:root{--chk-bg: #0b0c0e;--chk-panel: #141518;--chk-line: rgba(204, 255, 0, .22);--chk-accent: #ccff00;--chk-text: #f2f3f0;--chk-dim: rgba(255, 255, 255, .55);--chk-dimmer: rgba(255, 255, 255, .32)}*{box-sizing:border-box}body.chk-body{margin:0;min-height:100vh;background:radial-gradient(circle at 50% 0%,rgba(204,255,0,.08),transparent 55%),var(--chk-bg);color:var(--chk-text);font-family:ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,PingFang SC,Microsoft YaHei,sans-serif;-webkit-font-smoothing:antialiased}.chk{display:flex;align-items:center;justify-content:center;min-height:100vh;padding:96px 20px 56px}.chk-card{width:100%;max-width:620px;padding:40px 36px 34px;background:linear-gradient(160deg,#16171b,#101114);border:1px solid var(--chk-line);border-radius:20px;box-shadow:0 0 0 1px #ccff000a,0 24px 60px #0009,inset 0 0 40px #ccff0005;text-align:center}.chk-tick{width:54px;height:54px;margin:0 auto 18px;display:flex;align-items:center;justify-content:center;font-size:26px;color:#0f0f0f;background:var(--chk-accent);border-radius:50%;box-shadow:0 0 24px #ccff0073}.chk-badge{display:inline-block;margin-bottom:12px;padding:4px 12px;font-size:11px;font-weight:700;letter-spacing:1.4px;color:var(--chk-accent);background:#ccff001a;border:1px solid var(--chk-line);border-radius:999px}.chk-title{margin:0 0 10px;font-size:26px;font-weight:700;letter-spacing:.5px}.chk-sub{margin:0 0 26px;font-size:14px;line-height:1.7;color:var(--chk-dim)}.chk-meta{display:flex;justify-content:center;gap:34px;padding:16px 0;margin-bottom:26px;border-top:1px solid rgba(255,255,255,.07);border-bottom:1px solid rgba(255,255,255,.07)}.chk-meta-item{text-align:center}.chk-meta-label{font-size:10px;letter-spacing:1px;color:var(--chk-dimmer);margin-bottom:6px}.chk-meta-value{font-family:Courier New,monospace;font-size:15px;font-weight:700;color:var(--chk-accent);letter-spacing:.5px}.chk-badge-demo{color:#ffffff8c;background:#ffffff0f;border-color:#ffffff24}.chk-stats{display:flex;justify-content:space-between;gap:10px;margin:0 0 26px;padding:14px 6px;background:#ffffff08;border-radius:12px}.chk-stat{flex:1 1 0;min-width:0;text-align:center}.chk-stat-label{margin-bottom:5px;font-size:10px;letter-spacing:.8px;color:var(--chk-dimmer)}.chk-stat-value{font-size:13px;font-weight:600;color:var(--chk-text);overflow-wrap:anywhere}.chk-quote{margin:0 0 28px;padding:24px 22px;background:#ccff000a;border-left:2px solid var(--chk-accent);border-radius:4px 12px 12px 4px;text-align:left}.chk-quote-label{margin-bottom:12px;font-size:10px;font-weight:700;letter-spacing:1.6px;color:var(--chk-dimmer)}.chk-quote-text{margin:0;font-size:18px;line-height:1.8;color:var(--chk-text)}.chk-quote-en .chk-quote-text{font-size:17px;line-height:1.7}.chk-actions{display:flex;justify-content:center;gap:12px;flex-wrap:wrap}.chk-btn{display:inline-flex;align-items:center;padding:11px 22px;font-size:14px;font-weight:600;text-decoration:none;border-radius:999px;transition:background .18s ease,color .18s ease,border-color .18s ease}.chk-btn-primary{color:#0f0f0f;background:var(--chk-accent)}.chk-btn-primary:hover{background:#e2ff4d}.chk-btn-ghost{color:var(--chk-dim);border:1px solid rgba(255,255,255,.14)}.chk-btn-ghost:hover{color:var(--chk-text);border-color:#ffffff4d}.chk-foot{margin:26px 0 0;font-size:12px;line-height:1.7;color:var(--chk-dimmer)}@media(max-width:520px){.chk{padding:84px 14px 40px}.chk-card{padding:30px 20px 26px;border-radius:16px}.chk-title{font-size:22px}.chk-quote-text{font-size:16px}.chk-meta{gap:22px}}