/**
 * 悬浮Logo按钮样式
 * 交互管理层 z-index: 1000
 * 功能：Logo动画 + 可拖动 + 对话气泡
 */

/* 悬浮按钮容器 */
.float-button {
    position: fixed;
    right: 20px;
    top: calc(4vh + 60px);
    z-index: 1000;
    cursor: grab;
    user-select: none;
    transition: all var(--transition-fast);
}

/* Logo图片 - 完整展示 */
.float-logo {
    width: 100px;
    height: 100px;
    display: block;
    object-fit: contain;
    border-radius: 10px;  /* 轻微圆角而非圆形 */
    pointer-events: none;
    transition: all 0.3s ease;
    background: transparent;
    filter: drop-shadow(0 4px 12px rgba(0, 0, 0, 0.15));
}

/* 深色模式适配 */
.theme-dark .float-logo {
    filter: brightness(1.05) drop-shadow(0 0 12px rgba(255, 255, 255, 0.2));
}

/* ========== 场景1：默认待机 - 摇摆动画 ========== */
.float-logo.scene-idle {
    animation: 
        logoSwing 3s ease-in-out infinite,
        logoFloat 4s ease-in-out infinite;
}

@keyframes logoSwing {
    0%, 100% { transform: rotate(-5deg); }
    50% { transform: rotate(5deg); }
}

@keyframes logoFloat {
    0%, 100% { transform: translateY(0px) rotate(-5deg); }
    25% { transform: translateY(-5px) rotate(0deg); }
    50% { transform: translateY(0px) rotate(5deg); }
    75% { transform: translateY(-5px) rotate(0deg); }
}

/* ========== 场景2：悬停/点击 - 蹦跳放大 ========== */
.float-logo.scene-hover {
    animation: logoJump 0.8s cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

@keyframes logoJump {
    0% { transform: scale(1) translateY(0); }
    30% { transform: scale(1.1) translateY(-15px); }
    50% { transform: scale(1.15) translateY(-20px); }
    70% { transform: scale(1.1) translateY(-15px); }
    85% { transform: scale(1.05) translateY(-5px); }
    100% { transform: scale(1.2) translateY(0); }
}

/* ========== 场景3：说话 - 弹跳撅嘴效果 ========== */
.float-logo.scene-speak {
    animation: logoSpeak 0.6s ease-in-out 2;
}

@keyframes logoSpeak {
    0%, 100% { transform: scale(1) translateY(0) rotateZ(0deg); }
    25% { transform: scale(0.95) translateY(5px) rotateZ(-3deg); }
    50% { transform: scale(1.05) translateY(-8px) rotateZ(3deg); }
    75% { transform: scale(0.98) translateY(3px) rotateZ(-2deg); }
}

/* ========== 拖动状态 ========== */
.float-button.dragging {
    cursor: grabbing;
    opacity: 0.9;
    transition: none;
}

.float-button.dragging .float-logo {
    filter: drop-shadow(0 8px 20px rgba(0, 0, 0, 0.3));
}

.theme-dark .float-button.dragging .float-logo {
    filter: brightness(1.2) drop-shadow(0 8px 20px rgba(255, 255, 255, 0.4));
}

/* 回归动画 */
.float-button.returning {
    transition: all 0.5s cubic-bezier(0.34, 1.56, 0.64, 1);
}

/* ========== 对话气泡 - 功能内容层 - 由右向左显示 ========== */
.float-bubble {
    position: absolute;
    bottom: calc(100% + 16px);
    right: calc(100% + 16px); /* 文字在左侧显示 - 由右向左 */
    padding: 10px 16px;
    min-width: 140px;
    max-width: 220px;
    background: var(--content-bg);
    border: 1px solid var(--content-border);
    border-radius: 14px;
    box-shadow: var(--shadow-lg);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    z-index: 1001;
    animation: bubblePopIn 0.4s cubic-bezier(0.68, -0.55, 0.265, 1.55);
    pointer-events: none;
}

.float-bubble::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 100%; /* 箭头指向右侧的按钮 */
    transform: translateY(-50%);
    border: 8px solid transparent;
    border-left-color: var(--content-bg); /* 箭头指向右 */
}

.bubble-text {
    font-size: 13px;
    color: var(--text-color);
    font-weight: 500;
    line-height: 1.4;
    display: block;
}

/* 气泡弹出动画 */
@keyframes bubblePopIn {
    0% {
        transform: scale(0) translateY(10px);
        opacity: 0;
    }
    60% {
        transform: scale(1.1) translateY(0);
    }
    100% {
        transform: scale(1) translateY(0);
        opacity: 1;
    }
}

/* 气泡消失动画 */
.float-bubble.hiding {
    animation: bubblePopOut 0.3s ease forwards;
}

@keyframes bubblePopOut {
    0% {
        transform: scale(1);
        opacity: 1;
    }
    100% {
        transform: scale(0.8) translateY(10px);
        opacity: 0;
    }
}

/* 隐藏状态 */
.hidden {
    display: none !important;
}

/* 气泡位置自适应 */
.float-bubble.position-bottom {
    bottom: auto;
    top: 50%;
    transform: translateY(-50%);
}

.float-bubble.position-bottom::after {
    /* 保持箭头在右侧 */
}

.float-bubble.position-center {
    /* 已在左侧，不需要居中 */
}

/* ========== 悬停效果 ========== */
.float-button:hover .float-logo.scene-idle {
    transform: scale(1.1);
    filter: brightness(1.1) drop-shadow(0 6px 16px rgba(0, 0, 0, 0.25));
}

.theme-dark .float-button:hover .float-logo.scene-idle {
    filter: brightness(1.2) drop-shadow(0 0 16px rgba(255, 255, 255, 0.4));
}

/* ========== 响应式 ========== */
@media (max-width: 768px) {
    .float-button {
        right: 16px;
        top: calc(4vh + 50px);
    }
    
    .float-logo {
        width: 80px;
        height: 80px;
    }
    
    .float-bubble {
        right: -5px;
        padding: 8px 12px;
        min-width: 120px;
        max-width: 180px;
    }
    
    .bubble-text {
        font-size: 12px;
    }
}

@media (max-width: 480px) {
    .float-button {
        right: 12px;
        top: calc(4vh + 45px);
    }
    
    .float-logo {
        width: 70px;
        height: 70px;
    }
    
    .float-bubble {
        right: 0;
        padding: 6px 10px;
        min-width: 100px;
        max-width: 150px;
    }
    
    .bubble-text {
        font-size: 11px;
    }
}