布局适配 */
@media (max-width: 320px) {
    .keyboard-row {
        gap: 1px;
        margin-bottom: 1px;
        min-height: 34px;
    }
    .key {
        min-width: 24px;
        height: 34px;
        font-size: 14px;
    }
    .key-backspace,
    .key-enter {
        min-width: 36px;
    }
    .key-space {
        min-width: 100px;
    }
    .key-shift,
    .key-symbols {
        min-width: 32px;
    }
    .key-hide {
        min-width: 70px;
    }
    .virtual-keyboard {
        padding: 4px 6px 6px;
    }
    .keyboard-row:last-child {
        margin-top: 3px;
        height: 34px;
    }
}

@media (min-width: 321px) and (max-width: 375px) {
    .key {
        min-width: 26px;
        height: 36px;
    }
    .key-backspace,
    .key-enter {
        min-width: 40px;
    }
    .key-space {
        min-width: 110px;
    }
    .key-hide {
        min-width: 75px;
    }
    .virtual-keyboard {
        padding: 5px 7px 7px;
    }
    .keyboard-row:last-child {
        margin-top: 3px;
        height: 36px;
    }
}

@media (orientation: landscape) {
    .keyboard-grid {
        max-width: 600px;
    }
    .keyboard-row {
        gap: 3px;
        margin-bottom: 3px;
        min-height: 40px;
    }
    .key {
        min-width: 32px;
        height: 40px;
        font-size: 16px;
    }
    .key-space {
        min-width: 140px;
    }
    .key-hide {
        min-width: 90px;
    }
    .virtual-keyboard {
        padding: 5px 8px 8px;
    }
    .keyboard-row:last-child {
        margin-top: 5px;
        height: 40px;
    }
}

@media (orientation: landscape) and (max-height: 480px) {
    .keyboard-row {
        gap: 2px;
        margin-bottom: 2px;
        min-height: 32px;
    }
    .key {
        min-width: 28px;
        height: 32px;
        font-size: 14px;
    }
    .key-hide {
        width: 140px;
        height: 32px;
        line-height: 32px;
    }
    .virtual-keyboard {
        padding: 3px 2px 2px;
    }
    .keyboard-row:last-child {
        margin-top: 2px;
        height: 32px;
    }
}

/* 添加高对比度模式支持 */
@media (prefers-contrast: high) {
    .d-pad-button,
    .action-button,
    .keyboard-toggle,
    .pgdn-button,
    .menu-button,
    .hide-button,
    .key {
        background: rgba(30, 30, 35, 0.98);
        color: rgba(255, 255, 255, 1);
    }
    
    .d-pad-button:active,
    .action-button:active,
    .keyboard-toggle:active,
    .pgdn-button:active,
    .menu-button:active,
    .hide-button:active,
    .key:active,
    .d-pad-button.pressed,
    .action-button.pressed,
    .keyboard-toggle.pressed,
    .pgdn-button.pressed,
    .menu-button.pressed,
    .hide-button.pressed,
    .key.pressed {
        background: rgba(50, 50, 55, 0.98);
    }
}

/* 添加图标备用显示 */
.icon[data-fallback]::before {
    content: attr(data-fallback);
    display: none;
}

.icon svg:not(:root) + .icon[data-fallback]::before {
    display: block;
}

/* 移除所有backdrop-filter */
.d-pad-button,
.action-button,
.keyboard-toggle,
.pgdn-button,
.menu-button,
.hide-button,
.key,
.virtual-keyboard {
    -webkit-backdrop-filter: none;
    backdrop-filter: none;
}