:root{
  --bg:#14110e; --card:#1f1a15; --card2:#272019; --fg:#f5ede2; --sub:#a99280;
  --main:#ff9d3c; --main-dim:#5c3d18; --danger:#ff5a5a; --ok:#4ce08a;
}
*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}
html,body{margin:0;height:100%}
body{
  background:var(--bg); color:var(--fg); font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",sans-serif;
  overscroll-behavior:none;
}
#app{max-width:520px;margin:0 auto;min-height:100%;position:relative;padding-bottom:74px}
.page{display:none;padding:16px}
.page.active{display:block}
.hd{padding:8px 4px 16px;display:flex;align-items:center;gap:10px}
.hd h1{font-size:19px;margin:0;font-weight:600}
.acct{
  width:100%;background:var(--card);color:var(--fg);border:1px solid #3a2f24;border-radius:12px;
  padding:12px 14px;font-size:15px;appearance:none;
}
.ring-wrap{position:relative;width:218px;height:218px;margin:20px auto 8px;display:flex;align-items:center;justify-content:center}
.ring{position:absolute;inset:0;width:100%;height:100%;transform:rotate(-90deg)}
.ring-bg{fill:none;stroke:#2c241c;stroke-width:9}
.ring-fg{fill:none;stroke:var(--main);stroke-width:9;stroke-linecap:round;
  stroke-dasharray:615.75;stroke-dashoffset:0;transition:stroke-dashoffset .3s linear}
.code-box{text-align:center;z-index:1}
.code{font-size:34px;font-weight:700;letter-spacing:4px;color:var(--main);font-variant-numeric:tabular-nums;cursor:pointer}
.secs{color:var(--sub);font-size:14px;margin-top:6px}
.hint{text-align:center;color:var(--sub);font-size:13px;margin-top:14px}
.scan-wrap{position:relative;width:100%;aspect-ratio:1;background:#000;border-radius:18px;overflow:hidden}
#scanVideo{width:100%;height:100%;object-fit:cover}
.scan-frame{position:absolute;inset:14%;border:3px solid var(--main);border-radius:14px;box-shadow:0 0 0 9999px rgba(0,0,0,.35)}
.card{background:var(--card);border-radius:16px;padding:14px 16px;margin:14px 0;border:1px solid #2b231b}
.card-title{color:var(--sub);font-size:13px;margin-bottom:10px}
.kv{display:flex;justify-content:space-between;padding:7px 0;font-size:15px}
.kv span{color:var(--sub)}
.dev-list{font-size:14px;color:var(--fg)}
.dev-item{padding:8px 0;border-bottom:1px solid #2b231b}
.dev-item:last-child{border-bottom:none}
.dev-item .t{color:var(--sub);font-size:12px;margin-top:3px}
.btn{
  width:100%;padding:13px;border-radius:12px;border:none;font-size:15px;font-weight:600;
  background:var(--main);color:#241505;margin-top:10px;cursor:pointer;
}
.btn.ghost{background:var(--card2);color:var(--fg);border:1px solid #3a2f24}
.btn.danger{background:transparent;color:var(--danger);border:1px solid #5a2b2b}
.backup-box{display:grid;grid-template-columns:1fr 1fr;gap:8px;margin-top:12px;font-family:ui-monospace,monospace;font-size:13px}
.backup-box div{background:var(--card2);padding:8px;border-radius:8px;text-align:center}
.ver{text-align:center;color:#5c5045;font-size:12px;padding:18px 0}
.tabs{
  position:fixed;bottom:0;left:0;right:0;max-width:520px;margin:0 auto;
  display:flex;background:#1a1510;border-top:1px solid #2b231b;padding:6px 0 calc(6px + env(safe-area-inset-bottom));
}
.tab{flex:1;background:none;border:none;color:var(--sub);font-size:12px;display:flex;flex-direction:column;align-items:center;gap:2px;padding:6px 0;cursor:pointer}
.tab i{font-style:normal;font-size:17px}
.tab.active{color:var(--main)}
.modal{position:fixed;inset:0;background:rgba(10,8,6,.74);-webkit-backdrop-filter:blur(7px);backdrop-filter:blur(7px);display:none;align-items:center;justify-content:center;padding:22px;z-index:50}
.modal.show{display:flex;animation:mFade .18s ease}
.modal-card{position:relative;background:linear-gradient(180deg,#241d16,#191410);border:1px solid rgba(255,157,60,.22);border-radius:22px;padding:24px 20px 18px;width:100%;max-width:342px;text-align:center;box-shadow:0 28px 70px rgba(0,0,0,.62),inset 0 1px 0 rgba(255,255,255,.045);animation:mPop .24s cubic-bezier(.2,.9,.3,1.25)}
.modal-ic{width:56px;height:56px;margin:0 auto 13px;border-radius:18px;background:linear-gradient(135deg,var(--main),#e07d1f);display:flex;align-items:center;justify-content:center;box-shadow:0 10px 26px rgba(255,157,60,.3)}
.modal-card h3{margin:0 0 14px;font-size:18.5px;font-weight:700;letter-spacing:.5px;color:var(--fg)}
.modal-info{background:rgba(0,0,0,.3);border:1px solid #2b231b;border-radius:14px;padding:12px 14px;font-size:13.5px;line-height:1.85;color:var(--fg);text-align:left;word-break:break-all}
.modal-info b,.modal-info strong{color:var(--main)}
.modal-tip{color:var(--sub);font-size:12px;line-height:1.65;margin:12px 0 0}
.modal-btns{display:flex;gap:10px;margin-top:16px}
.modal-btns .btn{flex:1;margin-top:0;padding:14px}
@keyframes mFade{from{opacity:0}to{opacity:1}}
@keyframes mPop{from{opacity:0;transform:scale(.92) translateY(10px)}to{opacity:1;transform:none}}
.toast{
  position:fixed;left:50%;bottom:96px;transform:translateX(-50%);background:#2e261d;color:var(--fg);
  padding:11px 20px;border-radius:24px;font-size:14px;opacity:0;transition:opacity .25s;z-index:60;pointer-events:none;max-width:88%;text-align:center
}
.toast.show{opacity:1}