:root{
  --fg:#eef2f7; --dim:rgba(238,242,247,.58); --faint:rgba(238,242,247,.18);
  --acc:#ff9f8a; --acc-dim:rgba(255,159,138,.4); --cyan:#8fe3ff; --gold:#f2d39b;
  --glass:rgba(6,10,20,.58); --line:rgba(238,242,247,.13);
  --serif:"Songti SC","Noto Serif SC","Source Han Serif SC",STSong,serif;
  --sans:-apple-system,"PingFang SC","Helvetica Neue","Microsoft YaHei",sans-serif;
  --mono:ui-monospace,"SF Mono",Menlo,Consolas,monospace;
  --safe-b:env(safe-area-inset-bottom,0px); --safe-t:env(safe-area-inset-top,0px);
}
*{box-sizing:border-box;margin:0;padding:0;-webkit-tap-highlight-color:transparent}
html,body{height:100%;background:#02040a;color:var(--fg);font-family:var(--sans);overflow:hidden;overscroll-behavior:none}
body{touch-action:none;user-select:none;-webkit-user-select:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
#gl{position:fixed;inset:0;width:100%;height:100%;display:block;cursor:grab}
#gl:active{cursor:grabbing}
.hide{display:none!important}

/* 进入页 */
#gate{position:fixed;inset:0;display:grid;place-items:center;background:#02040a;z-index:50;transition:opacity 1.4s}
#gate.out{opacity:0;pointer-events:none}
.gate-in{text-align:center;display:flex;flex-direction:column;align-items:center;gap:30px;padding:0 16px}
.gate-cell{width:10px;height:10px;border-radius:50%;background:var(--acc);box-shadow:0 0 14px 4px var(--acc),0 0 60px 16px rgba(255,120,100,.35);animation:beat 0.88s ease-out infinite}
@keyframes beat{0%{transform:scale(1)}12%{transform:scale(1.5)}30%{transform:scale(1.05)}42%{transform:scale(1.3)}100%{transform:scale(1)}}
.gate-title{font-family:var(--serif);font-size:46px;letter-spacing:.5em;padding-left:.5em;font-weight:400}
.gate-title span{display:block;font-family:var(--mono);font-size:11px;letter-spacing:.6em;color:var(--dim);margin-top:14px}
.gate-tag{font-family:var(--serif);font-size:15px;letter-spacing:.3em;color:var(--dim)}
.gate-btn{border:1px solid var(--faint);padding:12px 36px;letter-spacing:.3em;font-size:13px;border-radius:40px;transition:.4s}
.gate-btn:hover{border-color:var(--acc);color:var(--acc);box-shadow:0 0 30px rgba(255,159,138,.2)}
.gate-hint{font-size:11px;color:var(--dim);letter-spacing:.2em}
.gate-lang{display:flex;gap:12px;align-items:center;font-size:12px;color:var(--dim)}
.gate-lang i{width:1px;height:10px;background:var(--faint)}
.gate-lang button.on{color:var(--fg)}
.gate-demo{position:absolute;bottom:calc(22px + var(--safe-b));left:0;right:0;text-align:center;font-family:var(--mono);font-size:10px;letter-spacing:.35em;color:var(--faint)}

/* 标题 */
#title{position:fixed;left:0;right:0;top:26vh;text-align:center;z-index:10;opacity:0;pointer-events:none;transition:opacity 2s}
#title.on{opacity:1}
#title h1{font-family:var(--serif);font-weight:400;font-size:clamp(46px,8vw,88px);letter-spacing:.4em;padding-left:.4em;text-shadow:0 0 40px rgba(255,140,120,.35)}
#title p{margin-top:16px;font-family:var(--mono);font-size:11px;letter-spacing:.6em;color:var(--dim)}
#title p+p{font-family:var(--serif);font-size:15px;letter-spacing:.3em;margin-top:22px;color:var(--fg);opacity:.8}

/* 顶栏 */
#hud{position:fixed;inset:0;pointer-events:none;z-index:5;opacity:0;transition:opacity 1.2s}
#hud.on{opacity:1}
#hud > *{pointer-events:auto}
.brand{position:absolute;left:24px;top:calc(20px + var(--safe-t));font-family:var(--serif);font-size:17px;letter-spacing:.4em;cursor:pointer}
.brand small{display:block;font-family:var(--mono);font-size:9px;letter-spacing:.42em;color:var(--dim);margin-top:6px}
.tools{position:absolute;right:20px;top:calc(18px + var(--safe-t));display:flex;gap:6px}
.tools button{height:32px;min-width:32px;padding:0 12px;border:1px solid var(--line);border-radius:20px;font-size:12px;letter-spacing:.12em;color:var(--dim);background:var(--glass);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);transition:.3s}
.tools button:hover,.tools button.on{color:var(--fg);border-color:var(--faint)}
.tools button.off{opacity:.5;text-decoration:line-through}

/* 左侧尺度尺 */
#ruler{position:absolute;left:24px;top:50%;transform:translateY(-50%);display:flex;flex-direction:column;gap:2px}
#ruler::before{content:"";position:absolute;left:3px;top:10px;bottom:10px;width:1px;background:var(--line)}
#ruler button{position:relative;display:flex;align-items:center;gap:12px;padding:6px 0;text-align:left;color:var(--dim);transition:color .3s}
#ruler button i{width:7px;height:7px;border-radius:50%;border:1px solid var(--faint);background:#02040a;transition:.4s;flex:none}
#ruler button b{font-weight:400;font-size:12px;letter-spacing:.12em;white-space:nowrap}
#ruler button em{font-style:normal;font-family:var(--mono);font-size:10px;color:var(--faint);letter-spacing:.06em;white-space:nowrap}
#ruler button:hover{color:var(--fg)}
#ruler button.on{color:var(--fg)}
#ruler button.on i{background:var(--acc);border-color:var(--acc);box-shadow:0 0 10px var(--acc)}
#ruler button.on em{color:var(--acc)}

/* 字幕 */
#sub{position:fixed;left:0;right:0;bottom:calc(13vh + var(--safe-b));text-align:center;pointer-events:none;z-index:6;padding:0 16px}
#sub .s{font-family:var(--serif);font-size:clamp(17px,2.2vw,25px);letter-spacing:.2em;text-shadow:0 0 18px rgba(0,0,0,.9),0 0 3px rgba(0,0,0,.8);min-height:1.5em;line-height:1.5}
#sub .s span{display:inline-block;white-space:pre;opacity:0;filter:blur(6px);transform:translateY(6px);animation:ch .9s forwards}
#sub .s.out span{animation:chout .7s forwards}
@keyframes ch{to{opacity:1;filter:blur(0);transform:none}}
@keyframes chout{from{opacity:1;filter:blur(0)}to{opacity:0;filter:blur(8px);transform:translateY(-4px)}}

/* 右下操作 */
#acts{position:absolute;right:20px;bottom:calc(22px + var(--safe-b));display:flex;gap:8px;align-items:center}
#acts button{height:38px;padding:0 16px;border:1px solid var(--line);border-radius:22px;font-size:13px;letter-spacing:.14em;background:var(--glass);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);transition:.3s;color:var(--dim)}
#acts button:hover{color:var(--fg);border-color:var(--faint)}
#acts .go{color:var(--fg);border-color:var(--acc-dim)}
#acts .go:hover{border-color:var(--acc);box-shadow:0 0 24px rgba(255,159,138,.25)}
#acts .sick.on{color:#ffd27a;border-color:rgba(255,210,122,.5)}

/* 左下实时计数 */
#count{position:absolute;left:24px;bottom:calc(22px + var(--safe-b));font-size:11px;color:var(--dim);letter-spacing:.06em;line-height:1.75;font-variant-numeric:tabular-nums}
#count .t{color:var(--fg);font-family:var(--mono);letter-spacing:.08em}
#count .row{display:flex;justify-content:space-between;gap:18px;min-width:190px}
#count .row b{font-weight:400;color:var(--fg);font-family:var(--mono)}
#count .head{margin-bottom:4px}

/* 心电 */
#ecg{position:absolute;right:20px;bottom:calc(72px + var(--safe-b));width:220px;height:70px;transition:opacity .8s}
#ecg canvas{width:100%;height:56px;display:block}
#ecg .l{display:flex;justify-content:space-between;font-family:var(--mono);font-size:10px;color:var(--dim);letter-spacing:.2em}
#ecg .l b{font-weight:400;color:var(--acc)}
#ecg .l .fib{color:#ffd27a}

/* 热点 */
#spots{position:fixed;inset:0;pointer-events:none;z-index:4}
.spot{position:absolute;left:0;top:0;pointer-events:auto;display:flex;align-items:center;gap:10px;transform:translate(-9px,-9px);transition:opacity .5s;cursor:pointer}
.spot i{width:18px;height:18px;border-radius:50%;border:1px solid rgba(255,255,255,.75);box-shadow:0 0 12px rgba(255,180,160,.6),inset 0 0 6px rgba(255,180,160,.5);position:relative;flex:none}
.spot i::after{content:"";position:absolute;inset:-7px;border-radius:50%;border:1px solid rgba(255,255,255,.35);animation:ring 2.2s ease-out infinite}
@keyframes ring{from{transform:scale(.6);opacity:1}to{transform:scale(1.5);opacity:0}}
.spot span{font-size:12px;letter-spacing:.18em;padding:4px 10px;border-radius:12px;background:rgba(4,8,16,.55);backdrop-filter:blur(6px);-webkit-backdrop-filter:blur(6px);white-space:nowrap;border:1px solid var(--line)}
.spot span small{color:var(--dim);font-size:10px;margin-left:6px;letter-spacing:.1em}
.spot.soon{opacity:.55}
.spot.soon i{border-style:dashed;box-shadow:none}
.spot.soon i::after{display:none}
.spot.dive i{border-color:var(--acc);box-shadow:0 0 14px var(--acc)}
.spot.off{opacity:0;pointer-events:none}

/* 介绍卡 */
#card{position:fixed;right:20px;top:calc(70px + var(--safe-t));width:min(380px,calc(100vw - 40px));max-height:calc(100vh - 240px);overflow:auto;z-index:8;
  background:rgba(6,10,20,.72);backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);border:1px solid var(--line);border-radius:18px;padding:24px 24px 22px;
  opacity:0;transform:translateX(20px);pointer-events:none;transition:opacity .45s,transform .45s;touch-action:pan-y;user-select:text;-webkit-user-select:text}
#card.on{opacity:1;transform:none;pointer-events:auto}
#card .x{position:absolute;right:12px;top:10px;width:30px;height:30px;color:var(--dim);font-size:20px}
#card .tag{font-family:var(--mono);font-size:10px;letter-spacing:.3em;color:var(--acc)}
#card h2{font-family:var(--serif);font-weight:400;font-size:26px;letter-spacing:.12em;margin:8px 0 16px}
#card .stats{display:grid;grid-template-columns:1fr 1fr;gap:10px 16px;margin-bottom:16px;padding:14px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
#card .stats div{font-size:11px;color:var(--dim);letter-spacing:.06em}
#card .stats b{display:block;font-weight:400;font-size:14px;color:var(--fg);margin-top:3px}
#card p{font-size:14px;line-height:1.85;color:rgba(238,242,247,.86);letter-spacing:.03em}
#card .story{margin-top:14px;padding-left:12px;border-left:1px solid var(--acc-dim);color:var(--dim);font-size:13px}
#card .sickbox{margin-top:16px;padding:14px;border-radius:12px;background:rgba(255,200,110,.07);border:1px solid rgba(255,210,122,.2)}
#card .sickbox h3{font-weight:400;font-size:13px;color:#ffd27a;letter-spacing:.14em;margin-bottom:6px}

/* 提示 */
#toast{position:fixed;left:50%;top:calc(76px + var(--safe-t));transform:translateX(-50%);padding:8px 18px;border-radius:20px;background:var(--glass);border:1px solid var(--line);font-size:12px;letter-spacing:.16em;color:var(--dim);opacity:0;transition:opacity .5s;pointer-events:none;z-index:9;backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px)}
#toast.on{opacity:1}
#push{position:fixed;left:50%;bottom:calc(24vh + var(--safe-b));transform:translateX(-50%);font-size:12px;letter-spacing:.3em;color:var(--acc);opacity:0;transition:opacity .3s;pointer-events:none;text-align:center;z-index:6}
#push i{display:block;height:1px;margin-top:8px;background:var(--acc);transform-origin:left;transform:scaleX(0)}
#loading{position:fixed;left:50%;top:50%;transform:translate(-50%,-50%);font-family:var(--mono);font-size:10px;letter-spacing:.4em;color:var(--dim);opacity:0;transition:opacity .4s;pointer-events:none;z-index:9}
#loading.on{opacity:1}

/* 小游戏 */
#game{position:fixed;left:50%;top:calc(76px + var(--safe-t));transform:translateX(-50%);text-align:center;z-index:6;pointer-events:none;opacity:0;transition:opacity .6s}
#game.on{opacity:1}
#game .n{font-family:var(--mono);font-size:30px;letter-spacing:.2em;color:var(--fg)}
#game .n b{color:var(--acc);font-weight:400}
#game .h{font-size:12px;letter-spacing:.18em;color:var(--dim);margin-top:4px}
#game .dots{display:flex;gap:8px;justify-content:center;margin-top:10px}
#game .dots i{width:8px;height:8px;border-radius:50%;border:1px solid var(--faint)}
#game.hint .n,#game.hint .dots{display:none}
#game.hint .h{font-size:13px;color:var(--fg);opacity:.8}
#game .dots i.on{background:var(--acc);border-color:var(--acc);box-shadow:0 0 8px var(--acc)}

/* 结尾 */
#fin{position:fixed;inset:0;display:grid;place-items:center;z-index:7;pointer-events:none;text-align:center;padding:0 16px}
#fin .ln{font-family:var(--serif);font-size:clamp(18px,2.6vw,30px);letter-spacing:.2em;line-height:2.2;opacity:0;transform:translateY(8px);transition:opacity 1.6s,transform 1.6s;text-shadow:0 0 20px #000}
#fin .ln.on{opacity:1;transform:none}
#fin .btns{margin-top:36px;display:flex;flex-wrap:wrap;gap:12px;justify-content:center;opacity:0;transition:opacity 1.2s}
#fin .btns.on{opacity:1;pointer-events:auto}
#fin .btns a,#fin .btns button{display:inline-block;padding:12px 26px;border-radius:30px;border:1px solid var(--faint);font-size:13px;letter-spacing:.18em;color:var(--fg);text-decoration:none;background:var(--glass);transition:.3s}
#fin .btns a{border-color:var(--gold);color:var(--gold)}
#fin .btns a:hover{box-shadow:0 0 30px rgba(242,211,155,.3)}

/* 关于 */
#about{position:fixed;inset:0;z-index:30;display:grid;place-items:center;background:rgba(2,4,10,.6);backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);opacity:0;pointer-events:none;transition:opacity .4s;padding:16px}
#about.on{opacity:1;pointer-events:auto}
#about .box{position:relative;width:min(560px,100%);max-height:calc(100vh - 32px);overflow:auto;background:rgba(6,10,20,.9);border:1px solid var(--line);border-radius:20px;padding:30px 28px;touch-action:pan-y;user-select:text;-webkit-user-select:text}
#about h2{font-family:var(--serif);font-weight:400;font-size:24px;letter-spacing:.2em;margin-bottom:6px}
#about .by{font-size:12px;color:var(--dim);letter-spacing:.14em;margin-bottom:18px}
#about .demo{display:inline-block;font-family:var(--mono);font-size:10px;letter-spacing:.3em;color:var(--acc);border:1px solid var(--acc-dim);border-radius:12px;padding:3px 10px;margin-bottom:16px}
#about p{font-size:14px;line-height:1.9;color:rgba(238,242,247,.86);white-space:pre-line}
#about h3{font-weight:400;font-size:12px;letter-spacing:.24em;color:var(--dim);margin:20px 0 8px}
#about li{font-size:12px;line-height:1.8;color:var(--dim);margin-left:16px}
#about .x{position:absolute;right:14px;top:12px;width:30px;height:30px;color:var(--dim);font-size:20px}

/* 手机 */
@media (max-width:760px){
  .brand{left:16px;font-size:15px}
  .tools{right:12px}
  .tools button{padding:0 10px;height:30px}
  #ruler{left:12px;gap:0}
  #ruler button{padding:5px 0}
  #ruler button b{display:none}
  #ruler button em{font-size:9px}
  #ruler button.on b{display:inline;font-size:11px}
  #acts{right:12px;left:12px;justify-content:flex-end;flex-wrap:wrap;bottom:calc(14px + var(--safe-b))}
  #acts button{height:36px;padding:0 13px;font-size:12px}
  #count{left:16px;bottom:calc(62px + var(--safe-b));font-size:10px}
  #count .row{min-width:150px}
  #count.min .row{display:none}
  #ecg{right:12px;bottom:calc(62px + var(--safe-b));width:140px}
  #sub{bottom:calc(150px + var(--safe-b))}
  #card{right:12px;left:12px;width:auto;top:auto;bottom:calc(60px + var(--safe-b));max-height:58vh;transform:translateY(20px)}
  .spot span{font-size:11px;padding:3px 8px}
}

/* 电影模式：只留字幕 */
body.cinema #hud,body.cinema #spots,body.cinema #card,body.cinema #game,body.cinema #push{opacity:0!important;pointer-events:none!important}
body.cinema #gl{cursor:none}
body.cinema #sub{bottom:calc(9vh + var(--safe-b))}
@media (max-width:760px){.tools .cine{display:none}}