:root{--bg: #f6f7f9;--surface: #ffffff;--surface-2: #fafbfc;--border: #e5e8ec;--border-strong: #d3d8de;--text: #16181d;--text-2: #5b6472;--text-3: #8b94a3;--accent: #0b6bcb;--accent-hover: #0959ab;--accent-soft: #e9f2fc;--accent-ring: rgba(11, 107, 203, .16);--ok: #0f7a55;--ok-soft: #e6f5ef;--warn: #a9631a;--warn-soft: #fdf3e6;--err: #c0392b;--err-soft: #fdecea;--radius-sm: 6px;--radius: 10px;--radius-lg: 14px;--shadow-sm: 0 1px 2px rgba(16, 24, 40, .05);--shadow: 0 2px 8px rgba(16, 24, 40, .06), 0 1px 2px rgba(16, 24, 40, .04);--header-h: 64px;--content-max: 800px;--font: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Source Han Sans SC", "Noto Sans CJK SC", Roboto, sans-serif;--font-mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, "Liberation Mono", 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