*{
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: "Microsoft Yahei",sans-serif;
}
body{
    min-height: 100vh;
    background: linear-gradient(135deg,#141e30,#243b55);
    padding: 20px;
    color: #fff;
}
/* 液态玻璃卡片核心类 */
.glass{
    background: rgba(255,255,255,0.08);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid rgba(255,255,255,0.15);
    border-radius: 16px;
    box-shadow: 0 8px 32px rgba(0,0,0,0.3);
    padding: 24px;
    max-width: 900px;
    margin: 20px auto;
}
.glass-sm{
    max-width: 420px;
}
.title{
    text-align: center;
    margin-bottom: 20px;
    font-size: 24px;
    font-weight: 600;
    letter-spacing: 1px;
}
.tip-text{
    color: #ff6b6b;
    text-align: center;
    margin: 10px 0;
}
.success-text{
    color: #4cd964;
    text-align: center;
    margin: 10px 0;
}
input,textarea,select{
    width: 100%;
    padding: 12px 16px;
    margin: 8px 0;
    border-radius: 10px;
    border: 1px solid rgba(255,255,255,0.15);
    background: rgba(255,255,255,0.06);
    color: #fff;
    font-size: 15px;
    outline: none;
    transition: 0.3s;
}
input:focus,textarea:focus,select:focus{
    border-color: rgba(80,160,255,0.6);
    box-shadow: 0 0 0 3px rgba(80,160,255,0.15);
}
::placeholder{
    color: rgba(255,255,255,0.4);
}
.btn{
    display: block;
    width: 100%;
    padding: 12px;
    margin: 8px 0;
    border-radius: 10px;
    border: none;
    font-size: 15px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.25s;
    text-decoration: none;
    text-align: center;
}
.btn-primary{
    background: linear-gradient(90deg,#007aff,#00a3ff);
    color: #fff;
}
.btn-primary:hover{
    opacity: 0.9;
    transform: translateY(-2px);
}
.btn-green{
    background: linear-gradient(90deg,#34c759,#30d158);
    color: #fff;
}
.btn-gray{
    background: rgba(255,255,255,0.12);
    color: #fff;
}
.btn-red{
    background: linear-gradient(90deg,#ff3b30,#ff453a);
    color: #fff;
}
.flex-row{
    display: flex;
    gap:12px;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
}
.task-card{
    margin:12px 0;
}
a{
    color:#60b8ff;
    text-decoration: none;
}
a:hover{
    text-decoration: underline;
}
@media(max-width:600px){
    .glass{
        padding:16px;
    }
    .flex-row{
        flex-direction: column;
    }
}