*{margin:0;padding:0;box-sizing:border-box;}body{background:#fef9e7;font-family:'Segoe UI','PingFang SC',Roboto,system-ui,-apple-system,sans-serif;display:flex;justify-content:center;align-items:center;min-height:100vh;padding:30px 20px;}.double-border-wrapper{max-width:1200px;width:100%;background:#ffffffdd;border:6px solid #f9d9b1;border-radius:48px 48px 32px 32px;padding:14px;box-shadow:0 20px 40px rgba(245,165,80,0.15);backdrop-filter:blur(2px);}.inner-card{background:#fffcf5;border:4px solid #b7d7e8;border-radius:36px 36px 24px 24px;padding:32px 36px;box-shadow:inset 0 0 0 2px #faeedc;}.header{margin-bottom:28px;border-bottom:3px dashed #f3cba5;padding-bottom:18px;}.header h1{font-size:2.6rem;font-weight:700;color:#2c4a6e;letter-spacing:1px;display:flex;align-items:center;gap:12px;flex-wrap:wrap;}.header h1 small{font-size:1.1rem;font-weight:400;color:#7f9eb5;background:#e5f0f7;padding:6px 18px;border-radius:40px;margin-left:8px;}.subhead{display:flex;justify-content:space-between;align-items:center;margin-top:8px;color:#5b6f82;}.subhead .tag{background:#fce4c8;padding:4px 18px;border-radius:30px;font-weight:500;font-size:0.9rem;color:#7a5a3a;}.section-title{font-size:1.8rem;font-weight:600;color:#2c5f7a;margin:32px 0 18px 0;padding-left:12px;border-left:12px solid #f7c59f;line-height:1.3;}.section-title:first-of-type{margin-top:8px;}.highlight-box{background:#f6f9fe;border-radius:28px;padding:20px 28px;margin:20px 0;border:2px solid #d7e6f2;box-shadow:0 4px 8px rgba(0,0,0,0.02);}.grid-3{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:24px;margin:24px 0;}.rule-card{background:white;border-radius:28px;padding:20px 18px 24px;box-shadow:0 8px 0 #e3d5c0,0 12px 24px -8px rgba(180,140,100,0.2);border:2px solid #f0e3d2;transition:transform 0.1s ease;}.rule-card:hover{transform:translateY(-4px);}.rule-card h3{font-size:1.6rem;font-weight:600;color:#1f4a6e;margin-bottom:8px;display:flex;align-items:center;gap:8px;}.rule-card h3 span{background:#fbd5b1;font-size:1rem;padding:2px 14px;border-radius:30px;color:#4d2f1a;}.rule-card .badge{display:inline-block;background:#cbe0f0;border-radius:30px;padding:2px 16px;font-size:0.8rem;font-weight:600;color:#1f4970;margin:6px 0 12px;}.rule-card p{color:#2f4052;line-height:1.6;font-size:0.98rem;}.rule-card ul{margin:12px 0 0 18px;color:#2f4052;}.rule-card ul li{margin-bottom:6px;}.table-wrap{overflow-x:auto;margin:28px 0;border-radius:24px;background:#faf7f0;border:2px solid #e6dccb;}table{width:100%;border-collapse:collapse;font-size:0.98rem;background:#fefcf8;}th{background:#d9e6f2;color:#1d3f5a;font-weight:600;padding:16px 12px;text-align:left;border-bottom:4px solid #b7cbd9;}td{padding:14px 12px;border-bottom:1px solid #e9dfd0;vertical-align:top;}tr:last-child td{border-bottom:none;}.code-block{background:#1e2a36;color:#e6f0d8;border-radius:24px;padding:18px 22px;margin:24px 0;overflow-x:auto;font-size:0.9rem;border:3px solid #b7c9d6;box-shadow:inset 0 0 0 2px #3a4b5a;}.code-block pre{font-family:'JetBrains Mono','Fira Code','Cascadia Code',monospace;white-space:pre-wrap;word-break:break-word;line-height:1.7;margin:0;}.svg-container{display:flex;justify-content:center;margin:30px 0 20px;background:#f5f9fe;border-radius:40px;padding:20px 10px;border:2px solid #d7e2ed;}.footer-note{margin-top:48px;padding-top:20px;border-top:4px double #e6cfb5;text-align:center;font-size:1.2rem;font-weight:500;color:#4b6b7c;letter-spacing:2px;}.footer-note span{background:#f7e5d3;padding:6px 32px;border-radius:60px;display:inline-block;}@media (max-width:640px){.inner-card{padding:18px 16px;}.header h1{font-size:2rem;}}