/* ====================================
   职定行 · 专业蓝 主题样式表
   ==================================== */

/* --- Reset & Variables --- */
:root {
  --primary: #1a237e;
  --primary-light: #3949ab;
  --primary-dark: #0d1642;
  --accent: #2196f3;
  --accent-light: #bbdefb;
  --bg: #f5f7fa;
  --card-bg: #ffffff;
  --text: #212121;
  --text-secondary: #616161;
  --text-muted: #9e9e9e;
  --border: #e0e0e0;
  --success: #4caf50;
  --warning: #ff9800;
  --danger: #f44336;
  --radius: 8px;
  --radius-lg: 12px;
  --shadow: 0 2px 8px rgba(0,0,0,0.08);
  --shadow-lg: 0 4px 16px rgba(0,0,0,0.12);
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  min-height: 100vh;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

/* --- Header --- */
.header {
  background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 50%, var(--primary-light) 100%);
  color: #fff;
  padding: 14px 0;
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 2px 12px rgba(26,35,126,0.25);
}

.header-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 22px;
  font-weight: 700;
  color: #fff;
  text-decoration: none;
}
.logo:hover { text-decoration: none; }

.logo-icon {
  width: 36px;
  height: 36px;
  background: rgba(255,255,255,0.2);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
}

.nav-links { display: flex; gap: 4px; }
.nav-links a {
  color: rgba(255,255,255,0.75);
  padding: 8px 16px;
  border-radius: 6px;
  font-size: 14px;
  font-weight: 500;
  transition: all 0.2s;
  text-decoration: none;
}
.nav-links a:hover,
.nav-links a.active {
  color: #fff;
  background: rgba(255,255,255,0.15);
  text-decoration: none;
}

/* --- Container --- */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 24px 20px 40px;
}

/* --- Hero --- */
.hero {
  text-align: center;
  padding: 40px 20px 28px;
}
.hero h1 { font-size: 32px; font-weight: 700; color: var(--primary-dark); margin-bottom: 8px; }
.hero .accent { color: var(--accent); }
.hero p { font-size: 16px; color: var(--text-secondary); max-width: 560px; margin: 0 auto; }

/* --- Search --- */
.search-section { max-width: 640px; margin: 0 auto 24px; }
.search-bar { display: flex; gap: 8px; }
.search-bar input {
  flex: 1;
  padding: 12px 18px;
  border: 2px solid var(--border);
  border-radius: var(--radius-lg);
  font-size: 15px;
  outline: none;
  transition: border-color 0.2s;
  background: var(--card-bg);
  box-shadow: var(--shadow);
}
.search-bar input:focus { border-color: var(--primary-light); }
.search-bar button {
  padding: 12px 24px;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  color: #fff;
  border: none;
  border-radius: var(--radius-lg);
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  transition: opacity 0.2s;
  white-space: nowrap;
}
.search-bar button:hover { opacity: 0.9; }

/* --- Filter Tags --- */
.filter-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 20px;
  justify-content: center;
}

.filter-tag {
  padding: 6px 18px;
  border-radius: 20px;
  font-size: 13px;
  cursor: pointer;
  transition: all 0.2s;
  border: 1px solid var(--border);
  background: var(--card-bg);
  color: var(--text-secondary);
  font-weight: 500;
}
.filter-tag:hover { border-color: var(--primary-light); color: var(--primary-light); }
.filter-tag.active {
  background: var(--primary-light);
  color: #fff;
  border-color: var(--primary-light);
}

/* --- Stats Bar --- */
.stats-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 16px;
  padding: 0 4px;
}
.stats-count { font-size: 14px; color: var(--text-muted); }
.stats-count strong { color: var(--primary-light); }
.sort-select {
  padding: 6px 12px;
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: 13px;
  color: var(--text-secondary);
  background: var(--card-bg);
  outline: none;
  cursor: pointer;
}

/* --- Certificate Grid --- */
.cert-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 16px;
  margin-bottom: 24px;
}

.cert-card {
  background: var(--card-bg);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 20px;
  cursor: pointer;
  transition: all 0.2s;
  border: 1px solid var(--border);
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.cert-card:hover {
  box-shadow: var(--shadow-lg);
  border-color: var(--accent-light);
  transform: translateY(-2px);
}

.card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 8px;
}

.card-category {
  font-size: 12px;
  color: var(--primary-light);
  background: var(--accent-light);
  padding: 3px 10px;
  border-radius: 12px;
  font-weight: 600;
}

.card-level {
  font-size: 11px;
  padding: 3px 10px;
  border-radius: 12px;
  font-weight: 600;
}
.card-level.level-初级 { background: #e8f5e9; color: #2e7d32; }
.card-level.level-中级 { background: #fff3e0; color: #e65100; }
.card-level.level-高级 { background: #fce4ec; color: #c62828; }
.card-level.level-准入 { background: #e3f2fd; color: #1565c0; }

.card-title {
  font-size: 17px;
  font-weight: 700;
  color: var(--primary-dark);
  line-height: 1.3;
}

.exam-status-tag {
  display: inline-block;
  margin-left: 8px;
  font-size: 11px;
  font-weight: 500;
  padding: 2px 8px;
  border-radius: 6px;
  vertical-align: middle;
}
.exam-status-tag.status-warn { background: #fff3e0; color: #e65100; }
.exam-status-tag.status-muted { background: #f5f5f5; color: #757575; }

.card-subtitle {
  font-size: 13px;
  color: var(--text-muted);
}

.card-info {
  display: flex;
  gap: 16px;
  padding: 10px 0;
}

.card-info-item {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.card-info-label {
  font-size: 11px;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.3px;
}

.card-info-value {
  font-size: 13px;
  color: var(--text);
  font-weight: 500;
}

.card-arrow {
  position: absolute;
  right: 16px;
  bottom: 16px;
  color: var(--primary-light);
  font-size: 18px;
  font-weight: 700;
}

/* --- Pagination --- */
.pagination {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 4px;
  margin-top: 24px;
}
.page-btn {
  min-width: 36px;
  height: 36px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--card-bg);
  color: var(--text);
  font-size: 14px;
  cursor: pointer;
  transition: all 0.15s;
}
.page-btn:hover:not(:disabled) { border-color: var(--primary-light); color: var(--primary-light); }
.page-btn.active { background: var(--primary-light); color: #fff; border-color: var(--primary-light); }
.page-btn:disabled { opacity: 0.4; cursor: not-allowed; }

.page-info { padding: 0 8px; color: var(--text-muted); }

/* --- Loading / Empty --- */
.loading {
  grid-column: 1 / -1;
  text-align: center;
  padding: 60px 20px;
}
.loading-spinner {
  width: 36px;
  height: 36px;
  border: 3px solid var(--border);
  border-top-color: var(--primary-light);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
  margin: 0 auto 12px;
}
@keyframes spin { to { transform: rotate(360deg); } }
.loading p { color: var(--text-muted); font-size: 14px; }

.empty-state {
  grid-column: 1 / -1;
  text-align: center;
  padding: 60px 20px;
  color: var(--text-muted);
}
.empty-icon { font-size: 48px; margin-bottom: 12px; }
.empty-state h3 { font-size: 17px; color: var(--text-secondary); margin-bottom: 6px; }
.empty-state p { font-size: 14px; }

/* ========== Detail Page ========== */
.detail-main { max-width: 900px; margin: 0 auto 40px; }

.back-link {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  color: var(--primary-light);
  font-size: 14px;
  margin-bottom: 20px;
  text-decoration: none;
}
.back-link:hover { text-decoration: underline; }

.detail-hero {
  background: var(--card-bg);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  padding: 32px;
  margin-bottom: 24px;
  border-left: 4px solid var(--primary-light);
}

.detail-hero-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 16px;
}

.detail-title {
  font-size: 26px;
  font-weight: 700;
  color: var(--primary-dark);
  margin-bottom: 6px;
}

.detail-subtitle {
  font-size: 15px;
  color: var(--text-secondary);
  margin-bottom: 14px;
}

.detail-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 12px;
}

.detail-badge {
  display: inline-block;
  padding: 5px 14px;
  border-radius: 16px;
  font-size: 12px;
  font-weight: 600;
  background: var(--accent-light);
  color: var(--primary);
}
.detail-badge.level { background: #e3f2fd; color: #1565c0; }
.detail-badge.category { background: #e8f5e9; color: #2e7d32; }

.section-title {
  font-size: 18px;
  font-weight: 700;
  color: var(--primary-dark);
  margin: 28px 0 12px;
  padding-bottom: 8px;
  border-bottom: 2px solid var(--accent-light);
}

.info-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-bottom: 16px;
}

.info-card {
  background: var(--card-bg);
  border-radius: var(--radius);
  padding: 16px;
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
}

.info-card-label {
  font-size: 12px;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 4px;
}

.info-card-value {
  font-size: 15px;
  color: var(--text);
  font-weight: 500;
}

/* ========== Compare Page ========== */
.compare-hero {
  text-align: center;
  padding: 36px 20px 24px;
}
.compare-hero h1 { font-size: 28px; color: var(--primary-dark); margin-bottom: 8px; }
.compare-hero p { color: var(--text-secondary); }

.selectors {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  max-width: 900px;
  margin: 0 auto 24px;
}

.selector {
  background: var(--card-bg);
  border: 2px dashed var(--border);
  border-radius: var(--radius);
  padding: 20px;
  text-align: center;
  cursor: pointer;
  transition: all 0.2s;
  min-height: 120px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 8px;
}
.selector:hover { border-color: var(--primary-light); }
.selector.filled { border-style: solid; border-color: var(--primary-light); background: #f5f7ff; cursor: default; }
.selector-placeholder { color: var(--text-muted); font-size: 14px; }
.selector-name { font-size: 18px; font-weight: 600; color: var(--primary-dark); }
.selector-cat { font-size: 12px; color: var(--text-muted); }

.compare-table {
  max-width: 900px;
  margin: 0 auto 40px;
  background: var(--card-bg);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow: hidden;
}
.compare-table table { width: 100%; border-collapse: collapse; }
.compare-table th,
.compare-table td {
  padding: 14px 20px;
  text-align: left;
  border-bottom: 1px solid var(--border);
  font-size: 14px;
}
.compare-table th { background: var(--bg); font-weight: 600; color: var(--text-secondary); width: 140px; white-space: nowrap; }
.compare-table td { color: var(--text); }
.compare-table tr:last-child th,
.compare-table tr:last-child td { border-bottom: none; }

/* ========== AI Chat Page ========== */
.chat-container { max-width: 800px; margin: 0 auto; }
.chat-messages {
  background: var(--card-bg);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  padding: 24px;
  min-height: 400px;
  max-height: 60vh;
  overflow-y: auto;
  margin-bottom: 16px;
}
.chat-input-area { display: flex; gap: 8px; }
.chat-input-area textarea {
  flex: 1;
  padding: 12px 16px;
  border: 2px solid var(--border);
  border-radius: var(--radius-lg);
  font-size: 14px;
  resize: none;
  outline: none;
  font-family: var(--font);
}
.chat-input-area textarea:focus { border-color: var(--primary-light); }
.chat-input-area button {
  padding: 12px 20px;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  color: #fff;
  border: none;
  border-radius: var(--radius-lg);
  font-size: 16px;
  cursor: pointer;
}

/* ========== Footer ========== */
.footer {
  text-align: center;
  padding: 24px 20px;
  color: var(--text-muted);
  font-size: 13px;
  border-top: 1px solid var(--border);
}

.footer-beian {
  margin-top: 6px;
}

.footer-beian a {
  color: var(--text-muted);
  text-decoration: none;
}

.footer-beian a:hover {
  text-decoration: underline;
}

/* --- Toast --- */
.toast {
  position: fixed;
  bottom: 30px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--primary-dark);
  color: #fff;
  padding: 10px 24px;
  border-radius: 20px;
  font-size: 14px;
  z-index: 999;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s;
}
.toast.show { opacity: 1; }

/* ========== Responsive ========== */
@media (max-width: 768px) {
  .header-inner { flex-direction: column; gap: 10px; }
  .nav-links { flex-wrap: wrap; justify-content: center; }
  .hero { padding: 28px 16px 20px; }
  .hero h1 { font-size: 24px; }
  .cert-grid { grid-template-columns: 1fr; }
  .card-info { flex-direction: column; gap: 6px; }
  .selectors { grid-template-columns: 1fr; }
  .info-grid { grid-template-columns: 1fr; }
  .compare-table th, .compare-table td { padding: 10px 12px; font-size: 13px; }
  .detail-title { font-size: 22px; }
  .detail-hero { padding: 20px; }
}