body{background:#fff}.migration-header,.migration-footer,main{max-width:1120px;margin:auto;padding:20px}.migration-header{display:flex;align-items:center;justify-content:space-between;gap:20px}.migration-header nav{display:flex;gap:18px}.migration-article{max-width:800px;margin:32px auto}.migration-article h1{font-size:clamp(1.7rem,4vw,2.6rem);line-height:1.15;overflow-wrap:anywhere}.preview-notice,.archive-note{padding:14px 18px;background:#f1f6fb;border-left:4px solid #1766a6}.source-history{padding:12px}.prose img{max-width:100%;height:auto}img{max-width:100%}a{overflow-wrap:anywhere}.batch-list li{margin:16px 0}@media(max-width:600px){.migration-header{align-items:flex-start;flex-direction:column}.migration-header img{width:200px;height:auto}main{padding:16px}.migration-article{margin:24px 0}}