@import "https://fonts.googleapis.com/css2?family=Noto+Sans+JP:wght@400;500;600;700&display=swap";:root{--bg-main:#f6f8fa;--bg-subtle:#f6f8fa;--bg-surface:#fff;--bg-card:#fff;--bg-card-hover:#f6f8fa;--bg-input:#fff;--bg-snippet:#f6f8fa;--bg-header:#f6f8fa;--bg-sidebar:#fff;--sidebar-text:#656d76;--sidebar-text-active:#1f2328;--sidebar-item-hover:#eaeef299;--sidebar-item-active:#f6f8fa;--border-subtle:#eaeef2;--border-default:#d0d7de;--border-accent:#0969da;--border-focus:#0969da;--text-title:#1f2328;--text-primary:#1f2328;--text-main:#1f2328;--text-secondary:#656d76;--text-muted:#8c959f;--text-subtle:#d0d7de;--text-link:#0969da;--text-link-hover:#0969da;--accent-primary:#0969da;--accent-primary-hover:#0860ca;--accent-secondary:#1f883d;--accent-soft:#0969da14;--accent-feedly:#1f883d;--accent-feedly-hover:#1a7f37;--accent-feedly-soft:#1f883d14;--accent-feedly-glow:#1f883d33;--accent-cyan:#0969da;--accent-purple:#8250df;--accent-emerald:#1f883d;--accent-amber:#9a6700;--accent-rose:#cf222e;--color-success:#1f883d;--color-success-bg:#dafbe1;--color-success-border:#4ac26b;--color-success-text:#1a7f37;--color-warning:#9a6700;--color-warning-bg:#fff8c5;--color-warning-border:#d4a72c66;--color-warning-text:#7d4e00;--color-danger:#cf222e;--color-danger-bg:#ffebe9;--color-danger-border:#ff818266;--color-danger-text:#cf222e;--radius-sm:4px;--radius-md:6px;--radius-lg:8px;--radius-xl:12px;--radius-full:9999px;--font-sans:-apple-system, BlinkMacSystemFont, "Segoe UI", "Noto Sans", "Noto Sans JP", Helvetica, Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji";--font-editorial:-apple-system, BlinkMacSystemFont, "Segoe UI", "Noto Sans", "Noto Sans JP", Helvetica, Arial, sans-serif;--font-mono:ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, "Liberation Mono", monospace;--line-height-normal:1.5;--transition-fast:80ms cubic-bezier(.33, 1, .68, 1);--transition:.12s cubic-bezier(.33, 1, .68, 1);--transition-smooth:.2s cubic-bezier(.16, 1, .3, 1);--shadow-sm:0 1px 0 #1f23280a;--shadow-md:0 3px 6px #8c959f26;--shadow-lg:0 8px 24px #8c959f33;--shadow-card:0 1px 3px #1f23281f;--shadow-card-hover:0 3px 6px 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