:root{--board:#0b0b0c;--bline:#222226;--btext:#ecece6;--bdim:#8d8d95;
 --bg:#f5f5f0;--card:#fff;--ink:#141414;--mute:#6d6d67;--faint:#a3a39c;--line:#e6e6df;--lime:#d9fd64;--limed:#c6ec4a;--pur:#8864fd;--purs:#efeaff;--pur-ink:#4b2fc0;--orange:#ff9f43;--red:#ff5a43;
 --h:'Space Grotesk',system-ui,sans-serif;--b:'DM Sans','PingFang SC','Noto Sans SC',system-ui,sans-serif}
*{box-sizing:border-box}
html,body{margin:0;background:var(--board);color:var(--btext);font:15px/1.45 var(--b);-webkit-font-smoothing:antialiased}
button,input,textarea{font:inherit;color:inherit}button{cursor:pointer;background:none;border:0;padding:0}
:focus-visible{outline:2px solid var(--pur);outline-offset:2px}
/* board */
.top{position:sticky;top:0;z-index:20;display:flex;align-items:center;gap:20px;padding:16px 36px;background:rgba(11,11,12,.92);backdrop-filter:blur(8px);border-bottom:1px solid var(--bline)}
.top h1{margin:0;font:600 19px var(--h)}.top p{margin:0;color:var(--bdim);font-size:13px}
.top .sp{flex:1}
.lang{display:flex;border:1px solid #33333a}.lang button{padding:7px 14px;font-size:13px;color:var(--bdim)}.lang button.on{background:var(--btext);color:var(--board)}
.jump{display:flex;gap:4px}.jump a{color:var(--bdim);font-size:13px;text-decoration:none;padding:6px 10px;border:1px solid transparent}.jump a:hover{color:var(--btext);border-color:#33333a}
.sec{padding:40px 36px 10px}
.sec-h{display:flex;align-items:baseline;gap:16px;margin-bottom:22px;border-top:1px solid var(--bline);padding-top:22px}
.sec-h span{font:600 12px var(--h);color:var(--lime);letter-spacing:.06em}.sec-h h2{margin:0;font:600 26px var(--h);letter-spacing:-.01em}.sec-h p{margin:0;color:var(--bdim);font-size:14px}
.row{display:flex;gap:34px;overflow-x:auto;padding-bottom:26px;scroll-snap-type:x proximity}
.ph{margin:0;flex:0 0 330px;scroll-snap-align:start;display:flex;flex-direction:column;gap:14px}
.ph figcaption b{display:block;font:600 15px var(--h)}.ph figcaption span{display:block;font-size:13px;color:var(--bdim);margin-top:3px}
.dev{width:330px;height:700px;border-radius:46px;background:#1a1a1d;padding:11px;box-shadow:0 30px 60px rgba(0,0,0,.45),inset 0 0 0 1px #2c2c31;position:relative}
.scr{position:relative;width:100%;height:100%;border-radius:36px;overflow:hidden;background:var(--bg);color:var(--ink);display:flex;flex-direction:column}
.sbar{height:40px;flex:none;display:flex;justify-content:space-between;align-items:center;padding:0 24px 0 28px;font:600 13px var(--b);position:relative;z-index:3}
.sbar .isl{position:absolute;left:50%;top:9px;transform:translateX(-50%);width:96px;height:26px;border-radius:14px;background:#111}
.sbar.dark{color:#fff}
.demo{display:flex;gap:6px;flex-wrap:wrap}.demo button{padding:6px 10px;font-size:12px;border:1px solid #33333a;color:var(--bdim)}.demo button.on{border-color:var(--lime);color:var(--lime)}
/* app atoms */
.body{flex:1;overflow:auto;padding:6px 20px 20px;display:flex;flex-direction:column;gap:14px;scrollbar-width:none}
.body::-webkit-scrollbar{display:none}
.body>*{flex-shrink:0}
.h1{font:700 27px/1.1 var(--h);letter-spacing:-.02em;margin:0}
.h2{font:600 19px/1.2 var(--h);margin:0}
.mu{color:var(--mute)}.sm{font-size:13px}.xs{font-size:12px}
.card{background:var(--card);border-radius:20px;padding:16px;box-shadow:0 1px 0 var(--line)}
.btn{display:flex;align-items:center;justify-content:center;gap:8px;height:54px;border-radius:16px;font-weight:700;font-size:16px;width:100%}
.btn.p{background:var(--lime);color:var(--ink)}.btn.p:active{background:var(--limed)}
.btn.s{background:var(--ink);color:#fff}.btn.g{background:transparent;border:1.5px solid var(--line)}.btn.v{background:var(--pur);color:#fff}
.foot{padding:12px 0 22px;flex:none;display:flex;flex-direction:column;gap:8px;background:linear-gradient(transparent,var(--bg) 30%)}
.prog{display:flex;gap:4px}.prog i{flex:1;height:4px;border-radius:2px;background:var(--line)}.prog i.on{background:var(--ink)}
.top-l{display:flex;justify-content:space-between;align-items:center}
.pill{display:inline-flex;align-items:center;gap:6px;height:28px;padding:0 11px;border-radius:14px;background:var(--card);font-size:12.5px;font-weight:600}
.body>.pill{align-self:flex-start}
.pill.lime{background:var(--lime)}.pill.pur{background:var(--purs);color:var(--pur-ink)}
.langb{font-size:12px;font-weight:700;padding:5px 9px;border-radius:10px;background:var(--card)}
.fld{display:flex;flex-direction:column;gap:6px}.fld label{font-size:13px;font-weight:600}
.fld .in{height:50px;border-radius:14px;background:var(--card);border:1.5px solid var(--line);padding:0 14px;display:flex;align-items:center;font-size:15px}
.fld .in.f{border-color:var(--ink)}
.range{position:relative;height:28px}.range .tr{position:absolute;left:0;right:0;top:12px;height:4px;border-radius:2px;background:var(--line)}.range .fi{position:absolute;top:12px;height:4px;background:var(--ink);left:20%;right:35%}
.range .th{position:absolute;top:3px;width:22px;height:22px;border-radius:50%;background:#fff;border:2px solid var(--ink)}
.chips{display:flex;flex-wrap:wrap;gap:8px}
.chip{height:38px;padding:0 14px;border-radius:19px;background:var(--card);border:1.5px solid var(--line);font-size:14px;font-weight:500}
.chip.on{background:var(--ink);color:#fff;border-color:var(--ink)}
.opt{display:flex;align-items:center;gap:12px;min-height:60px;padding:12px 16px;border-radius:16px;background:var(--card);border:1.5px solid var(--line);text-align:left;font-size:15px;font-weight:500;width:100%}
.opt .rad{width:22px;height:22px;border-radius:50%;border:2px solid var(--line);flex:none}
.opt.on{border-color:var(--ink);background:var(--lime)}.opt.on .rad{border:7px solid var(--ink)}
.help{position:absolute;right:16px;bottom:22px;z-index:4;height:46px;padding:0 16px;border-radius:23px;background:var(--ink);color:#fff;font-weight:700;font-size:14px;display:flex;align-items:center;gap:8px;box-shadow:0 8px 20px rgba(0,0,0,.18)}
.help i{width:8px;height:8px;border-radius:50%;background:var(--red)}
/* screens */
.hero{background:var(--ink);color:#fff;margin:-46px -20px 0;padding:58px 22px 26px;border-radius:0 0 30px 30px;position:relative;overflow:hidden}
.hero .tag{display:inline-block;background:var(--lime);color:var(--ink);font-weight:700;font-size:12px;padding:4px 9px;border-radius:8px}
.hero .logo{display:block;height:96px;max-width:100%;margin:18px 0 4px;object-fit:contain;object-position:left center}
.hero .blob{position:absolute;right:-40px;top:20px;width:150px;height:150px;border-radius:50%;background:var(--pur);opacity:.9}
.hero .blob2{position:absolute;right:50px;top:110px;width:70px;height:70px;border-radius:50%;background:var(--lime)}
.facts{display:grid;grid-template-columns:1fr 1fr;gap:8px}.facts div{background:var(--card);border-radius:16px;padding:12px 14px}.facts b{display:block;font-size:15px}.facts span{font-size:12.5px;color:var(--mute)}
.steps{display:flex;flex-direction:column;gap:2px}.steps div{display:flex;gap:12px;align-items:center;padding:9px 0;font-size:14px}.steps i{min-width:30px;padding:0 7px;height:30px;border-radius:10px;background:var(--purs);color:var(--pur-ink);display:grid;place-items:center;font-style:normal;font-weight:700;font-size:13px;flex:none}
.qr{width:clamp(150px,50vw,220px);aspect-ratio:1;margin:0 auto;display:block}.qr img,.qr canvas{width:100%!important;height:100%!important}
.ticket{background:var(--card);border-radius:24px;overflow:hidden}.ticket .tt{padding:18px;background:var(--lime)}.ticket .tb{padding:18px;border-top:2px dashed var(--line)}
.check{display:flex;align-items:center;gap:10px;font-size:14px;padding:6px 0}.check i{width:22px;height:22px;border-radius:50%;background:var(--ink);color:var(--lime);font-style:normal;display:grid;place-items:center;font-size:12px}
.lobby{background:var(--pur);color:#fff;margin:-46px -20px 0;padding:60px 22px 28px;border-radius:0 0 30px 30px}
.lobby .big{font:700 40px/1 var(--h);letter-spacing:-.02em}
.prm{display:flex;align-items:center;gap:12px;padding:13px 14px;border-radius:16px;background:var(--card);border:1.5px solid var(--line);text-align:left;width:100%}
.prm .ck{width:26px;height:26px;border-radius:8px;border:2px solid var(--line);flex:none;display:grid;place-items:center;font-size:13px}
.prm.on{border-color:var(--ink)}.prm.on .ck{background:var(--lime);border-color:var(--ink)}.prm b{display:block;font-size:14.5px;font-weight:600}.prm span{font-size:12.5px;color:var(--mute)}
/* round screens */
.rtop{margin:-46px -20px 0;padding:56px 22px 22px;border-radius:0 0 30px 30px;transition:background .4s,color .4s}
.rtop.green{background:var(--lime)}.rtop.orange{background:var(--orange)}.rtop.red{background:var(--red);color:#fff}.rtop.gap{background:var(--pur);color:#fff}
.rtop .rl{font-weight:600;font-size:14px;opacity:.75}
.rtop .tm{font:700 76px/1 var(--h);letter-spacing:-.04em;margin:6px 0 2px;font-variant-numeric:tabular-nums}
.rtop .tbar{height:6px;border-radius:3px;background:rgba(0,0,0,.12);overflow:hidden;margin-top:12px}.rtop .tbar i{display:block;height:100%;background:var(--ink)}
.rtop.red .tbar i,.rtop.gap .tbar i{background:#fff}.rtop.red .tbar,.rtop.gap .tbar{background:rgba(255,255,255,.25)}
.who{display:flex;gap:14px;align-items:center}
.av{width:58px;height:58px;border-radius:20px;display:grid;place-items:center;font:700 20px var(--h);flex:none}
.av.k{background:#ffd9c2;color:#8a3a10}.av.d{background:#cfe6ff;color:#1b4b80}.av.r{background:#e3d9ff;color:#4b2fc0}.av.e{background:#ffe6f1;color:#9b2459}
.who b{display:block;font:600 18px var(--h)}.who span{font-size:13px;color:var(--mute)}
.common{display:flex;flex-wrap:wrap;gap:6px;margin-top:10px}.common span{font-size:12.5px;font-weight:600;padding:5px 10px;border-radius:10px;background:var(--purs);color:var(--pur-ink)}
.topic{background:var(--ink);color:#fff;border-radius:22px;padding:18px}.topic .k{font-size:12px;font-weight:700;color:var(--lime)}.topic p{margin:8px 0 0;font:600 19px/1.3 var(--h)}
.map{position:relative;height:150px;background:var(--card);border-radius:20px;overflow:hidden;padding:12px}
.map .t{position:absolute;width:15%;height:15%;border-radius:6px;background:var(--line);display:grid;place-items:center;font-size:10px;font-weight:700;color:var(--faint)}
.map .t.me{background:var(--pur);color:#fff;box-shadow:0 0 0 4px var(--purs);animation:pulse 1.6s infinite}
.map .door{position:absolute;left:6%;bottom:0;width:22%;height:4px;background:var(--ink);border-radius:2px}
.map .bar{position:absolute;right:5%;top:12%;width:8%;height:56%;border-radius:6px;background:#efefe8}
.map .you{position:absolute;left:12%;bottom:8%;font-size:10px;font-weight:700}
@keyframes pulse{50%{box-shadow:0 0 0 9px rgba(136,100,253,.15)}}
.rate{display:flex;flex-direction:column;gap:10px}
.rate button{display:flex;align-items:center;gap:14px;padding:16px;border-radius:20px;background:var(--card);border:2px solid var(--line);text-align:left;width:100%}
.rate button .em{font-size:34px;line-height:1}.rate button b{display:block;font:600 17px var(--h)}.rate button span{font-size:13px;color:var(--mute)}
.rate button.on{border-color:var(--ink);background:var(--lime)}
.note{display:flex;gap:10px;align-items:flex-start;background:var(--purs);color:var(--pur-ink);padding:12px 14px;border-radius:16px;font-size:13px}
.ta{min-height:80px;border-radius:14px;background:var(--card);border:1.5px solid var(--line);padding:12px 14px;font-size:14px;color:var(--faint)}
.sheet-wrap{position:absolute;inset:0;background:rgba(20,20,20,.45);z-index:6;display:flex;align-items:flex-end}
.sheet{background:var(--bg);width:100%;border-radius:28px 28px 0 0;padding:10px 20px 26px;display:flex;flex-direction:column;gap:10px}
.sheet .grab{width:40px;height:5px;border-radius:3px;background:var(--line);margin:0 auto 8px}
.sent{display:flex;flex-direction:column;align-items:center;text-align:center;gap:8px;padding:10px 0}
.sent .ok{width:64px;height:64px;border-radius:50%;background:var(--lime);display:grid;place-items:center;font-size:28px}
.vote button{position:relative;display:flex;justify-content:space-between;align-items:center;width:100%;height:60px;padding:0 16px;border-radius:16px;background:var(--card);border:2px solid var(--line);overflow:hidden;font-weight:600}
.vote button i{position:absolute;left:0;top:0;bottom:0;background:var(--purs);z-index:0;transition:width .4s}.vote button span,.vote button b{position:relative;z-index:1}
.vote button.on{border-color:var(--ink)}.vote button.on i{background:var(--lime)}
.stars{display:flex;justify-content:space-between}.stars button{width:52px;height:52px;border-radius:16px;background:var(--card);font-size:24px;border:2px solid var(--line)}.stars button.on{background:var(--lime);border-color:var(--ink)}
.match{background:var(--card);border-radius:22px;padding:16px;display:flex;flex-direction:column;gap:12px}
.wx{display:flex;justify-content:space-between;align-items:center;background:var(--bg);border-radius:14px;padding:10px 12px}.wx b{font-family:var(--h)}.wx button{font-weight:700;font-size:13px;padding:7px 12px;border-radius:10px;background:var(--ink);color:#fff}
.confetti{margin:-46px -20px 0;padding:60px 22px 26px;background:var(--lime);border-radius:0 0 30px 30px;position:relative;overflow:hidden}
.confetti .c{position:absolute;width:10px;height:10px;border-radius:2px;opacity:.55}
.cd{display:flex;gap:8px}.cd div{flex:1;background:var(--card);border-radius:16px;padding:12px;text-align:center}.cd b{display:block;font:700 30px var(--h)}.cd span{font-size:12px;color:var(--mute)}
.game{background:var(--pur);color:#fff;border-radius:22px;padding:18px}.game .k{font-size:12px;font-weight:700;color:var(--lime)}.game h3{margin:6px 0 4px;font:700 22px var(--h)}
.word{background:#fff;color:var(--ink);border-radius:16px;padding:22px;text-align:center;font:700 30px var(--h);margin-top:12px}
.notes{max-width:1100px;padding:10px 36px 60px;color:var(--bdim);font-size:14px}
.notes h3{color:var(--btext);font:600 16px var(--h);margin:30px 0 8px}
.notes ul{margin:0;padding-left:18px}.notes li{margin:5px 0}
@media (prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}}