:root{--bg:#05070f;--ink:#eef2ff;--muted:#9aa7c7;--faint:#7f8cab;--line:rgba(160,180,255,.18);--card:rgba(13,18,36,.72);--card2:rgba(22,29,54,.82);--acc:#ff6b4a;--acc2:#7dd3fc;--ok:#6ee7b7;--warn:#fcd34d;--bad:#fda4af;--r:14px;--mono:ui-monospace,"SF Mono","Cascadia Mono",Consolas,monospace;--font:"PingFang SC","Microsoft YaHei","Noto Sans CJK SC",system-ui,sans-serif;color-scheme:dark}
*{box-sizing:border-box}html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--ink);font:16px/1.7 var(--font);overflow-x:hidden;min-height:100dvh}
a{color:var(--acc2);text-decoration:none}a:hover{text-decoration:underline}
h1,h2,h3{line-height:1.25;margin:0 0 .5em;font-weight:700}h1{font-size:clamp(30px,6vw,60px);letter-spacing:.01em}h2{font-size:clamp(23px,3.4vw,34px)}h3{font-size:18px}p{margin:0 0 .8em}
button{font:inherit;color:inherit;cursor:pointer;background:none;border:0}
input,textarea,select{font:inherit;color:inherit}
#nebula,#bgvideo,#bgshade{position:fixed;inset:0;width:100%;height:100%;z-index:-3}
#bgvideo{object-fit:cover;z-index:-2;opacity:0;transition:opacity 1.6s;mix-blend-mode:screen}
#bgvideo.on{opacity:.34}
#bgshade{z-index:-1;background:radial-gradient(120% 90% at 50% 40%,transparent 40%,rgba(3,5,12,.72) 100%);pointer-events:none}
#top{position:sticky;top:0;z-index:30;display:flex;align-items:center;gap:14px;padding:10px max(16px,env(safe-area-inset-left));background:linear-gradient(rgba(5,7,15,.86),rgba(5,7,15,.5));backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.brand{display:flex;align-items:center;gap:8px;color:var(--ink);font-weight:700;white-space:nowrap}.brand:hover{text-decoration:none}.brand small{color:var(--muted);font-weight:400;font-size:12px}
.dot{width:9px;height:9px;border-radius:50%;background:var(--acc);box-shadow:0 0 12px var(--acc);animation:pulse 2.4s infinite}
@keyframes pulse{50%{opacity:.45}}
#nav{display:flex;gap:2px;margin-left:auto;flex-wrap:wrap}
#nav a{padding:6px 10px;border-radius:9px;color:var(--muted);font-size:14px}#nav a:hover{color:var(--ink);text-decoration:none}#nav a.on{color:var(--ink);background:rgba(255,255,255,.09)}
#menu{display:none;margin-left:auto;padding:6px 12px;border:1px solid var(--line);border-radius:9px;font-size:14px}
@media(max-width:1000px){.brand small{display:none}#menu{display:block}#nav{display:none;position:absolute;top:100%;left:0;right:0;background:rgba(6,9,20,.97);padding:10px 16px;border-bottom:1px solid var(--line);grid-template-columns:repeat(3,1fr);gap:4px}#nav.open{display:grid}#nav a{padding:11px 8px;text-align:center}}
main{display:block}
.page{max-width:1140px;margin:0 auto;padding:28px 16px 110px}
.eyebrow{font:12px/1.4 var(--mono);letter-spacing:.14em;color:var(--acc2);text-transform:uppercase;margin-bottom:10px}
.lead{color:#c8d2ee;font-size:clamp(16px,2vw,19px);max-width:44em}
.muted{color:var(--muted)}.small{font-size:13.5px;line-height:1.6}.mono{font-family:var(--mono)}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:18px;backdrop-filter:blur(8px)}
.grid{display:grid;gap:14px}.g2{grid-template-columns:repeat(auto-fit,minmax(min(100%,420px),1fr))}.g3{grid-template-columns:repeat(auto-fill,minmax(min(100%,300px),1fr))}.g4{grid-template-columns:repeat(auto-fill,minmax(min(100%,230px),1fr))}
.sec{margin-top:44px}.row{display:flex;gap:10px;align-items:center;flex-wrap:wrap}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;min-height:44px;padding:9px 18px;border-radius:11px;background:var(--acc);color:#fff;font-weight:600;border:1px solid transparent;text-align:center}
.btn:hover{text-decoration:none;filter:brightness(1.1)}.btn.ghost{background:rgba(255,255,255,.06);border-color:var(--line);color:var(--ink);font-weight:500}.btn.sm{min-height:36px;padding:5px 12px;font-size:14px}.btn:disabled{opacity:.5}
.chip{display:inline-flex;align-items:center;min-height:36px;padding:4px 13px;border-radius:99px;border:1px solid var(--line);background:rgba(255,255,255,.04);color:var(--muted);font-size:14px}.chip:hover{color:var(--ink);text-decoration:none}.chip.on{color:#07101f;background:var(--acc2);border-color:var(--acc2);font-weight:600}
.tag{display:inline-block;padding:0 8px;border-radius:6px;font-size:12px;line-height:20px;border:1px solid currentColor}
.scramble{font-family:var(--mono)}
/* 入口 */
.hero{min-height:calc(88dvh - 60px);display:grid;align-content:center;padding:6vh 16px 4vh;max-width:1140px;margin:0 auto}
.hero h1 b{color:transparent;background:linear-gradient(95deg,#fff,#ffb199 45%,#ff6b4a);-webkit-background-clip:text;background-clip:text}
.hud{font:12px/1.6 var(--mono);color:var(--faint);display:flex;gap:18px;flex-wrap:wrap;margin:0 0 16px}.hud b{color:var(--acc2);font-weight:500}
.say{display:flex;gap:8px;max-width:680px;margin:22px 0 10px;padding:7px;border-radius:15px;background:rgba(8,12,26,.84);border:1px solid rgba(255,107,74,.5);box-shadow:0 0 34px rgba(255,107,74,.16)}
.say input{flex:1;min-width:0;background:none;border:0;outline:0;padding:9px 10px;font-size:16px}
.say input::placeholder{color:var(--faint)}
.presets{display:flex;gap:7px;flex-wrap:wrap;max-width:760px}
.claims{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,300px),1fr));gap:14px}
.claim b{display:block;font-size:19px;margin-bottom:4px}
.trick-tabs{display:flex;gap:7px;flex-wrap:wrap;margin:14px 0}
.trick{display:grid;grid-template-columns:minmax(0,1.1fr) minmax(0,1fr);gap:18px;align-items:center}
@media(max-width:760px){.trick{grid-template-columns:1fr}}
.stage{width:100%;aspect-ratio:16/10;border-radius:12px;background:#080c1c;border:1px solid var(--line);touch-action:manipulation;display:block}
/* 抽屉 */
#scrim{position:fixed;inset:0;background:rgba(2,4,10,.55);opacity:0;pointer-events:none;transition:.25s;z-index:39}
#scrim.on{opacity:1;pointer-events:auto}
#drawer{position:fixed;top:0;right:0;bottom:0;width:min(560px,100%);z-index:40;background:rgba(8,12,26,.97);border-left:1px solid var(--line);transform:translateX(102%);transition:transform .28s;overflow:auto;-webkit-overflow-scrolling:touch;padding:18px 18px 90px}
#drawer.on{transform:none}
@media(max-width:640px){#drawer{top:auto;left:0;width:100%;height:88dvh;border-left:0;border-top:1px solid var(--line);border-radius:18px 18px 0 0;transform:translateY(102%)}}
.d-head{display:flex;align-items:flex-start;gap:10px;justify-content:space-between}
.x{min-width:44px;min-height:44px;border-radius:11px;border:1px solid var(--line);font-size:18px;flex:none}
.levels{display:flex;gap:6px;flex-wrap:wrap;margin:10px 0}
.guess{border:1px solid rgba(125,211,252,.45);background:rgba(125,211,252,.07);border-radius:12px;padding:14px;margin:12px 0}
.guess .q{font-weight:600;margin-bottom:9px}.opt{display:block;width:100%;text-align:left;min-height:44px;padding:9px 13px;margin:6px 0;border-radius:10px;border:1px solid var(--line);background:rgba(255,255,255,.04)}.opt:hover{background:rgba(255,255,255,.09)}.opt.ok{border-color:var(--ok);background:rgba(110,231,183,.14)}.opt.no{border-color:var(--bad);background:rgba(253,164,175,.1)}
.fit{border-left:3px solid var(--acc);padding:6px 12px;margin:10px 0;background:rgba(255,107,74,.08);border-radius:0 8px 8px 0}
.formula{font:16px/1.4 var(--mono);padding:9px 12px;background:rgba(255,255,255,.05);border-radius:8px;margin:10px 0;overflow-x:auto;white-space:nowrap}
.myth{display:grid;grid-template-columns:1fr;gap:3px;padding:9px 12px;border:1px dashed var(--line);border-radius:9px;margin:7px 0;font-size:14.5px}.myth s{color:var(--bad);text-decoration-thickness:1px}.myth span{color:var(--ok)}
.redact{padding:11px 13px;border-radius:10px;background:repeating-linear-gradient(135deg,rgba(255,255,255,.04) 0 8px,rgba(0,0,0,.2) 8px 16px);border:1px solid var(--line);margin:10px 0}
.redact b{background:#000;color:#000;border-radius:3px;padding:0 5px;user-select:none}
.src{display:inline-flex;gap:5px;align-items:center;font-size:13px;margin:3px 7px 3px 0}.src i{font-style:normal;font:11px var(--mono);padding:0 5px;border-radius:4px;color:#07101f}
.conf{font-size:12.5px;padding:2px 8px;border-radius:7px;background:rgba(255,255,255,.07)}
/* 视频 */
.vid{border-radius:12px;overflow:hidden;background:#000;border:1px solid var(--line);position:relative}
.vid video,.vid img{display:block;width:100%;aspect-ratio:16/9;object-fit:cover;background:#000}
.vid .play{position:absolute;inset:0;display:grid;place-items:center;background:linear-gradient(transparent 50%,rgba(0,0,0,.65));width:100%;aspect-ratio:16/9}
.vid .play span{width:58px;height:58px;border-radius:50%;background:rgba(255,107,74,.92);display:grid;place-items:center;font-size:19px;padding-left:3px}
.vcap{padding:9px 12px;font-size:13.5px;line-height:1.5;background:#0a0f20}.vcap b{display:block;font-size:14.5px;margin-bottom:2px}.vcap .warn{color:var(--warn)}
.vid.pending{padding:14px;background:#0a0f20;border-style:dashed}
/* 3D */
.lab3d{position:relative;height:calc(100dvh - 58px);min-height:520px;overflow:hidden}
#stage3d{position:absolute;inset:0;touch-action:none}#stage3d canvas{display:block;width:100%!important;height:100%!important;touch-action:none}
.pins{position:absolute;inset:0;pointer-events:none;overflow:hidden}
.pin{position:absolute;left:0;top:0;pointer-events:auto;display:flex;align-items:center;gap:5px;font-size:12.5px;line-height:1;padding:6px 9px 6px 7px;min-height:32px;border-radius:99px;background:rgba(7,11,24,.8);border:1px solid rgba(255,255,255,.26);white-space:nowrap;will-change:transform}
.pin::before{content:"";width:8px;height:8px;border-radius:50%;background:var(--acc);box-shadow:0 0 8px var(--acc)}.pin.seen::before{background:var(--ok);box-shadow:0 0 8px var(--ok)}
.panel3d{position:absolute;left:14px;top:14px;width:min(320px,calc(100% - 28px));display:grid;gap:10px;max-height:calc(100% - 28px);overflow:auto}
.panel3d .card{padding:12px 13px}
.seg{display:flex;flex-wrap:wrap;gap:5px}
.slider{display:grid;grid-template-columns:62px 1fr 44px;gap:7px;align-items:center;font-size:13.5px;margin:7px 0}
input[type=range]{width:100%;min-height:32px;accent-color:var(--acc);touch-action:pan-y}
.note3d{position:absolute;left:14px;bottom:14px;right:14px;font-size:12.5px;color:var(--muted);pointer-events:none;text-align:right}
@media(max-width:760px){.panel3d{top:auto;bottom:8px;left:8px;right:8px;width:auto;max-height:44%}.panel3d .card{padding:9px 11px}.note3d{display:none}.panel3d .hide-m{display:none}}
/* 回收全程 */
.journey{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,1fr);gap:0;height:calc(100dvh - 58px);min-height:560px}
.j3d{position:relative;min-height:0}.j3d>div{position:absolute;inset:0}.j3d canvas{display:block;width:100%!important;height:100%!important;touch-action:none}
.jside{overflow:auto;padding:18px 16px 110px;background:rgba(6,9,20,.55);border-left:1px solid var(--line)}
.steps{display:flex;gap:4px;margin:10px 0 14px;overflow-x:auto;padding-bottom:6px}
.step{flex:none;min-height:36px;padding:3px 10px;border-radius:9px;border:1px solid var(--line);font-size:13px;color:var(--muted);white-space:nowrap}.step.on{background:var(--acc);border-color:var(--acc);color:#fff}
@media(max-width:820px){.journey{grid-template-columns:minmax(0,1fr);grid-template-rows:42dvh auto;height:auto;min-height:0}.j3d{height:42dvh;position:sticky;top:53px;z-index:5;background:rgba(5,7,15,.6)}.jside{border-left:0;overflow:visible}}
/* 图谱 */
.starmap{width:100%;display:block;border-radius:16px;background:rgba(5,8,20,.5);border:1px solid var(--line);touch-action:manipulation}
.legend{display:flex;gap:12px;flex-wrap:wrap;font-size:13px;color:var(--muted);margin:10px 0}.legend i{display:inline-block;width:10px;height:10px;border-radius:50%;margin-right:5px}
/* 实验 */
.simtabs{display:flex;gap:6px;flex-wrap:wrap;margin:12px 0 16px}@media(max-width:760px){.simtabs{flex-wrap:nowrap;overflow-x:auto;padding-bottom:6px;-webkit-overflow-scrolling:touch}.simtabs .chip{flex:none}.simtabs .chip .small{display:none}}
.sim{display:grid;grid-template-columns:minmax(0,1.5fr) minmax(0,1fr);gap:16px;align-items:start}
@media(max-width:820px){.sim{grid-template-columns:1fr}}
.sim canvas{width:100%;display:block;border-radius:12px;background:#070b19;border:1px solid var(--line);touch-action:pan-y}.sim canvas.touchy{touch-action:none}
.stat{font:22px/1.2 var(--mono);color:var(--acc2)}.stat small{font:12px var(--font);color:var(--muted);display:block;margin-top:3px}
.stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(110px,1fr));gap:10px;margin:10px 0}
.tbl{width:100%;border-collapse:collapse;font-size:14px}.tbl th,.tbl td{padding:8px 9px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}.tbl th{color:var(--muted);font-weight:500;white-space:nowrap}.tblw{overflow-x:auto;-webkit-overflow-scrolling:touch}
.tbl td:first-child,.tbl th:first-child{position:sticky;left:0;background:#0b1022}
.collab{counter-reset:s;display:grid;gap:10px}.cstep{display:grid;grid-template-columns:62px 1fr;gap:12px;padding:12px;border:1px solid var(--line);border-radius:12px;background:var(--card)}.cstep b.who{font:12px var(--mono);padding:3px 6px;border-radius:6px;background:rgba(125,211,252,.16);color:var(--acc2);height:max-content;text-align:center}.cstep.ai b.who{background:rgba(255,107,74,.2);color:#ffb199}
textarea.log{width:100%;min-height:68px;background:rgba(0,0,0,.28);border:1px solid var(--line);border-radius:10px;padding:9px 11px}
/* 智能体 */
#agent{position:fixed;right:max(14px,env(safe-area-inset-right));bottom:max(14px,env(safe-area-inset-bottom));z-index:35}
.fab{display:flex;align-items:center;gap:8px;padding:6px 15px 6px 7px;min-height:52px;border-radius:99px;background:linear-gradient(135deg,#1f2a55,#101733);border:1px solid rgba(255,255,255,.28);box-shadow:0 8px 28px rgba(0,0,0,.5);font-weight:600}
.fab svg{width:38px;height:44px}
.chatbox{position:fixed;right:14px;bottom:76px;width:min(420px,calc(100vw - 28px));height:min(66dvh,600px);display:grid;grid-template-rows:auto 1fr auto;background:rgba(9,13,28,.98);border:1px solid var(--line);border-radius:16px;box-shadow:0 18px 60px rgba(0,0,0,.6);overflow:hidden}
.chathead b{white-space:nowrap}.chathead{padding:10px 12px;border-bottom:1px solid var(--line);display:flex;align-items:center;gap:8px;font-size:14px}.chathead .x{min-width:36px;min-height:36px;margin-left:auto}
.chatlog{overflow:auto;padding:12px;display:flex;flex-direction:column;gap:9px;-webkit-overflow-scrolling:touch}
.msg{padding:9px 12px;border-radius:12px;font-size:14.5px;line-height:1.65;max-width:92%;white-space:pre-wrap;overflow-wrap:anywhere}.msg.me{align-self:flex-end;background:rgba(255,107,74,.2)}.msg.ai{align-self:flex-start;background:rgba(255,255,255,.06)}.msg .meta{display:block;margin-top:6px;font-size:12px;color:var(--faint)}
.chatin{display:flex;gap:6px;padding:9px;border-top:1px solid var(--line)}.chatin input{flex:1;min-width:0;background:rgba(0,0,0,.3);border:1px solid var(--line);border-radius:10px;padding:8px 11px;font-size:16px}
.acts{display:flex;flex-wrap:wrap;gap:5px;margin-top:7px}
/* 进度 */
.ring{width:128px;height:128px}.bar{height:8px;border-radius:9px;background:rgba(255,255,255,.08);overflow:hidden}.bar i{display:block;height:100%;background:var(--acc2)}
footer.foot{border-top:1px solid var(--line);padding:22px 16px 90px;color:var(--faint);font-size:13px;max-width:1140px;margin:30px auto 0}
.toast{position:fixed;left:50%;top:70px;transform:translateX(-50%);z-index:60;padding:9px 15px;border-radius:11px;background:rgba(14,20,42,.97);border:1px solid var(--ok);font-size:14px;max-width:calc(100vw - 32px)}
@media(prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}#bgvideo{display:none}}
.chatbox[hidden]{display:none}
[hidden]{display:none!important}

.more-btn{display:none}
@media(max-width:760px){.more-btn{display:inline-flex;margin-top:6px}.more3d{display:none}.more3d.open{display:block}.panel3d{max-height:52%}
body[data-page=rocket] #agent{bottom:auto;top:58px;right:8px}body[data-page=rocket] .fab{min-height:44px;padding:2px 11px 2px 3px;font-size:13px}body[data-page=rocket] .fab svg{width:28px;height:36px}body[data-page=rocket] .chatbox{bottom:12px;right:8px}}

/* 3D 页知识卡：手机上只盖下半屏，能看到模型 */
@media(max-width:640px){body[data-page=rocket] #drawer{height:58dvh}body[data-page=rocket] #scrim{background:transparent;pointer-events:none}}
@media(min-width:641px){body[data-page=rocket] #scrim{background:transparent;pointer-events:none}}
.inline-ai{margin-top:10px;padding:10px 12px;border-radius:10px;background:rgba(255,107,74,.09);border:1px solid rgba(255,107,74,.3);font-size:15px;white-space:pre-wrap}
.inline-ai .meta{display:block;margin-top:6px;font-size:12px;color:var(--faint)}
.timeline{display:grid;gap:6px}.tl{display:flex;gap:10px;font-size:14px}.tl i{font:12px var(--mono);font-style:normal;color:var(--faint);flex:none;width:96px}
.gaugegrid{display:grid;grid-template-columns:repeat(auto-fit,minmax(130px,1fr));gap:10px}
body[data-level=kid] .lead,body[data-level=kid] #drawer p{font-size:18px}
body[data-level=kid] .srcs{display:none}body[data-level=kid] .srcs.open{display:block}
.calc{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:8px;margin:8px 0}.calc label{font-size:13px;color:var(--muted);display:grid;gap:3px}.calc input{background:rgba(0,0,0,.3);border:1px solid var(--line);border-radius:9px;padding:7px 10px;min-height:40px}
.nosee{display:none}
@media(max-width:760px){#feat{grid-template-columns:1fr}}
button.card{color:inherit;width:100%}