*{box-sizing:border-box;margin:0;padding:0}
body{font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;background:#f5f5f3;color:#1a1a1a;line-height:1.7;font-size:15px}
.page{max-width:740px;margin:0 auto;padding:2.5rem 1.25rem}
.header{border-bottom:1px solid #e4e4e0;padding-bottom:1.5rem;margin-bottom:2rem}
.badge{display:inline-block;background:#efefec;border:1px solid #ddddd8;border-radius:6px;font-size:12px;color:#777;padding:3px 10px;margin-bottom:.875rem}
h1{font-size:26px;font-weight:600;color:#111;margin-bottom:.25rem}
.subtitle{font-size:14px;color:#888}
.toc{background:#f9f9f7;border:1px solid #e4e4e0;border-radius:10px;padding:1.25rem 1.5rem;margin-bottom:2.25rem}
.toc-label{font-size:11px;font-weight:600;text-transform:uppercase;letter-spacing:.07em;color:#aaa;margin-bottom:.75rem}
.toc-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(210px,1fr));gap:2px}
.toc-grid a{font-size:13px;color:#555;text-decoration:none;padding:5px 0;display:block}
.toc-grid a:hover{color:#111}
.section{margin-bottom:2.25rem}
.section-header{display:flex;align-items:center;gap:10px;margin-bottom:.75rem}
.sec-num{font-size:11px;font-weight:600;color:#999;background:#efefec;border:1px solid #e0e0db;border-radius:6px;padding:2px 8px}
.sec-title{font-size:16px;font-weight:600;color:#111}
.section p{color:#444;margin-bottom:.75rem}
.items{border:1px solid #e4e4e0;border-radius:10px;overflow:hidden;margin-top:.75rem}
.item{display:flex;align-items:flex-start;gap:10px;padding:.75rem 1rem;border-bottom:1px solid #efefec;font-size:14px;color:#555}
.item:last-child{border-bottom:none}
.item svg{width:15px;height:15px;flex-shrink:0;margin-top:2px}
.warning-box{background:#fef9ec;border:1px solid #f5dfa0;border-radius:8px;padding:.875rem 1rem;margin-top:.75rem;font-size:14px;color:#7a5c00;line-height:1.6}
.footer{border-top:1px solid #e4e4e0;margin-top:2.5rem;padding-top:1.5rem;display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:.75rem}
.footer-text{font-size:13px;color:#aaa}
.back-btn{font-size:13px;color:#555;background:none;border:1px solid #ddd;border-radius:6px;padding:6px 14px;cursor:pointer}
.back-btn:hover{background:#f0f0ed}
@media(max-width:540px){.toc-grid{grid-template-columns:1fr}}