:root{--accent: #2b6cff;--bg: #ffffff;--fg: #0f172a;--muted: #64748b;--surface: #f8fafc;--border: #e2e8f0;--danger: #dc2626;--success: #16a34a;--warn-bg: #fef3c7;--warn-fg: #92400e;--radius: 10px;--font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen, Ubuntu, Cantarell, "Helvetica Neue", Arial, sans-serif}@media (prefers-color-scheme: dark){:root{--bg: #0b1020;--fg: #e6edf7;--muted: #94a3b8;--surface: #121a30;--border: #1f2a44}}*{box-sizing:border-box}html,body,#root{margin:0;padding:0;background:var(--bg);color:var(--fg);font-family:var(--font);-webkit-font-smoothing:antialiased;min-height:100%}button{font:inherit;cursor:pointer}.page{max-width:520px;margin:0 auto;padding:16px;display:flex;flex-direction:column;gap:16px}.header{display:flex;align-items:center;justify-content:space-between;gap:12px;padding-bottom:8px;border-bottom:1px solid var(--border)}.brand{display:flex;align-items:center;gap:10px;min-width:0}.brand img{height:28px;width:auto}.brand .name{font-weight:600;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.lang-toggle{display:inline-flex;border:1px solid var(--border);border-radius:8px;overflow:hidden}.lang-toggle button{background:transparent;border:0;padding:6px 10px;color:var(--muted);font-size:13px}.lang-toggle button.active{background:var(--accent);color:#fff}.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:16px;display:flex;flex-direction:column;gap:12px}.title{margin:0;font-size:18px;font-weight:600}.muted{color:var(--muted);font-size:14px}.row{display:flex;align-items:center;justify-content:space-between;gap:12px}.col{display:flex;flex-direction:column;gap:4px;min-width:0}.qr-wrap{display:flex;justify-content:center;background:#fff;padding:16px;border-radius:var(--radius);border:1px solid var(--border)}.mono{font-family:ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;font-size:13px;word-break:break-all}.btn{border:1px solid var(--border);background:var(--bg);color:var(--fg);border-radius:8px;padding:8px 12px;font-size:14px}.btn:hover{border-color:var(--accent)}.btn.primary{background:var(--accent);color:#fff;border-color:var(--accent)}.btn.small{padding:4px 8px;font-size:12px}.countdown{font-variant-numeric:tabular-nums;font-size:28px;font-weight:600;letter-spacing:.02em}.badge{display:inline-block;padding:2px 8px;border-radius:999px;font-size:12px;font-weight:600;background:var(--surface);border:1px solid var(--border);color:var(--muted)}.badge.test{background:var(--warn-bg);color:var(--warn-fg);border-color:transparent}.warn{background:var(--warn-bg);color:var(--warn-fg);padding:10px 12px;border-radius:8px;font-size:13px}.dot{display:inline-block;width:8px;height:8px;border-radius:50%;background:var(--accent);animation:pulse 1.4s ease-in-out infinite;margin-right:8px}@keyframes pulse{0%,to{opacity:.3}50%{opacity:1}}.success-ico{display:inline-flex;align-items:center;justify-content:center;width:56px;height:56px;border-radius:50%;background:var(--success);color:#fff;font-size:32px;font-weight:700;margin:0 auto}.progress{height:8px;background:var(--border);border-radius:999px;overflow:hidden}.progress>span{display:block;height:100%;background:var(--accent);transition:width .3s}.toast{position:fixed;bottom:16px;left:50%;transform:translate(-50%);background:var(--fg);color:var(--bg);padding:8px 14px;border-radius:999px;font-size:13px;z-index:100}