:root{
  --accent:#007aff;
  --bg:#f1f3f5;
  --card:#ffffff;
  --sub:#8e8e93;
  --border:#e5e5ea;
  --radius:20px;
  font-family:-apple-system,BlinkMacSystemFont,"Helvetica Neue",Helvetica,Arial,sans-serif;
  
    --footer-content: rgba(255, 255, 255, 1);
    --footer-link-border: rgba(17, 17, 17, 0.2);
    --footer-div-background: rgba(0, 0, 0, 0)
}
body{margin:0;background:var(--bg);color:#000;display:flex;flex-direction:column;align-items:center}
h1{font-size:32px;font-weight:600;margin:20px 0;letter-spacing:-.5px}
.card{width:90%;max-width:440px;background:var(--card);border-radius:var(--radius);box-shadow:0 4px 24px rgba(0,0,0,.06);}
.section{padding:16px;border-bottom:1px solid var(--border);}
.section:last-child{border-bottom:none;}
.section-title{font-size:22px;font-weight:600;margin-bottom:12px}
/* iOS 多选列表 */
.list{margin-bottom: -10px}
.item{display:flex;align-items:center;justify-content:space-between;background: var(--bg);margin: 10px 0;padding:12px 10px;border-radius: 10px;font-size:17px}
.item label{display:flex;align-items:center;width:100%;cursor:pointer}
.item input{width:20px;height:20px;accent-color:var(--accent)}
.item span{padding-left: 6px;}

/* 输入框 */
.inp{width:100%;padding:12px 14px;font-size:17px;border:2px solid var(--border);border-radius:28px;box-sizing:border-box;margin-top:6px;appearance: none;  -webkit-appearance: none;  -moz-appearance: none}
/* 按钮 */
.btn{width:200px;margin: 0px;padding:14px 0;font-size:17px;font-weight:600;color:#fff;background:var(--accent);border:none;border-radius:var(--radius);cursor:pointer}
.btn:active{opacity:.9}
/* 结果 */
.result{margin-top:0px;font-size:17px;line-height:1.6}
.result h3{font-size:20px;font-weight:600;margin:0 0 8px}
.bar{height:6px;background:var(--border);border-radius:3px;overflow:hidden;margin:10px 0}
.bar div{height:100%;background:var(--accent);transition:width .3s}

/* 页尾样式 */
footer {
    background: var(--card);    
    //max-width: 1200px;
    padding: 1rem 1rem;
    //margin: 0 auto;
    display: flex;    
    align-items: center;
    flex-wrap: wrap;
    gap: 0.8rem;
    align-self: stretch;
    justify-content: space-between;
}

.footer-info {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.footer-copyright {
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.footer-links {
    display: flex;
    gap: 1.5rem;
    align-items: center;
    flex-wrap: wrap;
}

.footer-link {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background: var(--bg);
    border: 1px solid var(--footer-link-border);
    border-radius: 20px;
    color: var(--text-primary);
    text-decoration: none;
    font-size: 0.9rem;
    transition: all 0.3s ease;
}

.footer-link:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: var(--accent-color);
    transform: translateY(-2px);
}

.footer-link i {
    color: var(--accent-color);
}

.footer-link img {
    height: 16px;
    width: auto;
    transition: transform 0.3s ease;
}

.footer-link:hover img {
    transform: scale(1.1);
}

@media (max-width: 768px) {  
    .footer-info {
        align-items: center;
    }
    
    .footer-links {
        justify-content: center;
        gap: 1rem;
    }
    
    .footer-link {
        padding: 0.4rem 0.8rem;
        font-size: 0.85rem;
    }
}

@media (max-width: 480px) { 
    footer {
        flex-direction: column;
        width: 90%;
    }

    .footer-copyright {
        font-size: 1rem;
    }
    
    .footer-links {
        flex-direction: column;
        gap: 0.8rem;
    }
    
    .footer-link {
        //width: 100%;
        justify-content: center;
    }
}