:root{
  --text:#111827;--text2:rgba(17,24,39,.58);--text3:rgba(17,24,39,.32);
  --blue:#0a7aff;--blue2:#5e5ce6;--green:#16a34a;--red:#e5342b;--orange:#d97706;
  --glass:rgba(255,255,255,.52);--glass-strong:rgba(255,255,255,.72);--glass-brd:rgba(255,255,255,.75);
  --glass-shadow:0 8px 32px rgba(31,53,120,.12),0 1px 2px rgba(31,53,120,.06);
  --inner:inset 0 1px 0 rgba(255,255,255,.9),inset 0 -1px 0 rgba(255,255,255,.25);
  --fill:rgba(120,130,160,.14);--sep:rgba(60,70,100,.12);
  --bg1:#dfe9ff;--bg2:#f3e8ff;--bg3:#e0f7f4;
  --blob1:#7aa7ff;--blob2:#c79bff;--blob3:#6fe0d2;
  --font:-apple-system,BlinkMacSystemFont,"SF Pro Display","SF Pro Text","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,sans-serif;
}
:root[data-theme=dark]{
  --text:#f5f7ff;--text2:rgba(235,240,255,.62);--text3:rgba(235,240,255,.32);
  --blue:#4da3ff;--blue2:#8b8bff;--green:#4ade80;--red:#ff6b61;--orange:#fbbf24;
  --glass:rgba(40,46,70,.46);--glass-strong:rgba(48,56,86,.7);--glass-brd:rgba(255,255,255,.14);
  --glass-shadow:0 10px 36px rgba(0,0,0,.42),0 1px 2px rgba(0,0,0,.3);
  --inner:inset 0 1px 0 rgba(255,255,255,.16),inset 0 -1px 0 rgba(255,255,255,.04);
  --fill:rgba(160,170,210,.16);--sep:rgba(255,255,255,.1);
  --bg1:#0b1020;--bg2:#161033;--bg3:#07221f;
  --blob1:#2850c8;--blob2:#6a35c9;--blob3:#12857a;
}
@media (prefers-color-scheme:dark){
  :root[data-theme=auto]{
    --text:#f5f7ff;--text2:rgba(235,240,255,.62);--text3:rgba(235,240,255,.32);
    --blue:#4da3ff;--blue2:#8b8bff;--green:#4ade80;--red:#ff6b61;--orange:#fbbf24;
    --glass:rgba(40,46,70,.46);--glass-strong:rgba(48,56,86,.7);--glass-brd:rgba(255,255,255,.14);
    --glass-shadow:0 10px 36px rgba(0,0,0,.42),0 1px 2px rgba(0,0,0,.3);
    --inner:inset 0 1px 0 rgba(255,255,255,.16),inset 0 -1px 0 rgba(255,255,255,.04);
    --fill:rgba(160,170,210,.16);--sep:rgba(255,255,255,.1);
    --bg1:#0b1020;--bg2:#161033;--bg3:#07221f;--blob1:#2850c8;--blob2:#6a35c9;--blob3:#12857a}
}
*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}
html{-webkit-text-size-adjust:100%;color-scheme:light}
html[data-theme=dark]{color-scheme:dark}
body{margin:0;min-height:100vh;color:var(--text);font:17px/1.4 var(--font);-webkit-font-smoothing:antialiased;
  background:linear-gradient(160deg,var(--bg1),var(--bg2) 55%,var(--bg3));background-attachment:fixed}
[hidden]{display:none!important}
button,input{font:inherit;color:inherit}
button{cursor:pointer;border:0;background:none}

.bg{position:fixed;inset:0;z-index:-1;overflow:hidden;pointer-events:none}
.bg i{position:absolute;border-radius:50%;filter:blur(70px);opacity:.55}
.b1{width:60vmax;height:60vmax;left:-20vmax;top:-18vmax;background:var(--blob1)}
.b2{width:50vmax;height:50vmax;right:-18vmax;top:22vh;background:var(--blob2)}
.b3{width:55vmax;height:55vmax;left:5vmax;bottom:-30vmax;background:var(--blob3)}

.glass{background:var(--glass);border:1px solid var(--glass-brd);box-shadow:var(--glass-shadow),var(--inner);
  -webkit-backdrop-filter:blur(28px) saturate(185%);backdrop-filter:blur(28px) saturate(185%)}
@supports not ((backdrop-filter:blur(1px)) or (-webkit-backdrop-filter:blur(1px))){.glass{background:var(--glass-strong)}}

.topbar{position:fixed;top:calc(10px + env(safe-area-inset-top));left:0;right:0;z-index:20;display:flex;justify-content:center;pointer-events:none}
.pill{padding:8px 20px;border-radius:999px;font-size:15px;font-weight:600;opacity:0;transform:translateY(-8px);transition:.25s}
.topbar.on .pill{opacity:1;transform:none}

.page{max-width:560px;margin:0 auto;padding:calc(18px + env(safe-area-inset-top)) 16px calc(48px + env(safe-area-inset-bottom))}
.hero{padding:20px 6px 14px}
.hero h1{margin:0;font-size:36px;line-height:1.1;font-weight:800;letter-spacing:-.3px}
.hero p{margin:6px 0 0;color:var(--text2);font-size:14px}
.card{border-radius:28px;margin-bottom:14px;overflow:hidden}
.row{display:flex;align-items:center;justify-content:space-between;gap:12px;min-height:60px;padding:8px 16px 8px 20px;position:relative}
.row+.row::before{content:"";position:absolute;top:0;left:20px;right:20px;height:1px;background:var(--sep)}
.lbl{font-weight:500;white-space:nowrap}
.sec{margin:26px 10px 10px;font-size:13px;font-weight:600;color:var(--text2);letter-spacing:.3px}
.foot{margin:-4px 12px 14px;font-size:12.5px;color:var(--text2)}
.foot.center{text-align:center;margin-top:28px}
.foot p{margin:4px 0}

.chip{display:inline-flex;align-items:center;gap:8px;max-width:68%;padding:9px 14px 9px 16px;border-radius:999px;background:var(--fill);
  color:var(--blue);font-weight:600;transition:transform .15s,background .15s;box-shadow:var(--inner)}
.chip span{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.chip svg{width:7px;height:12px;flex:none;fill:none;stroke:currentColor;stroke-width:2.2;stroke-linecap:round;stroke-linejoin:round;opacity:.6}
.chip:active{transform:scale(.96)}
.chip:hover{background:color-mix(in srgb,var(--fill) 70%,var(--blue) 14%)}
:focus-visible{outline:2px solid var(--blue);outline-offset:2px}

.field,.dims{display:inline-flex;align-items:center;gap:8px;padding:0 6px 0 16px;border-radius:999px;background:var(--fill);box-shadow:var(--inner);height:44px;min-width:0}
.field input{width:130px;text-align:right;background:none;border:0;outline:0;font-size:19px;font-weight:600;font-variant-numeric:tabular-nums;min-width:0}
.field em,.dims em{font-style:normal;color:var(--text2);font-size:14px;padding-right:10px}
.dims{padding:0 4px 0 6px;gap:4px}
.dims input{width:52px;min-width:0;text-align:center;background:none;border:0;outline:0;font-weight:600;font-variant-numeric:tabular-nums}
.dims b{color:var(--text3);font-weight:400}
.field:focus-within,.dims:focus-within{box-shadow:var(--inner),0 0 0 2px var(--blue)}
input::placeholder{color:var(--text3);font-weight:400}
input[type=number]{-moz-appearance:textfield}
input::-webkit-outer-spin-button,input::-webkit-inner-spin-button{-webkit-appearance:none;margin:0}
input:-webkit-autofill{-webkit-text-fill-color:var(--text)}

.stepper{display:inline-flex;align-items:center;border-radius:999px;background:var(--fill);box-shadow:var(--inner);height:44px;overflow:hidden}
.stepper button{width:48px;height:44px;font-size:22px;color:var(--blue)}
.stepper button:active{background:var(--sep)}
.stepper output{min-width:30px;text-align:center;font-weight:600;font-variant-numeric:tabular-nums}

.seg-row{padding:10px 14px}
.seg-row::before{display:none}
.seg{position:relative;display:grid;grid-auto-flow:column;grid-auto-columns:1fr;width:100%;padding:4px;border-radius:999px;background:var(--fill);box-shadow:var(--inner)}
.seg .thumb{position:absolute;top:4px;bottom:4px;left:4px;width:calc((100% - 8px)/var(--n,1));border-radius:999px;
  transform:translateX(calc(var(--i,0)*100%));transition:transform .32s cubic-bezier(.3,1.3,.5,1);
  background:var(--glass-strong);box-shadow:0 2px 10px rgba(30,50,110,.18),inset 0 1px 0 rgba(255,255,255,.9)}
:root[data-theme=dark] .seg .thumb{background:rgba(255,255,255,.2);box-shadow:0 2px 10px rgba(0,0,0,.4),inset 0 1px 0 rgba(255,255,255,.25)}
.seg button{position:relative;z-index:1;padding:9px 6px;border-radius:999px;font-size:15px;font-weight:600;color:var(--text2);transition:color .2s}
.seg button[aria-selected=true]{color:var(--text)}

.result{padding:6px 0 18px}
.empty{padding:30px 20px;text-align:center;color:var(--text2)}
.empty svg{width:46px;height:46px;fill:none;stroke:var(--text3);stroke-width:2;stroke-linejoin:round;stroke-linecap:round}
.empty p{margin:8px 0 0}
.r-head{padding:20px 20px 10px;text-align:center}
.r-cap{font-size:13px;color:var(--text2)}
.r-price{margin:4px 0;font-size:54px;line-height:1.05;font-weight:800;letter-spacing:-1.2px;font-variant-numeric:tabular-nums;
  background:linear-gradient(135deg,var(--blue),var(--blue2));-webkit-background-clip:text;background-clip:text;color:transparent}
.r-sub{font-size:14px;color:var(--text2)}
.chips{display:flex;flex-wrap:wrap;gap:8px;justify-content:center;margin-top:14px}
.tag{padding:6px 12px;border-radius:999px;background:var(--fill);font-size:13px;font-weight:600;box-shadow:var(--inner)}
.alerts{padding:0 16px}
.alert{margin:8px 0;padding:10px 16px;border-radius:20px;font-size:13.5px;background:color-mix(in srgb,var(--orange) 16%,transparent);color:var(--orange)}
.alert.err{background:color-mix(in srgb,var(--red) 16%,transparent);color:var(--red)}
.bd{margin:10px 16px 0;padding:4px 0;border-radius:22px;background:var(--fill)}
.bd div{display:flex;justify-content:space-between;gap:14px;padding:10px 16px;font-size:15px;position:relative}
.bd div+div::before{content:"";position:absolute;top:0;left:16px;right:16px;height:1px;background:var(--sep)}
.bd dt{color:var(--text2)}
.bd dd{margin:0;text-align:right;font-weight:500;font-variant-numeric:tabular-nums}
.cta{display:block;width:calc(100% - 32px);margin:16px 16px 0;padding:15px;border-radius:999px;font-weight:700;color:#fff;
  background:linear-gradient(135deg,var(--blue),var(--blue2));box-shadow:0 8px 20px rgba(10,122,255,.32),inset 0 1px 0 rgba(255,255,255,.45);transition:transform .15s}
.cta:active{transform:scale(.97)}

.list{padding:6px}
.cmp{display:flex;align-items:center;justify-content:space-between;gap:12px;width:100%;padding:12px 14px;border-radius:22px;text-align:left;transition:background .15s}
.cmp:hover{background:var(--fill)}
.cmp.on{background:color-mix(in srgb,var(--blue) 14%,transparent)}
.cmp .t{display:block;font-weight:600;font-size:15px}
.cmp .s{display:block;font-size:12.5px;color:var(--text2)}
.cmp .p{padding:6px 12px;border-radius:999px;background:var(--fill);font-weight:700;font-variant-numeric:tabular-nums;white-space:nowrap;font-size:15px}
.cmp.best .p{background:color-mix(in srgb,var(--green) 18%,transparent);color:var(--green)}
.cmp .na{color:var(--text3);font-weight:500}
.notes{padding:18px 20px;font-size:14.5px;color:var(--text2);white-space:pre-line;line-height:1.55}

/* picker sheet */
.sheet-root{position:fixed;inset:0;z-index:50;display:flex;align-items:flex-end;justify-content:center}
.scrim{position:absolute;inset:0;background:rgba(15,20,40,.28);-webkit-backdrop-filter:blur(3px);backdrop-filter:blur(3px);animation:fade .25s both}
.sheet{position:relative;width:100%;max-width:560px;max-height:min(82vh,720px);display:flex;flex-direction:column;
  border-radius:34px 34px 0 0;padding-bottom:env(safe-area-inset-bottom);animation:rise .38s cubic-bezier(.2,.9,.25,1.05) both;
  background:var(--glass-strong)}
.sheet-root.closing .sheet{animation:drop .22s ease-in both}
.sheet-root.closing .scrim{animation:fadeout .22s both}
.grab{width:38px;height:5px;border-radius:3px;background:var(--text3);margin:9px auto 0}
.sheet-head{display:flex;align-items:center;justify-content:space-between;padding:10px 18px 6px 24px}
.sheet-head h3{margin:0;font-size:20px;font-weight:700}
.done{padding:8px 18px;border-radius:999px;background:var(--fill);color:var(--blue);font-weight:700;box-shadow:var(--inner)}
.done:active{transform:scale(.95)}
.search{display:flex;align-items:center;gap:8px;margin:6px 16px 8px;padding:0 16px;height:42px;border-radius:999px;background:var(--fill);box-shadow:var(--inner)}
.search svg{width:16px;height:16px;fill:none;stroke:var(--text2);stroke-width:2;stroke-linecap:round}
.search input{flex:1;min-width:0;background:none;border:0;outline:0;font-size:16px}
.sheet-list{overflow:auto;overscroll-behavior:contain;padding:2px 10px 16px;-webkit-overflow-scrolling:touch}
.grp{margin:12px 14px 6px;font-size:12px;font-weight:700;color:var(--text2);letter-spacing:.4px}
.opt{display:flex;align-items:center;justify-content:space-between;gap:12px;width:100%;padding:12px 16px;border-radius:999px;text-align:left;font-weight:500;transition:background .12s}
.opt:hover{background:var(--fill)}
.opt:active{background:var(--sep)}
.opt small{display:block;color:var(--text2);font-size:12.5px;font-weight:400}
.opt.on{background:color-mix(in srgb,var(--blue) 16%,transparent);color:var(--blue);font-weight:700}
.opt .ck{width:18px;height:18px;flex:none;fill:none;stroke:currentColor;stroke-width:2.6;stroke-linecap:round;stroke-linejoin:round;opacity:0}
.opt.on .ck{opacity:1}
.nores{padding:28px;text-align:center;color:var(--text2)}
@keyframes rise{from{transform:translateY(100%)}to{transform:none}}
@keyframes drop{to{transform:translateY(100%)}}
@keyframes fade{from{opacity:0}}
@keyframes fadeout{to{opacity:0}}
@media (min-width:700px){
  .sheet-root{align-items:center}
  .sheet{border-radius:34px;max-height:min(70vh,640px);padding-bottom:0;animation-name:pop}
  .sheet-root.closing .sheet{animation-name:popout}
  .grab{display:none}
  .sheet-head{padding-top:20px}
  .hero h1{font-size:42px}
}
@keyframes pop{from{opacity:0;transform:scale(.94)}to{opacity:1;transform:none}}
@keyframes popout{to{opacity:0;transform:scale(.96)}}
@media (prefers-reduced-motion:reduce){*,*::before{animation-duration:.01ms!important;transition-duration:.01ms!important}}
@media (max-width:380px){.r-price{font-size:44px}.field input{width:100px}.dims input{width:44px}}