*{box-sizing:border-box;margin:0;padding:0}:root{--tg-theme-bg-color: #ffffff;--tg-theme-text-color: #000000;--tg-theme-hint-color: #999999;--tg-theme-link-color: #2481cc;--tg-theme-button-color: #2481cc;--tg-theme-button-text-color: #ffffff;--tg-theme-secondary-bg-color: #f4f4f5}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif;background-color:var(--tg-theme-bg-color);color:var(--tg-theme-text-color);line-height:1.5;min-height:100vh}.app{padding:16px 16px 80px;max-width:600px;margin:0 auto}.header{display:flex;flex-direction:column;margin-bottom:20px;padding-bottom:12px;border-bottom:1px solid var(--tg-theme-secondary-bg-color)}.header-content{display:flex;justify-content:space-between;align-items:center;margin-bottom:12px}.header 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