*{margin:0;padding:0;box-sizing:border-box}:root{--primary: #409eff;--bg: #f5f6fa;--card: #ffffff;--text: #303133;--text2: #606266;--text3: #909399;--border: #e4e7ed;--success: #67c23a;--danger: #f56c6c;--radius: 12px}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,PingFang SC,Hiragino Sans GB,sans-serif;background:var(--bg);color:var(--text);font-size:15px;line-height:1.6;-webkit-font-smoothing:antialiased}.page{min-height:100vh;padding-bottom:env(safe-area-inset-bottom)}.header{position:sticky;top:0;z-index:100;display:flex;align-items:center;gap:12px;padding:12px 16px;background:var(--card);border-bottom:1px solid var(--border)}.header h1{font-size:17px;font-weight:600;flex:1}.header .back{font-size:14px;color:var(--primary);text-decoration:none}.card{background:var(--card);border-radius:var(--radius);padding:16px;margin:12px 16px;box-shadow:0 1px 4px #0000000a}.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;padding:10px 20px;border:none;border-radius:8px;font-size:15px;font-weight:500;cursor:pointer;transition:opacity .2s}.btn:active{opacity:.7}.btn:disabled{opacity:.5;pointer-events:none}.btn-primary{background:var(--primary);color:#fff;width:100%}.btn-small{padding:6px 14px;font-size:13px;width:auto}.btn-danger{background:var(--danger);color:#fff}.btn-outline{background:transparent;border:1px solid var(--border);color:var(--text2)}.tag{display:inline-block;padding:2px 8px;border-radius:4px;font-size:12px;background:#ecf5ff;color:var(--primary)}.loading{text-align:center;padding:40px;color:var(--text3)}input,textarea,select{width:100%;padding:10px 12px;border:1px solid var(--border);border-radius:8px;font-size:15px;outline:none;transition:border-color .2s}input:focus,textarea:focus{border-color:var(--primary)}