/* 反馈弹窗主容器 */
#feedback-modal {
    display: none;
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: #ffffff;
    border-radius: 12px;
    box-shadow: 0 10px 40px rgba(5, 63, 114, 0.15), 0 4px 20px rgba(0, 0, 0, 0.1);
    z-index: 10002;
    width: 480px;
    max-width: 95vw;
    padding: 0;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    font-size: 14px;
    color: #333333;
    overflow: hidden;
    max-height: 85vh;
    border: 1px solid #e0e0e0;
}

/* 弹窗头部 */
#feedback-modal .modal-header {
    background: transparent;
    color: #333333;
    padding: 20px 24px 16px;
    position: relative;
    z-index: 10002;
}

#feedback-modal .modal-header h3 {
    margin: 0;
    font-size: 18px;
    font-weight: 600;
    letter-spacing: -0.01em;
    color: #333333;
}

#feedback-modal .modal-header p {
    margin: 0;
    font-size: 13px;
    color: #666666;
    line-height: 1.4;
    padding-top: 8px;
    padding-right: 40px;
}

/* 关闭按钮 */
#feedback-modal .close {
    position: absolute;
    top: 16px;
    right: 20px;
    color: #999999;
    font-size: 20px;
    font-weight: 400;
    cursor: pointer;
    transition: all 0.2s ease;
    width: 28px;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: transparent;
    z-index: 10003;
}

#feedback-modal .close:hover {
    color: #333333;
    background: rgba(0, 0, 0, 0.05);
    transform: scale(1.05);
}

/* 弹窗内容区域 */
#feedback-modal .modal-content {
    padding: 0 24px 24px 24px;
    max-height: calc(85vh - 100px);
}

/* 表单组样式 */
#feedback-modal .form-group {
    margin-bottom: 20px;
}

#feedback-modal .form-group label {
    display: block;
    font-weight: 600;
    font-size: 13px;
    color: #333333;
    letter-spacing: -0.01em;

}
.suggestion-box {
    margin-top: 20px;
    font-family: Arial, sans-serif;
}
.suggestion-title {
    font-weight: bold;
    margin-bottom: 8px;
}
.suggestion-hint {
    color: #666;
    margin-bottom: 10px;
    font-size: 14px;
}
.suggestion-input {
    width: 100%;
    padding: 10px;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-family: inherit;
}
.suggestion-input:focus {
    outline: none;
    border-color: #4285f4;
}
#feedback-modal .form-group label.required::after {
    content: "*";
    color: #e53e3e;
    margin-left: 2px;
}

/* 评分标签行 */
#feedback-modal .rating-label-row {
    display: flex;
    justify-content: space-between;
    margin-bottom: 6px;
    font-size: 11px;
    color: #666666;
    font-weight: 500;
}

/* 评分按钮行 */
#feedback-modal .rating-btn-row {
    display: flex;
    justify-content: space-between;
    margin-bottom: 16px;
    gap: 3px;
}

/* 评分按钮 */
#feedback-modal .fb-rate-btn {
    flex: 1;
    height: 36px;
    font-size: 14px;
    font-weight: 500;
    border-radius: 6px;
    border: 1px solid #d0d0d0;
    background: #f8f8f8;
    color: #555555;
    cursor: pointer;
    transition: all 0.2s ease;
    outline: none;
    position: relative;
    overflow: hidden;
}

#feedback-modal .fb-rate-btn:hover {
    border-color: #053f72;
    background: #f0f0f0;
}

#feedback-modal .fb-value-btn:hover {
    border-color: #053f72;
    background: #f0f0f0;
}

#feedback-modal .fb-easy-btn:hover {
    border-color: #053f72;
    background: #f0f0f0;
}

#feedback-modal .fb-easy-btn.selected {
    background: #053f72;
    color: white;
    border-color: #053f72;
    box-shadow: 0 2px 8px rgba(5, 63, 114, 0.3);
}
#feedback-modal .fb-likely-btn:hover {
    border-color: #053f72;
    background: #f0f0f0;
}

#feedback-modal .fb-likely-btn.selected {
    background: #053f72;
    color: white;
    border-color: #053f72;
    box-shadow: 0 2px 8px rgba(5, 63, 114, 0.3);
}
/* 单选按钮组 */
#feedback-modal .radio-group {
    display: flex;
    gap: 10px;
    margin: 10px 0;
}

#feedback-modal .radio-group input[type="radio"] {
    position: absolute;
    opacity: 0;
    width: 0;
    height: 0;
}

#feedback-modal .radio-group .radio-label {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 10px 16px;
    background: #ffffff;
    border: 1px solid #d0d0d0;
    border-radius: 6px;
    color: #555555;
    cursor: pointer;
    transition: all 0.2s ease;
    font-weight: 500;
    font-size: 13px;
    text-align: center;
    min-height: 38px;
}

#feedback-modal .radio-group input[type="radio"]:checked + .radio-label {
    background: #053f72;
    color: white;
    border-color: #053f72;
    box-shadow: 0 2px 8px rgba(5, 63, 114, 0.3);
}

#feedback-modal .radio-group .radio-label:hover {
    border-color: #053f72;
    background: #f0f0f0;
}

/* 输入框样式 */
#feedback-modal input[type="text"],
#feedback-modal select,
#feedback-modal textarea {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid #d0d0d0;
    border-radius: 6px;
    font-size: 13px;
    color: #333333;
    background: #ffffff;
    transition: all 0.2s ease;
    box-sizing: border-box;
}

#feedback-modal input[type="text"]:focus,
#feedback-modal select:focus,
#feedback-modal textarea:focus {
    outline: none;
    border-color: #053f72;
}

#feedback-modal select {
    height: 40px;
    cursor: pointer;
}

#feedback-modal textarea {
    min-height: 70px;
    resize: vertical;
    font-family: inherit;
    line-height: 1.4;
    margin-top: 10px;
}

/* 提交按钮 */
#feedback-modal button[type="submit"] {
    background: #053f72;
    color: white;
    border: none;
    border-radius: 6px;
    padding: 12px 20px;
    width: 100%;
    font-size: 14px;
    font-weight: 600;
    margin-top: 12px;
    transition: all 0.2s ease;
    cursor: pointer;
    letter-spacing: -0.01em;
    margin-bottom: 12px;
}

#feedback-modal button[type="submit"]:hover {
    background: #044a5f;
    box-shadow: 0 4px 12px rgba(5, 63, 114, 0.3);
}

#feedback-modal button[type="submit"]:active {
    transform: translateY(1px);
}

#feedback-modal button[type="submit"]:disabled {
    background: #cccccc;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

/* 问题选择区域 */
#feedback-modal .difficulty-group {
    display: flex;
    gap: 12px;
    margin: 10px 0;
}

#feedback-modal .difficulty-group label {
    display: flex;
    align-items: center;
    cursor: pointer;
    font-weight: 500;
    color: #555555;
    font-size: 13px;
}

#feedback-modal .difficulty-group input[type="radio"] {
    margin-right: 6px;
    width: 14px;
    height: 14px;
    accent-color: #053f72;
}

/* 成功和错误消息样式 */
#feedback-modal .success-message,
#feedback-modal .error-message {
    padding: 10px 14px;
    border-radius: 6px;
    margin-bottom: 12px;
    font-weight: 500;
    text-align: center;
    animation: slideDown 0.3s ease;
    font-size: 13px;
}

#feedback-modal .success-message {
    background: #d1e7dd;
    color: #0f5132;
    border: 1px solid #badbcc;
}

#feedback-modal .error-message {
    background: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c2c7;
}

/* 弹窗动画 */
@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* 弹窗打开时的body样式 */
body.modal-open {
    overflow: hidden;
}

/* 弹窗淡入淡出动画 */
#feedback-modal {
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
}

#feedback-modal:not([style*="display: none"]) {
    opacity: 1;
    visibility: visible;
}

/* 加载状态样式 */
#feedback-modal button[type="submit"]:disabled {
    background: #cbd5e0;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

/* 占位符样式 */
#feedback-modal input::placeholder,
#feedback-modal textarea::placeholder {
    color: #999999;
    opacity: 1;
}

/* 焦点状态增强 */
#feedback-modal input:focus::placeholder,
#feedback-modal textarea:focus::placeholder {
    opacity: 0.6;
}

/* 滚动条样式优化 */
#feedback-modal .modal-content::-webkit-scrollbar {
    width: 4px;
}

#feedback-modal .modal-content::-webkit-scrollbar-track {
    background: #f1f1f1;
    border-radius: 2px;
}

#feedback-modal .modal-content::-webkit-scrollbar-thumb {
    background: #c1c1c1;
    border-radius: 2px;
}

#feedback-modal .modal-content::-webkit-scrollbar-thumb:hover {
    background: #a8a8a8;
}
.checkbox-group {
    margin-top: 10px;
}

.checkbox-option {
    margin-bottom: 10px;
    display: flex;
    align-items: center;
}

.checkbox-option input[type="checkbox"] {
    margin-right: 10px;
    width: 16px;
    height: 16px;
}

.checkbox-option label {
    cursor: pointer;
    margin-bottom: 0;
    font-size: 15px;
}

.underline-input {
    display: inline-block;
    border-bottom: 1px solid #000;
    min-width: 150px;
}
.underline-input input {
    border: none;
    outline: none;
    width: 100%;
    background: transparent;
    padding: 0 5px 2px;
}
/* 移动端适配 */
@media (max-width: 768px) {
    #feedback-modal {
        width: 95vw;
        max-height: 95vh;
        border-radius: 12px;
    }

    #feedback-modal .modal-header {
        padding: 20px 24px 16px;
    }

    #feedback-modal .modal-header h3 {
        font-size: 18px;
    }

    #feedback-modal .modal-content {
        padding: 0 24px 24px 24px;
        max-height: calc(95vh - 100px);
    }

    #feedback-modal .form-group {
        margin-bottom: 20px;
    }

    #feedback-modal .rating-btn-row {
        gap: 3px;
    }

    #feedback-modal .fb-rate-btn {
        height: 36px;
        font-size: 14px;
    }

    #feedback-modal .fb-easy-btn {
        height: 32px;
        font-size: 13px;
    }
    #feedback-modal .fb-likely-btn {
        height: 32px;
        font-size: 13px;
    }

    #feedback-modal .radio-group {
        gap: 8px;
    }

    #feedback-modal .radio-group .radio-label {
        padding: 10px 16px;
        font-size: 13px;
        min-height: 40px;
    }

    #feedback-modal input[type="text"],
    #feedback-modal select,
    #feedback-modal textarea {
        padding: 10px 14px;
        font-size: 14px;
    }

    #feedback-modal select {
        height: 44px;
    }

    #feedback-modal button[type="submit"] {
        padding: 12px 20px;
        font-size: 15px;
    }
}

@media (max-width: 480px) {
    #feedback-modal {
        width: 98vw;
        border-radius: 8px;
    }

    #feedback-modal .modal-header {
        padding: 16px 20px 12px;
    }

    #feedback-modal .modal-content {
        padding: 0 20px 20px 20px;
    }

    #feedback-modal .rating-btn-row {
        gap: 2px;
    }

    #feedback-modal .fb-rate-btn {
        height: 32px;
        font-size: 13px;
    }

    #feedback-modal .radio-group .radio-label {
        padding: 8px 12px;
        font-size: 12px;
        min-height: 36px;
    }
}
#feedback-modal .section-title {
    font-size: 16px;
    font-weight: bold;
    margin-bottom: 8px;
}
#feedback-modal .section {
    margin-bottom: 18px;
}
.checkbox-group {
    margin-top: 10px;
}

.checkbox-option {
    margin-bottom: 8px;
    display: flex;
    align-items: center;
}

.checkbox-option input[type="checkbox"] {
    margin-right: 10px;
}

.checkbox-option label {
    cursor: pointer;
    margin-bottom: 0;
}

#feedback-modal {
    display: none;
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: #fff;
    border-radius: 10px;
    box-shadow: 0 8px 32px rgba(0,0,0,0.18);
    z-index: 10002;
    width: 500px;
    max-width: 98vw;
    padding: 32px 20px 24px 20px;
    font-family: Arial, Helvetica, sans-serif;
    font-size: 15px;
    color: #222;
    overflow-y: auto;
    max-height: 90vh;
}
@media (max-width: 600px) {
    #feedback-modal {
        width: 98vw;
        min-width: 0;
        padding: 18px 4vw 18px 4vw;
        font-size: 14px;
    }
    #feedback-modal .fb-rate-btn, #feedback-modal .fb-easy-btn ,#feedback-modal .fb-value-btn,#feedback-modal .fb-likely-btn {
        width: 32px;
        height: 32px;
        font-size: 15px;
    }
}
#feedback-modal .rating-btn-row {
    display: flex;
    justify-content: space-between;
    margin-bottom: 18px;
}
#feedback-modal .fb-rate-btn {
    width: 70px;
    height: 24px;
    font-size: 16px;
    border-radius: 6px;
    margin: 0 3px;
    border: 1px solid #bdbdbd;
    background: #f5f5f5;
    color: #222;
    cursor: pointer;
    transition: all 0.15s;
    outline: none;
}
#feedback-modal .fb-rate-btn.selected {
    background: #222;
    color: #fff;
    border-color: #222;
}
#feedback-modal .fb-value-btn.selected {
    background: #222;
    color: #fff;
    border-color: #222;
}
@media (max-width: 600px) {
    #feedback-modal .fb-rate-btn {
        width: 50px;
        height: 20px;
        font-size: 15px;
    }
}
#feedback-modal .fb-easy-btn {
    border: 1px solid #bdbdbd;
    background: #f5f5f5;
    color: #222;
    border-radius: 6px;
    width: 70px;
    height: 24px;
    font-size: 16px;
    margin: 0 3px;
    cursor: pointer;
    transition: all 0.15s;
    outline: none;
}
#feedback-modal .fb-likely-btn {
    border: 1px solid #bdbdbd;
    background: #f5f5f5;
    color: #222;
    border-radius: 6px;
    width: 38px;
    height: 24px;
    font-size: 16px;
    margin: 0 3px;
    cursor: pointer;
    transition: all 0.15s;
    outline: none;
}
#feedback-modal .fb-value-btn {
    border: 1px solid #bdbdbd;
    background: #f5f5f5;
    color: #222;
    border-radius: 6px;
    width: 70px;
    height: 24px;
    font-size: 16px;
    margin: 0 3px;
    cursor: pointer;
    transition: all 0.15s;
    outline: none;
}
#feedback-modal .fb-easy-btn.selected {
    background: #222;
    color: #fff;
    border-color: #222;
}
#feedback-modal .fb-value-btn.selected {
    background: #222;
    color: #fff;
    border-color: #222;
}
#feedback-modal .fb-likely-btn.selected {
    background: #222;
    color: #fff;
    border-color: #222;
}
#feedback-modal .fb-rate-btn:focus,
#feedback-modal .fb-easy-btn:focus,
#feedback-modal .fb-value-btn:focus,
#feedback-modal .fb-likely-btn:focus{
    border-color: #0074d9;
}