:root{color-scheme:dark;--bg: #0a0b10;--card: rgba(22, 24, 32, .88);--border: rgba(255, 255, 255, .08);--text: #f3f4f6;--muted: rgba(255, 255, 255, .62);--gold: #f1d79b;--gold-strong: #e8b84a;--good: #34d399;--warn: #fbbf24;--bad: #f87171}*{box-sizing:border-box}html,body{margin:0;min-height:100%;background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,PingFang SC,Microsoft YaHei,sans-serif}body,#app{min-height:100vh;min-height:100dvh}.page{position:relative;overflow:hidden;min-height:100vh;min-height:100dvh;padding:calc(24px + env(safe-area-inset-top,0px)) 20px calc(28px + env(safe-area-inset-bottom,0px));max-width:520px;margin:0 auto}.glow{position:absolute;border-radius:50%;filter:blur(80px);pointer-events:none}.glow-a{width:280px;height:280px;top:-80px;right:-60px;background:rgba(232,184,74,.18)}.glow-b{width:220px;height:220px;bottom:10%;left:-70px;background:rgba(99,102,241,.12)}.hero{position:relative;z-index:1;text-align:center;margin-bottom:28px}.eyebrow{margin:0 0 8px;font-size:13px;letter-spacing:.24em;color:var(--gold)}.hero h1{margin:0 0 10px;font-size:clamp(26px,7vw,32px);font-weight:700}.subtitle{margin:0;font-size:14px;line-height:1.6;color:var(--muted)}.lines{position:relative;z-index:1;display:grid;gap:16px}.line-card{padding:18px;border-radius:18px;background:var(--card);border:1px solid var(--border);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);transition:border-color .2s ease,transform .2s ease}.line-card.recommended{border-color:#f1d79b73;box-shadow:0 0 0 1px #f1d79b1f,0 12px 40px #00000047}.line-head{display:flex;align-items:flex-start;justify-content:space-between;gap:12px;margin-bottom:14px}.line-head h2{margin:0 0 4px;font-size:18px}.domain{margin:0;font-size:13px;color:var(--muted)}.badge{flex-shrink:0;padding:4px 10px;border-radius:999px;font-size:12px;color:#1a1408;background:linear-gradient(135deg,var(--gold) 0%,var(--gold-strong) 100%)}.latency{display:flex;align-items:center;justify-content:center;min-height:52px;margin-bottom:14px;border-radius:12px;background:rgba(255,255,255,.04);font-size:22px;font-weight:700;font-variant-numeric:tabular-nums}.latency.testing,.latency.pending{font-size:15px;font-weight:500;color:var(--muted)}.latency.good .latency-value{color:var(--good)}.latency.warn .latency-value{color:var(--warn)}.latency.bad .latency-value,.latency.fail .latency-value{color:var(--bad)}.enter-btn,.retest-btn{width:100%;border:none;border-radius:12px;font-size:16px;font-weight:600;cursor:pointer;transition:transform .15s ease,opacity .15s ease}.enter-btn{padding:14px 16px;color:#1a1408;background:linear-gradient(135deg,var(--gold) 0%,var(--gold-strong) 100%)}.enter-btn:active:not(:disabled){transform:scale(.98)}.enter-btn:disabled{opacity:.55;cursor:not-allowed}.footer{position:relative;z-index:1;margin-top:24px;text-align:center}.retest-btn{padding:12px 16px;margin-bottom:12px;color:var(--text);background:rgba(255,255,255,.06);border:1px solid var(--border)}.retest-btn:disabled{opacity:.6;cursor:not-allowed}.tip{margin:0;font-size:12px;line-height:1.6;color:var(--muted)}@media (min-width: 640px){.page{padding-top:48px}}