:root{--page-width:1920px;--page-bg:#f5f7fc;--color-primary:#6366f1;--color-primary-dark:#4f46e5;--color-primary-light:#eef2ff;--color-accent:#ff7a00;--color-accent-soft:#fff4e6;--color-text:#1e293b;--color-text-secondary:#64748b;--color-text-muted:#94a3b8;--color-white:#fff;--color-border:#e2e8f0;--color-success:#10b981;--color-hot:#f97316;--color-new:#22c55e;--shadow-sm:0 1px 3px #0f172a0f;--shadow-md:0 4px 16px #0f172a14;--shadow-card:0 2px 12px #6366f114;--radius-sm:8px;--radius-md:12px;--radius-lg:16px;--radius-xl:20px;--radius-pill:999px;--header-height:72px;--content-padding:120px;--font-family:"PingFang SC", "Microsoft YaHei", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif}*,:before,:after{box-sizing:border-box;margin:0;padding:0}html{-webkit-font-smoothing:antialiased;font-size:16px}body{font-family:var(--font-family);color:var(--color-text);background:var(--page-bg);min-width:320px;line-height:1.5}a{color:inherit;text-decoration:none}button{cursor:pointer;background:0 0;border:none;font-family:inherit}img{max-width:100%;display:block}#app{min-height:100vh}