#heater{display:flex;align-items:center;margin-left:10px;margin-right:10px}.el-form-item{margin-bottom:2px}.constudynews{backgroundSize:"cover";background-color:#4074f2;background-size:cover;background-position:50%;position:relative;height:270px}.side-card{background:#fff;border-radius:12px;box-shadow:0 2px 12px rgba(0,0,0,.08);padding:24px}.side-title{font-size:24px;font-weight:700;color:#222;margin:0 0 20px}.rec-item{display:flex;gap:14px;padding:12px;background-color:#fff;border:1px solid #f0f2f5;border-radius:10px;margin-bottom:14px;cursor:pointer;transition:background-color .25s ease}.rec-item:last-child{margin-bottom:0}.rec-item:hover{background-color:#f5f9ff}.rec-icon{width:48px;height:48px;border-radius:8px;display:flex;align-items:center;justify-content:center;font-size:22px;flex-shrink:0}.rec-text{flex:1}.rec-title{font-size:17px;font-weight:550;color:#222}.rec-desc{font-size:14px;color:#777;margin-top:4px}.cert-item{display:flex;align-items:center;gap:14px;padding:14px;background-color:#eaf4ff;border-radius:10px;margin-bottom:16px;cursor:pointer;transition:all .25s ease}.cert-item:last-child{margin-bottom:0}.cert-icon{width:48px;height:48px;border-radius:8px;display:flex;align-items:center;justify-content:center;font-size:22px;background-color:#d9e7ff;color:#3370ff;flex-shrink:0;transition:all .25s ease}.cert-title{font-size:18px;font-weight:550;color:#222;line-height:1.4;transition:color .25s ease}.cert-desc{font-size:14px;color:#777;margin-top:4px}.cert-item:hover{background-color:#c9e2ff}.cert-item:hover .cert-icon{background-color:#3370ff;color:#fff}.cert-item:hover .cert-title{color:#3370ff}.tag{display:inline-block;font-size:12px;padding:2px 6px;border-radius:4px;margin-left:6px}.tag-green{background:#d4f8c9;color:#237010}.tag-blue{background:#d9e7ff;color:#25b}.tag-yellow{background:#ffe9cc;color:#950}