:root{--ink-black:#2c2c2c;--ink-dark:#4a4a4a;--ink-gray:#8c8c8c;--paper-white:#faf8f5;--paper-warm:#f5f0e8;--accent-gold:#b4975a;--accent-tea:#8b7355;--accent-jade:#6b8e6b;--divider:#e8e0d5;--danger:#c0392b;--success:#5b8c5a;--space-1:8px;--space-2:16px;--space-3:24px;--space-4:32px;--radius:12px}*{box-sizing:border-box;margin:0;padding:0}html,body{background:var(--paper-white);color:var(--ink-black);-webkit-font-smoothing:antialiased;-webkit-tap-highlight-color:transparent;font-family:PingFang SC,Hiragino Sans GB,Microsoft YaHei,sans-serif;overflow-x:hidden}.app-shell{background:var(--paper-white);max-width:480px;min-height:100dvh;margin:0 auto;box-shadow:0 0 40px #0000000a}.van-nav-bar{background:var(--paper-white)!important}.van-nav-bar__title{font-weight:600;color:var(--ink-black)!important}.van-button--primary{background:var(--ink-black)!important;border-color:var(--ink-black)!important}.van-field__label{color:var(--ink-dark)!important}.van-radio-group .van-radio__label{color:var(--ink-dark)}img{-webkit-touch-callout:default;touch-action:manipulation}h1{color:var(--ink-black);font-size:24px;font-weight:700}h2{color:var(--ink-black);font-size:20px;font-weight:600}h3{color:var(--ink-dark);font-size:16px;font-weight:500}p{color:var(--ink-dark);font-size:14px;line-height:1.7}.page{padding:var(--space-2);padding-bottom:var(--space-4)}.stone-card{border-radius:var(--radius);background:#fff;transition:transform .2s,box-shadow .2s;overflow:hidden;box-shadow:0 2px 12px #0000000a}.stone-card:active{transform:scale(.98);box-shadow:0 4px 20px #00000014}.disclaimer{color:var(--ink-gray);text-align:center;padding:var(--space-2);font-size:12px;line-height:1.6}