:root{--bg: #f6f6f7;--surface: #ffffff;--surface-2: #fafafb;--surface-3: #f1f1f3;--ink: #151518;--ink-2: #43434c;--muted: #7b7b85;--faint: #a5a5ad;--line: #e8e8eb;--line-strong: #d9d9df;--red: #c8102e;--red-deep: #a30c25;--red-soft: #fbeeef;--red-line: #f0cdd2;--green: #0f7a52;--green-soft: #edf7f2;--amber: #8a5b00;--amber-soft: #fdf8ee;--amber-line: #ecd3a6;--radius: 12px;--radius-lg: 18px;--shadow-1: 0 1px 2px rgba(21, 21, 24, .04);--shadow-2: 0 18px 48px -24px rgba(21, 21, 24, .28);--font-sans: "Inter", "SF Pro Text", -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans JP", sans-serif;--font-mono: "SF Mono", ui-monospace, "JetBrains Mono", Menlo, Consolas, "Courier New", monospace;--font-scale: 1;--fs-display: calc(40px * var(--font-scale));--fs-h1: calc(25px * var(--font-scale));--fs-h2: calc(18px * var(--font-scale));--fs-h3: calc(15px * var(--font-scale));--fs-body: calc(13.5px * var(--font-scale));--fs-sm: calc(12.5px * 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