/* ==========================================================================
   pages.css — 各页面专属样式：配置 / 答题 / 结果 / 错题本
   ========================================================================== */

/* ---------- 页面标题 ---------- */
.page-head { margin-bottom: 22px; }
.page-head p { color: var(--muted); margin: 7px 0 0; font-size: 14px; }

/* ==========================================================================
   配置页 Setup
   ========================================================================== */
.setup-wrap { display: grid; grid-template-columns: 1fr 320px; gap: 20px; align-items: start; }
@media (max-width: 900px) { .setup-wrap { grid-template-columns: 1fr; } }

/* ---- 模块卡片：六个模块各配一个墨色色相 ---- */
.module-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  gap: 12px;
}
.module-card {
  position: relative;
  padding: 15px 14px 15px 17px;
  border: 1.5px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
  cursor: pointer;
  transition: border-color 0.15s, background 0.15s, box-shadow 0.15s, transform 0.15s;
  overflow: hidden;
  --mc: var(--primary);
  --mc-soft: var(--primary-soft);
}
.module-card::before {
  content: "";
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: 3px;
  background: var(--mc);
  opacity: 0;
  transition: opacity 0.15s;
}
.module-card:hover { border-color: var(--mc); transform: translateY(-2px); box-shadow: var(--shadow); }
.module-card:hover::before { opacity: 1; }
.module-card.selected { border-color: var(--mc); background: var(--mc-soft); }
.module-card.selected::before { opacity: 1; }

.module-card .mc-code { font-size: 12px; font-weight: 800; color: var(--mc); letter-spacing: 0.06em; }
.module-card .mc-name { font-family: var(--font-serif); font-size: 15.5px; font-weight: 700; margin: 3px 0 6px; }
.module-card .mc-count { font-size: 12px; color: var(--muted); }
.module-card .mc-check {
  position: absolute; top: 10px; right: 10px;
  width: 20px; height: 20px; border-radius: 50%;
  border: 1.5px solid var(--border-strong);
  display: grid; place-items: center; font-size: 12px; color: transparent;
  transition: background 0.15s, border-color 0.15s, color 0.15s;
}
.module-card.selected .mc-check {
  background: var(--mc);
  border-color: var(--mc);
  color: var(--on-primary);
}

/* 模块色相（纸墨六色：钢笔蓝 / 青碧 / 竹绿 / 赭黄 / 紫檀 / 朱红） */
.module-grid .module-card:nth-child(6n + 1) { --mc: #1b4f8f; --mc-soft: #e9eef5; }
.module-grid .module-card:nth-child(6n + 2) { --mc: #1f6f6b; --mc-soft: #e6f0ef; }
.module-grid .module-card:nth-child(6n + 3) { --mc: #2f7d4f; --mc-soft: #e8f2ec; }
.module-grid .module-card:nth-child(6n + 4) { --mc: #a9761a; --mc-soft: #f7f0e0; }
.module-grid .module-card:nth-child(6n + 5) { --mc: #6b4c8a; --mc-soft: #eeeaf4; }
.module-grid .module-card:nth-child(6n + 6) { --mc: #b5342a; --mc-soft: #f9eae8; }

[data-theme="dark"] .module-grid .module-card:nth-child(6n + 1) { --mc: #7fa9de; --mc-soft: rgba(127,169,222,.13); }
[data-theme="dark"] .module-grid .module-card:nth-child(6n + 2) { --mc: #6cbcb6; --mc-soft: rgba(108,188,182,.13); }
[data-theme="dark"] .module-grid .module-card:nth-child(6n + 3) { --mc: #6cbf8c; --mc-soft: rgba(108,191,140,.13); }
[data-theme="dark"] .module-grid .module-card:nth-child(6n + 4) { --mc: #d9a441; --mc-soft: rgba(217,164,65,.13); }
[data-theme="dark"] .module-grid .module-card:nth-child(6n + 5) { --mc: #a98cc9; --mc-soft: rgba(169,140,201,.13); }
[data-theme="dark"] .module-grid .module-card:nth-child(6n + 6) { --mc: #e8735f; --mc-soft: rgba(232,115,95,.13); }

.inline-fields { display: flex; flex-wrap: wrap; gap: 16px; }
.inline-fields .field { flex: 1; min-width: 140px; margin-bottom: 0; }

.scroll-box {
  max-height: 190px; overflow: auto;
  border: 1px solid var(--border); border-radius: var(--radius-sm);
  padding: 12px; background: var(--surface-2);
}
.kp-module-label {
  font-family: var(--font-serif);
  font-size: 13px; font-weight: 700; color: var(--text-soft);
  margin: 10px 0 6px;
}
.kp-module-label:first-child { margin-top: 0; }

/* 侧边汇总卡（吸顶） */
.summary-card { position: sticky; top: calc(var(--header-h) + 20px); }
.summary-row {
  display: flex; justify-content: space-between; gap: 12px;
  font-size: 13.5px; padding: 7px 0; color: var(--text-soft);
}
.summary-row b { font-weight: 700; text-align: right; }
.summary-total {
  font-size: 13px; color: var(--muted); text-align: center;
  margin: 14px 0 12px; padding-top: 12px;
  border-top: 1px dashed var(--border-strong);
}
.summary-total b { color: var(--primary); font-size: 19px; }

.switch-row { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.switch { position: relative; width: 44px; height: 24px; flex: none; }
.switch input { opacity: 0; width: 0; height: 0; }
.switch .slider {
  position: absolute; inset: 0; border-radius: 999px; background: var(--border-strong);
  transition: 0.2s; cursor: pointer;
}
.switch .slider::before {
  content: ''; position: absolute; width: 18px; height: 18px; left: 3px; top: 3px;
  border-radius: 50%; background: var(--surface); transition: 0.2s;
  box-shadow: var(--shadow-sm);
}
.switch input:checked + .slider { background: var(--primary); }
.switch input:checked + .slider::before { transform: translateX(20px); }

/* ==========================================================================
   题目内容渲染（题干 / 材料 / 选项 / 解析中的 HTML）
   题目文字用衬线，贴近真题卷面
   ========================================================================== */
.q-content {
  font-family: var(--font-serif);
  font-size: 16px;
  line-height: 1.9;
  color: var(--text);
  word-break: break-word;
}
.q-content p { margin: 0 0 8px; }
.q-content p:last-child { margin-bottom: 0; }
.q-content img {
  max-width: 100%; height: auto; vertical-align: middle; margin: 6px 0;
  border-radius: var(--radius-sm);
  /* 真题图为白底扫描图，在深色下也保持纸片感 */
  background: #fff;
  padding: 3px;
  border: 1px solid var(--border);
}
.q-content sub, .q-content sup { font-size: 0.75em; }
.q-content table { border-collapse: collapse; }
.q-content td, .q-content th { border: 1px solid var(--border); padding: 4px 8px; }

/* 材料框：纸面 + 左侧装订线 */
.material-box {
  position: relative;
  border: 1px solid var(--border);
  background: var(--paper);
  border-radius: var(--radius-sm);
  padding: 15px 16px 15px 22px;
  margin-bottom: 18px;
  max-height: 320px;
  overflow: auto;
}
.material-box::before {
  content: "";
  position: absolute;
  left: 10px; top: 0; bottom: 0;
  width: 1px;
  background: var(--border-strong);
}
.material-label {
  display: inline-flex; align-items: center; gap: 5px;
  font-family: var(--font);
  font-size: 11.5px; font-weight: 800; color: var(--primary);
  letter-spacing: 0.14em; margin-bottom: 10px;
}
.analysis-box {
  position: relative;
  margin-top: 14px; padding: 15px 16px 15px 22px;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
}
.analysis-box::before {
  content: "";
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: 3px;
  background: var(--accent);
  border-radius: var(--radius-sm) 0 0 var(--radius-sm);
}
.analysis-label {
  font-family: var(--font);
  font-weight: 800; color: var(--warning); font-size: 12px;
  letter-spacing: 0.1em; margin-bottom: 8px;
}

/* ==========================================================================
   答题页 Quiz
   ========================================================================== */
.quiz-topbar {
  position: sticky; top: var(--header-h); z-index: 20;
  display: flex; align-items: center; gap: 16px;
  padding: 12px 18px; margin-bottom: 18px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-top: 3px solid var(--primary);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
}
.quiz-progress-text { font-size: 14px; font-weight: 600; white-space: nowrap; }
.quiz-progress-text .cur { color: var(--primary); font-size: 19px; font-family: var(--font-serif); }
.quiz-topbar .progress { flex: 1; min-width: 60px; }

.timer {
  display: flex; align-items: center; gap: 6px;
  font-variant-numeric: tabular-nums; font-weight: 800; font-size: 17px;
  padding: 5px 12px; border-radius: var(--radius-sm);
  background: var(--surface-2); color: var(--text-soft); white-space: nowrap;
}
.timer.warning { background: var(--warning-soft); color: var(--warning); }
.timer.danger { background: var(--danger-soft); color: var(--danger); animation: pulse 1s infinite; }
@keyframes pulse { 50% { opacity: 0.6; } }

.quiz-layout { display: grid; grid-template-columns: 1fr 250px; gap: 20px; align-items: start; }
@media (max-width: 900px) { .quiz-layout { grid-template-columns: 1fr; } }

.question-card { padding: 24px 26px; }
.q-meta { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 16px; }
.stem { margin-bottom: 20px; padding-left: 13px; border-left: 2px solid var(--border-strong); }

/* ---- 选项：悬停左侧色条 + 轻微位移 ---- */
.options { display: flex; flex-direction: column; gap: 11px; }
.option {
  position: relative;
  display: flex; gap: 12px; align-items: flex-start;
  padding: 12px 16px 12px 18px;
  border: 1.5px solid var(--border);
  border-radius: var(--radius);
  cursor: pointer;
  background: var(--surface);
  overflow: hidden;
  transition: border-color 0.14s, background 0.14s, transform 0.14s, box-shadow 0.14s;
}
.option::before {
  content: "";
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: 3px;
  background: var(--primary);
  transform: scaleY(0);
  transition: transform 0.16s ease;
}
.option:hover {
  border-color: var(--primary);
  background: var(--primary-soft);
  transform: translateX(2px);
  box-shadow: var(--shadow-sm);
}
.option:hover::before { transform: scaleY(1); }
.option.selected { border-color: var(--primary); background: var(--primary-soft); }
.option.selected::before { transform: scaleY(1); }
.option-key {
  flex: none; width: 27px; height: 27px; border-radius: 50%;
  display: grid; place-items: center; font-weight: 800; font-size: 13px;
  border: 1.5px solid var(--border-strong); color: var(--muted); background: var(--surface);
  transition: background 0.14s, border-color 0.14s, color 0.14s;
}
.option.multi .option-key { border-radius: 7px; }
.option.selected .option-key { background: var(--primary); border-color: var(--primary); color: var(--on-primary); }
.option-body { flex: 1; min-width: 0; }

/* 回顾态（结果页 / 错题本） */
.option.review { cursor: default; }
.option.review:hover { border-color: var(--border); background: var(--surface); transform: none; box-shadow: none; }
.option.review:hover::before { transform: scaleY(0); }
.option.correct { border-color: var(--success) !important; background: var(--success-soft) !important; }
.option.correct::before { background: var(--success); transform: scaleY(1); }
.option.correct .option-key { background: var(--success); border-color: var(--success); color: var(--on-success); }
.option.wrong { border-color: var(--danger) !important; background: var(--danger-soft) !important; }
.option.wrong::before { background: var(--danger); transform: scaleY(1); }
.option.wrong .option-key { background: var(--danger); border-color: var(--danger); color: var(--on-danger); }

.option-tag {
  display: inline-block;
  font-family: var(--font);
  font-size: 11px; font-weight: 800; letter-spacing: 0.08em;
  padding: 1px 7px; border-radius: 999px; margin-left: 8px;
}
.option-tag.yours { background: var(--danger); color: var(--on-danger); }
.option-tag.right { background: var(--success); color: var(--on-success); }

.quiz-nav { display: flex; gap: 12px; margin-top: 22px; }
.quiz-nav .btn { flex: 1; }

/* ---- 侧栏答题卡 ---- */
.quiz-sidebar .card { padding: 16px; }
.sidebar-title {
  font-family: var(--font-serif);
  font-size: 14px; font-weight: 700; color: var(--text-soft);
  margin-bottom: 12px;
}
.palette { display: grid; grid-template-columns: repeat(auto-fill, minmax(36px, 1fr)); gap: 8px; }
.palette-cell {
  position: relative;
  aspect-ratio: 1;
  border-radius: 8px;
  border: 1.5px solid var(--border);
  display: grid; place-items: center;
  font-size: 13px; font-weight: 700;
  cursor: pointer; background: var(--surface); color: var(--muted);
  transition: border-color 0.12s, background 0.12s, color 0.12s, box-shadow 0.12s, transform 0.12s;
}
.palette-cell:hover { border-color: var(--primary); color: var(--primary); transform: translateY(-1px); }
.palette-cell.answered { background: var(--primary-soft); border-color: var(--primary-hi); color: var(--primary-dark); }
.palette-cell.current {
  border-color: var(--primary);
  background: var(--primary);
  color: var(--on-primary);
  box-shadow: 0 0 0 3px var(--primary-soft);
  font-weight: 800;
}
.palette-cell.marked::after {
  content: '★';
  position: absolute; top: -4px; right: 0;
  font-size: 11px; color: var(--accent);
  text-shadow: 0 0 2px var(--surface);
}
.palette-legend { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 14px; font-size: 11.5px; color: var(--muted); }
.palette-legend span { display: flex; align-items: center; gap: 4px; }
.legend-dot { width: 11px; height: 11px; border-radius: 3px; border: 1.5px solid var(--border); }
.legend-dot.answered { background: var(--primary-soft); border-color: var(--primary-hi); }
.legend-dot.current { background: var(--primary); border-color: var(--primary); }

.fav-btn.active { color: var(--accent); border-color: var(--accent); background: var(--accent-soft); }

/* ==========================================================================
   结果页 Result
   ========================================================================== */
.result-hero { display: flex; align-items: center; gap: 34px; padding: 30px; flex-wrap: wrap; }

/* 正确率环形：改为渐变笔画 */
.accuracy-ring {
  --pct: 0;
  --ring-a: var(--primary-hi);
  --ring-b: var(--primary);
  width: 156px; height: 156px; border-radius: 50%; flex: none;
  background: conic-gradient(
    from -90deg,
    var(--ring-a) 0deg,
    var(--ring-b) calc(var(--pct) * 3.6deg),
    var(--track) calc(var(--pct) * 3.6deg)
  );
  display: grid; place-items: center; position: relative;
  box-shadow: var(--shadow-sm);
}
.accuracy-ring.good { --ring-a: var(--success); --ring-b: color-mix(in srgb, var(--success) 55%, var(--accent)); }
.accuracy-ring.mid { --ring-a: var(--warning); --ring-b: var(--accent); }
.accuracy-ring.bad { --ring-a: color-mix(in srgb, var(--danger) 70%, var(--accent)); --ring-b: var(--danger); }
.accuracy-ring::before {
  content: '';
  position: absolute; inset: 13px;
  background: var(--surface);
  border-radius: 50%;
  border: 1px solid var(--border);
}
.ring-value { position: relative; text-align: center; }
.ring-value .pct { font-family: var(--font-serif); font-size: 36px; font-weight: 800; line-height: 1; }
.ring-value .lbl { font-size: 12px; color: var(--muted); margin-top: 4px; }

.result-hero-text h2 { font-size: 23px; margin-bottom: 6px; }
.result-hero-text .verdict { color: var(--muted); font-size: 14px; }

.result-stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(110px, 1fr)); gap: 14px; margin-top: 20px; }
.stat-card {
  padding: 16px;
  border-radius: var(--radius);
  background: var(--surface-2);
  border: 1px solid var(--border);
  text-align: center;
}
.stat-value { font-family: var(--font-serif); font-size: 27px; font-weight: 800; line-height: 1.1; }
.stat-value.correct { color: var(--success); }
.stat-value.wrong { color: var(--danger); }
.stat-label { font-size: 12.5px; color: var(--muted); margin-top: 4px; }

.result-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; margin-top: 20px; }
@media (max-width: 800px) { .result-grid { grid-template-columns: 1fr; } }

.review-toolbar { display: flex; align-items: center; gap: 12px; margin: 26px 0 14px; flex-wrap: wrap; }
.review-list { display: flex; flex-direction: column; gap: 14px; }
.review-item { padding: 22px 24px; }
.review-item.wrong { border-left: 3px solid var(--danger); }
.review-item.correct { border-left: 3px solid var(--success); }
.review-head { display: flex; align-items: center; gap: 10px; margin-bottom: 14px; flex-wrap: wrap; }
.review-num { font-family: var(--font-serif); font-weight: 800; font-size: 16px; }
.answer-line { margin-top: 14px; font-size: 14px; display: flex; gap: 18px; flex-wrap: wrap; }
.answer-line .ans-item b { font-weight: 800; }
.answer-line .yours.right { color: var(--success); }
.answer-line .yours.wrong { color: var(--danger); }
.answer-line .right { color: var(--success); }

/* ==========================================================================
   错题本 / 收藏 Library
   ========================================================================== */
.lib-toolbar { display: flex; align-items: center; gap: 12px; margin-bottom: 16px; flex-wrap: wrap; }
.lib-list { display: flex; flex-direction: column; gap: 10px; }
.lib-item {
  position: relative;
  display: flex; align-items: center; gap: 14px;
  padding: 14px 18px 14px 20px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: box-shadow 0.15s, border-color 0.15s, transform 0.15s;
}
.lib-item::before {
  content: "";
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: 3px;
  background: var(--primary);
  opacity: 0;
  transition: opacity 0.15s;
}
.lib-item:hover { border-color: var(--primary); box-shadow: var(--shadow); transform: translateX(2px); }
.lib-item:hover::before { opacity: 1; }
.lib-main { flex: 1; min-width: 0; }
.lib-snippet {
  font-family: var(--font-serif);
  font-size: 14.5px; color: var(--text);
  overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}
.lib-meta { display: flex; gap: 8px; margin-top: 6px; flex-wrap: wrap; }
.lib-actions { display: flex; gap: 8px; flex: none; }
.wrong-count { font-size: 11px; color: var(--danger); font-weight: 800; }