/* 题库插件 —— 前台专题页样式 */

/*
 * 图标字体兜底：主程序 tabler-icons 采用 media=print+onload 异步加载，某些场景下
 * onload 不触发导致图标乱码/不显示。这里同步 @import 插件自带的一份 tabler-icons.css
 * （含 @font-face + content 规则，字体随插件部署，绝对可靠），覆盖主程序的异步加载。
 * 插件所有前台页面均引入 qbank.css，因此 @import 同步生效。
 */
@import url('../vendor/tabler-icons/tabler-icons.min.css');

/* ============ 品牌统一视觉层 ============ */
:root {
	--pq-primary: #4f6ef7;
	--pq-primary-2: #6a5ae0;
	--pq-primary-grad: linear-gradient(135deg, #4f6ef7 0%, #6a5ae0 60%, #8a5ae0 100%);
	--pq-success: #10b981;
	--pq-warning: #f59e0b;
	--pq-danger: #ef4444;
	--pq-page-bg: #f4f6fb;
	--pq-card-radius: 14px;
	--pq-shadow-sm: 0 2px 10px rgba(31,45,61,.05);
	--pq-shadow-md: 0 8px 24px rgba(31,45,61,.08);
	--pq-text: #1f2937;
	--pq-text-2: #6b7280;
}

/* 页面头部标题：品牌渐变文字 + 左侧竖条 */
.pq-page-head {
	display: flex; align-items: center; gap: 10px;
	border-left: 4px solid var(--pq-primary);
	padding-left: 12px;
}
.pq-page-head h1, .pq-page-head .h1,
.pq-page-head h2, .pq-page-head .h2,
.pq-page-head .h4 {
	margin: 0; font-weight: 700; letter-spacing: .3px;
	background: var(--pq-primary-grad);
	-webkit-background-clip: text;
	background-clip: text;
	-webkit-text-fill-color: transparent;
	color: var(--pq-primary);
}
.pq-page-head .sub { color: var(--pq-text-2); font-size: .9rem; }
/* 未加 pq-page-head 的页面标题（h1.h4 + sub 结构）也统一美化 */
.pq-h1 {
	font-weight: 700;
	background: var(--pq-primary-grad);
	-webkit-background-clip: text;
	background-clip: text;
	-webkit-text-fill-color: transparent;
	color: var(--pq-primary);
}
.pq-sub { color: var(--pq-text-2); }

/* 统一卡片：圆角 + hover 上浮（qbank.css 仅在题库插件页面引入，作用域天然限定，无全局污染） */
.x-card {
	border-radius: var(--pq-card-radius) !important;
	border: 1px solid rgba(31,45,61,.06);
	box-shadow: var(--pq-shadow-sm);
	transition: transform .2s ease, box-shadow .2s ease;
}
.x-card:hover {
	box-shadow: var(--pq-shadow-md);
}

/* 主按钮：品牌渐变 */
.btn-primary {
	background-image: var(--pq-primary-grad);
	border: 0;
	box-shadow: 0 4px 14px rgba(79,110,247,.25);
}
.btn-primary:hover {
	box-shadow: 0 6px 18px rgba(79,110,247,.35);
	transform: translateY(-1px);
}

/* 链接主色 */
a.link-primary, .text-primary { color: var(--pq-primary) !important; }

/* 表单控件聚焦 */
.form-control:focus, .form-select:focus {
	border-color: var(--pq-primary);
	box-shadow: 0 0 0 .2rem rgba(79,110,247,.15);
}

/* 徽章圆角统一 */
.badge { border-radius: 8px; }

/* 题干/选项内的 SVG 图形自适应 */
.pq-paper .pq-stem svg,
.pq-paper .pq-option svg,
.pq-print-question .pq-stem svg {
	max-width: 100%;
	height: auto;
}

/* 公式行内间距 */
.pq-stem .katex,
.pq-option .katex,
.pq-answer .katex {
	margin: 0 2px;
}

/* 块级公式居中 */
.pq-stem .katex-display {
	text-align: center;
	margin: 8px 0;
}

/* 答案区 */
.pq-answer-wrap {
	border-top-color: var(--border-color, #dee2e6);
}

/* 打印按钮在打印时隐藏 */
@media print {
	.btn, .header, .footer, .navbar, .sidebar { display: none !important; }
	.pq-paper .x-card { border: none; box-shadow: none; }
}

/* ============ 专题卷单页 · 试卷风格 ============ */
.pq-sheet {
	max-width: 820px;
	margin: 0 auto;
	background: #fff;
	border: 1px solid var(--border-color, #e3e8ef);
	border-radius: 6px;
	box-shadow: 0 2px 12px rgba(31, 45, 61, .06);
	padding: 22px 26px 26px;
}
.pq-sheet-head {
	text-align: center;
	padding-bottom: 14px;
	border-bottom: 2px solid #2c3e50;
	margin-bottom: 20px;
}
.pq-sheet-head .pq-sheet-title {
	font-size: 1.5rem;
	font-weight: 700;
	color: #1f2d3d;
	letter-spacing: .5px;
	margin-bottom: 4px;
}
.pq-sheet-head .pq-sheet-subtitle {
	font-size: .95rem;
	color: #4b5a6a;
	margin-bottom: 8px;
}
.pq-sheet-head .pq-sheet-meta {
	font-size: .82rem;
	color: #7a8794;
	display: flex;
	justify-content: center;
	flex-wrap: wrap;
	gap: 4px 14px;
}
.pq-sheet-head .pq-sheet-meta b { color: #2c3e50; }
.pq-sheet-body {
	position: relative;
}
.pq-sheet-q {
	padding: 16px 4px 18px;
	border-bottom: 1px dashed #e2e8f0;
}
.pq-sheet-q:last-child { border-bottom: none; }
.pq-sheet-qhead {
	display: flex;
	align-items: baseline;
	gap: 8px;
	margin-bottom: 6px;
	font-size: .95rem;
}
.pq-sheet-qno {
	font-weight: 700;
	color: #2c3e50;
	min-width: 22px;
}
.pq-sheet-qscore {
	color: #7a8794;
	font-size: .8rem;
	margin-left: auto;
	flex-shrink: 0;
}
.pq-sheet-qcode {
	font-size: .72rem;
	color: #a3adb8;
	background: #f5f7fa;
	border-radius: 3px;
	padding: 1px 6px;
}
.pq-sheet .pq-stem { font-size: 1rem; color: #24292f; line-height: 1.7; }
.pq-sheet .pq-options { margin-top: 8px; }

/* JSXGraph 几何图形容器 */
.pq-fig { width: 100%; max-width: 480px; min-height: 180px; margin: 6px auto; display: block; }
.pq-fig .jxgbox { border: 1px solid #e3e8ef; border-radius: 4px; background: #fff; }
.pq-fig svg, .pq-fig canvas { display: block; }
.pq-sheet .pq-option {
	padding: 4px 10px;
	font-size: .95rem;
	line-height: 1.6;
}
.pq-sheet .pq-option-text { color: #333; }
.pq-sheet-answer {
	margin-top: 10px;
	padding: 10px 12px;
	background: #f8fafc;
	border-left: 3px solid #10b981;
	border-radius: 4px;
	font-size: .92rem;
}
.pq-sheet-answer .pq-answer-label { font-weight: 700; color: #0f9d6e; margin-bottom: 4px; }
.pq-sheet-footer {
	margin-top: 22px;
	padding-top: 12px;
	border-top: 1px solid #e2e8f0;
	text-align: center;
	font-size: .78rem;
	color: #a3adb8;
}
@media (max-width: 575.98px) {
	.pq-sheet { padding: 14px 14px 18px; }
	.pq-sheet-head .pq-sheet-title { font-size: 1.2rem; }
}