:root{--sm-bg:#f3f6fb;--sm-card:#fff;--sm-border:#e7edf5;--sm-text:#1f2937;--sm-subtext:#6b7280;--sm-primary:#10b981;--sm-primary-deep:#059669}*{box-sizing:border-box}html,body,#app{width:100%;min-height:100%;margin:0;padding:0}body{background:var(--sm-bg);color:var(--sm-text);font-family:PingFang SC,Microsoft YaHei,Helvetica Neue,Arial,sans-serif}a{color:inherit;text-decoration:none}.page-block{background:var(--sm-card);border:1px solid var(--sm-border);border-radius:12px}.page-title{margin:0;font-size:26px}.page-subtitle{color:var(--sm-subtext);margin:8px 0 0;font-size:14px}