:root{--grad:linear-gradient(135deg, #7b1fa2 0%, #e91e63 100%);--primary:#7b1fa2;--pink:#e91e63;--bg:#f0f4f8;--text:#333;--text-secondary:#666;--text-light:#999}*{box-sizing:border-box;margin:0;padding:0}html,body{max-width:100vw;height:100%;overflow-x:hidden}body{background:var(--bg);color:var(--text);-webkit-font-smoothing:antialiased;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,PingFang SC,Hiragino Sans GB,Microsoft YaHei,Arial,sans-serif}a{color:inherit;text-decoration:none}button{cursor:pointer;border:none;font-family:inherit}input,textarea,select{font-family:inherit}.btn-gradient{background:var(--grad);color:#fff;border-radius:20px;font-weight:700;transition:all .3s}.btn-gradient:active{opacity:.9;transform:scale(.98)}.btn-gradient:disabled{opacity:.6;background:#ccc}.card{background:#fff;border-radius:10px;box-shadow:0 5px 15px #00000014}.page-header{z-index:10;background:#fff;border-bottom:1px solid #eee;justify-content:space-between;align-items:center;padding:15px;display:flex;position:sticky;top:0}.back-btn{color:#333;background:0 0;padding:4px 8px;font-size:20px}