*{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:2rem 1rem;}.double-border-card{max-width:1200px;width:100%;background:#ffffffdd;backdrop-filter:blur(2px);border:4px solid #f9d56e;outline:4px solid #ffb347;outline-offset:2px;border-radius:48px 16px 48px 16px;box-shadow:0 20px 40px rgba(255,179,71,0.2),0 8px 16px rgba(0,0,0,0.05);padding:2rem 2.5rem;transition:all 0.1s ease;background:#fffcf0;}.header{border-bottom:3px dashed #f7b731;padding-bottom:1.2rem;margin-bottom:2rem;display:flex;flex-wrap:wrap;justify-content:space-between;align-items:baseline;}.header h1{font-size:2.4rem;font-weight:700;color:#c97b2d;letter-spacing:1px;text-shadow:2px 2px 0 #fce6b4;display:inline-block;background:linear-gradient(145deg,#fbd89c,#f9c96a);padding:0.2rem 1.2rem 0.2rem 1rem;border-radius:60px 12px 60px 12px;margin-right:1rem;}.header .sub{font-size:1.1rem;background:#fdeacb;padding:0.3rem 1.2rem;border-radius:30px;color:#8b5a2b;font-weight:500;border:2px solid #f5c27b;}h2{font-size:1.8rem;margin:2rem 0 1rem 0;padding-left:0.8rem;border-left:12px solid #f9b83a;color:#6b3f1c;background:linear-gradient(to right,#fef3d9,transparent);border-radius:0 20px 20px 0;font-weight:600;}h3{font-size:1.4rem;margin:1.5rem 0 0.8rem 0;color:#8b5a2b;display:inline-block;border-bottom:4px dotted #f7b731;padding-bottom:0.2rem;}p,li{color:#3f2c1a;line-height:1.6;font-size:1.05rem;}.elegant-table{width:100%;border-collapse:separate;border-spacing:0 6px;margin:1.5rem 0;}.elegant-table th{background:#fbd068;color:#3f2c1a;font-weight:700;padding:12px 8px;border-radius:20px 20px 8px 8px;border:2px solid #f5b342;font-size:1.1rem;}.elegant-table td{background:#fff9ea;padding:12px 10px;border:2px solid #fad39c;border-radius:16px;box-shadow:0 4px 0 #f7d59c;}.elegant-table tr:not(:first-child) td:first-child{background:#fef0d2;font-weight:600;}.fun-list{background:#fff7e5;padding:1.2rem 1.8rem;border-radius:30px 12px 30px 12px;border:2px solid #f7c77b;list-style-type:"✨ ";margin:1rem 0;}.fun-list li{margin:0.6rem 0;padding-left:0.5rem;}.fun-list li::marker{color:#e68a2e;font-size:1.3rem;}pre{background:#2d2418;color:#fbe9c3;padding:1.2rem 1.5rem;border-radius:28px 8px 28px 8px;border:3px solid #f7b731;box-shadow:inset 0 0 0 2px #4f3a24;font-size:0.95rem;overflow-x:auto;white-space:pre-wrap;word-break:break-word;font-family:'JetBrains Mono','Cascadia Code','Fira Code',monospace;margin:1.2rem 0;line-height:1.5;}pre .comment{color:#b8a58b;}.svg-container{background:#fcf3e0;border-radius:40px 12px 40px 12px;padding:1.2rem 0.5rem;border:3px solid #fad19e;margin:1.8rem 0;display:flex;justify-content:center;}svg text{font-family:'Segoe UI','PingFang SC',sans-serif;}.arch-svg-wrapper{background:#fcf3e0;border-radius:40px 12px 40px 12px;padding:1rem;border:3px solid #fad19e;margin:1.8rem 0;}.footer-note{margin-top:3rem;padding-top:1.2rem;border-top:4px double #f7b731;text-align:center;font-size:1.3rem;font-weight:600;color:#7b4a1e;letter-spacing:2px;background:#fef3dd;border-radius:60px 12px 60px 12px;padding:0.8rem 1rem;}.badge{display:inline-block;background:#fbd068;padding:0.2rem 1rem;border-radius:30px;font-weight:600;color:#4f2f0e;border:2px solid #e5942b;}@media (max-width:700px){.double-border-card{padding:1.2rem;}.header h1{font-size:1.8rem;}}