/* ==========================================
   问答页样式
   ========================================== */

.quiz-intro {
    text-align: center;
    font-size: 17px;
    color: var(--color-gold-soft);
    letter-spacing: 2px;
    margin-bottom: 50px;
    opacity: 0.85;
}

.quiz-container {
    max-width: 720px;
    margin: 0 auto;
    background: linear-gradient(135deg,
        rgba(255, 215, 0, 0.05) 0%,
        rgba(200, 16, 46, 0.05) 100%);
    border: 1px solid rgba(255, 215, 0, 0.25);
    border-radius: 20px;
    padding: 50px 44px;
    min-height: 420px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.quiz-container::before {
    content: '?';
    position: absolute;
    top: -40px;
    right: 30px;
    font-size: 200px;
    color: var(--color-gold);
    opacity: 0.04;
    font-family: var(--font-calligraphy);
}

.hidden { display: none !important; }

.quiz-start, .quiz-result { text-align: center; }

.quiz-start-icon, .quiz-result-icon {
    font-size: 80px;
    margin-bottom: 20px;
    animation: floatBounce 2s ease-in-out infinite;
    display: inline-block;
}

@keyframes floatBounce {
    0%, 100% { transform: translateY(0) rotate(0); }
    50% { transform: translateY(-12px) rotate(5deg); }
}

.quiz-start h3, .quiz-result h3 {
    font-family: var(--font-title);
    font-size: 32px;
    color: var(--color-gold);
    letter-spacing: 4px;
    margin-bottom: 12px;
}

.quiz-start p, #quiz-result-text {
    font-size: 15px;
    color: var(--color-cream);
    opacity: 0.85;
    margin-bottom: 30px;
    letter-spacing: 1px;
}

.quiz-best-score {
    display: flex;
    justify-content: center;
    gap: 24px;
    margin: 20px 0 28px;
    font-size: 14px;
    color: var(--color-gold-soft);
    letter-spacing: 1px;
    flex-wrap: wrap;
}

.quiz-best-score strong {
    color: var(--color-gold);
    font-family: var(--font-title);
    font-size: 20px;
    margin: 0 2px;
}

/* ---------- 配置：难度 / 模式 ---------- */
.quiz-config {
    display: flex;
    flex-direction: column;
    gap: 14px;
    margin: 8px 0 22px;
    padding: 18px 16px;
    background: rgba(10, 5, 24, 0.4);
    border: 1px dashed rgba(255, 215, 0, 0.25);
    border-radius: 14px;
}

.quiz-config-row {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    flex-wrap: wrap;
}

.quiz-config-row > label {
    font-size: 14px;
    color: var(--color-gold-soft);
    letter-spacing: 2px;
    min-width: 48px;
    text-align: right;
}

.quiz-difficulty-pick {
    display: inline-flex;
    flex-wrap: wrap;
    gap: 8px;
    justify-content: center;
}

.quiz-diff-btn,
.quiz-mode-btn {
    padding: 8px 16px;
    background: rgba(255, 215, 0, 0.05);
    border: 1px solid rgba(255, 215, 0, 0.3);
    border-radius: 22px;
    color: var(--color-cream);
    font-family: var(--font-body);
    font-size: 13px;
    cursor: pointer;
    letter-spacing: 1.5px;
    transition: all 0.25s;
    opacity: 0.7;
}

.quiz-diff-btn:hover,
.quiz-mode-btn:hover {
    background: rgba(255, 215, 0, 0.12);
    opacity: 1;
    transform: translateY(-1px);
}

.quiz-diff-btn.active,
.quiz-mode-btn.active {
    background: linear-gradient(135deg, var(--color-gold) 0%, var(--color-orange) 100%);
    border-color: var(--color-gold);
    color: var(--color-night-deep);
    font-weight: 600;
    opacity: 1;
    box-shadow: 0 4px 14px rgba(255, 215, 0, 0.35);
}

.quiz-start-btn,
.quiz-restart-btn {
    padding: 14px 36px;
    background: linear-gradient(135deg, var(--color-gold) 0%, var(--color-orange) 100%);
    border: none;
    border-radius: 30px;
    color: var(--color-night-deep);
    font-family: var(--font-body);
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    letter-spacing: 3px;
    transition: all 0.3s;
    box-shadow: 0 8px 24px rgba(255, 215, 0, 0.3);
}

.quiz-start-btn:hover,
.quiz-restart-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 32px rgba(255, 215, 0, 0.5);
}

.quiz-progress { margin-bottom: 30px; }

.quiz-progress-info {
    display: flex;
    justify-content: space-between;
    font-size: 14px;
    color: var(--color-gold-soft);
    margin-bottom: 10px;
    letter-spacing: 2px;
    gap: 8px;
    flex-wrap: wrap;
}

.quiz-progress-info > #quiz-progress-text,
.quiz-progress-info > #quiz-progress-timer,
.quiz-progress-info > span:last-child {
    flex: 0 1 auto;
}

.quiz-progress-info span:last-child {
    color: var(--color-gold);
    font-weight: bold;
}

#quiz-progress-timer {
    color: var(--color-cream);
    font-weight: 600;
    padding: 2px 8px;
    border-radius: 8px;
    background: rgba(255, 215, 0, 0.08);
    transition: all 0.3s;
}

#quiz-progress-timer.warning {
    color: #ffcdd2;
    background: rgba(244, 67, 54, 0.2);
    border: 1px solid rgba(244, 67, 54, 0.4);
    animation: quizTimerPulse 0.6s ease-in-out infinite;
}

#quiz-progress-timer.hidden { display: none !important; }

@keyframes quizTimerPulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.08); }
}

.quiz-progress-bar {
    height: 6px;
    background: rgba(255, 215, 0, 0.1);
    border-radius: 3px;
    overflow: hidden;
}

.quiz-progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--color-gold) 0%, var(--color-orange) 100%);
    width: 0;
    transition: width 0.5s;
    border-radius: 3px;
    box-shadow: 0 0 8px rgba(255, 215, 0, 0.5);
}

.quiz-question {
    font-family: var(--font-title);
    font-size: 22px;
    color: var(--color-cream);
    letter-spacing: 2px;
    line-height: 1.6;
    margin-bottom: 30px;
    text-align: center;
}

.quiz-question-meta {
    display: flex;
    justify-content: center;
    gap: 12px;
    margin-bottom: 14px;
    flex-wrap: wrap;
}

.quiz-q-diff {
    font-size: 14px;
    color: var(--color-gold);
    letter-spacing: 4px;
    padding: 3px 10px;
    background: rgba(255, 215, 0, 0.08);
    border: 1px solid rgba(255, 215, 0, 0.3);
    border-radius: 10px;
}

.quiz-q-cat {
    font-size: 12px;
    color: var(--color-gold-soft);
    letter-spacing: 1.5px;
    padding: 3px 10px;
    background: rgba(200, 16, 46, 0.08);
    border: 1px solid rgba(200, 16, 46, 0.3);
    border-radius: 10px;
}

.quiz-options {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
    margin-bottom: 24px;
}

.quiz-option {
    padding: 16px 20px;
    background: rgba(255, 215, 0, 0.04);
    border: 1px solid rgba(255, 215, 0, 0.3);
    border-radius: 12px;
    color: var(--color-cream);
    font-family: var(--font-body);
    font-size: 15px;
    cursor: pointer;
    letter-spacing: 1px;
    transition: all 0.3s;
    text-align: left;
}

.quiz-option:hover:not(:disabled) {
    background: rgba(255, 215, 0, 0.12);
    border-color: var(--color-gold);
    transform: translateY(-2px);
}

.quiz-option.correct {
    background: rgba(76, 175, 80, 0.2);
    border-color: #4caf50;
    color: #a5d6a7;
}

.quiz-option.wrong {
    background: rgba(244, 67, 54, 0.2);
    border-color: #f44336;
    color: #ef9a9a;
    animation: optionWrong 0.5s;
}

@keyframes optionWrong {
    0%, 100% { transform: translateX(0); }
    25% { transform: translateX(-6px); }
    75% { transform: translateX(6px); }
}

.quiz-option:disabled { cursor: not-allowed; opacity: 0.7; }

.quiz-feedback {
    text-align: center;
    font-size: 14px;
    padding: 12px 16px;
    border-radius: 8px;
    margin-bottom: 16px;
    min-height: 20px;
    line-height: 1.7;
    letter-spacing: 1px;
}

.quiz-feedback.correct {
    background: rgba(76, 175, 80, 0.1);
    color: #a5d6a7;
    border: 1px solid rgba(76, 175, 80, 0.3);
}

.quiz-feedback.wrong {
    background: rgba(244, 67, 54, 0.1);
    color: #ef9a9a;
    border: 1px solid rgba(244, 67, 54, 0.3);
}

.quiz-next-btn {
    width: 100%;
    padding: 14px;
    background: linear-gradient(135deg, var(--color-gold) 0%, var(--color-orange) 100%);
    border: none;
    border-radius: 12px;
    color: var(--color-night-deep);
    font-family: var(--font-body);
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    letter-spacing: 3px;
    transition: all 0.3s;
}

.quiz-next-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(255, 215, 0, 0.4);
}

.quiz-score-num {
    font-family: var(--font-calligraphy);
    font-size: 80px;
    color: var(--color-gold);
    text-shadow: 0 0 24px rgba(255, 215, 0, 0.6);
    font-weight: bold;
}

.quiz-score-total {
    font-size: 24px;
    color: var(--color-cream);
    opacity: 0.7;
    margin-left: 8px;
}

/* ---------- 结果统计 ---------- */
.quiz-result-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 10px;
    margin: 18px 0 24px;
}

.quiz-stat {
    background: rgba(10, 5, 24, 0.45);
    border: 1px solid rgba(255, 215, 0, 0.2);
    border-radius: 10px;
    padding: 12px 8px;
    text-align: center;
}

.quiz-stat-label {
    font-size: 12px;
    color: var(--color-gold-soft);
    letter-spacing: 2px;
    margin-bottom: 6px;
    opacity: 0.8;
}

.quiz-stat-value {
    font-family: var(--font-title);
    font-size: 20px;
    color: var(--color-gold);
    letter-spacing: 1px;
}

/* ---------- 结果操作按钮 ---------- */
.quiz-result-actions {
    display: flex;
    gap: 12px;
    justify-content: center;
    flex-wrap: wrap;
    margin-top: 8px;
}

.quiz-back-btn {
    padding: 14px 28px;
    background: transparent;
    border: 1px solid rgba(255, 215, 0, 0.4);
    border-radius: 30px;
    color: var(--color-gold-soft);
    font-family: var(--font-body);
    font-size: 15px;
    cursor: pointer;
    letter-spacing: 3px;
    transition: all 0.3s;
}

.quiz-back-btn:hover {
    background: rgba(255, 215, 0, 0.08);
    color: var(--color-gold);
    border-color: var(--color-gold);
    transform: translateY(-2px);
}

@media (max-width: 568px) {
    .quiz-container { padding: 32px 24px; }
    .quiz-question { font-size: 18px; }
    .quiz-options { grid-template-columns: 1fr; }
    .quiz-result h3 { font-size: 24px; }
    .quiz-score-num { font-size: 60px; }
    .quiz-config { padding: 14px 10px; }
    .quiz-config-row { flex-direction: column; gap: 8px; }
    .quiz-config-row > label { text-align: center; min-width: 0; }
    .quiz-diff-btn, .quiz-mode-btn { padding: 7px 12px; font-size: 12px; }
    .quiz-result-stats { grid-template-columns: 1fr; }
    .quiz-stat-value { font-size: 18px; }
    .quiz-result-actions { flex-direction: column; }
    .quiz-restart-btn, .quiz-back-btn { width: 100%; }
}