:root{--tf-bg: #fafaf9;--tf-surface: #ffffff;--tf-text: #1c1917;--tf-muted: #78716c;--tf-border: #e7e5e4;--tf-primary: #4f46e5;--tf-primary-hover: #4338ca;--tf-danger: #dc2626;--tf-radius: 10px;--tf-font: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, sans-serif}*{box-sizing:border-box}body{margin:0;font-family:var(--tf-font);background:var(--tf-bg);color:var(--tf-text)}a{color:var(--tf-primary)}.tf-container{max-width:980px;margin:0 auto;padding:24px}.tf-nav{display:flex;align-items:center;justify-content:space-between;padding:14px 24px;background:var(--tf-surface);border-bottom:1px solid var(--tf-border)}.tf-brand{font-weight:700;font-size:18px;letter-spacing:-.02em}.tf-card{background:var(--tf-surface);border:1px solid var(--tf-border);border-radius:var(--tf-radius);padding:20px;margin-bottom:16px}.tf-btn{display:inline-flex;align-items:center;gap:6px;cursor:pointer;background:var(--tf-primary);color:#fff;border:none;border-radius:var(--tf-radius);padding:9px 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