* { margin: 0; padding: 0; box-sizing: border-box; }
body { font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif; color: #333; line-height: 1.7; background: #f5f7fa; }
.container { max-width: 960px; margin: 0 auto; padding: 20px; }
 
.article { background: #fff; border-radius: 12px; padding: 32px; box-shadow: 0 2px 12px rgba(0,0,0,0.06); }
h1 { font-size: 28px; color: #1e293b; margin-bottom: 8px; line-height: 1.4; }
.meta { font-size: 13px; color: #94a3b8; margin-bottom: 28px; padding-bottom: 16px; border-bottom: 1px solid #e2e8f0; }
h2 { font-size: 22px; color: #1e293b; margin: 32px 0 16px; padding-left: 12px; border-left: 4px solid #2563eb; }
h3 { font-size: 18px; color: #334155; margin: 20px 0 12px; }
p { margin-bottom: 14px; font-size: 16px; color: #475569; }
.kpi-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; margin: 24px 0; }
.kpi-card { background: linear-gradient(135deg, #eff6ff 0%, #dbeafe 100%); border-radius: 10px; padding: 20px 16px; text-align: center; }
.kpi-value { font-size: 26px; font-weight: 700; color: #1d4ed8; margin-bottom: 4px; }
.kpi-label { font-size: 13px; color: #64748b; }
.compare-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 16px;
    margin: 20px 0;
}
.compare-card { background: #f8fafc; border-radius: 10px; padding: 20px; border: 1px solid #e2e8f0; }
.compare-card h3 { font-size: 15px; color: #1e293b; margin-bottom: 10px; }
.compare-card .price { font-size: 22px; font-weight: 700; color: #dc2626; margin-bottom: 6px; }
.compare-card p { font-size: 14px; color: #64748b; margin-bottom: 0; }
.stage-card { background: #fff; border: 1px solid #e2e8f0; border-radius: 10px; padding: 20px; margin-bottom: 12px; }
.stage-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 10px; }
.stage-title { font-size: 17px; font-weight: 600; color: #1e293b; }
.stage-count { background: #dbeafe; color: #1d4ed8; padding: 2px 10px; border-radius: 12px; font-size: 13px; font-weight: 600; }
.stage-desc { font-size: 14px; color: #64748b; line-height: 1.6; }
table { width: 100%; border-collapse: collapse; margin: 20px 0; font-size: 14px; }
th { background: #f1f5f9; color: #475569; font-weight: 600; padding: 12px; text-align: left; border-bottom: 2px solid #e2e8f0; }
td { padding: 12px; border-bottom: 1px solid #f1f5f9; color: #475569; }
tr:hover td { background: #f8fafc; }
.tip-box { background: #fef3c7; border-left: 4px solid #f59e0b; padding: 16px 20px; border-radius: 0 8px 8px 0; margin: 24px 0; }
.tip-box p { margin-bottom: 0; font-size: 14px; color: #92400e; }
.faq-item { margin-bottom: 16px; padding-bottom: 16px; border-bottom: 1px solid #f1f5f9; }
.faq-q { font-weight: 600; color: #1e293b; margin-bottom: 8px; font-size: 15px; }
.faq-a { font-size: 14px; color: #64748b; line-height: 1.7; }
.cta-box { background: linear-gradient(135deg, #2563eb 0%, #1d4ed8 100%); border-radius: 12px; padding: 28px; text-align: center; margin: 32px 0; color: #fff; }
.cta-box h2 { color: #fff; margin-bottom: 10px; font-size: 20px; }
.cta-box p { color: rgba(255,255,255,0.9); margin-bottom: 16px; }
.cta-btn { display: inline-block; background: #fff; color: #1d4ed8; padding: 12px 32px; border-radius: 8px; text-decoration: none; font-weight: 600; font-size: 16px; }
.related { margin-top: 32px; padding-top: 24px; border-top: 1px solid #e2e8f0; }
.related h2 { font-size: 16px; color: #64748b; margin-bottom: 12px; }
.related-links { display: flex; flex-wrap: wrap; gap: 10px; }
.related-links a { background: #f1f5f9; color: #475569; padding: 6px 14px; border-radius: 6px; text-decoration: none; font-size: 14px; }
.related-links a:hover { background: #e2e8f0; color: #2563eb; }
.data-source { font-size: 12px; color: #94a3b8; margin: 20px auto 40px ; padding-top: 16px; border-top: 1px dashed #e2e8f0; line-height: 1.6; }
@media (max-width: 768px) {
  .container { padding: 12px; }
  .article { padding: 20px 16px; }
  h1 { font-size: 22px; }
  .kpi-grid { grid-template-columns: repeat(2, 1fr); gap: 10px; }
  .compare-grid { grid-template-columns: 1fr; }
  table { font-size: 13px; }
  th, td { padding: 8px 6px; }
}