/* ========================================
   基金从业资格刷题网站 - 浅色仪表板风格
   白底 + 蓝色强调色
   ======================================== */

*, .quiz-area .question * { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg: #f7f8fc;
  --card: #ffffff;
  --border: #e2e6ef;
  --border-light: #eef1f6;
  --text: #1a202c;
  --text-secondary: #64748b;
  --text-muted: #94a3b8;
  --primary: #2563eb;
  --primary-hover: #1d4ed8;
  --primary-light: #eff4ff;
  --primary-bg: #dbeafe;
  --success: #16a34a;
  --success-light: #dcfce7;
  --danger: #dc2626;
  --danger-light: #fee2e2;
  --warning: #d97706;
  --warning-light: #fef3c7;
  --orange: #ea580c;
  --orange-light: #fff7ed;
  --teal: #0d9488;
  --teal-light: #f0fdfa;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.06);
  --shadow: 0 4px 12px rgba(0,0,0,0.06);
  --shadow-lg: 0 12px 40px rgba(0,0,0,0.08);
  --radius: 12px;
  --radius-sm: 8px;
  --radius-lg: 16px;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Segoe UI", sans-serif;
  background: var(--bg);
  min-height: 100vh;
  padding: 0;
  color: var(--text);
  line-height: 1.6;
}

/* ---- 首页 ---- */
.container {
  max-width: 960px;
  margin: 0 auto;
  padding: 48px 24px;
}

header {
  text-align: center;
  margin-bottom: 48px;
}
header h1 {
  font-size: 32px;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 8px;
  letter-spacing: -0.02em;
}
header p {
  font-size: 15px;
  color: var(--text-secondary);
}

/* ---- 科目卡片 ---- */
.cards {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 20px;
}

.card {
  background: var(--card);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  border: 1px solid var(--border-light);
  padding: 32px 24px;
  text-align: center;
  cursor: pointer;
  transition: all 0.25s ease;
  text-decoration: none;
  color: inherit;
  position: relative;
  overflow: hidden;
}
.card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 4px;
  transition: height 0.25s;
}
.card-law::before    { background: linear-gradient(90deg, #2563eb, #3b82f6); }
.card-base::before   { background: linear-gradient(90deg, #ea580c, #f97316); }
.card-private::before { background: linear-gradient(90deg, #0d9488, #14b8a6); }

.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: transparent;
}
.card:hover::before { height: 6px; }

.card-icon { font-size: 48px; margin-bottom: 16px; display: block; }
.card h2 { font-size: 17px; font-weight: 700; margin-bottom: 8px; }
.card-law h2    { color: var(--primary); }
.card-base h2   { color: var(--orange); }
.card-private h2 { color: var(--teal); }
.card p { font-size: 13px; color: var(--text-secondary); line-height: 1.6; margin-bottom: 14px; }

.badge {
  display: inline-block;
  padding: 4px 12px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 600;
}
.card-law .badge    { background: var(--primary-light); color: var(--primary); }
.card-base .badge   { background: var(--orange-light); color: var(--orange); }
.card-private .badge { background: var(--teal-light); color: var(--teal); }

.stats-row {
  display: flex;
  justify-content: center;
  gap: 24px;
  margin-top: 14px;
  padding-top: 14px;
  border-top: 1px solid var(--border-light);
}
.stat { text-align: center; }
.stat-num { font-size: 22px; font-weight: 800; display: block; }
.card-law .stat-num    { color: var(--primary); }
.card-base .stat-num   { color: var(--orange); }
.card-private .stat-num { color: var(--teal); }
.stat-label { font-size: 11px; color: var(--text-muted); margin-top: 2px; }

/* ---- 练习页整体容器 ---- */
.app-container {
  max-width: 960px;
  margin: 0 auto;
  background: var(--card);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
  margin-top: 24px;
  margin-bottom: 24px;
}

/* ---- 练习页头部 ---- */
.app-header {
  background: linear-gradient(135deg, #2563eb 0%, #1e40af 100%);
  color: #fff;
  padding: 32px 30px;
  position: relative;
}
.app-header h1 { font-size: 24px; font-weight: 700; margin-bottom: 4px; }
.app-header p  { opacity: 0.85; font-size: 14px; }

.home-btn {
  position: absolute;
  top: 20px; left: 24px;
  color: #fff;
  text-decoration: none;
  font-size: 13px;
  padding: 6px 14px;
  border: 1.5px solid rgba(255,255,255,0.4);
  border-radius: var(--radius-sm);
  transition: all 0.2s;
  background: rgba(255,255,255,0.1);
}
.home-btn:hover { background: rgba(255,255,255,0.2); border-color: #fff; }

/* ---- 控制栏 ---- */
.controls {
  padding: 16px 24px;
  background: var(--bg);
  border-bottom: 1px solid var(--border);
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
}
.controls label { font-size: 13px; color: var(--text-secondary); font-weight: 600; }

select, button {
  padding: 7px 14px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  font-size: 13px;
  background: var(--card);
  cursor: pointer;
  transition: all 0.2s;
  color: var(--text);
}
button.primary {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
  font-weight: 600;
}
button.primary:hover { background: var(--primary-hover); }
button:hover:not(:disabled) { background: #f5f6fa; }

.jump-group { display: flex; align-items: center; gap: 4px; margin-left: 4px; }
.jump-group input {
  width: 56px;
  padding: 6px 8px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  font-size: 13px;
  text-align: center;
}
.jump-group input:focus { outline: none; border-color: var(--primary); box-shadow: 0 0 0 3px rgba(37,99,235,0.1); }
.jump-group button { padding: 6px 10px; font-size: 13px; }

.stats { margin-left: auto; font-size: 13px; color: var(--text-secondary); }
.stats span { font-weight: 700; color: var(--primary); }

/* ---- 进度条 ---- */
.progress-bar {
  height: 4px;
  background: var(--border);
  overflow: hidden;
}
.progress-fill {
  height: 100%;
  background: linear-gradient(90deg, #2563eb, #60a5fa);
  transition: width 0.3s;
}

/* ---- 题目区域 ---- */
.quiz-area { padding: 32px; min-height: 400px; }

.question-meta {
  display: flex;
  justify-content: space-between;
  margin-bottom: 16px;
  font-size: 13px;
  color: var(--text-muted);
}
.q-type-tag {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 12px;
  font-size: 12px;
  font-weight: 600;
}
.tag-single { background: var(--primary-light); color: var(--primary); }
.tag-multi  { background: var(--orange-light); color: var(--orange); }
.tag-tf     { background: var(--success-light); color: var(--success); }

.question { font-size: 17px; line-height: 1.8; margin-bottom: 24px; font-weight: 500; color: var(--text); }

.options { display: flex; flex-direction: column; gap: 10px; }
.option {
  padding: 14px 16px;
  border: 1.5px solid var(--border);
  border-radius: var(--radius);
  cursor: pointer;
  transition: all 0.2s;
  font-size: 15px;
  line-height: 1.5;
  user-select: none;
  background: var(--card);
}
.option:hover:not(.disabled) {
  border-color: var(--primary);
  background: var(--primary-light);
}
.option.selected {
  border-color: var(--primary);
  background: var(--primary-light);
  box-shadow: 0 0 0 3px rgba(37,99,235,0.08);
}
.option.correct {
  border-color: var(--success);
  background: var(--success-light);
  color: #166534;
}
.option.wrong {
  border-color: var(--danger);
  background: var(--danger-light);
  color: #991b1b;
}
.option.disabled { cursor: default; }

.option-letter {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 26px; height: 26px;
  background: var(--bg);
  border-radius: 50%;
  margin-right: 12px;
  font-weight: 700;
  font-size: 12px;
  color: var(--text-secondary);
  flex-shrink: 0;
  vertical-align: middle;
}
.option.selected .option-letter { background: var(--primary); color: #fff; }
.option.correct .option-letter  { background: var(--success); color: #fff; }
.option.wrong .option-letter    { background: var(--danger); color: #fff; }

/* ---- 操作按钮区 ---- */
.actions { margin-top: 28px; display: flex; gap: 10px; justify-content: space-between; }
.actions-right { display: flex; gap: 10px; }

/* ---- 解析区 ---- */
.explanation {
  margin-top: 20px;
  padding: 16px 20px;
  background: #fffef5;
  border-left: 4px solid #eab308;
  border-radius: var(--radius-sm);
  font-size: 14px;
  line-height: 1.7;
  display: none;
}
.explanation.show { display: block; }
.explanation strong { color: #92400e; }

/* ---- 结果页 ---- */
.result-box { text-align: center; padding: 48px 20px; }
.result-box h2 { font-size: 24px; font-weight: 700; margin-bottom: 12px; color: var(--primary); }
.result-box .score {
  font-size: 52px;
  font-weight: 800;
  color: var(--success);
  margin: 20px 0;
}

/* ---- 底部栏 ---- */
.footer {
  padding: 14px 24px;
  background: var(--bg);
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
}
.footer-left a {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 13px;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: color 0.2s;
}
.footer-left a:hover { color: var(--primary); }
.gh-icon { width: 16px; height: 16px; vertical-align: middle; }

.star-btn {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 4px 10px;
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: 12px;
  color: var(--text-secondary);
  text-decoration: none;
  margin-left: 10px;
  transition: all 0.2s;
}
.star-btn:hover { background: var(--warning-light); border-color: var(--warning); color: var(--warning); }

.footer-right { display: flex; gap: 6px; flex-wrap: wrap; }
.footer-right button { padding: 5px 12px; font-size: 12px; border-radius: 6px; }

.save-indicator {
  font-size: 12px;
  color: var(--success);
  opacity: 0;
  transition: opacity 0.3s;
  margin-left: 8px;
}
.save-indicator.show { opacity: 1; }

/* ---- 响应式 ---- */
@media (max-width: 768px) {
  .cards { grid-template-columns: 1fr; }
  header h1 { font-size: 24px; }
  .card { padding: 24px 20px; }
  .card-icon { font-size: 40px; }
  .card h2 { font-size: 16px; }
  .quiz-area { padding: 20px; }
  .controls { padding: 12px 16px; }
  .stats { width: 100%; margin-left: 0; }
  .app-header h1 { font-size: 18px; }
  .app-header { padding: 24px 20px; }
  .footer { padding: 10px 16px; }
  .footer-right button { font-size: 11px; padding: 4px 8px; }
  .container { padding: 24px 16px; }
}

@media (max-width: 480px) {
  body { padding: 0; }
  .container { padding: 16px 12px; }
  .app-container { border-radius: 0; margin: 8px; }
  .controls { gap: 8px; }
  .jump-group { display: none; }
}