*{margin:0;padding:0;box-sizing:border-box;}body{background:linear-gradient(145deg,#f9fcf0 0%,#eef7e9 100%);font-family:'Segoe UI','PingFang SC',Roboto,'Helvetica Neue',system-ui,-apple-system,sans-serif;padding:2rem 1.5rem 1rem;min-height:100vh;display:flex;flex-direction:column;align-items:center;}.container{max-width:1280px;width:100%;background:rgba(255,255,255,0.70);backdrop-filter:blur(2px);border-radius:48px 48px 32px 32px;padding:2rem 2rem 1.5rem;box-shadow:0 20px 40px -12px rgba(94,148,120,0.25),0 8px 16px -6px rgba(45,110,80,0.08);border:1px solid rgba(255,245,190,0.5);}.header{display:flex;flex-wrap:wrap;align-items:baseline;justify-content:space-between;margin-bottom:2rem;border-bottom:3px dashed #b8d9c0;padding-bottom:0.75rem;}.header h1{font-size:2.2rem;font-weight:700;letter-spacing:-0.02em;background:linear-gradient(135deg,#2f7b5e,#4fa37b);-webkit-background-clip:text;background-clip:text;color:transparent;display:inline-flex;align-items:center;gap:0.5rem;flex-wrap:wrap;}.header h1 small{font-size:1rem;font-weight:500;background:#fcee8f;color:#2f5b4a;padding:0.2rem 1rem;border-radius:40px;letter-spacing:0.3px;margin-left:0.5rem;background:#f7e47c;box-shadow:0 2px 6px rgba(210,170,30,0.2);}.badge-total{background:#ffd78a;padding:0.3rem 1.2rem;border-radius:60px;font-weight:600;font-size:1rem;color:#3d6b53;border:2px solid #fccf6f;box-shadow:0 4px 8px rgba(250,190,60,0.2);}.course-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:1rem;margin:1.2rem 0 1.8rem;}.course-card{background:white;border-radius:28px;padding:1rem 1.2rem 1rem 1.2rem;box-shadow:0 6px 14px rgba(130,170,140,0.12);transition:all 0.2s ease;border:2px solid transparent;display:flex;flex-direction:column;backdrop-filter:blur(2px);background:rgba(255,255,245,0.85);border:2px solid #e2f0e0;}.course-card:hover{transform:translateY(-4px);border-color:#b3d9c2;box-shadow:0 14px 24px -8px rgba(80,140,100,0.25);background:#fefff7;}.card-header{display:flex;align-items:baseline;gap:0.6rem;margin-bottom:0.4rem;}.chapter-number{font-size:1.1rem;font-weight:700;background:#d4edda;color:#1f5a3a;padding:0 0.6rem;border-radius:40px;line-height:1.8;min-width:2.4rem;text-align:center;background:#c8e6d2;border:1px solid #aacbb6;}.card-title{font-size:1.1rem;font-weight:600;color:#1d4d37;letter-spacing:-0.2px;line-height:1.3;}.card-desc{font-size:0.85rem;color:#3d5f4e;margin:0.3rem 0 0.6rem 0;padding-left:0.2rem;line-height:1.5;opacity:0.85;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}.card-link{margin-top:auto;text-align:right;border-top:1px dashed #cfe3d4;padding-top:0.5rem;}.card-link a{display:inline-block;background:#f5d76e;color:#2b5a41;font-weight:600;font-size:0.8rem;padding:0.2rem 1.2rem;border-radius:40px;text-decoration:none;letter-spacing:0.3px;border:2px solid #ebc84c;transition:all 0.15s;box-shadow:0 2px 6px rgba(200,160,30,0.15);}.card-link a:hover{background:#f0cb4a;border-color:#dbb12b;transform:scale(1.02);box-shadow:0 4px 10px rgba(190,150,20,0.25);}.card-link a:active{transform:scale(0.96);}.footer{margin-top:1.2rem;text-align:center;font-size:1rem;font-weight:500;color:#3f735a;background:#eaf5e3;padding:0.8rem 1.5rem;border-radius:60px;display:inline-block;width:auto;border:2px solid #cbe3cf;backdrop-filter:blur(2px);letter-spacing:1px;}.footer-wrap{display:flex;justify-content:center;width:100%;}@media (max-width:640px){body{padding:1rem 0.8rem;}.container{padding:1.2rem 1rem;border-radius:32px;}.header h1{font-size:1.6rem;}.course-grid{grid-template-columns:1fr;gap:0.9rem;}.card-title{font-size:1rem;}}.highlight-stripe{width:80px;height:6px;background:linear-gradient(90deg,#f9d56e,#b3d9a8);border-radius:8px;margin-top:4px;}.card-header .chapter-number{background:#cfe9d4;color:#1b4f34;}