*{box-sizing:border-box}:root{font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,PingFang SC,Microsoft YaHei,sans-serif;color:#172033;background:#f5f7fb;font-synthesis:none}:root[data-theme=dark]{color:#edf2f7;background:#0d1117}body{margin:0;min-width:320px}button,a{font:inherit}button{cursor:pointer}.page{min-height:100vh;display:flex;flex-direction:column}.topbar{height:68px;display:flex;align-items:center;justify-content:space-between;padding:0 6vw;border-bottom:1px solid rgba(127,140,160,.16);background:#ffffffb8;-webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);position:sticky;top:0;z-index:10}[data-theme=dark] .topbar{background:#0d1117c7}.brand{display:flex;align-items:center;gap:10px;font-weight:800;letter-spacing:.12em;font-size:14px}.brand-icon{width:30px;height:30px;border-radius:9px;display:grid;place-items:center;background:#172033;color:#fff}[data-theme=dark] .brand-icon{background:#f3f6fb;color:#172033}.actions{display:flex;gap:8px}.icon-btn,.lang-btn{border:1px solid rgba(127,140,160,.22);background:transparent;color:inherit;border-radius:10px;height:38px;min-width:38px;padding:0 12px}.lang-btn{font-weight:700;font-size:12px}.container{width:min(880px,calc(100% - 32px));margin:0 auto;flex:1}.hero{text-align:center;padding:72px 0 30px}.status-dot{width:10px;height:10px;border-radius:50%;background:#20b26b;margin:0 auto 18px;box-shadow:0 0 0 7px #20b26b1a}h1{margin:0;font-size:clamp(30px,5vw,48px);letter-spacing:-.04em}.hero p{color:#758197;margin:14px 0 0;font-size:16px}[data-theme=dark] .hero p,[data-theme=dark] .description,[data-theme=dark] .last-checked{color:#8d99aa}.notice{display:flex;gap:10px;align-items:center;padding:13px 16px;margin-bottom:18px;border:1px solid rgba(90,110,140,.15);border-radius:14px;color:#68758a;font-size:13px;background:#fff9}[data-theme=dark] .notice{background:#ffffff09;color:#9aa7b8}.address-list{display:grid;gap:14px}.address-card{display:grid;grid-template-columns:1fr auto;gap:18px;padding:24px;background:#ffffffd1;border:1px solid rgba(120,140,170,.16);border-radius:18px;box-shadow:0 8px 30px #1f2d460d}[data-theme=dark] .address-card{background:#151b24;border-color:#ffffff12;box-shadow:none}.card-title-row{display:flex;align-items:center;gap:9px;flex-wrap:wrap}h2{margin:0;font-size:18px}.recommended{font-size:11px;padding:4px 8px;border-radius:999px;background:#20b26b1a;color:#16945a;font-weight:700}.description{color:#7b879a;font-size:13px;margin:7px 0 14px}.url{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:13px;word-break:break-all;color:#5f6d82}[data-theme=dark] .url{color:#aeb9c9}.card-status{text-align:right;min-width:130px}.status-line{display:flex;justify-content:flex-end;align-items:center;gap:7px;font-size:13px;font-weight:700}.pulse{width:8px;height:8px;border-radius:50%;background:#a4adba}.pulse.online{background:#20b26b;box-shadow:0 0 0 5px #20b26b1a}.pulse.offline{background:#e05252;box-shadow:0 0 0 5px #e052521a}.pulse.checking{background:#e0a52f;animation:blink 1s infinite}.latency{color:#7d899b;font-size:12px;margin-top:11px}.latency strong{color:inherit}.card-actions{grid-column:1 / -1;display:flex;gap:10px;border-top:1px solid rgba(127,140,160,.12);padding-top:17px}.card-actions button,.card-actions a{flex:1;text-align:center;padding:11px 14px;border-radius:10px;text-decoration:none;font-weight:700;font-size:13px}.secondary{color:inherit;background:transparent;border:1px solid rgba(127,140,160,.22)}.primary{color:#fff;background:#172033;border:1px solid #172033}[data-theme=dark] .primary{color:#172033;background:#f3f6fb;border-color:#f3f6fb}.refresh-row{display:flex;justify-content:center;align-items:center;gap:12px;margin:28px 0 50px}.refresh-btn{border:0;background:transparent;color:#66748a;font-weight:700;font-size:13px;padding:10px}.refresh-btn:disabled{opacity:.6;cursor:wait}.last-checked{color:#9aa4b3;font-size:12px}footer{text-align:center;padding:22px 16px 30px;color:#8995a6;font-size:12px}.spin{display:inline-block;animation:spin 1s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}@keyframes blink{50%{opacity:.35}}@media(max-width:640px){.topbar{padding:0 18px}.hero{padding:54px 0 24px}.address-card{grid-template-columns:1fr;padding:20px}.card-status{text-align:left;min-width:0;display:flex;gap:18px;align-items:center}.status-line{justify-content:flex-start}.latency{margin-top:0}.card-actions{grid-column:auto}}