/**
 * 武城职在线考试系统 — 正式风格
 * 设计原则：克制、沉稳、专业，适合高校/职能单位使用
 * 配色：深蓝主色调，灰度辅助，无渐变，少动画
 */

/* ===== 变量定义 ===== */
:root {
    /* 主色调：官Logo深蓝 #161592 */
    --color-primary: #161592;
    --color-primary-hover: #0f0f6b;
    --color-primary-light: #2d2db0;

    /* 辅助色：中性灰 */
    --color-text: #2c2c2c;
    --color-text-secondary: #666;
    --color-text-light: #999;
    --color-border: #d9d9d9;
    --color-border-light: #e8e8e8;
    --color-bg: #f5f5f5;
    --color-bg-white: #fff;

    /* 状态色：低饱和度 */
    --color-success: #389e0d;
    --color-success-bg: #f6ffed;
    --color-success-border: #b7eb8f;
    --color-error: #cf1322;
    --color-error-bg: #fff2f0;
    --color-error-border: #ffa39e;
    --color-warning: #ad6800;
    --color-warning-bg: #fffbe6;
    --color-warning-border: #ffe58f;
    --color-info: #161592;
    --color-info-bg: #f0f0ff;
    --color-info-border: #a8a8e0;

    /* 答题卡状态 */
    --color-done: #161592;
    --color-done-bg: #e8e8ff;
    --color-current: #161592;
    --color-current-bg: #fff;
    --color-unanswered: #666;
    --color-unanswered-bg: #fff;
}

/* ===== 基础重置 ===== */
*, *::before, *::after {
    box-sizing: border-box;
}

html {
    box-sizing: border-box;
    height: 100%;
}

body {
    background-color: var(--color-bg);
    font-family: "Microsoft YaHei", "PingFang SC", "Helvetica Neue", sans-serif;
    color: var(--color-text);
    font-size: 14px;
    line-height: 1.6;
    height: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
}

/* ===== 滚动条 ===== */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track-piece { background: #f0f0f0; border-radius: 3px; }
::-webkit-scrollbar-thumb { background: #ccc; border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: #bbb; }

/* ===== 登录页 ===== */
body.login-page {
    background: #e8ecf0;
    min-height: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto;
    padding: 0;
}

.login-wrapper {
    width: 100%;
    max-width: 400px;
}

.login-container {
    background: var(--color-bg-white);
    border-radius: 4px;
    padding: 40px;
    border: 1px solid var(--color-border-light);
    /* 无阴影，无动画，干净利落 */
}

.login-header {
    text-align: center;
    margin-bottom: 30px;
}

.logo {
    width: 64px;
    height: 64px;
    background: var(--color-primary);
    border-radius: 6px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 16px;
}

.logo .layui-icon {
    font-size: 32px;
    color: #fff;
}

.login-title {
    font-size: 20px;
    color: var(--color-text);
    margin: 0;
    font-weight: bold;
}

.login-subtitle {
    font-size: 13px;
    color: var(--color-text-secondary);
    margin-top: 6px;
}

.login-form .layui-form-item {
    margin-bottom: 18px;
}

.login-form .layui-input-block {
    margin-left: 0;
}

.login-form .layui-input {
    height: 40px;
    line-height: 40px;
    border-radius: 3px;
    border: 1px solid var(--color-border);
    padding-left: 40px;
}

.login-form .layui-input:focus {
    border-color: var(--color-primary);
    box-shadow: none;
}

.input-icon {
    position: absolute;
    left: 12px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--color-text-light);
    font-size: 16px;
    z-index: 999;
}

.input-wrapper {
    position: relative;
}

/* 登录按钮：纯色，无渐变 */
.login-btn {
    width: 100%;
    height: 42px;
    font-size: 15px;
    border-radius: 3px;
    background: var(--color-primary);
    border: none;
}

.login-btn:hover {
    background: var(--color-primary-hover);
    opacity: 1;
}

.login-btn:active {
    transform: none;
}

.login-footer {
    text-align: center;
    margin-top: 20px;
    color: var(--color-text-secondary);
    font-size: 12px;
}

/* ===== 页面头部 ===== */
.header {
    background-color: var(--color-bg-white);
    border-bottom: 1px solid var(--color-border-light);
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
}

.main-container {
    margin-top: 60px;
}

.page-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px 15px;
    box-sizing: border-box;
    width: 100%;
}

.header-inner {
    padding: 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.header-inner .user-info {
    flex-shrink: 0;
}

.site-logo {
    display: flex;
    align-items: center;
    height: 60px;
}

.site-logo img {
    height: 40px;
    margin-right: 10px;
    border-radius: 4px;
}

.site-logo .title {
    font-size: 18px;
    color: var(--color-primary);
    font-weight: bold;
}

.user-info {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    height: 60px;
    padding-right: 15px;
    gap: 15px;
}

.user-info .avatar {
    width: 34px;
    height: 34px;
    border-radius: 50%;
    margin-right: 8px;
    background: var(--color-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    color: #fff;
}

.user-info .avatar:hover {
    transform: none;
}

.user-info .name {
    color: var(--color-text);
    font-weight: 500;
}

.user-info .name:hover {
    color: var(--color-primary);
}

.user-info .layui-btn {
    transition: none;
}

.user-info .layui-btn:hover {
    transform: none;
    box-shadow: none;
}

/* ===== 考试列表页 ===== */
.exam-list-container {
    margin-top: 20px;
}

/* 考试卡片：无动画，无阴影，无悬停位移 */
.exam-card {
    background-color: var(--color-bg-white);
    border-radius: 4px;
    overflow: hidden;
    border: 1px solid var(--color-border-light);
    margin-bottom: 16px;
}

.exam-card:hover {
    box-shadow: none;
    transform: none;
    border-color: var(--color-border);
}

.exam-card.disabled {
    opacity: 0.75;
    cursor: not-allowed;
}

.exam-card-content {
    padding: 20px 24px;
}

/* 考试列表卡片头部：单行布局，左边标题+状态，右边倒计时+按钮 */
.exam-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    /*margin-bottom: 14px;*/
}

/* 左侧：标题 + 状态徽章 */
.exam-title-row {
    display: flex;
    align-items: center;
    gap: 10px;
    flex: 1;
    min-width: 0;
}

.exam-title {
    font-size: 16px;
    color: var(--color-text);
    margin: 0;
    font-weight: 600;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    flex-shrink: 1;
}

.exam-title .layui-icon {
    color: var(--color-primary);
    margin-right: 8px;
    font-size: 17px;
    flex-shrink: 0;
}

.exam-title-row .layui-badge {
    flex-shrink: 0;
    /*line-height: 1.8;*/
    font-size: 12px;
    padding: 0 8px;
}

/* 右侧：倒计时 + 按钮 */
.exam-actions {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-shrink: 0;
}

.exam-countdown {
    font-size: 13px;
    color: var(--color-text-secondary);
    white-space: nowrap;
    font-weight: 500;
    display: block;
    align-items: center;
    gap: 4px;
}

.exam-countdown i {
    font-size: 14px;
}

.exam-countdown .countdown-text {
    font-family: 'Courier New', monospace;
    font-weight: 600;
    color: var(--color-warning);
}

.exam-actions .layui-btn {
    height: 32px;
    line-height: 32px;
    font-size: 13px;
    padding: 0 16px;
}

.exam-info {
    border-top: 1px solid var(--color-border-light);
    padding-top: 12px;
}

.info-row {
    display: flex;
    gap: 24px;
    flex-wrap: wrap;
}

.info-item {
    display: flex;
    align-items: center;
    color: var(--color-text-secondary);
    font-size: 13px;
    gap: 5px;
}

.info-item .layui-icon {
    color: var(--color-text-light);
    font-size: 14px;
}

/* 空数据 */
.empty-data {
    text-align: center;
    padding: 80px 20px;
    color: var(--color-text-light);
    background-color: var(--color-bg-white);
    border-radius: 4px;
    border: 1px solid var(--color-border-light);
}

.empty-data .layui-icon {
    font-size: 48px;
    color: #d9d9d9;
    margin-bottom: 16px;
}

.empty-data p {
    margin: 4px 0;
    font-size: 14px;
}

/* ===== 答题页 ===== */
.exam-container {
    display: flex;
    height: calc(100vh - 60px);
    gap: 16px;
    padding: 0;
    margin: 0;
    overflow: hidden;
    box-sizing: border-box;
}

.exam-main {
    flex: 1;
    display: flex;
    flex-direction: column;
    min-width: 0;
    overflow: hidden;
    background: var(--color-bg-white);
}

/* 右侧信息栏：高度100%，自身不滚动 */
.exam-sidebar {
    width: 280px;
    flex-shrink: 0;
    display: flex;
    flex-direction: column;
    gap: 12px;
    height: 100%;
    overflow: visible;
}

/* 答题卡区域（答题页）：占满 sidebar 剩余空间，内部独立滚动 */
.exam-sidebar #answerSheet,
.exam-sidebar .answer-sheet {
    flex: 1;
    min-height: 0;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
}

.exam-header {
    padding: 16px 24px;
    background: var(--color-bg-white);
    border-bottom: 1px solid var(--color-border-light);
}

.exam-header h2 {
    margin: 0;
    color: var(--color-text);
    font-size: 16px;
}

.exam-header p {
    color: var(--color-text-secondary);
}

/* 题目卡片：无动画 */
.question-card {
    padding: 20px 24px;
    border-bottom: 1px solid var(--color-border-light);
}

.question-card:last-child {
    border-bottom: none;
}

.question-card:hover {
    background-color: var(--color-bg-white);
}

.question-controls {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 12px;
}

/* 题目类型标签：纯色无渐变 */
.question-type {
    display: inline-block;
    padding: 2px 10px;
    background: var(--color-primary);
    color: #fff;
    border-radius: 3px;
    font-size: 12px;
}

.question-number {
    font-weight: 600;
    color: var(--color-text);
    font-size: 15px;
    margin-left: 8px;
}

.question-score {
    color: var(--color-text-secondary);
    font-size: 13px;
    padding: 2px 8px;
    background: var(--color-bg);
    border-radius: 3px;
    border-left: 3px solid var(--color-border);
}

.question-title {
    font-size: 16px;
    color: var(--color-text);
    margin: 16px 0;
    line-height: 1.8;
    padding-left: 14px;
    border-left: 3px solid var(--color-primary);
    background: var(--color-info-bg);
    padding: 12px 16px;
}

.question-options {
    margin: 16px 0;
}

/* 选项：无动画，无悬停位移 */
.option-item {
    margin: 0;
    display: flex;
    align-items: center;
}

.option-item:hover {
    transform: none;
}

.option-item input[type="radio"],
.option-item input[type="checkbox"] {
    margin-right: 12px;
    margin-left: 0;
    width: 16px;
    height: 16px;
    cursor: pointer;
}

.option-label {
    flex: 1;
    line-height: 1.7;
    cursor: pointer;
    padding: 10px 14px;
    border-radius: 3px;
    font-size: 15px;
    transition: background-color 0.15s;
}

.option-label:hover {
    background-color: var(--color-info-bg);
}

.option-item input[type="radio"]:checked + .option-label,
.option-item input[type="checkbox"]:checked + .option-label {
    background: var(--color-info-bg);
    border-left-color: var(--color-primary);
    color: var(--color-primary);
    font-weight: 500;
    border-left: 3px solid var(--color-primary);
}

.option-text {
    display: inline-block;
    min-width: 22px;
    margin-right: 10px;
    font-weight: 600;
    color: var(--color-text-secondary);
    font-size: 15px;
}

/* 填空/问答输入框 */
.textarea-answer {
    width: 100%;
    min-height: 90px;
    padding: 10px;
    border: 1px solid var(--color-border);
    border-radius: 3px;
    resize: vertical;
    font-size: 14px;
    line-height: 1.6;
    font-family: inherit;
}

.textarea-answer:focus {
    border-color: var(--color-primary);
    outline: none;
    box-shadow: none;
    transform: none;
}

/* ===== 侧边栏信息卡 ===== */
.info-card {
    background: var(--color-bg-white);
    border-radius: 4px;
    padding: 18px;
    border: 1px solid var(--color-border-light);
}

.info-card:hover {
    box-shadow: none;
    transform: none;
}

.info-card-title {
    font-size: 15px;
    font-weight: 600;
    margin-bottom: 12px;
    padding-bottom: 10px;
    border-bottom: 2px solid var(--color-primary);
    color: var(--color-text);
    display: flex;
    align-items: center;
}

.info-card-title::before {
    content: "";
    display: inline-block;
    width: 3px;
    height: 16px;
    background: var(--color-primary);
    margin-right: 8px;
    border-radius: 2px;
}

/* 计时器：无渐变背景 */
.timer {
    font-size: 36px;
    color: var(--color-text);
    text-align: center;
    margin: 16px 0;
    font-weight: bold;
    font-family: 'Courier New', monospace;
    background: var(--color-bg);
    padding: 12px;
    border-radius: 4px;
    border: 1px solid var(--color-border-light);
}

.timer-text {
    text-align: center;
    color: var(--color-text-secondary);
    font-weight: 600;
    margin-top: -8px;
    margin-bottom: 16px;
    font-size: 13px;
}

.exam-info {
    margin-top: 16px;
    padding: 0 16px;
    background: var(--color-bg);
    border-radius: 4px;
    border: 1px solid var(--color-border-light);
}

.exam-info p {
    font-size: 13px;
    color: var(--color-text);
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 8px 0;
    border-bottom: 1px solid var(--color-border-light);
}

.exam-info p:last-child {
    border-bottom: none;
}

.exam-info p::before {
    content: "";
    display: none;
}

/* 交卷按钮 */
.submit-btn {
    width: 100%;
    height: 42px;
    font-size: 15px;
    font-weight: 600;
    border-radius: 4px;
    transition: none;
    border: none;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
}

.submit-btn.layui-btn-danger {
    background: var(--color-error);
    color: #fff;
}

.submit-btn.layui-btn-danger:hover {
    background: #a8071a;
}

.submit-btn.layui-btn-normal {
    background: var(--color-primary);
    color: #fff;
}

.submit-btn.layui-btn-normal:hover {
    background: var(--color-primary-hover);
}

/* 答题卡 */
.answer-sheet {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(30px, 1fr));
    gap: 5px;
    padding: 8px 0;
}

.answer-item {
    width: 100%;
    height: 30px;
    line-height: 30px;
    text-align: center;
    border: 1px solid var(--color-border);
    border-radius: 3px;
    cursor: pointer;
    font-size: 12px;
    font-weight: 500;
    color: var(--color-text-secondary);
    background: var(--color-bg-white);
}

.answer-item:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
    transform: none;
    box-shadow: none;
}

.answer-item.answered {
    background: var(--color-done);
    color: #fff;
    border-color: var(--color-done);
}

.answer-item.current {
    background: var(--color-bg-white);
    color: var(--color-text);
    border: 1px solid var(--color-primary);
    font-weight: 700;
}

.answer-item.marked {
    background: #f5f5f5;
    color: var(--color-text-secondary);
    border: 2px solid var(--color-warning-border);
}

/* 答题卡图例 */
.answer-legend {
    margin-top: 10px;
    font-size: 12px;
    color: var(--color-text-secondary);
    padding: 10px 14px;
    background: var(--color-bg);
    border-radius: 4px;
    border: 1px solid var(--color-border-light);
    display: flex;
    flex-wrap: nowrap;
    gap: 16px;
    width:100%;
    justify-content: space-between;
}

.answer-legend-item {
    display: flex;
    align-items: center;
    gap: 6px;
    flex-shrink: 0;
}

.answer-legend-title {
    font-weight: 600;
    margin-bottom: 8px;
    font-size: 13px;
    color: var(--color-text);
}

.legend-box {
    width: 18px;
    height: 18px;
    margin-right: 6px;
    border-radius: 3px;
    border: 1px solid var(--color-border);
}

.legend-box.answered {
    background: var(--color-done);
    border-color: var(--color-done);
}

.legend-box.unanswered {
    background: var(--color-bg-white);
    border-color: var(--color-border);
}

.legend-box.current {
    background: var(--color-bg-white);
    border: 2px solid var(--color-primary);
}

.legend-box.marked {
    background: #f5f5f5;
    border: 2px solid var(--color-warning-border);
}

/* ===== 结果页 ===== */
.result-container {
    max-width: 900px;
    margin: 24px auto;
    padding: 0 16px;
}

.result-card {
    background: var(--color-bg-white);
    border-radius: 4px;
    border: 1px solid var(--color-border-light);
    overflow: hidden;
    margin-bottom: 16px;
}

/* 结果页头部：纯色无渐变 */
.result-header {
    background: var(--color-primary);
    color: #fff;
    padding: 32px 40px;
    text-align: center;
}

.result-title {
    font-size: 26px;
    font-weight: bold;
    margin-bottom: 8px;
    color: #fff;
}

.result-subtitle {
    font-size: 16px;
    color: rgba(255,255,255,0.8);
}

.score-display {
    display: flex;
    justify-content: center;
    gap: 60px;
    margin: 32px 0;
}

.score-item {
    text-align: center;
}

.score-label {
    font-size: 13px;
    color: var(--color-text-secondary);
    margin-bottom: 6px;
}

.score-value {
    font-size: 32px;
    font-weight: bold;
    color: var(--color-text);
}

.score-value.pass {
    color: var(--color-success);
}

.score-value.fail {
    color: var(--color-error);
}

/* 状态徽章 */
.status-badge {
    display: inline-block;
    padding: 6px 24px;
    border-radius: 3px;
    font-size: 16px;
    font-weight: bold;
    margin-top: 16px;
}

.status-badge.pass {
    background: var(--color-success);
    color: #fff;
}

.status-badge.fail {
    background: var(--color-error);
    color: #fff;
}

/* 信息网格 */
.info-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 16px;
    padding: 24px;
}

.info-item {
    text-align: center;
    padding: 16px;
    background: var(--color-bg);
    border-radius: 4px;
    border: 1px solid var(--color-border-light);
}

.info-item:hover {
    transform: none;
    box-shadow: none;
}

.info-icon {
    font-size: 28px;
    margin-bottom: 8px;
}

.info-icon[data-icon="ok"] { color: var(--color-success); }
.info-icon[data-icon="close"] { color: var(--color-error); }
.info-icon[data-icon="help"] { color: var(--color-warning); }
.info-icon[data-icon="time"] { color: var(--color-primary); }
.info-icon[data-icon="percent"] { color: var(--color-primary); }

.info-value {
    font-size: 22px;
    font-weight: bold;
    color: var(--color-text);
}

.info-label {
    font-size: 13px;
    color: var(--color-text-secondary);
    margin-top: 4px;
}

.action-buttons {
    padding: 24px;
    display: flex;
    justify-content: center;
    gap: 16px;
}

.action-buttons .layui-btn {
    padding: 10px 28px;
    font-size: 15px;
}

.chart-container {
    padding: 24px;
    height: 280px;
}

/* 环形图图例 */
.result-chart-legend {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-top: 14px;
}

.legend-item {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 13px;
    color: var(--color-text-secondary);
}

.legend-dot {
    display: inline-block;
    width: 10px;
    height: 10px;
    border-radius: 50%;
}

/* ===== 解析页 ===== */
.analysis-container {
    margin-top: 20px;
}

.analysis-card {
    background: var(--color-bg-white);
    border-radius: 4px;
    border: 1px solid var(--color-border-light);
    margin-bottom: 16px;
    overflow: hidden;
}

.question-header {
    background: var(--color-bg);
    border-bottom: 1px solid var(--color-border-light);
    padding: 16px 24px;
}

.question-meta {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-top: 8px;
    font-size: 13px;
    color: var(--color-text-secondary);
}

.question-content {
    padding: 20px 24px;
}

.answer-section {
    margin: 20px 0;
    padding: 16px;
    border-radius: 4px;
}

.student-answer {
    background: var(--color-info-bg);
    border: 1px solid var(--color-info-border);
}

.correct-answer {
    background: var(--color-success-bg);
    border: 1px solid var(--color-success-border);
}

.analysis-section {
    background: var(--color-warning-bg);
    border: 1px solid var(--color-warning-border);
}

.section-title {
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 8px;
    display: flex;
    align-items: center;
}

.section-title .layui-icon {
    margin-right: 6px;
}

.student-answer .section-title { color: var(--color-info); }
.correct-answer .section-title { color: var(--color-success); }
.analysis-section .section-title { color: var(--color-warning); }

.answer-badge {
    display: inline-block;
    padding: 2px 8px;
    border-radius: 3px;
    font-size: 12px;
    margin-left: 8px;
}

.badge-correct {
    background: var(--color-success);
    color: #fff;
}

.badge-wrong {
    background: var(--color-error);
    color: #fff;
}

/* 解析页选项 */
.option-item.correct {
    background: var(--color-success-bg);
    border: 1px solid var(--color-success-border);
}

.option-item.wrong {
    background: var(--color-error-bg);
    border: 1px solid var(--color-error-border);
}

.option-item.correct .option-label {
    background: transparent;
    color: var(--color-success);
    font-weight: 600;
}

.option-item.wrong .option-label {
    background: transparent;
    color: var(--color-error);
}

.option-item.correct .option-label {
    background: transparent;
    border-left-color: transparent;
}

.option-item.correct:hover,
.option-item.wrong:hover {
    transform: none;
}

/* 答题页计时器 */
.exam-timer {
    font-size: 20px;
    font-weight: 700;
    color: #cf1322;
    font-family: 'Courier New', monospace;
    letter-spacing: 2px;
    white-space: nowrap;
}

/* 答题卡标题 */
.answer-card-title {
    font-size: 14px;
    color: var(--color-text);
    margin-bottom: 10px;
    padding-bottom: 8px;
    font-weight: 600;
    display: flex;
    align-items: center;
}

/* 答题卡 */
.answer-card-list {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    padding: 4px 0;
    align-content: flex-start;
}

.answer-card-item {
    width: 32px;
    height: 32px;
    line-height: 32px;
    text-align: center;
    border: 1px solid var(--color-border);
    border-radius: 3px;
    cursor: pointer;
    transition: none;
    font-size: 12px;
}

.answer-card-item:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
}

.answer-card-item.answered {
    background-color: var(--color-success);
    color: #fff;
    border-color: var(--color-success);
}

.answer-card-item.current {
    background-color: var(--color-bg-white);
    color: var(--color-text);
    border: 2px solid var(--color-primary);
    font-weight: 700;
}

.answer-card-item.wrong {
    background-color: var(--color-error);
    color: #fff;
    border-color: var(--color-error);
}

/* 分析内容 */
.analysis-content {
    line-height: 1.7;
}

/* ===== 响应式 ===== */
@media (max-width: 768px) {
    body {
        padding: 10px;
    }

    .exam-container {
        flex-direction: column;
        gap: 12px;
    }

    .exam-sidebar {
        width: 100%;
    }

    .exam-header {
        padding: 12px 16px;
    }

    .question-card {
        padding: 16px;
    }

    .score-display {
        gap: 30px;
    }

    .info-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 12px;
        padding: 16px;
    }

    .result-header {
        padding: 24px;
    }

    .result-title {
        font-size: 20px;
    }
}

@media (max-width: 480px) {
    .exam-card-content {
        padding: 16px;
    }

    .exam-title {
        font-size: 15px;
    }
}

/* ===== 辅助工具类 ===== */
.paper_info {
    background: none;
    border: none;
    box-shadow: none;
    padding: 0;
}

.paper_header {
    border: none;
}

.back-button {
    margin-bottom: 16px;
}

.card-header-title {
    font-size: 16px;
    font-weight: 600;
    padding: 14px 20px;
    border-bottom: 1px solid var(--color-border-light);
}

.card-header-title i {
    font-size: 16px;
    margin-right: 6px;
}