:root{--color-primary:#1f6feb;--color-primary-dark:#1755c4;--color-text:#1f2329;--color-text-secondary:#6b7280;--color-bg:#f5f7fa;--color-surface:#fff;--color-border:#e5e7eb;--radius:12px;--shadow:0 6px 20px #0000000f;--font-family:"PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif}*{box-sizing:border-box;margin:0;padding:0}html,body,#app{height:100%}body{font-family:var(--font-family);color:var(--color-text);background:var(--color-bg);-webkit-font-smoothing:antialiased}a{color:inherit;text-decoration:none}.page-container{max-width:1080px;margin:0 auto;padding:0 24px}.content-card{background:var(--color-surface);border-radius:var(--radius);box-shadow:var(--shadow);padding:32px}