*{margin:0;padding:0;box-sizing:border-box;}body{background:#fef9e7;font-family:'Segoe UI','PingFang SC',Roboto,'Helvetica Neue',sans-serif;display:flex;justify-content:center;align-items:center;min-height:100vh;padding:30px 20px;}.double-border-wrapper{max-width:1300px;width:100%;background:#ffffffdd;border:6px solid #f9d9b1;border-radius:48px 48px 32px 32px;padding:12px;box-shadow:0 20px 40px rgba(245,165,80,0.15);backdrop-filter:blur(2px);}.inner-card{background:#ffffff;border:4px solid #b3d9ff;border-radius:36px 36px 24px 24px;padding:30px 35px 20px 35px;box-shadow:inset 0 0 0 2px #ffe9c4;}.header-title{display:flex;align-items:baseline;justify-content:space-between;border-bottom:4px dashed #fbc4ab;padding-bottom:12px;margin-bottom:28px;flex-wrap:wrap;}.header-title h1{font-size:2.4rem;font-weight:700;color:#2f5d7a;letter-spacing:2px;background:linear-gradient(145deg,#3b7a9e,#1f4b66);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;text-shadow:2px 2px 0 #e3f0fa;}.header-title .sub{font-size:1.1rem;background:#ffedd5;padding:8px 18px;border-radius:40px;color:#b45f3a;font-weight:600;border:2px solid #fbc4ab;}.intro-badge{background:#e6f7ff;border-left:12px solid #6fc1e0;padding:14px 22px;border-radius:30px 12px 30px 12px;margin-bottom:30px;color:#1d3e5a;font-size:1.05rem;font-weight:500;box-shadow:0 4px 8px #c7e2f0;}.intro-badge strong{color:#c44536;}.table-wrap{overflow-x:auto;margin:25px 0 30px 0;border-radius:28px;background:#fafcff;border:2px solid #d9e9f5;}table{width:100%;border-collapse:collapse;font-size:0.95rem;background:#ffffff;}th{background:#b7dff7;color:#1f3f54;font-weight:700;padding:14px 12px;border-bottom:4px solid #8bc1e0;text-align:center;}td{padding:12px 12px;border-bottom:1px solid #e2edf5;vertical-align:middle;}tr:last-child td{border-bottom:none;}.highlight-miss{background:#fff3e0;}.tag{background:#fde6d2;border-radius:40px;padding:2px 14px;font-weight:600;color:#a44d2a;display:inline-block;}.feature-list{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:16px;margin:20px 0 30px 0;}.feature-item{background:#f5faff;border:2px solid #cbe5f5;border-radius:30px;padding:14px 18px;font-weight:500;color:#1f4b66;box-shadow:0 4px 0 #d4e9f5;transition:0.1s ease;display:flex;align-items:center;}.feature-item::before{content:"🧩";margin-right:12px;font-size:1.4rem;}.svg-container{background:#f9feff;border-radius:40px;padding:20px 10px 10px 10px;border:3px solid #b3d9ff;margin:30px 0 25px 0;text-align:center;}.svg-container svg{max-width:100%;height:auto;font-family:'Segoe UI','PingFang SC',sans-serif;}pre{background:#1e2b3a;color:#e4f0fb;padding:20px 24px;border-radius:28px;font-size:0.9rem;line-height:1.6;overflow-x:auto;border:3px solid #7bb3d9;box-shadow:inset 0 0 0 2px #2f4b62;margin:20px 0 25px 0;white-space:pre-wrap;word-break:break-word;}pre span.keyword{color:#ffb871;}pre span.func{color:#8fcbff;}pre span.comment{color:#8b9eb0;}.interp-grid{display:flex;flex-wrap:wrap;gap:18px;margin:25px 0 20px 0;}.interp-card{flex:1 1 180px;background:#f2f9fc;border-radius:28px;padding:16px 12px;border:2px solid #b3d9ff;text-align:center;font-weight:600;color:#1f4b66;box-shadow:0 6px 0 #cfe2f0;}.interp-card span{display:block;font-size:1.8rem;margin-bottom:6px;}.footer-note{margin-top:40px;padding-top:18px;border-top:4px dotted #fbc4ab;text-align:center;font-size:1.2rem;font-weight:600;color:#3f6f8a;letter-spacing:2px;}.footer-note small{font-weight:400;color:#7f9eb0;}@media (max-width:700px){.inner-card{padding:20px 15px;}.header-title h1{font-size:1.8rem;}}