/* ============ 全局样式 ============ */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary: #4A90D9;
    --primary-dark: #357ABD;
    --primary-light: #E3F2FD;
    --success: #10B981;
    --success-light: #E8F5E9;
    --warning: #F59E0B;
    --warning-light: #FFF3E0;
    --danger: #EF4444;
    --danger-light: #FEE2E2;
    --text-primary: #1a1a2e;
    --text-secondary: #666;
    --text-muted: #999;
    --bg-page: #f5f7fa;
    --bg-card: #ffffff;
    --border: #e8ecf1;
    --shadow-sm: 0 2px 8px rgba(0,0,0,0.06);
    --shadow-md: 0 4px 16px rgba(0,0,0,0.1);
    --shadow-lg: 0 8px 32px rgba(0,0,0,0.15);
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 20px;
    --transition: all 0.3s ease;
    --sp-xs: 4px;
    --sp-sm: 8px;
    --sp-md: 12px;
    --sp-lg: 16px;
    --sp-xl: 20px;
    --sp-2xl: 24px;
    --sp-3xl: 32px;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', sans-serif;
    background: var(--bg-page);
    color: var(--text-primary);
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
    line-height: 1.5;
}

#app {
    max-width: 800px;
    margin: 0 auto;
    min-height: 100vh;
    background: var(--bg-card);
    box-shadow: var(--shadow-md);
    position: relative;
}

/* ============ 滚动条美化 ============ */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: #ccc; border-radius: 3px; }

/* ============ 登录页 ============ */
#auth-page {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 50%, #f093fb 100%);
    padding: var(--sp-xl);
}

.auth-container {
    background: #fff;
    border-radius: var(--radius-xl);
    padding: var(--sp-3xl) var(--sp-2xl);
    width: 100%;
    max-width: 420px;
    box-shadow: var(--shadow-lg);
    animation: slideUp 0.5s ease;
}

@keyframes slideUp {
    from { opacity: 0; transform: translateY(30px); }
    to { opacity: 1; transform: translateY(0); }
}

.auth-container h1 {
    font-size: 24px;
    text-align: center;
    margin-bottom: var(--sp-2xl);
    color: var(--text-primary);
    font-weight: 700;
}

.auth-tabs {
    display: flex;
    gap: var(--sp-sm);
    margin-bottom: var(--sp-xl);
    background: #f0f0f0;
    border-radius: var(--radius-md);
    padding: var(--sp-xs);
}

.tab-btn {
    flex: 1;
    padding: var(--sp-md);
    border: none;
    background: transparent;
    border-radius: var(--radius-sm);
    font-size: 16px;
    cursor: pointer;
    transition: var(--transition);
    font-weight: 500;
    color: var(--text-secondary);
}

.tab-btn.active {
    background: #fff;
    color: var(--primary);
    font-weight: 700;
    box-shadow: var(--shadow-sm);
}

.auth-form {
    display: flex;
    flex-direction: column;
    gap: var(--sp-lg);
}

.auth-form input,
.auth-form select {
    padding: var(--sp-lg) var(--sp-xl);
    border: 2px solid var(--border);
    border-radius: var(--radius-md);
    font-size: 16px;
    outline: none;
    transition: var(--transition);
    width: 100%;
    background: #fafbfc;
}

.auth-form input:focus,
.auth-form select:focus {
    border-color: var(--primary);
    background: #fff;
    box-shadow: 0 0 0 3px rgba(74,144,217,0.1);
}

.auth-form button {
    padding: var(--sp-lg);
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: #fff;
    border: none;
    border-radius: var(--radius-md);
    font-size: 16px;
    font-weight: 700;
    cursor: pointer;
    transition: var(--transition);
    letter-spacing: 2px;
}

.auth-form button:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(74,144,217,0.4);
}

/* ============ 主页面 ============ */
header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--sp-lg) var(--sp-xl);
    background: rgba(255,255,255,0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 100;
}

header h1 {
    font-size: 20px;
    font-weight: 700;
    background: linear-gradient(135deg, var(--primary), #764ba2);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.user-info {
    display: flex;
    align-items: center;
    gap: var(--sp-md);
}

.user-info span {
    font-size: 14px;
    color: var(--text-secondary);
}

.user-info button {
    padding: var(--sp-sm) var(--sp-lg);
    border: none;
    background: var(--bg-page);
    border-radius: var(--radius-sm);
    font-size: 13px;
    cursor: pointer;
    transition: var(--transition);
}

.user-info button:hover {
    background: var(--danger-light);
    color: var(--danger);
}

main {
    padding-bottom: 70px;
}

/* ============ 内容页面 ============ */
.content-page {
    display: none;
    padding: var(--sp-xl);
    animation: fadeIn 0.3s ease;
}

.content-page.active {
    display: block;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

/* ============ 首页 ============ */
.welcome-card {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: #fff;
    border-radius: var(--radius-lg);
    padding: var(--sp-2xl);
    position: relative;
    overflow: hidden;
    margin-bottom: var(--sp-lg);
}

.welcome-card::before {
    content: '📚';
    position: absolute;
    right: var(--sp-xl);
    top: 50%;
    transform: translateY(-50%);
    font-size: 60px;
    opacity: 0.2;
}

.welcome-card h2 {
    font-size: 22px;
    margin-bottom: var(--sp-sm);
    font-weight: 700;
}

.welcome-card p {
    font-size: 14px;
    opacity: 0.9;
    margin-bottom: var(--sp-xl);
}

.welcome-card button {
    padding: var(--sp-md) var(--sp-2xl);
    background: #fff;
    color: #764ba2;
    border: none;
    border-radius: var(--radius-md);
    font-size: 15px;
    font-weight: 700;
    cursor: pointer;
    transition: var(--transition);
}

.reminder-card {
    background: #fff;
    border-radius: var(--radius-md);
    padding: var(--sp-lg);
    box-shadow: var(--shadow-sm);
    border-left: 4px solid var(--primary);
    margin-bottom: var(--sp-md);
}

.reminder-card h3 {
    font-size: 15px;
    margin-bottom: var(--sp-xs);
    font-weight: 600;
}

.reminder-card p {
    font-size: 13px;
    color: var(--text-secondary);
}

.mistake-reminder {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: var(--warning-light);
    border-radius: var(--radius-md);
    padding: var(--sp-lg);
    border-left: 4px solid var(--warning);
    margin-bottom: var(--sp-md);
}

.mistake-reminder p {
    font-size: 14px;
    color: #92400e;
}

.btn-next {
    padding: var(--sp-sm) var(--sp-xl);
    background: var(--warning);
    color: #fff;
    border: none;
    border-radius: var(--radius-sm);
    font-size: 14px;
    font-weight: 700;
    cursor: pointer;
    white-space: nowrap;
}

.continue-card {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: var(--success-light);
    border-radius: var(--radius-md);
    padding: var(--sp-lg);
    border-left: 4px solid var(--success);
    margin-bottom: var(--sp-md);
}

.continue-card p {
    font-size: 14px;
    color: #065f46;
}

.btn-know {
    padding: var(--sp-sm) var(--sp-xl);
    background: var(--success);
    color: #fff;
    border: none;
    border-radius: var(--radius-sm);
    font-size: 14px;
    font-weight: 700;
    cursor: pointer;
    white-space: nowrap;
}

.quick-stats {
    display: flex;
    gap: var(--sp-md);
}

.stat-card {
    flex: 1;
    background: #fff;
    border-radius: var(--radius-md);
    padding: var(--sp-xl);
    text-align: center;
    box-shadow: var(--shadow-sm);
}

.stat-num {
    display: block;
    font-size: 32px;
    font-weight: 700;
    background: linear-gradient(135deg, var(--primary), #764ba2);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-label {
    font-size: 13px;
    color: var(--text-secondary);
    margin-top: var(--sp-xs);
}

/* ============ 选择器 ============ */
.selector-row {
    display: flex;
    flex-wrap: wrap;
    gap: var(--sp-sm);
    margin-bottom: var(--sp-lg);
}

.selector-row select {
    flex: 1;
    min-width: 100px;
    padding: var(--sp-md);
    border: 2px solid var(--border);
    border-radius: var(--radius-sm);
    font-size: 14px;
    outline: none;
    background: #fff;
    cursor: pointer;
}

/* ============ 模式标签 ============ */
.mode-tabs {
    display: flex;
    gap: var(--sp-sm);
    margin-bottom: var(--sp-lg);
    flex-wrap: wrap;
}

.mode-btn {
    flex: 1;
    min-width: 60px;
    padding: var(--sp-md) var(--sp-sm);
    border: 2px solid var(--border);
    background: #fff;
    border-radius: var(--radius-sm);
    font-size: 13px;
    cursor: pointer;
    font-weight: 500;
    color: var(--text-secondary);
}

.mode-btn.active {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: #fff;
    font-weight: 700;
    border-color: var(--primary);
}

/* ============ 进度条 ============ */
.stage-bar {
    display: flex;
    align-items: center;
    gap: var(--sp-xs);
    margin-bottom: var(--sp-lg);
    font-size: 11px;
    flex-wrap: wrap;
}

.stage-step {
    padding: var(--sp-xs) var(--sp-md);
    border-radius: 20px;
    background: #f0f0f0;
    color: var(--text-muted);
    font-weight: 500;
}

.stage-step.active {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: #fff;
}

.stage-step.done {
    background: var(--success);
    color: #fff;
}

.stage-arrow { color: #ccc; }

.memory-stats {
    font-size: 13px;
    margin-bottom: var(--sp-sm);
    display: flex;
    gap: var(--sp-md);
}

.progress-bar {
    width: 100%;
    height: 8px;
    background: var(--border);
    border-radius: 4px;
    overflow: hidden;
    margin-bottom: var(--sp-xs);
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--primary), #764ba2);
    border-radius: 4px;
}

.progress-text {
    font-size: 12px;
    color: var(--text-muted);
    text-align: center;
    margin-bottom: var(--sp-lg);
}

/* ============ 单词卡片 ============ */
.word-card-baizhan {
    background: #fff;
    border-radius: var(--radius-lg);
    padding: var(--sp-3xl) var(--sp-2xl);
    text-align: center;
    box-shadow: var(--shadow-md);
    margin-bottom: var(--sp-lg);
    border: 1px solid var(--border);
}

.word-english {
    font-size: 38px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--sp-sm);
    letter-spacing: 2px;
}

.word-phonetic {
    font-size: 17px;
    color: var(--text-muted);
    margin-bottom: var(--sp-lg);
}

.speak-btn {
    padding: var(--sp-md) var(--sp-xl);
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: #fff;
    border: none;
    border-radius: 25px;
    font-size: 15px;
    cursor: pointer;
    min-height: 44px;
    font-weight: 600;
}

.example-box {
    background: #f8fafc;
    border-radius: var(--radius-sm);
    padding: var(--sp-lg);
    margin-top: var(--sp-lg);
    text-align: left;
    border-left: 3px solid var(--primary-light);
}

.example-text {
    font-size: 15px;
    color: #444;
    margin-bottom: var(--sp-xs);
    line-height: 1.6;
}

.example-speak-btn {
    background: none;
    border: none;
    cursor: pointer;
    font-size: 16px;
    padding: var(--sp-xs);
}

.example-translation {
    font-size: 14px;
    color: var(--text-muted);
}

.word-meta {
    display: flex;
    gap: var(--sp-sm);
    justify-content: center;
    margin-top: var(--sp-lg);
}

.pos-badge {
    background: var(--primary-light);
    color: var(--primary-dark);
    padding: var(--sp-xs) var(--sp-lg);
    border-radius: 20px;
    font-size: 13px;
    font-weight: 600;
}

.phrase-badge {
    background: var(--warning-light);
    color: #92400e;
    padding: var(--sp-xs) var(--sp-lg);
    border-radius: 20px;
    font-size: 13px;
    font-weight: 600;
}

.word-chinese {
    font-size: 24px;
    font-weight: 700;
    color: var(--text-primary);
    margin-top: var(--sp-lg);
}

.word-nav {
    display: flex;
    gap: var(--sp-md);
    justify-content: center;
}

.btn-nav {
    padding: var(--sp-md) var(--sp-xl);
    border: none;
    background: #fff;
    border-radius: var(--radius-sm);
    font-size: 15px;
    cursor: pointer;
    min-height: 44px;
    font-weight: 500;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border);
}

.btn-nav.primary {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: #fff;
    font-weight: 700;
    border: none;
}

.btn-nav:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* ============ 选择题 ============ */
.question-card {
    background: #fff;
    border-radius: var(--radius-md);
    padding: var(--sp-lg);
    box-shadow: var(--shadow-sm);
    margin-bottom: var(--sp-md);
    border: 1px solid var(--border);
}

.option-btn {
    display: block;
    width: 100%;
    padding: var(--sp-lg);
    margin-bottom: var(--sp-sm);
    border: 2px solid var(--border);
    border-radius: var(--radius-sm);
    background: #fff;
    font-size: 15px;
    cursor: pointer;
    text-align: left;
    min-height: 44px;
    font-weight: 500;
}

.option-btn:last-child { margin-bottom: 0; }

.option-btn:hover {
    border-color: var(--primary);
    background: #f8fafc;
}

.option-btn.selected {
    border-color: var(--primary);
    background: var(--primary-light);
    color: var(--primary-dark);
    font-weight: 600;
}

.submit-btn {
    width: 100%;
    padding: var(--sp-lg);
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: #fff;
    border: none;
    border-radius: var(--radius-sm);
    font-size: 16px;
    font-weight: 700;
    cursor: pointer;
    min-height: 44px;
    margin-top: var(--sp-md);
}

/* ============ 连词成句 ============ */
.sentence-words {
    display: flex;
    flex-wrap: wrap;
    gap: var(--sp-sm);
    margin-bottom: var(--sp-md);
}

.sentence-word-btn {
    padding: var(--sp-md) var(--sp-lg);
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: #fff;
    border: none;
    border-radius: var(--radius-sm);
    font-size: 14px;
    cursor: pointer;
    min-height: 40px;
    font-weight: 600;
}

.sentence-word-btn.used {
    background: #e0e0e0;
    color: #aaa;
    pointer-events: none;
}

.sentence-answer {
    display: flex;
    flex-wrap: wrap;
    gap: var(--sp-sm);
    min-height: 44px;
    padding: var(--sp-md);
    background: #f8fafc;
    border-radius: var(--radius-sm);
    margin-bottom: var(--sp-md);
    border: 2px dashed var(--border);
}

.sentence-answer-word {
    padding: var(--sp-sm) var(--sp-md);
    background: var(--success);
    color: #fff;
    border-radius: var(--radius-sm);
    font-size: 14px;
    cursor: pointer;
    font-weight: 600;
}

/* ============ 阅读理解 ============ */
.reading-passage {
    background: #f8fafc;
    padding: var(--sp-lg);
    border-radius: var(--radius-sm);
    font-size: 15px;
    color: #444;
    margin-bottom: var(--sp-md);
    line-height: 1.6;
    border-left: 3px solid var(--primary);
}

/* ============ 报告 ============ */
.report-card {
    background: #fff;
    border-radius: var(--radius-md);
    padding: var(--sp-xl);
    box-shadow: var(--shadow-md);
}

.report-card h3 {
    text-align: center;
    margin-bottom: var(--sp-lg);
    font-size: 18px;
    font-weight: 700;
}

.report-item {
    display: flex;
    justify-content: space-between;
    padding: var(--sp-md) 0;
    border-bottom: 1px solid #f0f0f0;
    font-size: 14px;
}

.report-item:last-child { border-bottom: none; }

.report-actions {
    display: flex;
    gap: var(--sp-md);
    margin-top: var(--sp-lg);
    justify-content: center;
}

/* ============ 进度页 ============ */
.detail-item {
    background: #fff;
    border-radius: var(--radius-sm);
    padding: var(--sp-lg);
    margin-bottom: var(--sp-sm);
    box-shadow: var(--shadow-sm);
    font-size: 14px;
    line-height: 1.6;
    border: 1px solid var(--border);
}

/* ============ 底部导航 ============ */
.bottom-nav {
    position: fixed;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 100%;
    max-width: 800px;
    display: flex;
    background: rgba(255,255,255,0.95);
    backdrop-filter: blur(10px);
    border-top: 1px solid var(--border);
    z-index: 100;
}

.nav-btn {
    flex: 1;
    padding: var(--sp-md) 0;
    border: none;
    background: none;
    font-size: 13px;
    cursor: pointer;
    color: var(--text-muted);
    min-height: 50px;
    position: relative;
}

.nav-btn.active {
    color: var(--primary);
    font-weight: 700;
}

.nav-btn.active::after {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 24px;
    height: 3px;
    background: var(--primary);
    border-radius: 0 0 3px 3px;
}

/* ============ 弹窗 ============ */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0,0,0,0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 200;
}

.modal-box {
    background: #fff;
    border-radius: var(--radius-lg);
    padding: var(--sp-2xl);
    width: 90%;
    max-width: 350px;
    text-align: center;
}

.modal-actions {
    display: flex;
    gap: var(--sp-md);
    justify-content: center;
    margin-top: var(--sp-lg);
}

/* ============ 桌面端优化（>768px） ============ */
@media (min-width: 768px) {
    #app {
        max-width: 800px;
        margin: var(--sp-xl) auto;
        border-radius: var(--radius-xl);
        min-height: calc(100vh - 40px);
    }
    
    .content-page { padding: var(--sp-2xl); }
    .word-english { font-size: 44px; }
    .word-card-baizhan { padding: var(--sp-3xl); }
    .bottom-nav { max-width: 800px; border-radius: 0 0 var(--radius-xl) var(--radius-xl); }
}

/* ============ 手机端优化（<480px）自动全屏适配 ============ */
@media (max-width: 480px) {
    #app {
        max-width: 100%;
        box-shadow: none;
        min-height: 100vh;
        display: flex;
        flex-direction: column;
    }
    
    body {
        min-height: 100vh;
        overflow-y: auto;
        overflow-x: hidden;
    }
    
    header {
        flex-shrink: 0;
        padding: var(--sp-sm) var(--sp-md);
    }
    
    header h1 { font-size: 16px; }
    
    .user-info span { font-size: 12px; }
    .user-info button { padding: var(--sp-xs) var(--sp-md); font-size: 11px; }
    
    main {
        flex: 1;
        overflow-y: auto;
        padding-bottom: 60px;
    }
    
    .bottom-nav {
        flex-shrink: 0;
        max-width: 100%;
    }
    
    .nav-btn {
        padding: var(--sp-sm) 0;
        min-height: 50px;
        font-size: 12px;
    }
    
    .content-page {
        padding: var(--sp-md);
        min-height: 100%;
    }
    
    .auth-container {
        padding: var(--sp-xl) var(--sp-lg);
    }
    
    /* 选择器紧凑 */
    .selector-row { gap: var(--sp-xs); margin-bottom: var(--sp-sm); }
    .selector-row select { font-size: 12px; padding: var(--sp-sm) var(--sp-md); min-width: 80px; }
    
    /* 模式标签紧凑 */
    .mode-tabs { gap: var(--sp-xs); margin-bottom: var(--sp-sm); }
    .mode-btn { font-size: 11px; padding: var(--sp-sm) var(--sp-xs); min-width: 50px; }
    
    /* 进度条紧凑 */
    .stage-bar { gap: 2px; margin-bottom: var(--sp-sm); font-size: 9px; }
    .stage-step { padding: 2px 6px; }
    .memory-stats { font-size: 11px; margin-bottom: var(--sp-xs); gap: var(--sp-sm); }
    .progress-bar { height: 6px; }
    .progress-text { font-size: 10px; margin-bottom: var(--sp-sm); }
    
    /* 单词卡片紧凑 */
    .word-card-baizhan {
        padding: var(--sp-md) var(--sp-sm);
        margin-bottom: var(--sp-sm);
        border-radius: var(--radius-md);
    }
    .word-english { font-size: 26px; margin-bottom: var(--sp-xs); letter-spacing: 1px; }
    .word-phonetic { font-size: 14px; margin-bottom: var(--sp-sm); }
    .speak-btn { padding: var(--sp-sm) var(--sp-lg); min-height: 36px; font-size: 13px; }
    .word-chinese { font-size: 18px; margin-top: var(--sp-sm); }
    .word-meta { margin-top: var(--sp-sm); gap: var(--sp-xs); }
    .pos-badge, .phrase-badge { padding: 2px 10px; font-size: 11px; }
    .example-box { padding: var(--sp-sm); margin-top: var(--sp-sm); }
    .example-text { font-size: 13px; }
    .example-translation { font-size: 12px; }
    
    /* 按钮紧凑 */
    .word-nav { gap: var(--sp-sm); }
    .btn-nav { padding: var(--sp-sm) var(--sp-md); min-height: 36px; font-size: 13px; }
    
    /* 选择题紧凑 */
    .question-card { padding: var(--sp-sm); margin-bottom: var(--sp-sm); }
    .option-btn { padding: var(--sp-sm) var(--sp-md); min-height: 36px; font-size: 13px; margin-bottom: var(--sp-xs); }
    .submit-btn { padding: var(--sp-sm); min-height: 36px; font-size: 14px; margin-top: var(--sp-sm); }
    
    /* 连词成句紧凑 */
    .sentence-word-btn { padding: var(--sp-sm) var(--sp-md); min-height: 32px; font-size: 12px; }
    .sentence-answer { min-height: 36px; padding: var(--sp-sm); }
    .sentence-answer-word { padding: 4px 8px; font-size: 12px; }
    
    /* 阅读紧凑 */
    .reading-passage { padding: var(--sp-sm); font-size: 13px; }
    
    /* 报告紧凑 */
    .report-card { padding: var(--sp-md); }
    .report-card h3 { font-size: 16px; margin-bottom: var(--sp-sm); }
    .report-item { padding: var(--sp-sm) 0; font-size: 12px; }
}

/* ============ 超小屏优化（<360px） ============ */
@media (max-width: 360px) {
    .word-english { font-size: 22px; }
    .word-phonetic { font-size: 12px; }
    .speak-btn { padding: var(--sp-xs) var(--sp-md); min-height: 32px; font-size: 12px; }
    .word-chinese { font-size: 16px; }
    .mode-btn { font-size: 10px; padding: var(--sp-xs); }
    .selector-row select { font-size: 11px; padding: var(--sp-xs); }
    .option-btn { font-size: 12px; padding: var(--sp-xs) var(--sp-sm); min-height: 32px; }
    .submit-btn { font-size: 13px; padding: var(--sp-xs); min-height: 32px; }
    .btn-nav { font-size: 12px; padding: var(--sp-xs) var(--sp-sm); min-height: 32px; }
}
/* ========== 字体加大 ========== */

/* 全局字体 */
body, html {
    font-size: 18px !important;
}

/* 单词英文 */
.word-english {
    font-size: 38px !important;
}

/* 单词中文 */
.word-chinese {
    font-size: 30px !important;
}

/* 音标 */
.word-phonetic {
    font-size: 20px !important;
}

/* 选项按钮 */
.option-btn {
    font-size: 20px !important;
    padding: 14px 20px !important;
}

/* 底部导航 */
.bottom-nav .nav-btn {
    font-size: 20px !important;
}

/* 底部导航标签 */
.bottom-nav .nav-btn .nav-label {
    font-size: 14px !important;
}

/* 顶部标题 */
header h1 {
    font-size: 22px !important;
}

/* 用户信息 */
.user-info span {
    font-size: 16px !important;
}

/* 首页统计数字 */
.stat-num {
    font-size: 32px !important;
}

/* 首页标题 */
.welcome-card h2 {
    font-size: 24px !important;
}

/* 按钮 */
.btn-next, .btn-know, .submit-btn {
    font-size: 16px !important;
    padding: 10px 20px !important;
}

/* 输入框 */
input, select, textarea {
    font-size: 16px !important;
}

/* 例句 */
.example-text {
    font-size: 18px !important;
}
.example-translation {
    font-size: 16px !important;
}

/* 进度文字 */
.progress-text, .memory-stats {
    font-size: 15px !important;
}

/* 提示和反馈 */
#spell-hint, .feedback-text {
    font-size: 18px !important;
}

/* ========== 更大字体 ========== */

body, html {
    font-size: 22px !important;
}

.word-english {
    font-size: 46px !important;
}

.word-chinese {
    font-size: 36px !important;
}

.word-phonetic {
    font-size: 24px !important;
}

.option-btn {
    font-size: 24px !important;
    padding: 16px 24px !important;
}

.bottom-nav .nav-btn {
    font-size: 24px !important;
}

.bottom-nav .nav-btn .nav-label {
    font-size: 16px !important;
}

header h1 {
    font-size: 26px !important;
}

.user-info span {
    font-size: 20px !important;
}

.stat-num {
    font-size: 38px !important;
}

.welcome-card h2 {
    font-size: 28px !important;
}

.btn-next, .btn-know, .submit-btn {
    font-size: 20px !important;
    padding: 14px 28px !important;
}

input, select, textarea {
    font-size: 20px !important;
}

.example-text {
    font-size: 22px !important;
}
.example-translation {
    font-size: 18px !important;
}

.progress-text, .memory-stats {
    font-size: 18px !important;
}

#spell-hint, .feedback-text {
    font-size: 22px !important;
}

/* 首页欢迎文字 */
#welcome-msg {
    font-size: 22px !important;
}

/* 首页提醒 */
#reminder-text {
    font-size: 20px !important;
}

/* 错题提醒 */
#mistake-reminder p {
    font-size: 20px !important;
}

/* 继续学习 */
.continue-card p {
    font-size: 20px !important;
}

/* ========== 单词模式字体加大 ========== */

/* 模式标签（浏览、遮罩、填空、拼写） */
.mode-btn {
    font-size: 22px !important;
    padding: 12px 20px !important;
}

/* 阶段步骤文字（浏览→遮罩→填空→拼写） */
.stage-step {
    font-size: 18px !important;
}

.stage-arrow {
    font-size: 20px !important;
}

/* 浏览模式 - 英文 */
#browse-english {
    font-size: 48px !important;
}

/* 浏览模式 - 中文 */
#browse-chinese {
    font-size: 36px !important;
}

/* 浏览模式 - 音标 */
#browse-phonetic {
    font-size: 24px !important;
}

/* 浏览模式 - 例句 */
#browse-example {
    font-size: 22px !important;
}

#browse-example-cn {
    font-size: 18px !important;
}

/* 遮罩模式 - 英文 */
#mask-english {
    font-size: 48px !important;
}

/* 遮罩模式 - 中文 */
#mask-chinese {
    font-size: 36px !important;
}

/* 遮罩模式 - 音标 */
#mask-phonetic {
    font-size: 24px !important;
}

/* 遮罩模式 - 例句 */
#mask-example {
    font-size: 22px !important;
}

#mask-example-cn {
    font-size: 18px !important;
}

/* 填空模式 - 题目 */
#fill-question {
    font-size: 22px !important;
}

#fill-example-cn {
    font-size: 18px !important;
}

#fill-word-chinese {
    font-size: 30px !important;
}

/* 拼写模式 - 中文提示 */
#spell-chinese {
    font-size: 38px !important;
}

#spell-hint {
    font-size: 22px !important;
}

/* 拼写输入框 */
#word-spell-input {
    font-size: 24px !important;
    padding: 12px 16px !important;
}

/* 模式内按钮 */
.speak-btn {
    font-size: 18px !important;
    padding: 10px 20px !important;
}

.example-speak-btn {
    font-size: 16px !important;
}

/* 导航按钮（上一个/下一个） */
.btn-nav {
    font-size: 18px !important;
    padding: 12px 24px !important;
}

/* 提交按钮 */
.submit-btn {
    font-size: 20px !important;
    padding: 14px 28px !important;
}
/* 手机端我的页面滚动修复 */
@media (max-width: 768px) {
    #progress-page {
        overflow-y: auto !important;
        -webkit-overflow-scrolling: touch !important;
        min-height: 100vh !important;
        padding-bottom: 100px !important;
    }
}

/* ============ 手机端隐藏浏览模式的导航按钮 ============ */
@media (max-width: 768px) {
    #mode-browse .word-nav {
        display: none !important;
    }
}

/* ============ 手机端浏览模式单词卡片优化 ============ */
@media (max-width: 768px) {
    /* 单词卡片容器 - 增加上下内边距 */
    #mode-browse .word-card-baizhan {
        padding: 48px 20px !important;
        min-height: 320px !important;
        background: linear-gradient(145deg, #ffffff 0%, #f8faff 100%) !important;
        border-radius: 24px !important;
        box-shadow: 0 8px 32px rgba(74, 144, 217, 0.12) !important;
        border: none !important;
        display: flex !important;
        flex-direction: column !important;
        justify-content: center !important;
        align-items: center !important;
    }
    
    /* 英文单词 - 加大字号 */
    #mode-browse .word-english {
        font-size: 42px !important;
        font-weight: 800 !important;
        color: #1a1a2e !important;
        margin-bottom: 8px !important;
        letter-spacing: 1px !important;
    }
    
    /* 音标 */
    #mode-browse .word-phonetic {
        font-size: 18px !important;
        color: #94a3b8 !important;
        margin-bottom: 16px !important;
    }
    
    /* 中文释义 */
    #mode-browse .word-chinese {
        font-size: 26px !important;
        font-weight: 600 !important;
        color: #475569 !important;
        margin-top: 12px !important;
    }
    
    /* 词性标签 */
    #mode-browse .word-meta {
        margin-top: 12px !important;
    }
    
    #mode-browse .pos-badge {
        padding: 4px 16px !important;
        font-size: 13px !important;
        background: #eef2ff !important;
        color: #4f46e5 !important;
        border-radius: 20px !important;
    }
    
    /* 发音按钮 - 加大 */
    #mode-browse .speak-btn {
        padding: 10px 28px !important;
        font-size: 16px !important;
        border-radius: 30px !important;
        background: linear-gradient(135deg, #6366f1 0%, #8b5cf6 100%) !important;
        color: white !important;
        box-shadow: 0 4px 16px rgba(99, 102, 241, 0.35) !important;
        border: none !important;
        margin: 8px 0 !important;
    }
    
    #mode-browse .speak-btn:hover {
        transform: scale(1.05) !important;
        box-shadow: 0 6px 24px rgba(99, 102, 241, 0.45) !important;
    }
    
    #mode-browse .speak-btn svg {
        stroke: white !important;
    }
    
    /* 进度条加粗 */
    #mode-browse .progress-bar {
        height: 6px !important;
        border-radius: 6px !important;
        margin: 12px 0 4px !important;
    }
    
    #mode-browse .progress-text {
        font-size: 14px !important;
        color: #94a3b8 !important;
        font-weight: 500 !important;
    }
    
    /* 记忆统计 */
    #mode-browse .memory-stats {
        font-size: 14px !important;
        margin-bottom: 10px !important;
    }
}

/* ============ 隐藏训练模块的提交按钮 ============ */
#listening-stage .submit-btn,
#en2cn-stage .submit-btn,
#cn2en-stage .submit-btn {
    display: none !important;
}

/* 电脑端隐藏浏览模式例句 */
@media (min-width: 769px) {
    #mode-browse .example-box {
        display: none !important;
    }
}

/* ============ 虚拟键盘加大 ============ */
.vk-key {
    font-size: 24px !important;
    height: 56px !important;
    line-height: 56px !important;
    min-width: 48px !important;
    border-radius: 10px !important;
    margin: 3px !important;
    box-shadow: 0 2px 8px rgba(0,0,0,0.08) !important;
    transition: all 0.15s ease !important;
    user-select: none !important;
    -webkit-tap-highlight-color: transparent !important;
}

.vk-key:active {
    transform: scale(0.92) !important;
    background: #e5e7eb !important;
}

/* 功能键（退格、清空、确认）单独加大 */
.vk-key[data-key="⌫"],
.vk-key[data-key="clear"],
.vk-key[data-key="✓"] {
    font-size: 18px !important;
    min-width: 64px !important;
    padding: 0 16px !important;
}

/* 键盘容器调整 */
#vk-simple {
    padding: 14px 16px 16px !important;
    max-width: 480px !important;
    border-radius: 16px !important;
}

/* ============ 虚拟键盘适中 ============ */
.vk-key {
    font-size: 20px !important;
    height: 48px !important;
    line-height: 48px !important;
    min-width: 40px !important;
    border-radius: 8px !important;
    margin: 2px !important;
    box-shadow: 0 1px 4px rgba(0,0,0,0.06) !important;
    user-select: none !important;
    -webkit-tap-highlight-color: transparent !important;
}

.vk-key:active {
    transform: scale(0.92) !important;
    background: #e5e7eb !important;
}

.vk-key[data-key="⌫"],
.vk-key[data-key="clear"],
.vk-key[data-key="✓"] {
    font-size: 16px !important;
    min-width: 54px !important;
    padding: 0 12px !important;
}

#vk-simple {
    padding: 10px 12px 12px !important;
    max-width: 460px !important;
    border-radius: 14px !important;
}

/* ============ 虚拟键盘适中偏小 ============ */
.vk-key {
    font-size: 18px !important;
    height: 42px !important;
    line-height: 42px !important;
    min-width: 36px !important;
    border-radius: 6px !important;
    margin: 2px !important;
    box-shadow: 0 1px 3px rgba(0,0,0,0.05) !important;
    user-select: none !important;
    -webkit-tap-highlight-color: transparent !important;
}

.vk-key:active {
    transform: scale(0.92) !important;
    background: #e5e7eb !important;
}

.vk-key[data-key="⌫"],
.vk-key[data-key="clear"],
.vk-key[data-key="✓"] {
    font-size: 15px !important;
    min-width: 48px !important;
    padding: 0 10px !important;
}

#vk-simple {
    padding: 8px 10px 10px !important;
    max-width: 440px !important;
    border-radius: 12px !important;
}

/* ============ 虚拟键盘小号 ============ */
.vk-key {
    font-size: 16px !important;
    height: 38px !important;
    line-height: 38px !important;
    min-width: 32px !important;
    border-radius: 6px !important;
    margin: 2px !important;
    box-shadow: none !important;
    user-select: none !important;
    -webkit-tap-highlight-color: transparent !important;
}

.vk-key:active {
    transform: scale(0.92) !important;
    background: #e5e7eb !important;
}

.vk-key[data-key="⌫"],
.vk-key[data-key="clear"],
.vk-key[data-key="✓"] {
    font-size: 14px !important;
    min-width: 44px !important;
    padding: 0 8px !important;
}

#vk-simple {
    padding: 6px 8px 8px !important;
    max-width: 420px !important;
    border-radius: 10px !important;
    border-width: 1px !important;
}

/* ============ 单词卡片背景加深 ============ */
#mode-browse .word-card-baizhan,
#mode-mask .word-card-baizhan,
#mode-spell .word-card-baizhan {
    background: #f0f4ff !important;
    border: 2px solid #d6e4ff !important;
    border-radius: 20px !important;
    box-shadow: 0 4px 16px rgba(74, 144, 217, 0.15) !important;
}

/* ============ 单词卡片背景 - 柔和不刺眼 ============ */
#mode-browse .word-card-baizhan,
#mode-mask .word-card-baizhan,
#mode-spell .word-card-baizhan {
    background: #f5f0eb !important;
    border: 2px solid #e8ddd0 !important;
    border-radius: 20px !important;
    box-shadow: 0 4px 16px rgba(180, 160, 140, 0.12) !important;
}

/* ============ 单词卡片背景 - 护眼绿 ============ */
#mode-browse .word-card-baizhan,
#mode-mask .word-card-baizhan,
#mode-spell .word-card-baizhan {
    background: #e8f5e9 !important;
    border: 2px solid #c8e6c9 !important;
    border-radius: 20px !important;
    box-shadow: 0 4px 16px rgba(76, 175, 80, 0.10) !important;
}

/* ============ 浏览和遮罩模块字体加大 ============ */
#mode-browse .word-english,
#mode-mask .word-english {
    font-size: 48px !important;
    font-weight: 700 !important;
}

#mode-browse .word-chinese,
#mode-mask .word-chinese {
    font-size: 28px !important;
    font-weight: 600 !important;
}

#mode-browse .word-phonetic,
#mode-mask .word-phonetic {
    font-size: 20px !important;
}

#mode-browse .pos-badge,
#mode-mask .pos-badge {
    font-size: 16px !important;
    padding: 4px 16px !important;
}

/* ============ 浏览和遮罩模块字体加大 ============ */
#mode-browse .word-english,
#mode-mask .word-english {
    font-size: 56px !important;
    font-weight: 700 !important;
}

#mode-browse .word-chinese,
#mode-mask .word-chinese {
    font-size: 34px !important;
    font-weight: 600 !important;
}

#mode-browse .word-phonetic,
#mode-mask .word-phonetic {
    font-size: 24px !important;
}

#mode-browse .pos-badge,
#mode-mask .pos-badge {
    font-size: 18px !important;
    padding: 6px 20px !important;
}

/* 滑动提示 */
.swipe-hint {
    display: none;
    justify-content: space-between;
    padding: 10px 20px;
    margin-top: 6px;
    font-size: 14px;
    color: #94a3b8;
}
@media (max-width: 768px) {
    .swipe-hint { display: flex; }
}


/* ============ 整体等比缩放（按屏幕宽度）============ */
/* 以 390px 为基准，屏幕越宽放大，越窄缩小 */
@media (max-width: 768px) {
    #app {
        zoom: calc(100vw / 390);
    }
}

/* ============ 手机端一屏显示（我的页面除外）============ */
@media (max-width: 768px) {
    /* 首页、单词、训练：固定高度，不滚动 */
    #home-page,
    #learn-page,
    #practice-page {
        min-height: calc(100vh - 120px);  /* 至少一屏高，内容多可滚动 */
        overflow-y: auto;  /* 内容超了还是允许滚，但尽量一屏 */
        padding-bottom: 8px;
    }
    
    /* 单词卡片自适应压缩 */
    #learn-page .word-card-baizhan {
        min-height: auto;
        padding: 20px 16px;
    }
    
    /* 单词字号自适应，保证一屏 */
    #mode-browse .word-english,
    #mode-mask .word-english {
        font-size: clamp(26px, 8vw, 40px);
    }
    
    #mode-browse .word-chinese,
    #mode-mask .word-chinese {
        font-size: clamp(18px, 5vw, 26px);
    }
    
    /* 进度条、统计压缩 */
    #learn-page .memory-stats {
        margin: 4px 0;
        font-size: 12px;
    }
    
    #learn-page .progress-text {
        margin-bottom: 8px;
    }
    
    /* 训练题目区域自适应 */
    #practice-page .question-card {
        padding: 16px;
    }
    
    #practice-page .option-btn {
        padding: 8px 10px;
        font-size: 14px;
    }
    
    /* 我的页面：保持可滚动，不限高 */
    #progress-page {
        height: auto;
        overflow-y: auto;
    }
}

/* ============ 手机端整体字体减小 ============ */
@media (max-width: 768px) {
    /* 全局字体缩小 */
    body {
        font-size: 14px;
    }
    
    /* 单词英文 */
    #mode-browse .word-english,
    #mode-mask .word-english {
        font-size: 32px !important;
    }
    
    /* 中文 */
    #mode-browse .word-chinese,
    #mode-mask .word-chinese {
        font-size: 22px !important;
    }
    
    /* 音标 */
    #mode-browse .word-phonetic,
    #mode-mask .word-phonetic {
        font-size: 15px !important;
    }
    
    /* 拼写中文提示 */
    #spell-chinese {
        font-size: 22px !important;
    }
    
    /* 按钮 */
    .speak-btn {
        font-size: 13px !important;
        padding: 6px 16px !important;
    }
    
    .btn-nav {
        font-size: 13px !important;
        padding: 8px 16px !important;
    }
    
    /* 模式切换按钮 */
    .mode-tabs .mode-btn {
        font-size: 13px !important;
        padding: 8px 6px !important;
    }
    
    /* 选择器 */
    .selector-row select {
        font-size: 12px !important;
        padding: 7px 8px !important;
    }
    
    /* 进度文字 */
    .progress-text {
        font-size: 12px !important;
    }
    
    /* 记忆统计 */
    .memory-stats {
        font-size: 12px !important;
    }
    
    /* 训练题目 */
    .question-card h3 {
        font-size: 16px !important;
    }
    
    .option-btn {
        font-size: 14px !important;
        padding: 8px 10px !important;
    }
    
    /* 虚拟键盘 */
    .vk-key {
        font-size: 15px !important;
        height: 38px !important;
        line-height: 38px !important;
        min-width: 30px !important;
    }
    
    /* 顶部标题 */
    header h1 {
        font-size: 16px !important;
    }
    
    /* 滑动提示 */
    .swipe-hint {
        font-size: 12px !important;
    }
}

/* ============ 手机端字体调大（覆盖上一条）============ */
@media (max-width: 768px) {
    body {
        font-size: 15px;
    }
    
    /* 单词英文 */
    #mode-browse .word-english,
    #mode-mask .word-english {
        font-size: 40px !important;
    }
    
    /* 中文 */
    #mode-browse .word-chinese,
    #mode-mask .word-chinese {
        font-size: 26px !important;
    }
    
    /* 音标 */
    #mode-browse .word-phonetic,
    #mode-mask .word-phonetic {
        font-size: 17px !important;
    }
    
    /* 拼写中文提示 */
    #spell-chinese {
        font-size: 26px !important;
    }
    
    /* 按钮 */
    .speak-btn {
        font-size: 15px !important;
        padding: 8px 20px !important;
    }
    
    .btn-nav {
        font-size: 15px !important;
        padding: 10px 20px !important;
    }
    
    /* 模式切换按钮 */
    .mode-tabs .mode-btn {
        font-size: 15px !important;
        padding: 10px 8px !important;
    }
    
    /* 选择器 */
    .selector-row select {
        font-size: 14px !important;
        padding: 9px 10px !important;
    }
    
    /* 进度文字 */
    .progress-text {
        font-size: 14px !important;
    }
    
    /* 记忆统计 */
    .memory-stats {
        font-size: 14px !important;
    }
    
    /* 训练题目 */
    .question-card h3 {
        font-size: 18px !important;
    }
    
    .option-btn {
        font-size: 16px !important;
        padding: 10px 12px !important;
    }
    
    /* 虚拟键盘 */
    .vk-key {
        font-size: 17px !important;
        height: 42px !important;
        line-height: 42px !important;
        min-width: 34px !important;
    }
    
    /* 顶部标题 */
    header h1 {
        font-size: 18px !important;
    }
    
    /* 滑动提示 */
    .swipe-hint {
        font-size: 13px !important;
    }
}

/* ============ 微信端与浏览器统一 ============ */
html, body {
    -webkit-text-size-adjust: 100% !important;
    text-size-adjust: 100% !important;
}

* {
    -webkit-text-size-adjust: none !important;
}

/* ============ 手机端首页字体缩小 ============ */
@media (max-width: 768px) {
    /* 欢迎卡片 */
    #home-page .welcome-card h2 {
        font-size: 20px !important;
    }
    #home-page .welcome-card p {
        font-size: 14px !important;
    }
    #home-page .welcome-card button {
        font-size: 14px !important;
    }
    
    /* 今日学习 */
    #home-page .reminder-card h3 {
        font-size: 14px !important;
    }
    #home-page .reminder-card p {
        font-size: 13px !important;
    }
    
    /* 错题提醒 */
    #home-page .mistake-reminder p {
        font-size: 13px !important;
    }
    #home-page .mistake-reminder .btn-next {
        font-size: 13px !important;
    }
    
    /* 继续学习 */
    #home-page .continue-card p {
        font-size: 13px !important;
    }
    #home-page .continue-card .btn-know {
        font-size: 13px !important;
    }
    
    /* 统计卡片 */
    #home-page .stat-card .stat-num {
        font-size: 24px !important;
    }
    #home-page .stat-card .stat-label {
        font-size: 12px !important;
    }
}

/* ============ 手机端首页字体适当加大（覆盖上一条）============ */
@media (max-width: 768px) {
    #home-page .welcome-card h2 {
        font-size: 24px !important;
    }
    #home-page .welcome-card p {
        font-size: 16px !important;
    }
    #home-page .welcome-card button {
        font-size: 16px !important;
    }
    
    #home-page .reminder-card h3 {
        font-size: 16px !important;
    }
    #home-page .reminder-card p {
        font-size: 15px !important;
    }
    
    #home-page .mistake-reminder p {
        font-size: 15px !important;
    }
    #home-page .mistake-reminder .btn-next {
        font-size: 15px !important;
    }
    
    #home-page .continue-card p {
        font-size: 15px !important;
    }
    #home-page .continue-card .btn-know {
        font-size: 15px !important;
    }
    
    #home-page .stat-card .stat-num {
        font-size: 28px !important;
    }
    #home-page .stat-card .stat-label {
        font-size: 14px !important;
    }
}

/* ============ 手机端训练选项字体加大 ============ */
@media (max-width: 768px) {
    /* 题目选项按钮 */
    #practice-page .option-btn {
        font-size: 18px !important;
        padding: 14px 12px !important;
    }
    
    /* 题目文字 */
    #practice-page .question-card h3 {
        font-size: 20px !important;
    }
    
    /* 播放发音按钮 */
    #practice-page .speak-btn {
        font-size: 16px !important;
        padding: 10px 20px !important;
    }
    
    /* 反馈文字 */
    #practice-page #listening-feedback,
    #practice-page #en2cn-feedback,
    #practice-page #cn2en-feedback {
        font-size: 18px !important;
    }
    
    /* 进度文字 */
    #practice-page #listening-progress,
    #practice-page #en2cn-progress,
    #practice-page #cn2en-progress {
        font-size: 16px !important;
    }
    
    /* 提交按钮 */
    #practice-page .submit-btn {
        font-size: 18px !important;
        padding: 14px 32px !important;
    }
    
    /* 听音选项 */
    #listening-options .option-btn,
    #en2cn-options .option-btn,
    #cn2en-options .option-btn {
        font-size: 18px !important;
        padding: 14px 12px !important;
    }
}

/* ============ 手机端训练选项字体再加大（覆盖上一条）============ */
@media (max-width: 768px) {
    #practice-page .option-btn,
    #listening-options .option-btn,
    #en2cn-options .option-btn,
    #cn2en-options .option-btn {
        font-size: 22px !important;
        padding: 18px 14px !important;
    }
    
    #practice-page .question-card h3 {
        font-size: 24px !important;
    }
    
    #practice-page .speak-btn {
        font-size: 20px !important;
        padding: 12px 24px !important;
    }
    
    #practice-page #listening-feedback,
    #practice-page #en2cn-feedback,
    #practice-page #cn2en-feedback {
        font-size: 22px !important;
    }
    
    #practice-page #listening-progress,
    #practice-page #en2cn-progress,
    #practice-page #cn2en-progress {
        font-size: 18px !important;
    }
    
    #practice-page .submit-btn {
        font-size: 22px !important;
        padding: 16px 36px !important;
    }
}


/* ============ 微信端首页字体加大 ============ */
.wechat-env #home-page .welcome-card h2 {
    font-size: 28px !important;
}
.wechat-env #home-page .welcome-card p {
    font-size: 18px !important;
}
.wechat-env #home-page .welcome-card button {
    font-size: 18px !important;
}
.wechat-env #home-page .reminder-card h3 {
    font-size: 18px !important;
}
.wechat-env #home-page .reminder-card p {
    font-size: 17px !important;
}
.wechat-env #home-page .mistake-reminder p {
    font-size: 17px !important;
}
.wechat-env #home-page .mistake-reminder .btn-next {
    font-size: 17px !important;
}
.wechat-env #home-page .continue-card p {
    font-size: 17px !important;
}
.wechat-env #home-page .continue-card .btn-know {
    font-size: 17px !important;
}
.wechat-env #home-page .stat-card .stat-num {
    font-size: 32px !important;
}
.wechat-env #home-page .stat-card .stat-label {
    font-size: 15px !important;
}

/* ============ 微信端浏览模式字体加大 ============ */
.wechat-env #mode-browse .word-english {
    font-size: 56px !important;
}
.wechat-env #mode-browse .word-phonetic {
    font-size: 24px !important;
}
.wechat-env #mode-browse .word-chinese {
    font-size: 36px !important;
}
.wechat-env #mode-browse .pos-badge {
    font-size: 18px !important;
}
.wechat-env #mode-browse .speak-btn {
    font-size: 18px !important;
}
.wechat-env #mode-browse .progress-text {
    font-size: 16px !important;
}
.wechat-env #mode-browse .memory-stats {
    font-size: 16px !important;
}

/* ============ 微信端遮罩模式字体加大 ============ */
.wechat-env #mode-mask .word-english {
    font-size: 56px !important;
}
.wechat-env #mode-mask .word-phonetic {
    font-size: 24px !important;
}
.wechat-env #mode-mask .word-chinese {
    font-size: 36px !important;
}
.wechat-env #mode-mask .pos-badge {
    font-size: 18px !important;
}
.wechat-env #mode-mask .speak-btn {
    font-size: 18px !important;
}
.wechat-env #mode-mask .btn-nav {
    font-size: 18px !important;
}
.wechat-env #mode-mask #mask-show-btn {
    font-size: 18px !important;
}
.wechat-env #mode-mask .progress-text {
    font-size: 16px !important;
}
.wechat-env #mode-mask .memory-stats {
    font-size: 16px !important;
}

/* ============ 微信端拼写模式题目字体加大 ============ */
.wechat-env #mode-spell #spell-chinese {
    font-size: 36px !important;
}
.wechat-env #mode-spell .speak-btn {
    font-size: 18px !important;
}
.wechat-env #mode-spell #spell-hint {
    font-size: 22px !important;
}
.wechat-env #mode-spell #word-spell-input {
    font-size: 22px !important;
}
.wechat-env #mode-spell .submit-btn {
    font-size: 18px !important;
}
.wechat-env #mode-spell .progress-text {
    font-size: 16px !important;
}
.wechat-env #mode-spell .memory-stats {
    font-size: 16px !important;
}

/* ============ 微信端训练模块字体加大 ============ */
.wechat-env #practice-page .question-card h3 {
    font-size: 26px !important;
}
.wechat-env #practice-page .speak-btn {
    font-size: 20px !important;
    padding: 12px 24px !important;
}
.wechat-env #practice-page .option-btn,
.wechat-env #listening-options .option-btn,
.wechat-env #en2cn-options .option-btn,
.wechat-env #cn2en-options .option-btn {
    font-size: 22px !important;
    padding: 16px 12px !important;
}
.wechat-env #practice-page .submit-btn {
    font-size: 20px !important;
    padding: 14px 32px !important;
}
.wechat-env #practice-page #listening-feedback,
.wechat-env #practice-page #en2cn-feedback,
.wechat-env #practice-page #cn2en-feedback {
    font-size: 22px !important;
}
.wechat-env #practice-page #listening-progress,
.wechat-env #practice-page #en2cn-progress,
.wechat-env #practice-page #cn2en-progress {
    font-size: 18px !important;
}
.wechat-env #practice-page .report-card h3 {
    font-size: 24px !important;
}
.wechat-env #practice-page .report-item {
    font-size: 20px !important;
}

/* ============ 微信端训练模块字体再加大 ============ */
.wechat-env #practice-page .question-card h3 {
    font-size: 30px !important;
}
.wechat-env #practice-page .speak-btn {
    font-size: 24px !important;
    padding: 14px 28px !important;
}
.wechat-env #practice-page .option-btn,
.wechat-env #listening-options .option-btn,
.wechat-env #en2cn-options .option-btn,
.wechat-env #cn2en-options .option-btn {
    font-size: 26px !important;
    padding: 20px 14px !important;
}
.wechat-env #practice-page .submit-btn {
    font-size: 24px !important;
    padding: 16px 36px !important;
}
.wechat-env #practice-page #listening-feedback,
.wechat-env #practice-page #en2cn-feedback,
.wechat-env #practice-page #cn2en-feedback {
    font-size: 26px !important;
}
.wechat-env #practice-page #listening-progress,
.wechat-env #practice-page #en2cn-progress,
.wechat-env #practice-page #cn2en-progress {
    font-size: 20px !important;
}
.wechat-env #practice-page .report-card h3 {
    font-size: 28px !important;
}
.wechat-env #practice-page .report-item {
    font-size: 24px !important;
}