.io-logic-page{--bg: #f5f7fb;--panel: #ffffff;--text: #1f2937;--muted: #6b7280;--line: #e5e7eb;--primary: #6d28d9;--primary-soft: #f3e8ff;--shadow: 0 10px 28px rgba(17, 24, 39, 0.08);--radius: 18px;background:var(--bg);color:var(--text);min-height:100vh}.io-logic-shell{max-width:1500px;margin:0 auto;padding:18px}.io-logic-card{background:var(--panel);border:1px solid rgba(229,231,235,0.9);border-radius:var(--radius);box-shadow:var(--shadow)}.io-logic-hero{padding:22px 24px;margin-bottom:16px;background:#ffffff;border:1px solid rgba(229,231,235,0.9)}.io-logic-hero-head{min-width:0}.io-logic-page .io-logic-hero .cm-title-wrap{display:flex;align-items:center;gap:16px;min-width:0;width:100%}.io-logic-page .io-logic-hero .cm-title-wrap>a.cm-back-link+div{min-width:0;flex:1 1 auto}.io-logic-page .cm-back-link{display:inline-flex;align-items:center;justify-content:center;width:38px;height:38px;border-radius:12px;border:1px solid #e5e7eb;background:#fff;text-decoration:none;color:#1f2937;font-size:18px;font-weight:700;flex-shrink:0}.io-logic-page .cm-back-link:hover{background:#f9fafb;color:#1f2937}.io-logic-hero-title{margin:0;padding:0;font-size:26px;font-weight:800;line-height:1.2;min-width:0}.io-logic-hero-copy{margin:4px 0 0;padding:0;color:var(--muted);font-size:14px;line-height:1.5;max-width:760px}.io-logic-card-section{padding:20px;margin-bottom:16px}.io-logic-card-head{display:flex;align-items:flex-start;justify-content:space-between;gap:14px;margin-bottom:16px;flex-wrap:wrap}.io-logic-section-title{margin:0 0 8px;font-size:16px;font-weight:800}.io-logic-card-sub{margin:0;color:var(--muted);font-size:13px;line-height:1.6}.io-logic-list{display:flex;flex-direction:column;gap:12px}.io-logic-item{border:1px solid var(--line);border-radius:16px;padding:16px;background:linear-gradient(180deg, #fff 0%, #fafbff 100%)}.io-logic-item-top{display:flex;align-items:center;gap:10px;margin-bottom:8px}.io-logic-item-icon{width:32px;height:32px;border-radius:10px;display:inline-flex;align-items:center;justify-content:center;background:var(--primary-soft);color:var(--primary);font-size:14px;font-weight:800;flex:0 0 auto}.io-logic-item h3{margin:0;font-size:14px;font-weight:800}.io-logic-item p{margin:0;font-size:13px;color:var(--muted);line-height:1.65}.io-logic-formula-box{margin-top:10px;padding:10px 12px;border-radius:12px;background:#f8fafc;border:1px solid var(--line);font-size:11px;color:#475569;line-height:1.5;font-weight:700}