html,
body {
    width: 100%;
    height: 100%;
    margin: 0;
    padding: 0;
    font-family: 'Alibaba PuHuiTi R';
}

.layui-laypage-skip {
    display: none;
}

.layout {
    display: flex;
    align-items: center;
    justify-content: start;
    box-sizing: border-box;
}

#content {
    width: 100%;
    height: 100%;
    padding: 1%;
    box-sizing: border-box;
    background-color: #f0f0f0;
    justify-content: space-between;
}

#left {
    width: 74%;
    height: 100%;
    flex-direction: column;
    justify-content: space-between;
}

#topic {
    width: 100%;
    height: 70%;
    background-color: #e0e0e0;
    padding: 2%;
    box-sizing: border-box;
    letter-spacing: 1px;
}

.question-title {
    font-size: 18px;
    margin-bottom: 20px;
}

.options {
    margin-bottom: 30px;
}

.option {
    display: flex;
    align-items: center;
    margin: 5px 0;
    font-size: 16px;
    cursor: pointer;
    border-radius: 6px;
    padding: 8px 12px;
    transition: background 0.2s;
    position: relative;
}

/* .option input[type="radio"] { display: none; } */
.option input[type="radio"] {
    width: 24px;
    height: 24px;
    cursor: pointer;
}

.option input[type="checkbox"] {
    width: 24px;
    height: 24px;
    cursor: pointer;
}

.option .circle {
    width: 24px;
    height: 24px;
    border-radius: 50%;
    border: 1px solid #B0B0B0;
    margin-right: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #eee;
    font-size: 16px;
    transition: border-color 0.2s, background 0.2s;
    color: #fff;
}

.option .circle.correct {
    background: #52CA68;
    border: none;
    border-radius: 50%;
}

.option .circle.error {
    background: #FF4447;
    border: none;
    font-size: 24px;
    border-radius: 50%;
    line-height: 24px;
}

.option .square {
    width: 24px;
    height: 24px;
    border: 1px solid #C7C7C7;
    margin-right: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #EEE;
    font-size: 16px;
    transition: border-color 0.2s, background 0.2s;
    color: #fff;
}

.option .square.correct {
    background: #52CA68;
    border: none;
    border-radius: 50%;
}

.option .square.error {
    background: #FF4447;
    border: none;
    font-size: 24px;
    border-radius: 50%;
    line-height: 24px;
}

#answer {
    width: 100%;
    height: 14%;
    background-color: #fff;
}

#topicJump {
    width: 100%;
    height: 14%;
    background-color: #fff;
    justify-content: space-around;
}

#lastTopic,
#nextTopic {
    cursor: pointer;
    color: #707070;
    font-size: 18px;
}

#right {
    width: 25%;
    height: 100%;
    background-color: #fff;
}

#answerSheet {
    width: 100%;
    height: 100%;
}

#answerSheetBox1 {
    width: 100%;
    height: 50px;
    padding: 0 20px;
}

#titleStyle {
    width: 10px;
    height: 24px;
    border-left: 5px solid #409EFF;
    color: #409EFF;
    font-size: 18px;
}

#answerSheetBox1 span {
    font-size: 20px;
    margin-right: 3px;
}

#answerSheetBox1 span:nth-of-type(3) {
    color: #409EFF;
}

#questionTitle {
    font-size: 18px;
    padding: 0 20px;
}

#questionNumber {
    width: 100%;
    max-height: 50%;
    padding: 0 10px;
    flex-wrap: wrap;
    align-items: start;
}

.circle2 {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    border: 1px solid #B0B0B0;
    /* 边框 */
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.2);
    /* 阴影 */
    /* 动画效果（可选） */
    transition: transform 0.3s ease, border-color 0.3s ease;
    margin: 10px;
    cursor: pointer;
    font-size: 14px;
    justify-content: center;
}

.circle2.selected {
    transform: scale(1.3);
    border-color: #2196f3;
    z-index: 1;
}

.circle2.selected2 {
    transform: scale(1.3);
    border-color: #B0B0B0;
    z-index: 1;
}

.circle2:hover {
    transform: scale(1.3);
}



#answeredSign {
    width: 100%;
    height: 50px;
    margin-top: 10%;
    justify-content: space-evenly;
}

#answeredSign>div>div,
#answeredSign>div>p {
    margin: 0 5px;
}

.circle3 {
    width: 20px;
    height: 20px;
    border-radius: 50%;
    border: 1px solid #B0B0B0;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.2);
}

.answeredQuestions {
    border: 1px solid #409EFF;
}

#operBtn {
    width: 100%;
    height: 50px;
    margin-top: 10%;
    justify-content: space-evenly;
}

#tips {
    width: 100%;
    height: 50px;
    margin-top: 10%;
    text-align: center;
}

#tips p {
    font-size: 20px;
    color: red;
    padding: 0 20px;
}

.save-answer-btn {
    width: 20%;
    height: 100%;
}

.answer-box {
    width: 20%;
    height: 100%;
}

.answer {
    width: 50%;
    height: 100%;
    flex-direction: column;
    justify-content: center;
    letter-spacing: 1px;
}

.answer p:nth-child(1) {
    font-size: 18px;
}

.answer:nth-child(1) p:nth-child(2) {
    color: #6FBE62;
    font-size: 20px;
    font-weight: bold;
}

.answer:nth-child(2) p:nth-child(2) {
    color: red;
    font-size: 20px;
    font-weight: bold;
}

.submit-btn {
    width: 90%;
    margin: 0 5%;
    padding: 10px 0;
    background: linear-gradient(90deg, #36a3f7 0%, #4fc3f7 100%);
    color: #fff;
    font-size: 18px;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    outline: none;
    transition: background 0.3s;
    letter-spacing: 2px;
}

.submit-btn:hover {
    background: linear-gradient(90deg, #2196f3 0%, #36a3f7 100%);
}

.submit-btn.submitted,
.submit-btn:disabled {
    background: #cccccc;
    color: #fff;
    cursor: not-allowed;
    box-shadow: none;
}

#lastTopic,
#nextTopic {
    width: 120px;
    margin: 0 5%;
    padding: 10px 0;
    background: linear-gradient(90deg, #36a3f7 0%, #4fc3f7 100%);
    color: #fff;
    font-size: 18px;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    outline: none;
    transition: background 0.3s;
    letter-spacing: 2px;
    justify-content: center;
}

#lastTopic:hover,
#nextTopic:hover {
    background: linear-gradient(90deg, #2196f3 0%, #36a3f7 100%);
}


/* 题目内容容器动画 */
.question-content {
    transition: opacity 0.4s, transform 0.4s;
    opacity: 1;
    transform: translateX(0);
}

.question-content.fade-out-left {
    opacity: 0;
    transform: translateX(-60px);
    pointer-events: none;
}

.question-content.fade-out-right {
    opacity: 0;
    transform: translateX(60px);
    pointer-events: none;
}

.question-content.fade-in-left {
    opacity: 1;
    transform: translateX(0);
    animation: fadeInLeft 0.4s;
}

.question-content.fade-in-right {
    opacity: 1;
    transform: translateX(0);
    animation: fadeInRight 0.4s;
}

@keyframes fadeInLeft {
    from {
        opacity: 0;
        transform: translateX(-60px);
    }

    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes fadeInRight {
    from {
        opacity: 0;
        transform: translateX(60px);
    }

    to {
        opacity: 1;
        transform: translateX(0);
    }
}