/* 反馈按钮悬浮样式 */
.feedback-button {
    position: fixed;
    right: 30px;
    bottom: 100px;
    z-index: 1000;
    background-color: #2980b9;
    color: white;
    border: none;
    border-radius: 50px;
    padding: 12px 24px;
    font-size: 14px;
    cursor: pointer;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    transition: all 0.3s ease;
    font-family: "Lato", "proxima-nova", "Helvetica Neue", Arial, sans-serif;
}

.feedback-button:hover {
    background-color: #3498db;
    box-shadow: 0 6px 16px rgba(0, 0, 0, 0.2);
    transform: translateY(-2px);
}

/* 反馈弹窗遮罩 */
.feedback-modal-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    z-index: 2000;
    animation: fadeIn 0.3s ease;
}

.feedback-modal-overlay.active {
    display: flex;
    justify-content: center;
    align-items: center;
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

/* 反馈弹窗主体 */
.feedback-modal {
    background-color: white;
    border-radius: 12px;
    padding: 30px;
    width: 90%;
    max-width: 500px;
    max-height: 90vh;
    overflow-y: auto;
    position: relative;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.2);
    animation: slideUp 0.3s ease;
}

@keyframes slideUp {
    from {
        transform: translateY(50px);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

/* 关闭按钮 */
.feedback-modal-close {
    position: absolute;
    top: 15px;
    right: 15px;
    background: none;
    border: none;
    font-size: 24px;
    color: #999;
    cursor: pointer;
    padding: 5px 10px;
    line-height: 1;
    transition: color 0.2s;
}

.feedback-modal-close:hover {
    color: #333;
}

/* 弹窗标题 */
.feedback-modal h2 {
    margin: 0 0 20px 0;
    font-size: 20px;
    color: #333;
    font-weight: 600;
}

/* 表单样式 */
.feedback-form {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.feedback-form-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
    padding-top: 20px;
}

.feedback-form-group label {
    font-size: 14px;
    font-weight: 500;
    color: #555;
}

.feedback-form-group textarea,
.feedback-form-group input[type="text"],
.feedback-form-group input[type="email"] {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid #ddd;
    border-radius: 6px;
    font-size: 14px;
    font-family: "Lato", "proxima-nova", "Helvetica Neue", Arial, sans-serif;
    transition: border-color 0.2s;
    box-sizing: border-box;
}

.feedback-form-group textarea {
    min-height: 120px;
    resize: vertical;
}

/* contenteditable 编辑器样式 */
.feedback-editor {
    min-height: 150px;
    max-height: 400px;
    overflow-y: auto;
    padding: 12px;
    border: 1px solid #ddd;
    border-radius: 6px;
    background-color: white;
    transition: border-color 0.2s;
    line-height: 1.6;
    word-wrap: break-word;
}

.feedback-editor:focus {
    outline: none;
    border-color: #2980b9;
}

.feedback-editor:empty:before {
    content: attr(data-placeholder);
    color: #999;
    white-space: pre-wrap;
}

.feedback-editor img {
    max-width: 100%;
    height: auto;
    display: block;
    margin: 10px 0;
    border-radius: 4px;
    border: 1px solid #e1e8ed;
    cursor: pointer;
}

.feedback-editor img:hover {
    border-color: #2980b9;
    box-shadow: 0 2px 8px rgba(41, 128, 185, 0.2);
}

.feedback-form-group input:focus,
.feedback-form-group textarea:focus {
    outline: none;
    border-color: #2980b9;
}

/* 联系信息部分 */
.feedback-contact-info {
    margin-top: 10px;
}

.feedback-contact-info p {
    margin: 0 0 15px 0;
    font-size: 14px;
    color: #333;
    border-bottom: 1px solid #eee;
}

.feedback-contact-fields {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 15px;
}

/* 提交按钮 */
.feedback-submit-btn {
    align-self: flex-end;
    background-color: #2980b9;
    color: white;
    border: none;
    border-radius: 6px;
    padding: 12px 40px;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: background-color 0.2s;
    margin-top: 10px;
}

.feedback-submit-btn:hover {
    background-color: #3498db;
}

.feedback-submit-btn:disabled {
    background-color: #95a5a6;
    cursor: not-allowed;
}

/* 提示信息 */
.feedback-message {
    padding: 12px;
    border-radius: 6px;
    font-size: 14px;
    margin-bottom: 15px;
    display: none;
}

.feedback-message.success {
    background-color: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
    display: block;
}

.feedback-message.error {
    background-color: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
    display: block;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .feedback-button {
        right: 20px;
        bottom: 80px;
        padding: 10px 20px;
        font-size: 13px;
    }

    .feedback-modal {
        padding: 20px;
        width: 95%;
    }

    .feedback-contact-fields {
        grid-template-columns: 1fr;
    }
}