.stats-summary{display:flex;gap:16px;margin:20px 0}.stat-item{flex:1;background:#fff;padding:16px;border-radius:8px;text-align:center;box-shadow:0 1px 4px #0000000f}.stat-label{display:block;font-size:13px;color:#999;margin-bottom:4px}.stat-value{display:block;font-size:24px;font-weight:700;color:#4a90d9}.ping-results-table-wrap{overflow-x:auto}.chart-container{background:#fff;border-radius:8px;padding:16px;margin-bottom:20px;box-shadow:0 1px 4px #0000000f}.tabs{display:flex;gap:8px;margin-bottom:16px}.tab-btn{padding:8px 20px;border:1px solid #d9d9d9;border-radius:4px;background:#fff;cursor:pointer;font-size:14px}.tab-btn.active{background:#4a90d9;color:#fff;border-color:#4a90d9}.auth-page{display:flex;justify-content:center;padding:60px 0}.auth-card{background:#fff;padding:40px;border-radius:8px;box-shadow:0 2px 12px #00000014;width:400px;max-width:100%}.auth-card h1{font-size:24px;margin-bottom:24px;text-align:center}.auth-link{text-align:center;margin-top:16px;font-size:14px;color:#666}.captcha-field{display:flex;align-items:center;gap:8px;margin-bottom:16px}.captcha-field .captcha-input{flex:1 1 auto;min-width:0;height:40px;padding:0 12px;border:1px solid #dbe2e8;border-radius:6px;font-size:14px;box-sizing:border-box}.captcha-field .captcha-input:focus{outline:none;border-color:#1f6feb}.captcha-img-wrap{flex:0 0 120px;width:120px;height:44px;border:1px solid #dbe2e8;border-radius:6px;overflow:hidden;cursor:pointer;background:#f3f6f9;display:flex;align-items:center;justify-content:center}.captcha-img-wrap .captcha-img{width:120px;height:44px;display:block}.captcha-img-wrap.captcha-loading{opacity:.5}.captcha-img-wrap.captcha-error{border-color:#d64545}.captcha-img-wrap.captcha-error:after{content:"\91cd\8bd5";font-size:12px;color:#d64545}