/* 测试页面样式 */
* { box-sizing: border-box; }

.test-wrapper { min-height: 100vh; padding: 3.125rem 0.938rem 1.875rem; max-width: 62.5rem; margin: 0 auto; }

/* 顶部进度 */
.top-bar { margin-bottom: 1.875rem; }

.progress-row { display: flex; align-items: center; gap: 0.781rem; margin-bottom: 0.625rem; }
.progress-track { flex: 1; height: 0.375rem; background: var(--bg-hover); border-radius: 0.375rem; overflow: hidden; position: relative; box-shadow: inset 0 0.062rem 0.125rem rgba(0,0,0,0.1); }
.progress-fill { height: 100%; background: linear-gradient(90deg, #667eea, #764ba2, #f093fb); border-radius: 0.375rem; transition: width 0.4s ease-out; position: relative; overflow: hidden; }
.progress-fill::after { content: ''; position: absolute; top: 0; left: 0; right: 0; bottom: 0; background: linear-gradient(90deg, transparent, rgba(255,255,255,0.3), transparent); animation: progressShine 2s ease-in-out infinite; pointer-events: none; }
@keyframes progressShine { 0% { transform: translateX(-100%); } 100% { transform: translateX(100%); } }
.progress-num { font-size: 1rem; color: var(--text-secondary); font-weight: 600; min-width: 5.625rem; text-align: right; }
.progress-percent { font-size: 0.812rem; color: var(--accent-primary); font-weight: 700; display: block; margin-top: 0.062rem; }

.info-row { display: flex; justify-content: space-between; align-items: center; }
.time-hint { font-size: 0.875rem; color: var(--text-muted); }
.timer-box { display: flex; align-items: center; gap: 0.312rem; padding: 0.375rem 0.688rem; background: var(--bg-card); border: 1px solid var(--border-color); border-radius: 0.938rem; font-size: 1rem; font-weight: 600; color: var(--text-primary); transition: all 0.3s ease; }
.timer-box.warning { border-color: var(--warning-color); color: var(--warning-color); box-shadow: 0 0 0.5rem rgba(245,158,11,0.3); }
.timer-box.danger { border-color: var(--danger-color); color: var(--danger-color); box-shadow: 0 0 0.5rem rgba(239,68,68,0.3); }

/* 题目区域 */
.question-area { margin-bottom: 1.875rem; background: var(--bg-card); border-radius: 0.938rem; padding: 1.562rem; box-shadow: 0 0.156rem 0.938rem rgba(0,0,0,0.08), 0 0.031rem 0.062rem rgba(0,0,0,0.04); border: 1px solid var(--border-color); position: relative; overflow: hidden; }
.question-area::before { content: ''; position: absolute; top: 0; left: 0; right: 0; height: 0.156rem; background: linear-gradient(90deg, #667eea, #764ba2); }
.q-index { font-size: 0.812rem; color: var(--accent-primary); font-weight: 700; letter-spacing: 0.062rem; margin-bottom: 0.781rem; text-transform: uppercase; }
.q-text { font-size: clamp(1.25rem, 3vw, 1.625rem); line-height: 1.6; color: var(--text-primary); font-weight: 600; margin-bottom: 1.562rem; text-align: center; }

/* 题目切换动画 */
.question-animate { animation: qSlideIn 0.35s ease-out; }
@keyframes qSlideIn { 0% { opacity: 0; transform: translateX(1.25rem); } 100% { opacity: 1; transform: translateX(0); } }
.question-animate-out { animation: qSlideOut 0.25s ease-in; }
@keyframes qSlideOut { 0% { opacity: 1; transform: translateX(0); } 100% { opacity: 0; transform: translateX(-1.25rem); } }

/* AB选项按钮 */
.option-list { display: flex; flex-direction: column; gap: 0.625rem; margin: 0 auto; }
.opt-btn { width: 100%; padding: 0.938rem 1.094rem; background: var(--bg-card); border: 2px solid var(--border-color); border-radius: 0.625rem; cursor: pointer; display: flex; align-items: center; justify-content: space-between; position: relative; overflow: hidden; transition: all 0.3s ease; box-shadow: 0 0.062rem 0.312rem rgba(0,0,0,0.04); }
.opt-btn::before { content: ''; position: absolute; top: 0; left: 0; right: 0; bottom: 0; background: linear-gradient(135deg, rgba(102,126,234,0.1), rgba(118,75,162,0.1)); opacity: 0; transition: opacity 0.3s ease; }
.opt-btn:hover { border-color: var(--accent-primary); transform: translateY(-0.062rem); box-shadow: 0 0.312rem 0.938rem rgba(102,126,234,0.15); }
.opt-btn:hover::before { opacity: 1; }
.opt-btn:active { transform: translateY(0) scale(0.98); }
.opt-btn.selected { background: linear-gradient(135deg, #667eea, #764ba2); border-color: transparent; box-shadow: 0 0.312rem 1.25rem rgba(102,126,234,0.35); transform: translateY(-0.062rem); }
.opt-btn.selected .opt-txt { color: #fff; }
.opt-btn.selected::after { content: '✓'; position: absolute; right: 0.781rem; top: 50%; transform: translateY(-50%); font-size: 1.25rem; color: rgba(255,255,255,0.8); animation: checkPop 0.3s ease-out; }
@keyframes checkPop { 0% { transform: translateY(-50%) scale(0); } 50% { transform: translateY(-50%) scale(1.2); } 100% { transform: translateY(-50%) scale(1); } }
.opt-content { flex: 1; padding-right: 0.781rem; position: relative; z-index: 1; }
.opt-txt { font-size: clamp(1.062rem, 2vw, 1.375rem); line-height: 1.5; color: var(--text-primary); font-weight: 500; text-align: left; transition: color 0.3s ease; }
.opt-tag { font-size: 0.875rem; font-weight: 700; color: var(--accent-primary); min-width: 2.812rem; text-align: center; padding: 0.375rem 0.688rem; background: linear-gradient(135deg, rgba(102,126,234,0.1), rgba(118,75,162,0.1)); border-radius: 0.375rem; position: relative; z-index: 1; transition: all 0.3s ease; }
.opt-btn:hover .opt-tag { background: linear-gradient(135deg, rgba(102,126,234,0.2), rgba(118,75,162,0.2)); transform: scale(1.05); }
.opt-btn.selected .opt-tag { background: rgba(255,255,255,0.2); color: #fff; }

/* 底部导航 */
.bottom-bar { display: flex; justify-content: space-between; align-items: center; padding-top: 1.25rem; border-top: 1px solid var(--border-color); }
.nav-btn { padding: 0.562rem 1.25rem; border-radius: 1.094rem; font-size: 1rem; font-weight: 600; cursor: pointer; transition: all 0.3s ease; position: relative; overflow: hidden; }
.nav-prev { background: transparent; color: var(--text-secondary); border: 1px solid var(--border-color); }
.nav-prev:hover:not(:disabled) { color: var(--text-primary); border-color: var(--accent-primary); background: rgba(102,126,234,0.05); }
.nav-prev:disabled { opacity: 0.3; cursor: not-allowed; }
.nav-next { background: linear-gradient(135deg, #667eea, #764ba2); color: #fff; border: none; box-shadow: 0 0.156rem 0.625rem rgba(102, 126, 234, 0.3); }
.nav-next:hover:not(:disabled) { transform: translateY(-0.125rem); box-shadow: 0 0.312rem 0.938rem rgba(102, 126, 234, 0.45); }
.nav-next:active:not(:disabled) { transform: translateY(-0.031rem); }
.nav-next:disabled { opacity: 0.4; cursor: not-allowed; box-shadow: none; }

/* 暂停按钮 */
.pause-btn { position: fixed; bottom: 0.938rem; right: 0.938rem; width: 2.188rem; height: 2.188rem; border-radius: 50%; background: linear-gradient(135deg, #667eea, #764ba2); border: none; font-size: 0.875rem; cursor: pointer; z-index: 50; box-shadow: 0 0.156rem 0.781rem rgba(102, 126, 234, 0.4); display: flex; align-items: center; justify-content: center; transition: all 0.3s ease; }
.pause-btn:hover { transform: scale(1.1) rotate(5deg); box-shadow: 0 0.312rem 1.25rem rgba(102, 126, 234, 0.5); }
.pause-btn:active { transform: scale(1.05); }

/* 完成弹窗 */
.complete-overlay { position: fixed; inset: 0; background: rgba(0,0,0,0.85); display: none; align-items: center; justify-content: center; z-index: 9999; }
.complete-overlay.show { display: flex; animation: fadeIn 0.3s ease forwards; }
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }
@keyframes scaleIn { from { transform: scale(0.9); opacity: 0; } to { transform: scale(1); opacity: 1; } }
.complete-box { background: linear-gradient(145deg, var(--bg-card), var(--bg-hover)); padding: 1.875rem 1.562rem; border-radius: 0.938rem; text-align: center; max-width: 20rem; width: 90%; box-shadow: 0 0.781rem 2.5rem rgba(0,0,0,0.3), 0 0 0 1px rgba(255,255,255,0.1); animation: scaleIn 0.4s ease 0.1s forwards; opacity: 0; }
.complete-icon { font-size: 4.375rem; margin-bottom: 0.625rem; animation: bounce 0.6s ease 0.3s; }
@keyframes bounce { 0%, 100% { transform: scale(1); } 50% { transform: scale(1.2); } }
.complete-title { font-size: 1.75rem; font-weight: 700; margin-bottom: 0.312rem; background: linear-gradient(135deg, #667eea, #764ba2); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.complete-subtitle { font-size: 0.875rem; color: var(--text-muted); margin-bottom: 1.094rem; }
.complete-stats { display: flex; justify-content: center; gap: 0.938rem; margin-bottom: 0.938rem; padding: 0.781rem; background: rgba(102,126,234,0.08); border-radius: 0.625rem; }
.stat-item { text-align: center; }
.stat-value { font-size: 1.75rem; font-weight: 700; color: var(--accent-primary); line-height: 1.2; }
.stat-label { font-size: 0.812rem; color: var(--text-muted); margin-top: 0.156rem; }
.complete-feedback { padding: 0.781rem; background: var(--bg-card); border-radius: 0.469rem; margin-bottom: 1.094rem; border: 1px solid var(--border-color); text-align: left; }
.feedback-title { font-size: 0.875rem; font-weight: 600; color: var(--accent-primary); margin-bottom: 0.375rem; display: flex; align-items: center; gap: 0.25rem; }
.feedback-text { font-size: 0.875rem; line-height: 1.7; color: var(--text-secondary); }
.feedback-text p { margin: 0 0 0.312rem; }
.feedback-text p:last-child { margin-bottom: 0; }
.complete-btns { display: flex; flex-direction: column; gap: 0.469rem; }
.complete-btn { padding: 0.625rem 1.25rem; border-radius: 1.094rem; font-size: 1.062rem; font-weight: 600; cursor: pointer; transition: all 0.2s; }
.complete-btn-primary { background: linear-gradient(135deg, #667eea, #764ba2); color: #fff; border: none; box-shadow: 0 0.156rem 0.625rem rgba(102, 126, 234, 0.4); }
.complete-btn-primary:hover { transform: translateY(-0.062rem); box-shadow: 0 0.25rem 0.781rem rgba(102, 126, 234, 0.5); }
.complete-btn-secondary { background: transparent; color: var(--text-primary); border: 1px solid var(--border-color); }
.complete-btn-secondary:hover { background: var(--bg-hover); }

.user-info-form { margin: 0.781rem 0; padding: 0.781rem; background: var(--bg-hover); border-radius: 0.469rem; border: 1px solid var(--border-color); }
.user-info-form .form-title { font-size: 1rem; font-weight: 600; margin-bottom: 0.625rem; color: var(--text-primary); }
.form-row { margin-bottom: 0.562rem; }
.form-row.half { display: flex; gap: 0.625rem; }
.form-col { flex: 1; }
.form-label { display: block; font-size: 0.812rem; color: var(--text-secondary); margin-bottom: 0.25rem; }
.form-label.required::after { content: ' *'; color: var(--danger-color); }
.form-input { width: 100%; padding: 0.469rem 0.562rem; background: var(--bg-hover); border: 1px solid var(--border-color); border-radius: 0.312rem; color: var(--text-primary); font-size: 0.875rem; transition: all 0.2s; }
.form-input:focus { outline: none; border-color: var(--accent-primary); background: var(--bg-card); }
.form-input::placeholder { color: var(--text-muted); }

.toast-overlay { position: fixed; inset: 0; background: rgba(0,0,0,0.7); display: none; align-items: center; justify-content: center; z-index: 10001; }
.toast-overlay.show { display: flex; }
.toast-box { background: var(--bg-card); padding: 1.25rem; border-radius: 0.625rem; text-align: center; max-width: 12.5rem; box-shadow: 0 0.781rem 1.875rem rgba(0,0,0,0.5); }
.toast-icon { font-size: 3.125rem; margin-bottom: 0.625rem; }
.toast-text { font-size: 1rem; color: var(--text-primary); margin-bottom: 0.781rem; line-height: 1.6; }
.toast-btn { background: linear-gradient(135deg, #667eea, #764ba2); color: #fff; border: none; padding: 0.469rem 1.25rem; border-radius: 0.938rem; font-size: 0.875rem; font-weight: 600; cursor: pointer; transition: all 0.2s; }
.toast-btn:hover { transform: translateY(-0.062rem); box-shadow: 0 0.156rem 0.625rem rgba(102,126,234,0.4); }

/* 加载和错误 */
.loading-wrap, .error-wrap { display: flex; flex-direction: column; align-items: center; justify-content: center; min-height: 100vh; gap: 0.625rem; }
.spinner { width: 1.562rem; height: 1.562rem; border: 0.125rem solid var(--border-color); border-top-color: var(--accent-primary); border-radius: 50%; animation: spin 0.8s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }
.hidden { display: none !important; }

/* 跳过导航链接样式 */
.skip-link { position: absolute; top: -3.75rem; left: 50%; transform: translateX(-50%); padding: 0.469rem 0.938rem; background: linear-gradient(135deg, #667eea, #764ba2); color: #fff; border-radius: 0.469rem; font-weight: 600; z-index: 9999; transition: top 0.3s; text-decoration: none; }
.skip-link:focus { top: 0.375rem; outline: 0.125rem solid #fff; outline-offset: 0.062rem; }

/* 7级量表圆形选项样式 */
.scale-options { display: flex; justify-content: center; align-items: center; gap: 1.25rem; padding: 0.938rem 0 1.25rem; position: relative; width: 100%; }
.scale-option { display: flex; flex-direction: column; align-items: center; cursor: pointer; position: relative; }
.scale-circle { border-radius: 50%; border: 0.25rem solid currentColor; background: transparent; transition: all 0.2s; position: relative; display: flex; align-items: center; justify-content: center; }
.scale-label { position: absolute; top: 100%; margin-top: 0.375rem; font-size: 0.75rem; color: rgba(255,255,255,0.25); text-align: center; max-width: 3.75rem; transition: color 0.2s, opacity 0.2s; line-height: 1.2; opacity: 0; white-space: nowrap; }
.scale-option:not(.selected):hover .scale-circle { transform: scale(1.05); }
.scale-option:not(.selected):hover .scale-circle::before { content: ''; position: absolute; inset: 0; border-radius: 50%; background: currentColor; opacity: 0.5; }
.scale-option:not(.selected):hover .scale-circle::after { content: '✓'; color: #fff; font-weight: bold; position: relative; z-index: 1; }
.scale-option:not(.selected):hover.level-1 .scale-circle::after, .scale-option:not(.selected):hover.level-7 .scale-circle::after { font-size: 1.875rem; }
.scale-option:not(.selected):hover.level-2 .scale-circle::after, .scale-option:not(.selected):hover.level-6 .scale-circle::after { font-size: 1.5rem; }
.scale-option:not(.selected):hover.level-3 .scale-circle::after, .scale-option:not(.selected):hover.level-5 .scale-circle::after { font-size: 1.125rem; }
.scale-option:not(.selected):hover.level-4 .scale-circle::after { font-size: 0.75rem; }
.scale-option:hover .scale-label { color: rgba(255,255,255,0.6); opacity: 1; }

/* 同意/不同意端点标签 */
.scale-end-label { font-size: 1rem; font-weight: 600; padding: 0.312rem 0.75rem; user-select: none; align-self: center; border-radius: 0.375rem; }
.scale-end-label.agree { background: var(--success-color); color: #fff; }
.scale-end-label.disagree { background: var(--purple-color); color: #fff; }

/* 同意方向 - 绿色 */
.scale-option.level-1, .scale-option.level-2, .scale-option.level-3 { color: var(--success-color); }
.scale-option.level-1 .scale-circle { width: 6.25rem; height: 6.25rem; }
.scale-option.level-2 .scale-circle { width: 5rem; height: 5rem; }
.scale-option.level-3 .scale-circle { width: 3.75rem; height: 3.75rem; }

/* 中立 - 灰色 */
.scale-option.level-4 { color: var(--neutral-color); }
.scale-option.level-4 .scale-circle { width: 2.5rem; height: 2.5rem; border-width: 0.188rem; }

/* 不同意方向 - 紫色 */
.scale-option.level-5, .scale-option.level-6, .scale-option.level-7 { color: var(--purple-color); }
.scale-option.level-5 .scale-circle { width: 3.75rem; height: 3.75rem; }
.scale-option.level-6 .scale-circle { width: 5rem; height: 5rem; }
.scale-option.level-7 .scale-circle { width: 6.25rem; height: 6.25rem; }

/* 选中状态 - 内部实心圆 + 勾号 */
.scale-option.selected .scale-circle { background: currentColor; border-color: currentColor; transform: scale(1.05); }
.scale-option.selected .scale-circle::after { content: '✓'; color: #fff; font-weight: bold; }
.scale-option.selected.level-1 .scale-circle::after, .scale-option.selected.level-7 .scale-circle::after { font-size: 1.875rem; }
.scale-option.selected.level-2 .scale-circle::after, .scale-option.selected.level-6 .scale-circle::after { font-size: 1.5rem; }
.scale-option.selected.level-3 .scale-circle::after, .scale-option.selected.level-5 .scale-circle::after { font-size: 1.125rem; }
.scale-option.selected.level-4 .scale-circle::after { font-size: 0.75rem; }
.scale-option.selected .scale-label { color: rgba(255,255,255,0.6); opacity: 1; }

/* 点击反馈动画 */
.scale-option:active .scale-circle { transform: scale(0.95); }

/* 移动端适配 */
@media (max-width: 767px) {
    .test-wrapper { padding: 1.562rem 0.625rem; }
    .question-area { padding: 1.25rem 0.938rem 1.875rem; border-radius: 0.781rem; }
    .q-text { font-size: 1.25rem; }
    .timer-box { font-size: 0.875rem; padding: 0.312rem 0.562rem; }
    .complete-box { padding: 1.25rem 0.938rem; max-width: 100%; width: calc(100% - 2rem); margin: 0 1rem; }
    .complete-stats { gap: 0.625rem; padding: 0.625rem; }
    .stat-value { font-size: 1.5rem; }
    .opt-btn { padding: 0.688rem 0.781rem; }
    .opt-content { padding-right: 0.469rem; }
    .opt-txt { font-size: 1rem; }
    .opt-tag { min-width: 2.5rem; padding: 0.312rem 0.469rem; font-size: 0.812rem; }
    .scale-options { gap: clamp(0.25rem, 1.8vw, 0.625rem); padding: 0.938rem 0 1.562rem; flex-wrap: nowrap; align-items: center; width: 100%; justify-content: center; }
    .scale-end-label { display: none; }
    .scale-option { flex: 0 0 auto; flex-direction: column; align-items: center; position: relative; }
    .scale-label { display: none; }
    .scale-circle { border-width: 0.156rem; }
    .scale-option.level-1 .scale-circle { width: clamp(3.125rem, 13vw, 5.312rem); height: clamp(3.125rem, 13vw, 5.312rem); }
    .scale-option.level-2 .scale-circle { width: clamp(2.625rem, 11vw, 4.375rem); height: clamp(2.625rem, 11vw, 4.375rem); }
    .scale-option.level-3 .scale-circle { width: clamp(2.125rem, 9vw, 3.438rem); height: clamp(2.125rem, 9vw, 3.438rem); }
    .scale-option.level-4 .scale-circle { width: clamp(1.625rem, 7vw, 2.5rem); height: clamp(1.625rem, 7vw, 2.5rem); border-width: 0.156rem; }
    .scale-option.level-5 .scale-circle { width: clamp(2.125rem, 9vw, 3.438rem); height: clamp(2.125rem, 9vw, 3.438rem); }
    .scale-option.level-6 .scale-circle { width: clamp(2.625rem, 11vw, 4.375rem); height: clamp(2.625rem, 11vw, 4.375rem); }
    .scale-option.level-7 .scale-circle { width: clamp(3.125rem, 13vw, 5.312rem); height: clamp(3.125rem, 13vw, 5.312rem); }
    .scale-option:hover .scale-circle { opacity: 0.6; }
    .scale-option:hover.level-1 .scale-circle::after, .scale-option:hover.level-7 .scale-circle::after { font-size: clamp(0.75rem, 3vw, 1.25rem); }
    .scale-option:hover.level-2 .scale-circle::after, .scale-option:hover.level-6 .scale-circle::after { font-size: clamp(0.625rem, 2.5vw, 1rem); }
    .scale-option:hover.level-3 .scale-circle::after, .scale-option:hover.level-5 .scale-circle::after { font-size: clamp(0.5rem, 2vw, 0.812rem); }
    .scale-option.selected.level-1 .scale-circle::after, .scale-option.selected.level-7 .scale-circle::after { font-size: clamp(0.75rem, 3vw, 1.25rem); }
    .scale-option.selected.level-2 .scale-circle::after, .scale-option.selected.level-6 .scale-circle::after { font-size: clamp(0.625rem, 2.5vw, 1rem); }
    .scale-option.selected.level-3 .scale-circle::after, .scale-option.selected.level-5 .scale-circle::after { font-size: clamp(0.5rem, 2vw, 0.812rem); }
    .scale-option.level-1::after { content: '同意'; position: absolute; bottom: -1.438rem; left: 50%; transform: translateX(-50%); font-size: clamp(0.625rem, 2.5vw, 0.875rem); color: rgba(255,255,255,0.5); white-space: nowrap; }
    .scale-option.level-7::after { content: '不同意'; position: absolute; bottom: -1.438rem; left: 50%; transform: translateX(-50%); font-size: clamp(0.625rem, 2.5vw, 0.875rem); color: rgba(255,255,255,0.5); white-space: nowrap; }
}