/**
 * 国象英语 模块样式（WEB 端）
 *
 * 移植自小程序 packages/training/pages/english/english.wxss（2026-09-27）
 * 主题：紫梅色系（小程序 plum 渐变观感）--en-brand #9b59b6 → --en-brand-end #bb8fce
 * 颜色：跟随全局 CSS 变量 --bg-card / --bg-secondary / --text-primary / --border-color
 *
 * 响应式断点：
 *   ≥768px   选项 2×2 网格
 *   ≤767px   选项单列、卡片内边距收紧
 */

/* ============== 基础 ============== */
.eng-module {
    max-width: 780px;
    margin: 0 auto;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'PingFang SC', 'Microsoft YaHei', sans-serif;
    color: var(--text-primary, #333);
    -webkit-tap-highlight-color: transparent;
    /* 模块级主题色（复刻小程序紫梅配色） */
    --en-brand: #9b59b6;
    --en-brand-end: #bb8fce;
    --en-wrong: #e53e3e;
    --en-gold: #f4d03f;
    --en-ok-bg: rgba(103, 194, 58, 0.14);
    --en-ok-border: #67c23a;
    --en-no-bg: rgba(229, 62, 62, 0.12);
    --en-no-border: #e53e3e;
    --en-surface: rgba(155, 89, 182, 0.08);
    --en-surface-active: rgba(155, 89, 182, 0.16);
}
.eng-module * {
    box-sizing: border-box;
    -webkit-tap-highlight-color: transparent;
}
.eng-module button {
    font-family: inherit;
    cursor: pointer;
}
.eng-module [hidden] { display: none !important; }
/* 兜底：弹窗 hidden 属性兜底（防止 display:flex 覆盖默认 hidden） */
.eng-modal[hidden] { display: none !important; }
.eng-feedback[hidden] { display: none !important; }

/* ============== 顶部品牌栏（对齐 c960/dp 范式） ============== */
.eng-brand {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    background: linear-gradient(135deg, var(--en-brand) 0%, var(--en-brand-end) 100%);
    color: #fff;
    border-radius: 10px;
    padding: 14px 20px;
    margin-bottom: 14px;
    box-shadow: 0 4px 14px rgba(155, 89, 182, 0.28);
}
.eng-brand-left {
    display: flex;
    flex-direction: column;
    gap: 3px;
    min-width: 0;
}
.eng-brand-title {
    margin: 0;
    font-size: 20px;
    font-weight: 700;
    letter-spacing: 0.5px;
}
.eng-brand-sub {
    font-size: 13px;
    opacity: 0.92;
}
.eng-intro-link {
    background: rgba(255, 255, 255, 0.18);
    border: 1px solid rgba(255, 255, 255, 0.55);
    border-radius: 999px;
    color: #fff;
    font-size: 13px;
    padding: 6px 14px;
    white-space: nowrap;
    transition: background 0.2s;
}
.eng-intro-link:hover {
    background: rgba(255, 255, 255, 0.32);
}

/* ============== 主卡片 ============== */
.eng-card {
    background: var(--bg-card, #fff);
    border: 1px solid var(--border-color, #e0e0e0);
    border-radius: 14px;
    box-shadow: 0 4px 18px var(--shadow, rgba(0, 0, 0, 0.06));
    padding: 20px;
}

/* ============== 开始页 ============== */
.eng-mode-tabs {
    display: flex;
    justify-content: center;
    gap: 14px;
    padding: 4px 0 16px;
}
.eng-mode-tab {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    flex: 1;
    max-width: 200px;
    background: var(--en-surface);
    border: 2px solid rgba(155, 89, 182, 0.35);
    border-radius: 999px;
    padding: 11px 20px;
    font-size: 15px;
    font-weight: 700;
    color: var(--text-primary, #333);
    transition: all 0.25s;
}
.eng-mode-tab.active {
    background: var(--bg-card, #fff);
    border-color: var(--en-brand);
    color: var(--en-brand);
    box-shadow: 0 3px 12px rgba(155, 89, 182, 0.25);
    transform: scale(1.03);
}

.eng-section-title {
    display: inline-block;
    background: linear-gradient(135deg, var(--en-brand), #8e44ad);
    color: #fff;
    font-size: 14px;
    border-radius: 999px;
    padding: 6px 20px;
    margin: 4px 0 12px;
    box-shadow: 0 3px 8px rgba(155, 89, 182, 0.3);
}

.eng-diff-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 10px;
    margin-bottom: 16px;
}
.eng-diff-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 3px;
    background: var(--en-surface);
    border: 2px solid var(--border-color, #e0e0e0);
    border-radius: 12px;
    padding: 14px 10px;
    color: var(--text-primary, #333);
    transition: all 0.25s;
}
.eng-diff-btn i {
    font-style: normal;
    font-size: 26px;
    line-height: 1.2;
}
.eng-diff-btn b {
    font-size: 15px;
}
.eng-diff-btn small {
    font-size: 12px;
    color: var(--text-secondary, #666);
}
.eng-diff-btn.active {
    background: var(--en-surface-active);
    border-color: var(--en-brand);
}
.eng-diff-btn.active i,
.eng-diff-btn.active b {
    color: var(--en-brand);
}

.eng-dir-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
    margin-bottom: 6px;
}
.eng-dir-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 3px;
    background: var(--en-surface);
    border: 2px solid var(--border-color, #e0e0e0);
    border-radius: 12px;
    padding: 12px 14px;
    color: var(--text-primary, #333);
    transition: all 0.25s;
}
.eng-dir-btn b { font-size: 15px; }
.eng-dir-btn small {
    font-size: 12px;
    color: var(--text-secondary, #666);
}
.eng-dir-btn.active {
    background: var(--en-surface-active);
    border-color: var(--en-brand);
}
.eng-dir-btn.active b { color: var(--en-brand); }

.eng-start-btn {
    display: block;
    width: 100%;
    background: linear-gradient(135deg, var(--en-brand), var(--en-brand-end));
    color: #fff;
    font-size: 16px;
    font-weight: 700;
    border: none;
    border-radius: 999px;
    padding: 13px 24px;
    margin: 16px 0 10px;
    box-shadow: 0 4px 14px rgba(155, 89, 182, 0.35);
    transition: transform 0.15s, box-shadow 0.2s;
}
.eng-start-btn:hover {
    box-shadow: 0 6px 18px rgba(155, 89, 182, 0.45);
}
.eng-start-btn:active {
    transform: scale(0.98);
}

.eng-info-line {
    text-align: center;
    font-size: 13px;
    color: var(--text-secondary, #666);
    padding-bottom: 4px;
}

/* 学习模式配置 */
.eng-learn-info {
    background: var(--en-surface);
    border-radius: 12px;
    padding: 12px 16px;
    font-size: 13px;
    line-height: 1.6;
    color: var(--text-secondary, #666);
    margin-bottom: 14px;
}
.eng-learn-diff-list {
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin-bottom: 6px;
}
.eng-learn-diff {
    display: flex;
    align-items: center;
    gap: 14px;
    background: var(--en-surface);
    border: 2px solid var(--border-color, #e0e0e0);
    border-radius: 12px;
    padding: 13px 16px;
    text-align: left;
    color: var(--text-primary, #333);
    transition: all 0.25s;
}
.eng-learn-diff i {
    font-style: normal;
    font-size: 22px;
}
.eng-learn-diff b {
    flex: 1;
    font-size: 14px;
    font-weight: 700;
}
.eng-learn-diff .eng-learn-count {
    font-size: 12px;
    color: var(--text-secondary, #666);
}
.eng-learn-diff.active {
    background: var(--en-surface-active);
    border-color: var(--en-brand);
}
.eng-learn-diff.active i,
.eng-learn-diff.active b {
    color: var(--en-brand);
}

/* ============== 挑战答题页 ============== */
.eng-status-bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: var(--en-surface);
    border-radius: 12px;
    padding: 10px 20px;
    margin-bottom: 10px;
}
.eng-status-item { text-align: center; }
.eng-status-label {
    display: block;
    font-size: 12px;
    color: var(--text-secondary, #666);
    margin-bottom: 2px;
}
.eng-status-value {
    font-size: 17px;
    font-weight: 700;
}
.eng-status-value.eng-score { color: var(--en-brand); }
.eng-combo {
    background: linear-gradient(135deg, var(--en-brand), var(--en-brand-end));
    border-radius: 999px;
    padding: 5px 14px;
}
.eng-combo-text {
    color: #fff;
    font-size: 13px;
    font-weight: 700;
}

.eng-progress {
    height: 5px;
    background: var(--en-surface);
    border-radius: 4px;
    margin-bottom: 14px;
    overflow: hidden;
}
.eng-progress-fill {
    height: 100%;
    width: 0;
    background: linear-gradient(90deg, var(--en-brand-end), var(--en-brand));
    border-radius: 4px;
    transition: width 0.3s;
}

.eng-question-card {
    background: var(--bg-secondary, #fff);
    border: 1px solid var(--border-color, #e0e0e0);
    border-radius: 14px;
    padding: 22px 24px;
}
.eng-question-type {
    text-align: center;
    font-size: 13px;
    color: var(--text-secondary, #666);
    margin-bottom: 12px;
}
.eng-question-text {
    text-align: center;
    font-size: 26px;
    font-weight: 700;
    color: var(--text-primary, #333);
    margin-bottom: 20px;
    line-height: 1.4;
    word-break: break-word;
}
.eng-options {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
}
.eng-option {
    display: flex;
    align-items: center;
    gap: 10px;
    background: var(--bg-card, #fff);
    border: 2px solid var(--border-color, #e0e0e0);
    border-radius: 12px;
    padding: 13px 14px;
    text-align: left;
    color: var(--text-primary, #333);
    transition: border-color 0.2s, background 0.2s;
}
.eng-option:hover {
    border-color: rgba(155, 89, 182, 0.55);
}
.eng-option-label {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: var(--en-brand);
    color: #fff;
    font-size: 14px;
    font-weight: 700;
}
.eng-option-text {
    flex: 1;
    font-size: 15px;
    line-height: 1.4;
    word-break: break-word;
}
.eng-option.correct {
    background: var(--en-ok-bg);
    border-color: var(--en-ok-border);
}
.eng-option.correct .eng-option-label {
    background: var(--en-ok-border);
}
.eng-option.wrong {
    background: var(--en-no-bg);
    border-color: var(--en-no-border);
}
.eng-option.wrong .eng-option-label {
    background: var(--en-no-border);
}

/* 居中反馈浮层（对齐小程序 fixed 居中 toast） */
.eng-feedback {
    position: fixed;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    z-index: 1200;
    display: flex;
    align-items: center;
    gap: 10px;
    border-radius: 12px;
    padding: 16px 34px;
    animation: engFadeIn 0.3s;
    pointer-events: none;
}
.eng-feedback-correct { background: var(--en-brand); }
.eng-feedback-wrong { background: var(--en-wrong); }
.eng-fb-icon {
    color: #fff;
    font-size: 15px;
    font-weight: 700;
}
.eng-fb-text {
    color: #fff;
    font-size: 16px;
    font-weight: 700;
}

/* ============== 学习模式页 ============== */
.eng-learn-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
    margin-bottom: 16px;
}
.eng-learn-tabs {
    display: flex;
    gap: 4px;
    background: var(--en-surface-active);
    border-radius: 999px;
    padding: 4px;
}
.eng-learn-tab {
    background: transparent;
    border: none;
    border-radius: 999px;
    color: var(--text-primary, #333);
    font-size: 14px;
    padding: 8px 18px;
    transition: all 0.25s;
}
.eng-learn-tab.active {
    background: var(--bg-card, #fff);
    color: var(--en-brand);
    font-weight: 700;
    box-shadow: 0 2px 8px rgba(155, 89, 182, 0.3);
}
.eng-back-btn {
    background: var(--en-surface);
    border: 1px solid var(--border-color, #e0e0e0);
    border-radius: 999px;
    color: var(--text-primary, #333);
    font-size: 14px;
    padding: 8px 20px;
    transition: background 0.2s;
}
.eng-back-btn:hover { background: var(--en-surface-active); }

.eng-learn-card-wrap {
    display: flex;
    flex-direction: column;
    justify-content: center;
    min-height: 340px;
}
.eng-learn-card {
    background: var(--bg-secondary, #fff);
    border: 1px solid var(--border-color, #e0e0e0);
    border-radius: 16px;
    box-shadow: 0 8px 28px rgba(0, 0, 0, 0.08);
    padding: 36px 28px;
    text-align: center;
}
.eng-learn-word {
    font-size: 38px;
    font-weight: 700;
    color: var(--text-primary, #333);
    margin-bottom: 8px;
    line-height: 1.25;
    word-break: break-word;
}
.eng-learn-phonetic {
    font-size: 18px;
    color: var(--text-secondary, #666);
    margin-bottom: 20px;
}
.eng-play-btn {
    display: inline-block;
    background: linear-gradient(135deg, var(--en-brand), var(--en-brand-end));
    border: none;
    border-radius: 999px;
    color: #fff;
    font-size: 14px;
    font-weight: 700;
    padding: 10px 26px;
    margin-bottom: 20px;
    box-shadow: 0 3px 10px rgba(155, 89, 182, 0.35);
    transition: transform 0.15s;
}
.eng-play-btn:active { transform: scale(0.96); }
.eng-learn-meaning {
    font-size: 22px;
    font-weight: 700;
    color: var(--en-brand);
}

.eng-learn-nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
    margin-top: 16px;
}
.eng-nav-btn {
    background: var(--en-surface);
    border: 1px solid var(--border-color, #e0e0e0);
    border-radius: 999px;
    color: var(--text-primary, #333);
    font-size: 14px;
    padding: 10px 22px;
    transition: all 0.2s;
}
.eng-nav-btn:hover:not(:disabled) { background: var(--en-surface-active); }
.eng-nav-btn:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}
.eng-learn-progress {
    font-size: 14px;
    color: var(--text-secondary, #666);
}

/* ============== 通用弹窗 ============== */
.eng-modal {
    position: fixed;
    inset: 0;
    z-index: 1300;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 16px;
}
.eng-modal-mask {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(2px);
}
.eng-modal-content {
    position: relative;
    background: var(--bg-card, #fff);
    border-radius: 16px;
    box-shadow: 0 12px 44px rgba(0, 0, 0, 0.22);
    padding: 24px;
    width: 100%;
    max-width: 420px;
    max-height: 86vh;
    overflow-y: auto;
    animation: engPop 0.25s;
}

.eng-btn {
    border: 1px solid var(--border-color, #e0e0e0);
    border-radius: 999px;
    background: var(--bg-card, #fff);
    color: var(--text-secondary, #666);
    font-size: 14px;
    font-weight: 700;
    padding: 10px 18px;
    flex: 1;
    transition: all 0.2s;
}
.eng-btn:hover { border-color: var(--en-brand); color: var(--en-brand); }
.eng-btn-primary {
    background: linear-gradient(135deg, var(--en-brand), var(--en-brand-end));
    border-color: transparent;
    color: #fff;
}
.eng-btn-primary:hover {
    color: #fff;
    box-shadow: 0 4px 14px rgba(155, 89, 182, 0.4);
}
.eng-btn-secondary {
    background: var(--en-surface);
    border-color: rgba(155, 89, 182, 0.4);
    color: var(--en-brand);
}
.eng-modal-actions {
    display: flex;
    gap: 10px;
    margin-top: 18px;
}

/* 结果弹窗 */
.eng-result-card {
    text-align: center;
    border: 3px solid var(--en-brand);
}
.eng-result-card.eng-success { border-color: var(--en-gold); }
.eng-result-icon {
    font-size: 46px;
    line-height: 1.2;
    margin-bottom: 6px;
}
.eng-result-title {
    font-size: 22px;
    font-weight: 700;
    color: var(--text-primary, #333);
}
.eng-result-subtitle {
    font-size: 13px;
    color: var(--text-secondary, #666);
    margin-bottom: 16px;
}
.eng-result-score-row {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 26px;
    margin-bottom: 14px;
}
.eng-result-score-row > div { min-width: 76px; }
.eng-result-score-row b {
    display: block;
    font-size: 24px;
    font-weight: 700;
    color: var(--en-brand);
}
.eng-result-score-row span {
    font-size: 12px;
    color: var(--text-secondary, #666);
}
.eng-divider {
    width: 1px;
    height: 34px;
    background: var(--border-color, #e0e0e0);
}
.eng-result-stats-row {
    display: flex;
    justify-content: center;
    gap: 34px;
    margin-bottom: 6px;
}
.eng-result-stats-row b {
    display: block;
    font-size: 17px;
    font-weight: 700;
}
.eng-result-stats-row b.eng-c { color: var(--en-brand); }
.eng-result-stats-row b.eng-w { color: var(--en-wrong); }
.eng-result-stats-row span {
    font-size: 12px;
    color: var(--text-secondary, #666);
}

/* 功能说明弹窗 */
.eng-intro-section { margin-bottom: 16px; }
.eng-intro-title {
    display: block;
    font-size: 15px;
    font-weight: 700;
    color: var(--text-primary, #333);
    margin-bottom: 8px;
}
.eng-intro-item {
    display: flex;
    gap: 8px;
    align-items: flex-start;
    margin-bottom: 7px;
}
.eng-intro-bullet { flex-shrink: 0; font-size: 14px; }
.eng-intro-text {
    font-size: 13px;
    line-height: 1.55;
    color: var(--text-secondary, #666);
}
.eng-intro-tip {
    display: flex;
    align-items: center;
    gap: 8px;
    background: linear-gradient(135deg, #fff3e0, #ffe0b2);
    border-radius: 10px;
    padding: 10px 12px;
    margin-bottom: 14px;
    font-size: 13px;
    font-weight: 500;
    color: var(--en-brand);
}
.eng-modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 14px;
}
.eng-modal-title {
    font-size: 16px;
    font-weight: 700;
    color: var(--text-primary, #333);
}
.eng-modal-close {
    background: none;
    border: none;
    font-size: 18px;
    color: var(--text-secondary, #666);
    padding: 4px 8px;
}
.eng-modal-close:hover { color: var(--en-brand); }

/* 复制成功小 toast */
.eng-toast {
    position: fixed;
    left: 50%;
    bottom: 9%;
    transform: translateX(-50%);
    background: rgba(45, 52, 54, 0.92);
    color: #fff;
    font-size: 13px;
    border-radius: 999px;
    padding: 9px 20px;
    z-index: 1400;
    pointer-events: none;
}

/* ============== 动画 ============== */
@keyframes engFadeIn {
    from { opacity: 0; transform: translate(-50%, -50%) scale(0.8); }
    to { opacity: 1; transform: translate(-50%, -50%) scale(1); }
}
@keyframes engPop {
    from { opacity: 0; transform: scale(0.92); }
    to { opacity: 1; transform: scale(1); }
}

/* ============== 响应式 ============== */
@media (max-width: 767px) {
    .eng-brand {
        padding: 12px 14px;
    }
    .eng-brand-title { font-size: 17px; }
    .eng-brand-sub { font-size: 12px; }
    .eng-card { padding: 14px; }
    .eng-mode-tab {
        max-width: none;
        padding: 10px 12px;
        font-size: 14px;
    }
    .eng-options { grid-template-columns: 1fr; }
    .eng-question-card { padding: 16px 14px; }
    .eng-question-text { font-size: 22px; }
    .eng-learn-card { padding: 26px 16px; }
    .eng-learn-word { font-size: 30px; }
    .eng-learn-phonetic { font-size: 15px; }
    .eng-learn-meaning { font-size: 19px; }
    .eng-learn-card-wrap { min-height: 300px; }
    .eng-nav-btn { padding: 9px 16px; font-size: 13px; }
    .eng-learn-tab { padding: 8px 13px; font-size: 13px; }
    .eng-result-score-row { gap: 18px; }
}

/* 减少动态效果偏好 */
@media (prefers-reduced-motion: reduce) {
    .eng-feedback,
    .eng-modal-content {
        animation: none;
    }
    .eng-mode-tab,
    .eng-progress-fill,
    .eng-start-btn {
        transition: none;
    }
}