:root{
  --bg:#05040a;
  --ink:#f6ecf5;
  --ink-dim:rgba(242,225,240,.72);
  --ink-faint:rgba(232,212,235,.46);
  --line:rgba(255,220,242,.14);
  --line-strong:rgba(255,190,226,.32);
  --panel:rgba(20,12,26,.72);
  --panel-strong:rgba(24,14,32,.78);
  --pink:#ff86bf;
  --pink-soft:#ffc2dc;
  --violet:#b98cff;
  --accent:var(--pink);
  --accent-2:var(--violet);
  --btn-ink:#2a0c1c;
  --shadow:0 24px 80px rgba(0,0,0,.45);
  --serif:"Noto Serif SC","Songti SC","STSong",serif;
  --sans:"Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
}
*{box-sizing:border-box;margin:0;padding:0}
html,body{width:100%;height:100%;overflow:hidden;background:var(--bg)}
body{font-family:var(--sans);color:var(--ink);-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}
button{font:inherit;color:inherit;background:none;border:none;cursor:pointer}
a{color:inherit;text-decoration:none}
svg{display:block}
[hidden]{display:none !important}

.backdrop{position:fixed;inset:0;z-index:0;overflow:hidden;pointer-events:none;background:
  radial-gradient(120% 90% at 50% 12%,#140a1e 0%,#080510 48%,#030207 100%)}
.nebula{position:absolute;border-radius:50%;filter:blur(46px);opacity:.5;mix-blend-mode:screen;animation:nebula-drift 26s ease-in-out infinite alternate}
.nebula-a{width:62vw;height:62vw;left:-10vw;top:-18vw;background:radial-gradient(circle at 50% 50%,rgba(255,96,166,.32),rgba(120,42,110,.18) 42%,transparent 70%)}
.nebula-b{width:54vw;height:54vw;right:-12vw;bottom:-16vw;background:radial-gradient(circle at 50% 50%,rgba(126,94,255,.26),rgba(52,28,110,.16) 46%,transparent 72%);animation-delay:-9s;animation-duration:31s}
.nebula-c{width:38vw;height:38vw;left:38vw;top:28vh;background:radial-gradient(circle at 50% 50%,rgba(86,184,255,.14),transparent 68%);animation-delay:-15s;animation-duration:36s}
.vignette{position:absolute;inset:0;background:
  radial-gradient(130% 100% at 50% 50%,transparent 44%,rgba(0,0,0,.42) 100%),
  linear-gradient(180deg,rgba(3,2,6,.42),transparent 18%,transparent 82%,rgba(3,2,6,.55))}
@keyframes nebula-drift{
  0%{transform:translate3d(0,0,0) scale(1)}
  100%{transform:translate3d(3vw,-2vh,0) scale(1.12)}
}

#scene{position:fixed;inset:0;width:100%;height:100%;z-index:1;display:block;touch-action:none;cursor:grab}
#scene:active{cursor:grabbing}

.topbar{position:fixed;z-index:6;top:0;left:0;right:0;height:74px;padding:22px 30px;display:flex;align-items:flex-start;justify-content:space-between;pointer-events:none}
.topbar a,.topbar button{pointer-events:auto}
.brand{display:flex;align-items:center;gap:12px;opacity:.94}
.brand-mark{width:36px;height:36px;color:var(--pink-soft);display:grid;place-items:center;filter:drop-shadow(0 0 10px rgba(255,143,190,.45))}
.brand-mark svg{width:36px;height:36px;animation:mark-turn 38s linear infinite}
@keyframes mark-turn{to{transform:rotate(360deg)}}
.brand-text{display:flex;flex-direction:column;line-height:1.15;font-family:var(--serif);font-size:21px;letter-spacing:5px}
.brand-text small{font-family:var(--sans);font-size:10px;letter-spacing:3px;color:var(--ink-faint);margin-top:5px}
.top-actions{display:flex;align-items:center;gap:10px}
.icon-text{display:inline-flex;align-items:center;gap:7px;height:36px;padding:0 14px;border-radius:999px;border:1px solid var(--line);background:rgba(19,11,25,.38);backdrop-filter:blur(12px);font-size:12px;letter-spacing:1.5px;color:var(--ink-dim);transition:border-color .2s,color .2s,background .2s}
.icon-text svg{width:15px;height:15px}
.icon-text:hover{border-color:var(--line-strong);color:var(--ink);background:rgba(34,18,42,.55)}

.panel{position:fixed;z-index:7;left:28px;top:86px;width:288px;padding:18px 18px 14px;border-radius:22px;border:1px solid var(--line);background:var(--panel);
  backdrop-filter:blur(22px) saturate(1.15);-webkit-backdrop-filter:blur(22px) saturate(1.15);box-shadow:var(--shadow),inset 0 1px 0 rgba(255,255,255,.06)}
.panel::before{content:"";position:absolute;inset:0;border-radius:inherit;pointer-events:none;background:linear-gradient(145deg,rgba(255,255,255,.08),transparent 36%,transparent 68%,rgba(255,126,190,.05))}
.panel-head{display:flex;align-items:center;justify-content:space-between;padding:0 2px 14px;border-bottom:1px solid var(--line)}
.panel-title{font-family:var(--serif);font-size:17px;letter-spacing:4px;color:#fff3fa;text-shadow:0 0 18px rgba(255,150,196,.35)}
.live-dot{width:9px;height:9px;border-radius:50%;background:#66f0a8;box-shadow:0 0 0 3px rgba(102,240,168,.12),0 0 14px rgba(102,240,168,.8);animation:live 2.6s ease-in-out infinite}
@keyframes live{0%,100%{opacity:1}50%{opacity:.45}}
.panel-sec{padding:14px 2px 13px;border-bottom:1px solid rgba(255,220,242,.08)}
.sec-label{display:flex;align-items:center;justify-content:space-between;font-size:11px;letter-spacing:3px;color:var(--ink-faint);margin-bottom:10px}
.auto-tag{font-size:9px;letter-spacing:1.5px;color:#ffc2dc;background:rgba(255,127,190,.12);border:1px solid rgba(255,144,198,.28);border-radius:999px;padding:2px 7px;margin-left:auto}
.shape-note{margin:0;font-size:11px;line-height:1.95;color:var(--ink-faint);letter-spacing:.4px}
.shape-grid{display:grid;grid-template-columns:1fr 1fr;gap:8px}
.shape-btn{position:relative;display:flex;align-items:center;justify-content:center;gap:7px;height:44px;border-radius:11px;border:1px solid rgba(255,225,242,.12);background:rgba(255,244,250,.055);color:var(--ink-dim);font-size:12px;letter-spacing:1.5px;transition:transform .18s,background .2s,border-color .2s,color .2s}
.shape-btn svg{width:18px;height:18px;opacity:.85}
.shape-btn:hover{background:rgba(255,232,245,.1);border-color:var(--line-strong);color:var(--ink);transform:translateY(-1px)}
.shape-btn.is-active{color:#fff;border-color:rgba(255,168,209,.7);background:linear-gradient(135deg,rgba(255,127,190,.24),rgba(185,140,255,.18));box-shadow:0 0 22px rgba(255,120,185,.18),inset 0 1px 0 rgba(255,255,255,.12)}
.shape-wide{grid-column:1 / -1}
.color-row{display:flex;align-items:center;gap:9px;flex-wrap:wrap}
.swatch{width:22px;height:22px;border-radius:50%;background:var(--sw);border:1px solid rgba(255,255,255,.35);box-shadow:0 0 12px color-mix(in srgb,var(--sw) 55%,transparent);transition:transform .16s,box-shadow .2s;position:relative}
.swatch:hover{transform:scale(1.12)}
.swatch.is-active::after{content:"";position:absolute;inset:-4px;border-radius:50%;border:1.5px solid #fff;opacity:.9}
.swatch-white{border-color:rgba(10,6,16,.35)}
.custom-color{position:relative;display:inline-flex;align-items:center;gap:6px;height:26px;padding:0 9px;border-radius:999px;border:1px dashed var(--line-strong);font-size:10px;letter-spacing:1px;color:var(--ink-faint);overflow:hidden}
.custom-color input{position:absolute;inset:-8px;opacity:0;cursor:pointer;width:calc(100% + 16px);height:calc(100% + 16px)}
.custom-color:hover{color:var(--ink);border-color:var(--pink)}
.color-meta{display:flex;align-items:center;gap:8px;margin-top:11px;font-size:11px;letter-spacing:1.4px;color:var(--ink-dim)}
.color-dot{width:7px;height:7px;border-radius:50%;background:var(--accent);box-shadow:0 0 10px var(--accent)}
.color-name{color:var(--ink-faint);letter-spacing:2px}
.status-sec{border-bottom:0;padding-bottom:8px}
.status-row{display:flex;align-items:center;justify-content:space-between;height:24px;font-size:11px;letter-spacing:1.2px}
.status-key{color:var(--ink-faint)}
.status-val{color:var(--ink-dim)}
.status-row.small{margin-top:3px}
.status-row.small .status-key.gap{margin-left:auto;margin-right:0}
.status-row.small .status-val{margin-left:5px}
.gather-track{height:3px;border-radius:3px;background:rgba(255,255,255,.09);overflow:hidden;margin:6px 0 2px}
.gather-track span{display:block;height:100%;width:30%;border-radius:3px;background:linear-gradient(90deg,var(--accent-2),var(--accent));box-shadow:0 0 12px var(--accent);transition:width .18s linear}
.panel-foot{display:flex;flex-direction:column;align-items:stretch;gap:7px;padding-top:12px;border-top:1px solid rgba(255,220,242,.1)}
.mini-btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;height:32px;padding:0 11px;border-radius:9px;border:1px solid rgba(255,160,205,.3);background:rgba(255,130,190,.1);font-size:10.5px;letter-spacing:1px;color:#ffd9ea;white-space:nowrap;transition:background .2s,border-color .2s}
.mini-btn svg{width:14px;height:14px}
.mini-btn:hover{background:rgba(255,130,190,.18);border-color:rgba(255,170,210,.55)}
.hint-mini{font-size:9px;letter-spacing:.4px;color:var(--ink-faint);white-space:nowrap;text-align:center;overflow:hidden;text-overflow:ellipsis}

.shape-caption{position:fixed;z-index:5;left:50%;bottom:105px;transform:translateX(-50%);display:flex;flex-direction:column;align-items:center;gap:5px;pointer-events:none;opacity:.9}
.caption-kicker{font-size:11px;letter-spacing:5px;padding-left:5px;color:rgba(255,243,250,.92);text-shadow:0 0 12px rgba(255,120,180,.5)}
.caption-name{font-family:var(--serif);font-size:26px;letter-spacing:9px;padding-left:9px;color:#fff4fb;text-shadow:0 0 26px rgba(255,136,190,.55)}

.camera-card{position:fixed;z-index:7;left:28px;bottom:30px;width:238px;padding:10px;border-radius:16px;border:1px solid var(--line);background:rgba(16,9,22,.62);backdrop-filter:blur(18px);box-shadow:var(--shadow)}
.cam-head{display:flex;align-items:center;justify-content:space-between;padding:0 2px 7px;font-size:10px;letter-spacing:2px;color:var(--ink-faint)}
.cam-state{color:#7bf3b0}
.cam-frame{position:relative;width:100%;aspect-ratio:16/9;border-radius:10px;overflow:hidden;background:#0a0610;border:1px solid rgba(255,255,255,.08)}
.cam-frame video,.cam-frame canvas{position:absolute;inset:0;width:100%;height:100%;object-fit:contain;background:#0a0610}
.cam-frame video{transform:scaleX(-1);opacity:.9}
.cam-frame canvas{transform:scaleX(-1)}
.cam-offline{position:absolute;inset:0;display:grid;place-items:center;font-size:10px;letter-spacing:1.6px;color:var(--ink-faint);background:rgba(8,5,12,.55)}

.gesture-hint{position:fixed;z-index:5;left:50%;bottom:34px;transform:translateX(-50%);display:flex;align-items:center;gap:26px;padding:11px 24px;border-radius:999px;border:1px solid var(--line);background:rgba(16,9,22,.46);backdrop-filter:blur(14px);font-size:10.5px;letter-spacing:1.6px;color:var(--ink-dim)}
.hint-item{display:inline-flex;align-items:center;gap:8px;white-space:nowrap}
.hint-ico{width:13px;height:13px;position:relative;display:inline-block;border-radius:50%;border:1px solid rgba(255,160,205,.5)}
.hint-ico.spread::before,.hint-ico.spread::after{content:"";position:absolute;top:50%;left:50%;width:3px;height:3px;border-radius:50%;background:var(--pink);box-shadow:0 0 7px var(--pink);transform:translate(-50%,-50%)}
.hint-ico.spread::before{box-shadow:8px 0 0 var(--pink),-8px 0 0 var(--pink),0 7px 0 var(--pink),0 -7px 0 var(--pink)}
.hint-ico.gather::before{content:"";position:absolute;inset:3px;border-radius:50%;background:var(--pink);box-shadow:0 0 8px var(--pink)}
.hint-ico.move::before{content:"";position:absolute;left:50%;top:50%;width:5px;height:5px;border-top:1.5px solid var(--pink);border-right:1.5px solid var(--pink);transform:translate(-50%,-50%) rotate(45deg);opacity:.95}

.fullscreen-btn{position:fixed;z-index:7;right:30px;bottom:30px;width:52px;height:52px;border-radius:50%;display:grid;place-items:center;color:var(--ink-dim);border:1px solid var(--line);background:rgba(16,9,22,.5);backdrop-filter:blur(14px);box-shadow:0 12px 36px rgba(0,0,0,.35);transition:color .2s,border-color .2s,transform .2s}
.fullscreen-btn svg{width:20px;height:20px}
.fullscreen-btn:hover{color:#fff;border-color:var(--line-strong);transform:scale(1.05)}

.boot{position:fixed;inset:0;z-index:30;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:16px;background:radial-gradient(circle at 50% 44%,#130a1b 0%,#050309 62%,#020104 100%);transition:opacity .7s ease,visibility .7s}
.boot.is-done{opacity:0;visibility:hidden;pointer-events:none}
.boot-orb{position:relative;width:84px;height:84px;border-radius:50%;display:grid;place-items:center;border:1px solid rgba(255,160,205,.22)}
.boot-orb::before,.boot-orb::after{content:"";position:absolute;border-radius:50%;border:1px solid rgba(185,140,255,.2);animation:orb-ring 3.2s ease-out infinite}
.boot-orb::after{animation-delay:1.1s}
.boot-orb span{width:14px;height:14px;border-radius:50%;background:radial-gradient(circle at 38% 34%,#fff,#ff8fc6 42%,#8d5cff 88%);box-shadow:0 0 30px rgba(255,130,190,.9),0 0 70px rgba(150,90,255,.45);animation:orb-breath 2.4s ease-in-out infinite}
@keyframes orb-breath{50%{transform:scale(1.22)}}
@keyframes orb-ring{0%{width:84px;height:84px;opacity:.8}100%{width:190px;height:190px;opacity:0}}
.boot-title{font-family:var(--serif);font-size:18px;letter-spacing:8px;color:#fff0f9}
.boot-sub{font-size:10px;letter-spacing:3px;color:var(--ink-faint)}
.boot-track{width:180px;height:2px;border-radius:2px;background:rgba(255,255,255,.12);overflow:hidden}
.boot-track span{display:block;width:0;height:100%;background:linear-gradient(90deg,var(--violet),var(--pink));transition:width .4s}

.toast{position:fixed;z-index:25;left:50%;top:88px;bottom:auto;transform:translate(-50%,-14px);padding:9px 18px;border-radius:999px;border:1px solid var(--line-strong);background:rgba(21,11,29,.84);backdrop-filter:blur(16px);font-size:11px;letter-spacing:1.5px;color:#ffe8f3;opacity:0;pointer-events:none;transition:opacity .25s,transform .25s;white-space:nowrap}
.toast.is-show{opacity:1;transform:translate(-50%,0)}
.gesture-flash{position:fixed;z-index:26;left:50%;top:136px;transform:translate(-50%,-10px) scale(.96);display:flex;align-items:center;gap:10px;padding:9px 20px;border-radius:999px;border:1px solid rgba(255,190,220,.36);background:rgba(40,17,35,.86);backdrop-filter:blur(18px);box-shadow:0 14px 44px rgba(255,110,170,.22);font-size:13px;letter-spacing:2px;color:#ffeaf4;opacity:0;pointer-events:none;transition:opacity .22s,transform .22s;white-space:nowrap}
.gesture-flash.is-show{opacity:1;transform:translate(-50%,0) scale(1)}
.gf-dot{width:6px;height:6px;border-radius:50%;background:#ff8fc0;box-shadow:0 0 12px #ff8fc0;animation:gfPulse 1.2s ease-in-out infinite}
@keyframes gfPulse{0%,100%{opacity:.45;transform:scale(.8)}50%{opacity:1;transform:scale(1.15)}}

.help-overlay{position:fixed;inset:0;z-index:40;display:grid;place-items:center;background:rgba(3,2,7,.66);backdrop-filter:blur(10px)}
.help-card{position:relative;width:min(620px,calc(100vw - 40px));max-height:calc(100vh - 60px);overflow:auto;padding:34px 36px 30px;border-radius:24px;border:1px solid var(--line-strong);background:linear-gradient(160deg,rgba(31,18,40,.96),rgba(13,8,18,.96));box-shadow:0 40px 120px rgba(0,0,0,.6)}
.help-close{position:absolute;right:18px;top:18px;width:34px;height:34px;border-radius:50%;display:grid;place-items:center;border:1px solid var(--line);color:var(--ink-dim)}
.help-close:hover{color:#fff;border-color:var(--line-strong)}
.help-close svg{width:16px;height:16px}
.help-kicker{font-size:10px;letter-spacing:5px;color:var(--pink-soft)}
.help-card h2{font-family:var(--serif);font-size:31px;letter-spacing:5px;margin:10px 0 12px;color:#fff5fb}
.help-lead{font-size:12px;line-height:1.9;color:var(--ink-dim);padding-bottom:18px;border-bottom:1px solid var(--line)}
.help-gestures{display:grid;grid-template-columns:repeat(2,1fr);gap:12px;margin:18px 0}
.help-gesture{display:flex;gap:10px;padding:12px;border-radius:12px;background:rgba(255,240,248,.045);border:1px solid rgba(255,225,242,.1)}
.hg-ico{flex:0 0 30px;height:30px;border-radius:50%;display:grid;place-items:center;font-family:var(--serif);font-size:14px;color:#ffd7e9;border:1px solid rgba(255,160,205,.35);background:rgba(255,130,190,.1)}
.help-gesture b{display:block;font-size:12px;letter-spacing:1.5px;margin-bottom:5px;color:#fff}
.help-gesture p{font-size:10.5px;line-height:1.7;color:var(--ink-faint)}
.help-keys{display:flex;flex-wrap:wrap;gap:8px 16px;padding:14px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line);font-size:10.5px;color:var(--ink-dim)}
kbd{display:inline-grid;place-items:center;min-width:20px;height:20px;padding:0 5px;margin:0 2px;border-radius:5px;border:1px solid var(--line-strong);background:rgba(255,255,255,.06);font-family:var(--sans);font-size:10px;color:#ffe4f0}
.help-foot{padding-top:14px;font-size:10.5px;letter-spacing:1px;color:var(--ink-faint)}

button:focus-visible,a:focus-visible{outline:1.5px solid var(--pink);outline-offset:3px}
button:focus:not(:focus-visible),a:focus:not(:focus-visible){outline:none}

@media (max-width:1240px){
  .panel{width:266px;left:22px;top:80px;padding:16px 15px 13px}
  .topbar{padding:18px 24px}
  .camera-card{left:22px;bottom:24px;width:216px}
  .fullscreen-btn{right:24px;bottom:24px}
  .gesture-hint{bottom:28px;gap:18px;padding:10px 18px}
}
@media (max-width:1000px){
  .panel{width:252px;left:18px;top:74px}
  .brand-text small{display:none}
  .brand-text{font-size:19px}
  .icon-text span{display:none}
  .icon-text{width:36px;padding:0;justify-content:center}
  .shape-caption{bottom:96px}
  .camera-card{left:18px;bottom:18px;width:190px;padding:8px}
}
@media (max-width:760px){
  .panel{transform:scale(.92);transform-origin:left top;left:14px;top:66px}
  .gesture-hint{display:none}
  .camera-card{width:158px;left:14px;bottom:14px;padding:7px}
  .topbar{padding:14px 16px}
  .fullscreen-btn{width:46px;height:46px;right:16px;bottom:18px}
  .shape-caption{bottom:82px}
}
@media (max-height:720px){
  .panel{transform:scale(.9);transform-origin:left top;top:72px}
  .shape-caption{display:none}
  .gesture-hint{bottom:22px}
}

/* 全屏时只留星空：面板、按钮、提示、字幕全部淡出 */
body.is-cinema .topbar,
body.is-cinema .panel,
body.is-cinema .shape-caption,
body.is-cinema .camera-card,
body.is-cinema .gesture-hint,
body.is-cinema .fullscreen-btn,
body.is-cinema .toast,
body.is-cinema .gesture-flash,
body.is-cinema .help-overlay {
  opacity: 0 !important;
  visibility: hidden !important;
  pointer-events: none !important;
}