:root{--bg:#0E0E10;--fg:#F5F1E8;--muted:#8A8A8E;--gold:#E8B84A;--blue:#7FB3E6;--red:#E5484D;--line:#232326;--panel:#151517;--max:980px}*{box-sizing:border-box;margin:0;padding:0}html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}body{background:var(--bg);color:var(--fg);font-family:Inter,-apple-system,SF Pro Text,PingFang SC,Source Han Sans SC,Noto Sans SC,sans-serif;line-height:1.7;font-size:17px;min-height:100vh;display:flex;flex-direction:column}a{color:var(--gold);text-decoration:none}a:hover{text-decoration:underline}footer,header,main{width:100%;max-width:var(--max);margin:0 auto;padding:0 24px}header{padding-top:36px;padding-bottom:20px;justify-content:space-between}.brand,header{display:flex;align-items:center}.brand{gap:10px;color:var(--fg);font-weight:600;letter-spacing:.02em}.brand:hover{text-decoration:none}nav a{color:var(--muted);margin-left:20px;font-size:15px}nav a:hover{color:var(--fg);text-decoration:none}main{flex:1 1;padding-bottom:64px}h1{font-size:34px;line-height:1.25;margin:32px 0 12px}h1,h2{font-weight:600}h2{font-size:22px;margin:0 0 12px}p{margin:0 0 16px}ul{margin:0 0 16px 22px}li{margin-bottom:6px}.lead{font-size:19px;color:var(--fg)}.muted{color:var(--muted)}.small,footer{font-size:14px}footer{border-top:1px solid var(--line);padding:24px;display:flex;flex-wrap:wrap;gap:8px 20px;justify-content:space-between}footer,footer a{color:var(--muted)}footer a:hover{color:var(--fg)}.updated{color:var(--muted);font-size:14px;margin-bottom:32px}article{max-width:660px;margin:0 auto}article h1{font-size:30px}article h2{font-size:19px;margin-top:36px}.landing section{margin:72px 0}.landing .hero{margin-top:28px;display:grid;grid-template-columns:1.25fr 1fr;grid-gap:40px;gap:40px;align-items:center}.hero h1{font-size:46px;line-height:1.3;margin:0 0 18px}.hero h1 em{font-style:normal;color:var(--gold)}.hero-dog img{width:100%;max-width:330px;display:block;margin:0 auto;filter:drop-shadow(0 0 60px 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1.1fr;grid-gap:48px;gap:48px}.demo.reverse{grid-template-columns:1.1fr 1fr}.demo.reverse .phone{order:2}.demo.reverse .demo-text{order:1}.phone{background:var(--panel);border:1px solid var(--line);border-radius:32px;padding:28px 26px;box-shadow:0 24px 80px rgba(0,0,0,.5)}.phone-status{display:flex;align-items:center;gap:10px;margin-bottom:20px;font-size:13px;color:var(--muted)}.phone-status .dot{width:9px;height:9px;border-radius:50%;background:var(--red);animation:pulse 1.4s ease-in-out infinite}.phone-status .grow{flex:1 1}.phone-status .toggle{color:var(--gold);font-weight:700}@keyframes pulse{0%,to{opacity:1}50%{opacity:.3}}.cap-row{margin-bottom:20px}.cap-zh{font-size:20px;line-height:1.45;font-weight:500}.cap-en{font-size:13.5px;line-height:1.4;color:var(--muted);margin-top:4px}.cap-en.interim{color:var(--blue);animation:pulse 1.6s ease-in-out infinite}.phone-stop{margin:6px auto 0;width:-moz-fit-content;width:fit-content;border:2px solid var(--red);color:var(--red);border-radius:22px;padding:7px 34px;font-size:15px;font-weight:600}.ticks{list-style:none;margin-left:0}.ticks li{padding-left:26px;position:relative;margin-bottom:10px}.ticks li:before{content:"✓";position:absolute;left:0;color:var(--gold);font-weight:700}.sum-card{background:rgba(255,255,255,.05);border-radius:18px;padding:20px 22px}.sum-title{color:var(--gold);font-size:13px;font-weight:700;letter-spacing:.12em;margin:12px 0 6px}.sum-title:first-child{margin-top:0}.sum-li{font-size:15.5px;line-height:1.6}.sum-note{color:var(--muted);font-size:13px;margin:14px 4px 0}.scene-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(210px,1fr));grid-gap:16px;gap:16px;margin-top:20px}.scene{background:var(--panel);border:1px solid var(--line);border-radius:18px;padding:20px}.scene b{display:block;margin-bottom:6px}.scene p{margin:0;font-size:14.5px;color:var(--muted)}.privacy-band{border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:48px 0}.price-grid,.privacy-band .small{margin-top:20px}.price-grid{display:grid;grid-template-columns:1fr 1fr;grid-gap:16px;gap:16px;max-width:640px}.price-card{background:var(--panel);border:1px solid var(--line);border-radius:18px;padding:24px}.price-card.gold-border{border-color:rgba(232,184,74,.5)}.price-num{font-size:24px;font-weight:700;margin:6px 0 8px}.save{display:inline-block;background:var(--gold);color:#0E0E10;font-size:11px;font-weight:700;border-radius:999px;padding:3px 9px;vertical-align:middle;margin-left:6px}.price-card .muted{font-size:14px;margin:0}.tiny{font-size:12px;color:#6d6d72}.hl{color:var(--gold);font-weight:600}.final-cta{text-align:center;padding-bottom:8px}@media (max-width:760px){.landing .hero{grid-template-columns:1fr;text-align:left}.hero h1{font-size:34px}.hero-dog img{max-width:200px;margin:8px auto 0}.demo,.demo.reverse{grid-template-columns:1fr}.demo.reverse .phone{order:1}.demo.reverse .demo-text{order:2}.price-grid{grid-template-columns:1fr}h1{font-size:28px}body{font-size:16px}.landing section{margin:52px 0}}