:root{--font-sans:"Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;--bg-main:#f5f5f7;--bg-card:#fff;--bg-card-hover:#fff;--border-color:#e5e5e7;--border-color-hover:#d2d2d7;--color-primary:#0071e3;--color-primary-glow:#0071e314;--color-secondary:#5856d6;--color-success:#34c759;--color-success-glow:#34c7591a;--color-warning:#ff9500;--color-danger:#ff3b30;--color-danger-glow:#ff3b301a;--text-primary:#1d1d1f;--text-secondary:#6e6e73;--text-muted:#86868b;--shadow-sm:0 1px 2px #0000000a;--shadow-md:0 2px 8px #0000000a;--shadow-lg:0 8px 20px #0000000f;--shadow-primary:0 4px 12px #0071e326;--radius-sm:6px;--radius-md:10px;--radius-lg:12px;--radius-xl:18px;--transition-fast:.12s ease;--transition-normal:.22s cubic-bezier(.25, 1, .5, 1);--transition-slow:.38s cubic-bezier(.25, 1, .5, 1)}@media 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