:root{--ink:#1c1c1e;--sub:#636366;--blue:#007aff;--amber:#ff9f0a;--red:#d70015;--ok:#34c759}
*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}
html{-webkit-text-size-adjust:100%}
body{margin:0;min-height:100vh;color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"SF Pro Text","PingFang SC","Microsoft YaHei",sans-serif;line-height:1.55;
 background:radial-gradient(1100px 520px at 12% -8%,#ffe9a8 0,transparent 60%),radial-gradient(900px 480px at 100% 6%,#cfe4ff 0,transparent 58%),radial-gradient(800px 600px at 50% 110%,#e6dcff 0,transparent 60%),#f4f4f8;background-attachment:fixed}
.wrap{max-width:520px;margin:0 auto;padding:22px 16px 44px}
.hero{text-align:center;padding:10px 4px 6px}
.hero .logo{width:68px;height:68px;margin:0 auto 10px;border-radius:20px;display:grid;place-items:center;font-size:36px;background:linear-gradient(145deg,#ffd75e,#ff9f0a);box-shadow:0 10px 26px rgba(255,159,10,.38),inset 0 1px 0 rgba(255,255,255,.6)}
.hero h1{margin:0;font-size:26px;letter-spacing:.01em}
.hero p{margin:6px 0 0;font-size:14px;color:var(--sub)}
.glass{background:rgba(255,255,255,.62);-webkit-backdrop-filter:saturate(180%) blur(24px);backdrop-filter:saturate(180%) blur(24px);border:1px solid rgba(255,255,255,.7);border-radius:24px;box-shadow:0 1px 2px rgba(0,0,0,.04),0 12px 32px rgba(60,60,100,.12)}
.cta{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin:18px 0 6px}
.cta a{display:block;text-decoration:none;color:var(--ink);padding:16px 14px;text-align:left}
.cta a:active{transform:scale(.98)}
.cta .ic{font-size:26px;line-height:1}
.cta b{display:block;margin-top:8px;font-size:16px}
.cta span{display:block;font-size:12px;color:var(--sub);margin-top:2px}
.cta a.and{background:linear-gradient(160deg,rgba(52,199,89,.28),rgba(255,255,255,.6))}
.cta a.ios{background:linear-gradient(160deg,rgba(0,122,255,.22),rgba(255,255,255,.6))}
section{margin:14px 0;padding:16px 16px 14px}
section h2{margin:0 0 10px;font-size:17px}
.st{list-style:none;margin:0;padding:0;counter-reset:s}
.st li{position:relative;padding:8px 0 8px 36px;font-size:14px;border-top:1px solid rgba(60,60,67,.1)}
.st li:first-child{border-top:0}
.st li::before{counter-increment:s;content:counter(s);position:absolute;left:0;top:9px;width:24px;height:24px;border-radius:50%;background:var(--ink);color:#fff;font-size:12px;font-weight:700;display:grid;place-items:center}
.st b{font-weight:650}
.tips{margin:0;padding:0;list-style:none}
.tips li{font-size:14px;padding:6px 0 6px 22px;position:relative}
.tips li::before{content:"•";position:absolute;left:8px;color:var(--amber);font-weight:900}
.tips li.w{color:var(--red);font-weight:650}
.bold{font-weight:700}
details.ex{margin:10px 0 0}
details.ex summary{cursor:pointer;list-style:none;color:var(--blue);font-size:14px;font-weight:600;padding:6px 0}
details.ex summary::-webkit-details-marker{display:none}
details.ex summary::after{content:" ▾"}
details.ex[open] summary::after{content:" ▴"}
.exg{display:grid;gap:12px;margin-top:6px}
.exg figure{margin:0}
.exg img{display:block;width:100%;height:auto;border-radius:16px;box-shadow:0 1px 3px rgba(0,0,0,.1)}
.lab{display:inline-block;margin:0 0 6px;padding:2px 9px;border-radius:999px;font-size:11px;font-weight:700}
.lab.ok{color:#0b7a32;background:rgba(52,199,89,.2)}.lab.bad{color:#fff;background:var(--red)}
.order{margin:10px 2px 0;font-size:12px;color:var(--sub);text-align:center}
.foot{text-align:center;font-size:12px;color:#8e8e93;margin-top:18px}
a{color:var(--blue)}

.cta-note{margin:4px 2px 12px;font-size:12px;line-height:1.45;color:var(--sub);text-align:center}
.cta a{cursor:pointer}

.nb{border:1px solid rgba(255,159,10,.35);background:linear-gradient(160deg,rgba(255,204,0,.22),rgba(255,255,255,.7))}
.nb-inv{display:flex;align-items:center;justify-content:space-between;gap:10px;margin:0 0 12px;padding:12px 14px;border-radius:16px;background:rgba(255,255,255,.72);border:1px solid rgba(255,184,0,.4)}
.nb-inv span{font-size:13px;color:var(--sub);font-weight:600}
.nb-inv strong{font-size:22px;letter-spacing:.12em;font-variant-numeric:tabular-nums;color:#9a5b00;cursor:pointer;user-select:all;-webkit-user-select:all}
.nb-body{font-size:14px;line-height:1.55}
.nb-body .ntt{font-weight:700;font-size:15px;margin:0 0 6px}
.nb-body .ln{margin:4px 0}
.nb-body .lnw{font-weight:700;color:var(--red);margin:6px 0}
.nb-body details{margin-top:10px}
.nb-body summary{cursor:pointer;color:var(--blue);font-weight:650;font-size:14px;list-style:none}
.nb-body summary::-webkit-details-marker{display:none}
.nb-body summary::after{content:" ▾"}
.nb-body details[open] summary::after{content:" ▴"}
.nb-body .muted{color:var(--sub);font-size:13px}

.nb-tip{margin-left:8px;font-size:12px;font-weight:600;color:#1a7f37}
.nb-body a{color:var(--blue);font-weight:650;word-break:break-all}

.via{position:relative;margin:16px 0 4px;background:linear-gradient(160deg,rgba(255,149,0,.2),rgba(255,255,255,.7));border:1px solid rgba(255,149,0,.45)}
.via .hot{display:inline-block;padding:3px 12px;border-radius:999px;background:linear-gradient(90deg,#ffb340,#ffd78a);color:#6b4500;font-size:12px;font-weight:700;margin-bottom:6px}
.via h2{margin:0 0 4px;font-size:18px}
.via p{margin:0 0 10px;font-size:13px;color:var(--sub)}
.vbtn{display:grid;gap:8px}
.vb{display:block;text-align:center;text-decoration:none;font-weight:800;font-size:17px;padding:13px;border-radius:16px;color:#fff;background:var(--blue);box-shadow:0 8px 20px rgba(0,122,255,.3)}
.vb.g{background:#2fb36b;box-shadow:0 8px 20px rgba(47,179,107,.28);font-size:15px;padding:10px}
.vb:active{transform:scale(.98)}

.via[hidden]{display:none}
.nb-toast{position:fixed;left:50%;bottom:calc(28px + env(safe-area-inset-bottom));transform:translateX(-50%) translateY(20px);opacity:0;pointer-events:none;background:rgba(28,28,30,.92);color:#fff;font-size:14px;padding:10px 18px;border-radius:999px;transition:opacity .2s,transform .2s;z-index:50}
.nb-toast.on{opacity:1;transform:translateX(-50%) translateY(0)}
.nb-body a.lk{display:inline-block;margin:0 2px}