/* CET-4 四级真题考试样式 */
.cet4-app {
	max-width: 760px;
	margin: 0 auto;
	font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
	color: #1f2937;
	line-height: 1.7;
}

.cet4-topbar {
	display: flex;
	flex-wrap: wrap;
	align-items: center;
	gap: 10px;
	margin-bottom: 16px;
}
.cet4-lbl { font-size: 14px; color: #6b7280; }
.cet4-select {
	font-size: 14px;
	padding: 6px 10px;
	border: 1px solid #d1d5db;
	border-radius: 8px;
	background: #fff;
}
.cet4-hint { font-size: 13px; color: #6b7280; }

.cet4-btn {
	font-size: 15px;
	padding: 9px 18px;
	border: 1px solid #d1d5db;
	border-radius: 10px;
	background: #fff;
	color: #374151;
	cursor: pointer;
	transition: all .15s;
}
.cet4-btn:hover { background: #f3f4f6; }
.cet4-btn:disabled { opacity: .45; cursor: not-allowed; }
.cet4-btn-primary { background: #2563eb; border-color: #2563eb; color: #fff; }
.cet4-btn-primary:hover { background: #1d4ed8; }

.cet4-title { font-size: 22px; font-weight: 700; margin: 10px 0 14px; }

.cet4-part {
	background: #fff;
	border: 1px solid #e5e7eb;
	border-radius: 14px;
	padding: 18px 20px;
	margin-bottom: 16px;
}
.cet4-part h3 {
	margin: 0 0 12px;
	font-size: 17px;
	color: #1d4ed8;
	border-bottom: 2px solid #eff6ff;
	padding-bottom: 8px;
}

.cet4-q {
	margin: 14px 0;
	padding: 12px 14px;
	border: 1px solid #f3f4f6;
	border-radius: 10px;
	background: #fafafa;
}
.cet4-qno {
	font-weight: 700;
	font-size: 14px;
	color: #374151;
	display: inline-block;
	margin-right: 6px;
}
.cet4-qtext { font-size: 15px; color: #111827; margin: 4px 0 8px; }

.cet4-opts { display: grid; gap: 6px; margin-top: 6px; }
.cet4-opt {
	display: flex;
	gap: 8px;
	align-items: baseline;
	font-size: 14.5px;
	padding: 6px 10px;
	border-radius: 8px;
	cursor: pointer;
	transition: background .12s;
}
.cet4-opt:hover { background: #eff6ff; }
.cet4-optkey { font-weight: 700; color: #1d4ed8; flex: none; }

.cet4-textarea {
	width: 100%;
	box-sizing: border-box;
	font-size: 15px;
	padding: 10px 12px;
	border: 1px solid #d1d5db;
	border-radius: 10px;
	font-family: inherit;
}

.cet4-audio { margin-bottom: 10px; }
.cet4-audio audio { width: 100%; }

.cet4-details {
	margin-bottom: 10px;
	border: 1px solid #e5e7eb;
	border-radius: 8px;
	background: #f8fafc;
}
.cet4-details summary {
	cursor: pointer;
	padding: 8px 12px;
	font-size: 14px;
	color: #2563eb;
	font-weight: 600;
}
.cet4-article {
	padding: 10px 14px;
	font-size: 14.5px;
	color: #1f2937;
	white-space: pre-wrap;
	max-height: 420px;
	overflow: auto;
}

.cet4-wordbank {
	font-size: 14px;
	background: #fffbeb;
	border: 1px solid #fde68a;
	border-radius: 8px;
	padding: 8px 12px;
	margin-bottom: 8px;
}
.cet4-word {
	display: inline-block;
	background: #fff;
	border: 1px solid #e5e7eb;
	border-radius: 999px;
	padding: 1px 10px;
	margin: 2px;
	font-size: 13px;
}

.cet4-anssel { margin-left: 6px; max-width: 100%; }

.cet4-actions { text-align: center; margin: 18px 0; }

/* 结果 */
.cet4-result-card {
	background: #fff;
	border: 1px solid #e5e7eb;
	border-radius: 14px;
	padding: 20px;
	margin-bottom: 16px;
	box-shadow: 0 4px 16px rgba(0,0,0,.05);
}
.cet4-result-card h3 { margin: 0 0 10px; }
.cet4-score { font-size: 17px; font-weight: 600; }
.cet4-score b { color: #2563eb; font-size: 22px; }
.cet4-stats { display: flex; flex-wrap: wrap; gap: 8px 16px; margin-top: 10px; font-size: 14px; }
.cet4-stat { background: #eff6ff; border-radius: 999px; padding: 2px 12px; color: #1d4ed8; }
.cet4-stat-sub { background: #f3f4f6; color: #6b7280; }

.cet4-analysis h4 {
	margin: 18px 0 8px;
	font-size: 15px;
	color: #374151;
	background: #f3f4f6;
	padding: 6px 12px;
	border-radius: 8px;
}
.cet4-aq {
	border: 1px solid #f3f4f6;
	border-left: 4px solid #d1d5db;
	border-radius: 8px;
	padding: 10px 14px;
	margin: 8px 0;
	background: #fafafa;
}
.cet4-aq.cet4-right { border-left-color: #22c55e; background: #f0fdf4; }
.cet4-aq.cet4-wrong { border-left-color: #ef4444; background: #fef2f2; }
.cet4-aq.cet4-subj { border-left-color: #f59e0b; background: #fffbeb; }
.cet4-aqhead { font-size: 14px; font-weight: 600; }
.cet4-aqtext { font-size: 14px; color: #374151; margin-top: 4px; }
.cet4-aqana {
	font-size: 13.5px;
	color: #6b7280;
	margin-top: 6px;
	background: #fff;
	border-radius: 6px;
	padding: 6px 10px;
	border: 1px dashed #e5e7eb;
}

/* 卷子列表 */
.cet4-paperlist h3 { margin: 14px 0 6px; font-size: 16px; }
.cet4-paperlist ul { margin: 0 0 8px; padding-left: 20px; }
.cet4-paperlist li { font-size: 14px; margin: 3px 0; }
.cet4-fmt {
	font-size: 12px;
	background: #eff6ff;
	color: #1d4ed8;
	border-radius: 999px;
	padding: 0 8px;
}

@media (max-width: 480px) {
	.cet4-part { padding: 14px 12px; }
	.cet4-q { padding: 10px; }
}