/* 移动端专用优化样式 */

/* 基础移动端优化 */
@media screen and (max-width: 768px) {
    /* 防止页面缩放和滚动 */
    html, body {
        overflow-x: hidden;
        -webkit-overflow-scrolling: touch;
        height: 100%;
    }

    /* 页眉固定优化 */
    .header {
        position: fixed !important;
        top: 0;
        left: 0;
        right: 0;
        z-index: 9999;
        height: auto;
        min-height: 50px;
        padding: 0.5rem 0;
        background: rgba(255, 255, 255, 0.98) !important;
        backdrop-filter: blur(15px);
        box-shadow: 0 2px 15px rgba(0,0,0,0.1);
        border-bottom: 1px solid rgba(0,0,0,0.1);
    }

    /* 导航容器优化 */
    .nav-container {
        padding: 0.5rem 1rem;
        display: flex;
        justify-content: space-between;
        align-items: center;
        flex-wrap: nowrap;
        gap: 0.5rem;
    }

    /* Logo 优化 */
    .logo {
        font-size: 1rem;
        font-weight: 600;
        display: flex;
        align-items: center;
        gap: 0.3rem;
        flex-shrink: 0;
    }

    .watermelon-logo {
        font-size: 1.2rem;
    }

    /* 导航链接优化 */
    .nav-links {
        display: flex;
        gap: 0.3rem;
        font-size: 0.75rem;
        margin: 0;
        padding: 0;
        list-style: none;
    }

    .nav-links li {
        margin: 0;
    }

    .nav-links li a {
        padding: 0.3rem 0.5rem;
        border-radius: 4px;
        text-decoration: none;
        white-space: nowrap;
        display: block;
        transition: background-color 0.2s;
    }

    .nav-links li a:hover {
        background: rgba(0,0,0,0.1);
    }

    /* 主内容区域适配 */
    .main-container {
        padding-top: 70px; /* 为固定页眉留出空间 */
        padding-left: 0.5rem;
        padding-right: 0.5rem;
        padding-bottom: 1rem;
    }

    /* 游戏区域优化 */
    .game-section {
        padding: 0.5rem;
        margin: 0;
    }

    .game-title {
        font-size: 1.6rem;
        margin: 0.5rem 0;
        line-height: 1.2;
        text-align: center;
    }

    .game-subtitle {
        font-size: 0.9rem;
        margin-bottom: 1rem;
        text-align: center;
        line-height: 1.3;
    }

    /* 游戏容器优化 */
    .game-container {
        margin: 1rem auto;
        max-width: 100%;
        padding: 5px;
        border-radius: 10px;
    }

    .game-iframe {
        width: 100%;
        height: 450px;
        border: none;
        border-radius: 8px;
        background: white;
    }

    /* 游戏控制按钮优化 */
    .game-controls {
        display: flex;
        justify-content: center;
        gap: 0.5rem;
        margin-top: 1rem;
        flex-wrap: wrap;
    }

    .btn {
        padding: 0.8rem 1.5rem;
        font-size: 0.9rem;
        border-radius: 25px;
        min-width: 120px;
    }
}

/* 小屏手机优化 (480px以下) */
@media screen and (max-width: 480px) {
    .header {
        min-height: 45px;
        padding: 0.3rem 0;
    }

    .nav-container {
        padding: 0.3rem 0.5rem;
    }

    .logo {
        font-size: 0.9rem;
    }

    .logo span:last-child {
        display: none; /* 隐藏文字，只显示emoji */
    }

    .nav-links {
        font-size: 0.7rem;
        gap: 0.2rem;
    }

    .nav-links li:nth-child(n+3) {
        display: none; /* 只保留前两个导航项 */
    }

    .main-container {
        padding-top: 55px;
        padding-left: 0.3rem;
        padding-right: 0.3rem;
    }

    .game-title {
        font-size: 1.4rem;
        margin: 0.3rem 0;
    }

    .game-subtitle {
        font-size: 0.8rem;
        margin-bottom: 0.8rem;
    }

    .game-container {
        margin: 0.8rem auto;
        padding: 3px;
    }

    .game-iframe {
        height: 400px;
    }

    .game-controls {
        flex-direction: column;
        align-items: center;
        gap: 0.5rem;
        margin-top: 0.8rem;
    }

    .btn {
        padding: 0.7rem 1rem;
        font-size: 0.8rem;
        width: 100%;
        max-width: 200px;
    }
}

/* 超小屏手机优化 (360px以下) */
@media screen and (max-width: 360px) {
    .header {
        min-height: 40px;
        padding: 0.2rem 0;
    }

    .nav-container {
        padding: 0.2rem 0.3rem;
    }

    .logo {
        font-size: 0.8rem;
    }

    .nav-links li:nth-child(n+2) {
        display: none; /* 只保留Home链接 */
    }

    .main-container {
        padding-top: 50px;
        padding-left: 0.2rem;
        padding-right: 0.2rem;
    }

    .game-title {
        font-size: 1.2rem;
        margin: 0.2rem 0;
    }

    .game-subtitle {
        font-size: 0.75rem;
        margin-bottom: 0.5rem;
    }

    .game-container {
        margin: 0.5rem auto;
        padding: 2px;
    }

    .game-iframe {
        height: 350px;
    }

    .btn {
        padding: 0.6rem 0.8rem;
        font-size: 0.75rem;
    }
}

/* 横屏模式优化 */
@media screen and (max-height: 500px) and (orientation: landscape) {
    .header {
        min-height: 35px;
        padding: 0.2rem 0;
    }

    .main-container {
        padding-top: 45px;
    }

    .game-title {
        font-size: 1.2rem;
        margin: 0.2rem 0;
    }

    .game-subtitle {
        font-size: 0.8rem;
        margin-bottom: 0.3rem;
    }

    .game-iframe {
        height: 300px;
    }

    .game-controls {
        margin-top: 0.5rem;
    }
}

/* 触摸设备专用优化 */
@media (hover: none) and (pointer: coarse) {
    /* 增大触摸目标 */
    .nav-links li a {
        min-height: 44px;
        display: flex;
        align-items: center;
        justify-content: center;
    }

    .btn {
        min-height: 44px;
        touch-action: manipulation;
    }

    /* 移除悬停效果 */
    .nav-links li a:hover,
    .btn:hover {
        background: initial;
    }

    /* 添加触摸反馈 */
    .nav-links li a:active,
    .btn:active {
        background: rgba(0,0,0,0.1);
        transform: scale(0.98);
    }
}

/* 高DPI屏幕优化 */
@media (-webkit-min-device-pixel-ratio: 2), (min-resolution: 192dpi) {
    .game-iframe {
        image-rendering: -webkit-optimize-contrast;
        image-rendering: crisp-edges;
    }
}

/* 安全区域适配 (iPhone X等) */
@supports (padding: max(0px)) {
    .header {
        padding-left: max(1rem, env(safe-area-inset-left));
        padding-right: max(1rem, env(safe-area-inset-right));
    }

    .main-container {
        padding-left: max(0.5rem, env(safe-area-inset-left));
        padding-right: max(0.5rem, env(safe-area-inset-right));
        padding-bottom: max(1rem, env(safe-area-inset-bottom));
    }
}

/* 减少动画以提升性能 */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* 暗色模式适配 */
@media (prefers-color-scheme: dark) {
    .header {
        background: rgba(0, 0, 0, 0.95) !important;
        color: white;
    }

    .nav-links li a {
        color: white;
    }

    .nav-links li a:active {
        background: rgba(255,255,255,0.1);
    }
}