/* OpenLabs /next/ — "terminal at night". Tokens first, then sections top to bottom. */
:root{--bg:#0b0f14;--surface:#111821;--surface2:#161f2a;--ink:#e9eef3;--muted:#8b98a7;--line:#22303d;--line2:#2c3b4a;--green:#46e3a0;--green-dim:#1d5c43;--green-ink:#06130d;--amber:#f2b35b;--red:#ff7b72;--mono:"JetBrains Mono",ui-monospace,SFMono-Regular,Menlo,monospace;--disp:"Space Grotesk",Inter,system-ui,sans-serif;--sans:Inter,"PingFang SC","Microsoft YaHei",system-ui,sans-serif}
*{box-sizing:border-box}html{scroll-behavior:smooth;scrollbar-color:#2c3b4a var(--bg)}body{margin:0;background:var(--bg);color:var(--ink);font:16px/1.55 var(--sans);-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}button{font:inherit;color:inherit;background:none;border:0;cursor:pointer;padding:0}
a:focus-visible,button:focus-visible,input:focus-visible{outline:2px solid var(--green);outline-offset:3px}
::selection{background:var(--green-dim);color:#fff}
.skip{position:absolute;top:-80px;left:10px}.skip:focus{top:10px;background:var(--surface);padding:10px;z-index:20}
.wrap{max-width:1240px;margin:0 auto;padding:0 40px}
.mono{font-family:var(--mono)}
.eyebrow{font:500 12px/1 var(--mono);letter-spacing:.1em;text-transform:uppercase;color:var(--green);margin:0 0 16px}
h1,h2,h3{font-family:var(--disp);letter-spacing:-.025em;text-wrap:balance;margin:0}
h2{font-size:44px;line-height:1.06;font-weight:700;margin-bottom:14px}
.lead{font-size:18px;line-height:1.55;color:var(--muted);max-width:640px;margin:0 0 40px}
code{font-family:var(--mono)}
.btn{display:inline-flex;align-items:center;gap:8px;padding:12px 18px;border-radius:6px;font-weight:600;font-size:15px;line-height:1.2;white-space:nowrap}
.btn-primary{background:var(--green);color:var(--green-ink)}.btn-primary:hover{filter:brightness(1.08)}
.btn-ghost{border:1px solid var(--line2);color:var(--ink)}.btn-ghost:hover{background:var(--surface)}
.btn-enter{border:1px solid var(--green);color:var(--green);background:rgba(70,227,160,.08)}.btn-enter:hover{background:rgba(70,227,160,.16)}
.btn-enter .play{display:inline-grid;place-items:center;width:22px;height:22px;border-radius:50%;background:var(--green);color:var(--green-ink);font-size:10px;padding-left:2px}
.chip{display:inline-block;font:12px/1.4 var(--mono);color:var(--green);border:1px solid var(--green-dim);padding:3px 8px;border-radius:4px;margin:4px 6px 0 0}
.chip-amber{color:var(--amber);border-color:#5a4221}
.frame{background:var(--surface);border:1px solid var(--line);border-radius:10px;overflow:hidden;box-shadow:0 24px 70px rgba(0,0,0,.5)}
.frame .bar{display:flex;align-items:center;gap:8px;padding:10px 14px;background:var(--surface2);border-bottom:1px solid var(--line);color:var(--muted);font:12px var(--mono)}
.frame .bar i{width:10px;height:10px;border-radius:50%;background:#2d3a48;display:inline-block}.frame .bar i:nth-child(1){background:#ff5f57}.frame .bar i:nth-child(2){background:#febc2e}.frame .bar i:nth-child(3){background:#28c840}
.frame .bar span{margin-left:auto}
.frame img{display:block;width:100%;height:auto}

/* header */
header{display:flex;align-items:center;gap:36px;height:72px;border-bottom:1px solid var(--line)}
.brand{font:700 22px var(--disp);letter-spacing:-.01em;display:inline-flex;align-items:center}.acct{display:inline-flex;align-items:center;gap:7px;font:500 14px var(--sans);color:var(--muted);text-decoration:none;padding:6px 2px;transition:color .15s}.acct:hover,.acct:focus-visible{color:var(--ink);outline:none}.acct svg{width:17px;height:17px;fill:none;stroke:currentColor;stroke-width:1.7;stroke-linecap:round}.brand-mark{width:26px;height:26px;flex:none;margin-right:9px;fill:var(--green)}.brand span{color:var(--green)}
nav{display:flex;gap:26px;font-size:14px;color:var(--muted)}nav a{white-space:nowrap}#lang{white-space:nowrap}@media(max-width:1100px){nav{gap:14px;font-size:13px}}@media(max-width:1010px){nav{display:none}}nav a:hover{color:var(--ink)}
.nav-r{margin-left:auto;display:flex;gap:10px;align-items:center}
#lang{font:500 13px var(--mono);color:var(--muted);padding:8px 10px;border-radius:6px}#lang:hover{color:var(--ink);background:var(--surface)}
.nav-r .btn{padding:8px 14px;font-size:13px}

/* hero */
.hero{display:grid;grid-template-columns:minmax(0,1.12fr) minmax(0,.88fr);gap:56px;align-items:center;padding:84px 0 56px}.hero>*{min-width:0}
h1{font-size:clamp(44px,5.1vw,74px);line-height:1.0;font-weight:700;margin:0 0 24px}
h1 .cur{display:inline-block;width:.46em;height:.88em;background:var(--green);vertical-align:-.08em;margin-left:.08em;animation:blink 1.1s steps(1) infinite}
@keyframes blink{50%{opacity:0}}
.sub{font-size:19px;line-height:1.55;color:var(--muted);max-width:560px;margin:0 0 30px}.sub b{color:var(--ink);font-weight:500}
.cta{display:flex;align-items:center;gap:14px;flex-wrap:wrap}

.hero-visual{position:relative}
.receipt{margin-top:12px;background:var(--surface2);border:1px solid var(--line2);border-radius:8px;padding:12px 14px;font:12px/1.6 var(--mono);color:var(--muted)}
.receipt b{color:var(--green);font-weight:500}.receipt .ok{color:var(--green)}

/* stats */
.strip{display:grid;grid-template-columns:repeat(5,1fr);border:1px solid var(--line);border-radius:8px;background:var(--surface);margin:16px 0 100px}
.strip div{padding:18px 20px;border-right:1px solid var(--line)}.strip div:last-child{border-right:0}
.strip b{display:block;font:700 28px/1 var(--disp);margin-bottom:6px;color:var(--ink)}.strip span{font:12px var(--mono);color:var(--muted)}

/* sections */
section{padding:0 0 110px}
.cards3{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.card{background:var(--surface);border:1px solid var(--line);border-radius:10px;padding:22px 22px 20px;min-width:0}
.card .err{font:13px/1.5 var(--mono);color:var(--red);background:#1a1216;border:1px solid #3a2328;border-radius:6px;padding:10px 12px;margin-bottom:16px;white-space:pre-wrap;overflow-wrap:anywhere}
.card .err b{color:var(--muted);font-weight:400}
.card h3{font-size:20px;line-height:1.25;margin:0 0 8px}.card p{color:var(--muted);margin:0 0 12px;font-size:15px}

/* canvas */
.canvas-frame{margin:0 0 28px}
.callouts{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.callout{border-top:1px solid var(--line2);padding-top:16px;min-width:0}
.callout b{display:block;font:500 12px var(--mono);color:var(--green);margin-bottom:8px}
.callout h3{font-size:18px;line-height:1.25;margin:0 0 8px}.callout p{color:var(--muted);font-size:15px;margin:0}
.canvas-note{font-size:13px;color:var(--muted);margin:26px 0 0}

/* environments */
.env-tools{display:flex;gap:6px;align-items:center;margin:26px 0 14px;font:13px var(--mono);flex-wrap:wrap}
.env-tools button{padding:8px 14px;border:1px solid var(--line);border-radius:999px;color:var(--muted)}.env-tools button:hover{color:var(--ink)}.env-tools button[aria-pressed=true]{background:var(--green);color:var(--green-ink);border-color:var(--green)}
.env-tools input{margin-left:auto;font:13px var(--mono);color:var(--ink);background:var(--surface);border:1px solid var(--line);border-radius:999px;padding:8px 14px;min-width:260px}
.env-tools input::placeholder{color:var(--muted)}
table{width:100%;border-collapse:collapse;font:14px var(--mono)}
td{padding:14px 10px;border-bottom:1px solid var(--line);vertical-align:top}
td.id{width:22%;color:var(--green);overflow-wrap:anywhere}td.n{width:24%;font:500 16px/1.3 var(--sans);color:var(--ink)}td.d{color:var(--muted);font-family:var(--sans);font-size:15px;line-height:1.45}
td.h{width:13%;white-space:nowrap;text-align:right}td.h b{display:block;color:var(--ink);font-weight:500}td.h span{color:var(--amber)}
.env-foot{display:flex;justify-content:space-between;gap:20px;padding:20px 10px 0;font:13px var(--mono);color:var(--muted)}
.env-empty{padding:30px 10px;color:var(--muted);font-family:var(--sans)}

/* how it works */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;align-items:stretch}
.step{background:var(--surface);border:1px solid var(--line);border-radius:10px;padding:22px;min-width:0;display:flex;flex-direction:column}.step>small:last-child{margin-top:auto;padding-top:10px}
.step .num{font:500 12px var(--mono);color:var(--green);margin-bottom:10px}
.step h3{font-size:20px;margin:0 0 8px}.step p{color:var(--muted);font-size:15px;margin:0 0 14px}
.install-tabs{display:flex;gap:4px;margin-bottom:8px}.install-tabs button{font:12px var(--mono);padding:6px 10px;border-radius:5px;color:var(--muted);border:1px solid transparent}.install-tabs button[aria-selected=true]{color:var(--ink);background:var(--surface2);border-color:var(--line)}
.term{background:#0d1218;border:1px solid var(--line);border-radius:8px;position:relative}
.term pre{margin:0;padding:14px 64px 14px 14px;font:12.5px/1.65 var(--mono);color:#c9d3dd;white-space:pre-wrap;overflow-wrap:anywhere}
.term .p{color:var(--green)}.term .c{color:var(--muted)}.term .ok{color:var(--green);font-weight:500}.term .am{color:var(--amber)}
.term .copy{position:absolute;top:8px;right:8px;font:11px var(--mono);color:var(--muted);border:1px solid var(--line);border-radius:4px;padding:3px 8px}.term .copy:hover{color:var(--ink)}
.step .frame{box-shadow:none;margin-top:4px}
.step small{display:block;font:12px var(--mono);color:var(--muted);margin-top:10px;line-height:1.5}

/* pricing */
.rates{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-bottom:22px}
.rate{background:var(--surface);border:1px solid var(--line);border-radius:10px;padding:22px}
.rate .hw{font:500 12px var(--mono);color:var(--muted);letter-spacing:.06em;text-transform:uppercase}
.rate .price{font:700 40px/1.1 var(--disp);margin:8px 0 2px}.rate .price span{font:400 14px var(--mono);color:var(--muted);letter-spacing:0;text-transform:none}
.rate p{color:var(--muted);font-size:14px;margin:10px 0 0}
.limits{display:grid;grid-template-columns:repeat(2,1fr);gap:8px 40px;list-style:none;padding:0;margin:0;font-size:15px;color:var(--muted)}
.limits li{padding:10px 0;border-top:1px solid var(--line)}.limits li b{color:var(--ink);font-weight:500}
.pricing-note{font-size:13px;color:var(--muted);margin:22px 0 0;max-width:720px}

/* custom + straight talk */
.two{display:grid;grid-template-columns:1fr 1fr;gap:60px}
.two h2{font-size:36px}
.recipe{font:12.5px/1.65 var(--mono);background:#0d1218;border:1px solid var(--line);border-radius:8px;padding:14px 16px;color:#c9d3dd;white-space:pre-wrap;margin:0}
.recipe .k{color:var(--green)}.recipe .c{color:var(--muted)}
.straight{list-style:none;padding:0;margin:0}
.straight li{border-top:1px solid var(--line);padding:14px 0;font-size:15px;color:var(--muted)}.straight li b{color:var(--ink);font-weight:500}

/* community */
.community{text-align:center;border-top:1px solid var(--line);padding:70px 0 90px}
.community h2{font-size:32px;margin-bottom:10px}.community>p{color:var(--muted);max-width:620px;margin:0 auto}
.logos{display:grid;grid-template-columns:repeat(6,1fr);gap:20px;margin:40px 0 20px}
.logo{height:72px;display:flex;justify-content:center;align-items:center;gap:7px}
.logo img{object-fit:contain;width:120px;height:44px;filter:grayscale(1) brightness(0) invert(1);opacity:.7}
.logo img[src$="apple.svg"]{width:28px}.logo img[src$="uw.png"]{width:32px;height:32px}
.logo span{font-size:9px;text-align:left;max-width:70px;color:var(--muted)}
.community small{display:block;font-size:12px;color:var(--muted)}.community details{font-size:11px;color:var(--muted);max-width:700px;margin:12px auto 0}.community details a{text-decoration:underline}

/* closing + footer */
.closing{text-align:center;padding:0 0 100px}
.closing h2{font-size:56px;margin-bottom:28px}.closing .cta{justify-content:center}
footer{border-top:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;gap:20px;padding:30px 0 40px;font:13px var(--mono);color:var(--muted);flex-wrap:wrap}
footer a:hover{color:var(--ink)}

@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}h1 .cur{animation:none}}
@media(max-width:1100px){.wrap{padding:0 26px}.hero{gap:36px}.strip{grid-template-columns:repeat(3,1fr)}.strip div:nth-child(3){border-right:0}.strip div:nth-child(n+4){border-top:1px solid var(--line)}.cards3,.steps,.rates{grid-template-columns:1fr 1fr}.callouts{grid-template-columns:1fr 1fr}.two{gap:36px}}
@media(max-width:760px){.wrap{padding:0 18px}header{height:64px;gap:18px}nav{display:none}.hero{grid-template-columns:minmax(0,1fr);padding:48px 0 32px;gap:28px}h1{font-size:44px}.sub{font-size:17px}.strip{grid-template-columns:1fr 1fr}.strip div:nth-child(2n){border-right:0}.strip div:nth-child(3){border-right:1px solid var(--line)}.strip div:nth-child(n+3){border-top:1px solid var(--line)}.strip div:last-child{grid-column:1/-1;border-top:1px solid var(--line)}section{padding-bottom:70px}h2{font-size:32px}.lead{font-size:16px;margin-bottom:26px}.cards3,.steps,.rates,.callouts,.two,.limits{grid-template-columns:1fr}.env-tools input{margin-left:0;width:100%;min-width:0}table,td{display:block}td{padding:4px 0;border:0}tr{display:block;padding:14px 0;border-bottom:1px solid var(--line)}td.id,td.n,td.h{width:auto}td.h{text-align:left;padding-top:6px}td.h b{display:inline;margin-right:10px}.two h2{font-size:28px}.closing h2{font-size:38px}.logos{grid-template-columns:repeat(3,1fr);gap:12px}.logo{height:56px}.logo img{width:85px;height:38px}}
.env-more{display:block;margin:14px auto 0;font:13px var(--mono);color:var(--green);border:1px solid var(--green-dim);border-radius:999px;padding:9px 18px}.env-more:hover{background:var(--surface)}.env-more[hidden]{display:none}

/* pricing comparison */
.compare{width:100%;border-collapse:collapse;font:14px var(--mono);margin:0 0 26px}
.compare th{text-align:left;font:500 12px var(--mono);letter-spacing:.06em;text-transform:uppercase;color:var(--muted);padding:0 12px 12px 0;border-bottom:1px solid var(--line2)}
.compare th:last-child,.compare td:last-child{text-align:right;padding-right:0}
.compare td{padding:16px 12px 16px 0;border-bottom:1px solid var(--line);vertical-align:top}
.compare td.hw b{display:block;font:600 16px var(--sans);color:var(--ink)}.compare td.hw span{color:var(--muted);font-size:12px}
.compare td.mkt{color:var(--muted)}.compare td.mkt small{display:block;font-size:11px;margin-top:3px;color:#6d7986}
.compare td.ours{font:700 22px var(--disp);color:var(--green)}.compare td.ours span{display:block;font:12px var(--mono);color:var(--muted);margin-top:3px}
@media(max-width:760px){.compare,.compare tbody,.compare tr{display:block}.compare thead{display:none}.compare td{display:block;padding:4px 0;border:0}.compare tr{padding:14px 0;border-bottom:1px solid var(--line)}.compare td:last-child{text-align:left}.compare td.ours{font-size:20px;padding-top:8px}}

/* courses */
.programs{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.program{background:var(--surface);border:1px solid var(--line);border-radius:10px;padding:22px;min-width:0}
.program-tag{font:500 12px var(--mono);color:var(--green);letter-spacing:.06em;text-transform:uppercase}
.program h3{font-size:20px;line-height:1.25;margin:10px 0 8px}.program-head p{color:var(--muted);font-size:14px;margin:0 0 16px}
.lab-list{list-style:none;padding:0;margin:0}
.lab-list li{display:grid;grid-template-columns:28px minmax(0,1fr) auto;gap:10px;padding:10px 0;border-top:1px solid var(--line);font-size:14px;line-height:1.4;align-items:baseline}
.lab-n{font:500 12px var(--mono);color:var(--muted)}.lab-h{font:12px var(--mono);color:var(--amber);white-space:nowrap}
@media(max-width:1100px){.programs{grid-template-columns:1fr}}

/* plans */
.plans{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin:0 0 44px}
.plan{background:var(--surface);border:1px solid var(--line);border-radius:10px;padding:24px 22px;display:flex;flex-direction:column;min-width:0}
.plan-hi{border-color:var(--green);box-shadow:0 0 0 1px var(--green-dim) inset}
.plan-name{font:500 12px var(--mono);letter-spacing:.08em;text-transform:uppercase;color:var(--green)}
.plan-price{font:700 40px/1.1 var(--disp);margin:10px 0 2px}.plan-price span{font:400 13px var(--mono);color:var(--muted)}
.plan-tag{color:var(--muted);font-size:14px;margin-bottom:16px}
.plan ul{list-style:none;padding:0;margin:0 0 20px;flex:1}
.plan li{padding:8px 0 8px 24px;border-top:1px solid var(--line);font-size:14px;line-height:1.45;position:relative;color:var(--ink)}
.plan li:before{position:absolute;left:0;top:8px;font:500 13px var(--mono)}
.plan li.ok:before{content:"✓";color:var(--green)}.plan li.no{color:var(--muted)}.plan li.no:before{content:"—";color:var(--muted)}
.plan li b{font-weight:600;color:var(--ink)}
.plan .btn{justify-content:center}
.sub-h{font-size:18px;font-weight:600;margin:0 0 14px;letter-spacing:-.01em}
@media(max-width:1100px){.plans{grid-template-columns:1fr}}

/* hero: the setup you no longer do */
.strike-list{display:flex;flex-wrap:wrap;align-items:center;gap:8px 16px;margin:-4px 0 22px;font:500 14px var(--mono);color:var(--muted)}
.strike-list s{color:var(--ink);text-decoration:line-through;text-decoration-color:var(--green);text-decoration-thickness:2px;opacity:.9}
@media(max-width:760px){.strike-list{font-size:13px;gap:6px 12px;margin-bottom:18px}}

/* canvas live replay */
.canvas-live .bar{gap:14px}.replay-stages{display:flex;gap:4px}.replay-stages b{font:500 11px var(--mono);letter-spacing:.06em;text-transform:uppercase;color:var(--muted);padding:3px 8px;border-radius:999px;border:1px solid transparent}.replay-stages b.on{color:var(--green);border-color:var(--green-dim)}
.replay-topic{font:12px var(--mono);color:var(--muted);margin-left:auto}.replay-toggle,.replay-zoom{font:12px var(--mono);color:var(--muted);border:1px solid var(--line2);border-radius:4px;padding:3px 10px}.replay-toggle:hover,.replay-zoom:hover{color:var(--ink)}
.canvas-stage{position:relative;height:560px;background:#040606;cursor:zoom-in}.canvas-stage iframe{width:100%;height:100%;border:0;display:block;pointer-events:none}
.replay-loading{position:absolute;inset:0;display:grid;place-items:center;background:#040606}.replay-loading img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.35}.replay-loading span{position:relative;font:12px var(--mono);color:var(--muted);background:rgba(4,6,6,.8);padding:6px 10px;border-radius:4px}.replay-loading[hidden]{display:none}
.replay-note{font-size:13px;color:var(--muted);margin:12px 0 32px;max-width:900px}
@media(max-width:1100px){.canvas-stage{height:460px}}
@media(max-width:760px){.canvas-live .bar{flex-wrap:wrap}.replay-stages{order:3;width:100%;justify-content:space-between}.replay-topic{display:none}.canvas-stage{height:380px;overflow-x:auto}.canvas-stage iframe{min-width:660px}.replay-loading{min-width:660px}}
/* courses */
.course-traits{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin:0 0 28px}
.course-traits div{border-top:1px solid var(--line2);padding-top:14px;min-width:0}.course-traits b{display:block;font:600 15px var(--disp);margin-bottom:6px}.course-traits span{font-size:14px;color:var(--muted);line-height:1.5}
.course-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
.course{background:var(--surface);border:1px solid var(--line);border-radius:10px;padding:22px;min-width:0;display:flex;flex-direction:column}
.course-top{display:flex;justify-content:space-between;gap:12px;font:12px var(--mono);color:var(--muted)}.course-top code{color:var(--green)}
.course h3{font-size:20px;line-height:1.25;margin:12px 0 8px}.course p{color:var(--muted);font-size:15px;margin:0 0 16px;flex:1}
.course-foot{display:flex;flex-wrap:wrap;gap:0 2px}
@media(max-width:1100px){.course-traits{grid-template-columns:1fr 1fr}}
@media(max-width:760px){.course-traits,.course-grid{grid-template-columns:1fr}}

/* hero replay + zoom */
.hero-live .canvas-stage{height:400px}.hero-live .bar{gap:10px}.hero-live .replay-stages b{padding:3px 6px}
.hero-live-note{font:12px/1.5 var(--mono);color:var(--muted);margin:10px 0 0}
body.has-zoom{overflow:hidden}body.has-zoom::after{content:"";position:fixed;inset:0;background:rgba(4,6,6,.78);z-index:55}
@media(max-width:1100px){.hero-live .canvas-stage{height:340px}}
@media(max-width:760px){.hero-live .canvas-stage{height:320px}}
.hero-live .replay-topic{display:none}.hero-live .replay-toggle{margin-left:auto}.replay-zoom{white-space:nowrap}
.course-foot{align-items:center}.course-open{margin-left:auto;padding:8px 14px;font-size:13px;margin-top:4px}@media(max-width:760px){.course-open{margin-left:0;width:100%;justify-content:center;margin-top:10px}}

/* hero install block */
.hero-install{margin:6px 0 28px}
.term-lg{background:#0d1218}.term-lg .term-bar{display:flex;align-items:center;gap:16px;padding:10px 16px;border-bottom:1px solid var(--line);flex-wrap:wrap}
.term-lg .term-label{font:12px var(--mono);color:var(--muted)}.term-lg .install-tabs{margin:0}.term-lg .install-tabs button{font-size:13px;padding:7px 12px}
.term-lg .copy{position:static;margin-left:auto;font-size:12px;padding:6px 12px}
.term-lg pre{font-size:14px;line-height:1.75;padding:18px 20px;color:#d7dee6}
@media(max-width:760px){.term-lg .term-bar{gap:10px}.term-lg .term-label{width:100%}.term-lg pre{font-size:12.5px;padding:14px}}

/* install commands: the commands pop, comments recede */
.install-code .cmd-line{color:var(--green);font-weight:500}.install-code .cmd-line b{color:var(--muted);font-weight:400;margin-right:10px}.install-code .cmt{color:#6d7986}
.term-lg pre{font-size:15px}

/* system architecture diagram */
.arch-section{padding:10px 0 100px}.arch-head{position:relative}.arch-toggle{position:absolute;right:0;top:4px}
.arch{position:relative;width:100%;overflow:hidden}
.arch-scale{transform-origin:0 0;width:1240px}
.arch-board{position:relative;width:1240px;height:910px;font-family:var(--sans)}
.arch-lines{position:absolute;inset:0;width:100%;height:100%;overflow:visible}
.arch-lines path{fill:none;stroke:var(--line2);stroke-width:1.5;stroke-dasharray:4 6;transition:stroke .3s}.arch-lines path.on{stroke:var(--green)}
.arch-lines .pkt{fill:var(--green);opacity:0;filter:drop-shadow(0 0 6px rgba(70,227,160,.9))}
.arch-node{position:absolute;background:var(--surface);border:1px solid var(--line2);border-radius:8px;padding:12px 14px;display:flex;flex-direction:column;gap:4px}
.arch-node b{font:600 15px var(--disp);color:var(--ink)}.arch-node span{font:11.5px/1.4 var(--mono);color:var(--muted)}
.arch-canvas{flex-direction:row;gap:14px;align-items:stretch}.arch-canvas-text{display:flex;flex-direction:column;gap:4px;flex:1;min-width:0}.arch-canvas .arch-ask{color:var(--ink);font-family:var(--sans);font-size:13px;line-height:1.35;margin-top:2px;min-height:34px}.arch-canvas .arch-result{color:var(--green);margin-top:auto;min-height:16px}
.arch-canvas-text>b{font-size:15px;line-height:1.15}
.arch-mini{width:296px;aspect-ratio:2/1;height:auto;flex:none;border:1px solid var(--line);border-radius:6px;background:#0d1219;overflow:visible;display:block;align-self:center}
.m-q{fill:none;stroke:var(--ink);stroke-width:1.5;stroke-linecap:round;stroke-linejoin:round;opacity:.9}
.m-f{fill:none;stroke:var(--green);stroke-width:1.4;stroke-linecap:round;stroke-linejoin:round}
.m-box{fill:rgba(255,255,255,.03);stroke:var(--line2);stroke-width:1}.m-code.on .m-box{stroke:var(--green)}
.m-bar{fill:#4b5866}.m-code.on .m-bar{fill:var(--green);opacity:.8}.m-run{fill:var(--green);opacity:0}
.m-ax{fill:none;stroke:var(--line2);stroke-width:1}
.m-line{fill:none;stroke:var(--green);stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round;filter:drop-shadow(0 0 3px rgba(70,227,160,.6))}
.m-chk circle{fill:var(--green)}.m-chk path{fill:none;stroke:#0b0f14;stroke-width:1.5;stroke-linecap:round;stroke-linejoin:round}
.m-lasso{fill:none;stroke:var(--amber);stroke-width:1.2;stroke-linecap:round;opacity:.9}
.m-cur path{fill:currentColor;stroke:#0b0f14;stroke-width:.8}.m-cur text{font:7.5px var(--mono);fill:currentColor}
.m-you{color:#fff}.m-agent{color:var(--green)}
.arch-hub{position:absolute;background:var(--surface);border:1px solid var(--line2);border-radius:10px;padding:14px 16px;display:flex;flex-direction:column}
.arch-hub-head{display:flex;flex-direction:column;gap:2px;margin-bottom:12px}.arch-hub-head b{font:600 15px var(--disp)}.arch-hub-head span{font:11.5px var(--mono);color:var(--muted)}
.arch-rt{display:grid;grid-template-columns:1fr 1fr 1fr 1fr 1.25fr;gap:8px;flex:1}
.arch-layer{border:1px solid var(--line);border-radius:6px;padding:9px 10px;display:flex;flex-direction:column;gap:3px;transition:border-color .3s,background .3s;min-width:0}
.arch-layer b{font:500 13px var(--sans);color:var(--ink)}.arch-layer span{font:10.5px/1.35 var(--mono);color:var(--muted)}
.arch-layer.on{border-color:var(--green);background:rgba(70,227,160,.07)}.arch-layer.on b{color:var(--green)}
.arch-status{display:flex;align-items:center;gap:8px;margin-top:12px;font:12px var(--mono);color:var(--muted);min-height:18px}
.arch-status i{width:7px;height:7px;border-radius:50%;background:var(--line2);flex-shrink:0}.arch-status i.on{background:var(--green);box-shadow:0 0 8px rgba(70,227,160,.8)}
.arch-tiles{display:grid;grid-template-columns:repeat(3,1fr);gap:6px;flex:1;align-content:start}
.arch-tile{height:64px;border:1px dashed var(--line);border-radius:6px;padding:7px 8px;display:flex;flex-direction:column;justify-content:center;gap:3px;transition:border-color .3s,background .3s,opacity .5s;min-width:0}
.arch-tile b{font:600 11.5px var(--mono);color:var(--muted)}.arch-tile span{font:9.5px/1.3 var(--mono);color:var(--muted)}
.arch-tile.is-idle{border-style:solid;border-color:var(--line2)}.arch-tile.is-idle b{color:var(--ink)}
.arch-tile.is-boot{border-style:solid;border-color:var(--amber);animation:archpulse 1s ease-in-out infinite}.arch-tile.is-boot b{color:var(--amber)}
.arch-tile.is-run{border-style:solid;border-color:var(--green);background:rgba(70,227,160,.08)}.arch-tile.is-run b{color:var(--green)}.arch-tile.is-run span{color:var(--green)}
.arch-tile.is-done{border-style:solid;border-color:var(--line2);opacity:.45}
.arch-tile.is-ghost{border-color:var(--line);opacity:.55;align-items:center;text-align:center}.arch-tile.is-ghost b{font-size:16px}
.arch-pool-foot{font:10.5px/1.4 var(--mono);color:var(--muted);margin-top:10px}
@keyframes archpulse{50%{box-shadow:0 0 0 3px rgba(242,179,91,.18)}}
.arch-stats{position:absolute;left:20px;right:20px;top:800px;display:grid;grid-template-columns:repeat(5,1fr);gap:16px;border-top:1px solid var(--line2);padding-top:16px}
.arch-stats>div b{display:block;font:700 30px/1 var(--disp);margin-bottom:6px}.arch-stats>div span{font:11.5px/1.4 var(--mono);color:var(--muted)}
.arch-note{font:10.5px/1.4 var(--mono);color:#6d7986;align-self:end}
.arch-band-label{position:absolute;font:500 11px var(--mono);letter-spacing:.08em;text-transform:uppercase;color:var(--green)}
.arch-edge-label{position:absolute;font:10.5px var(--mono);color:var(--muted);background:var(--bg);padding:0 4px}.arch-edge-right{text-align:right}
.arch-you{align-items:flex-start}.arch-you b{font-size:15px}
.arch-infra{position:absolute;background:var(--surface);border:1px solid var(--line2);border-radius:10px;padding:14px 16px;display:flex;flex-direction:column}
.arch-groups{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;flex:1}
.arch-group{border:1px solid var(--line);border-radius:8px;padding:10px 10px 8px;display:flex;flex-direction:column;gap:8px;transition:border-color .3s,background .3s;min-width:0}
.arch-group>b{font:500 12.5px var(--sans);color:var(--ink2);letter-spacing:.01em}
.arch-group.on{border-color:var(--green-dim);background:rgba(70,227,160,.04)}.arch-group.on>b{color:var(--green)}
.arch-chips{display:grid;grid-template-columns:1fr 1fr;gap:6px}
.arch-chip{border:1px solid var(--line);border-radius:6px;padding:7px 9px;display:flex;flex-direction:column;gap:2px;min-width:0;background:rgba(255,255,255,.015);transition:border-color .3s,background .3s}
.arch-chip b{font:500 12.5px var(--sans);color:var(--ink)}.arch-chip span{font:10px/1.35 var(--mono);color:var(--muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.arch-chip.on{border-color:var(--green);background:rgba(70,227,160,.09)}.arch-chip.on b{color:var(--green)}
.arch-pool{display:flex;flex-direction:column;gap:6px}.arch-pool>b{font:500 13px var(--sans);color:var(--ink)}.arch-pool.on>b{color:var(--green)}
.arch-pool .arch-tiles{grid-template-columns:repeat(3,1fr);gap:4px;flex:1;align-content:start}.arch-pool .arch-tile{height:38px;padding:4px 6px;gap:1px}.arch-pool .arch-tile b{font-size:10px}.arch-pool .arch-tile span{font-size:8.5px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.arch-pool .arch-tile.is-ghost b{font-size:13px}
@media(prefers-reduced-motion:reduce){.arch-tile.is-boot{animation:none}}
@media(max-width:1100px){.arch{overflow-x:auto;overflow-y:hidden}.arch-scale{transform:none!important}.arch{height:910px!important}}
@media(max-width:760px){.arch-toggle{position:static;margin:0 0 12px}}

/* editable sandbox board overlay */
.board-overlay{position:fixed;inset:0;z-index:70;padding:2vh 2vw;display:flex}.board-overlay[hidden]{display:none}
.board-frame{flex:1;display:flex;flex-direction:column;min-height:0;box-shadow:0 30px 90px rgba(0,0,0,.7)}
.board-frame .bar{gap:12px}.board-title{font:12px var(--mono);color:var(--muted)}
.board-tools{margin-left:auto;display:flex;gap:8px;align-items:center;flex-wrap:wrap;justify-content:flex-end}
.board-tools button{font:12px var(--mono);color:var(--muted);border:1px solid var(--line2);border-radius:4px;padding:5px 10px}.board-tools button:hover{color:var(--ink)}.board-tools button:disabled{opacity:.5}
.board-tools .btn{padding:6px 12px;font-size:12px}
.board-stage{position:relative;flex:1;min-height:0;background:#040606}.board-stage iframe{width:100%;height:100%;border:0;display:block}
.board-note{margin:0;padding:8px 14px;border-top:1px solid var(--line);font:11.5px/1.5 var(--mono);color:var(--muted);display:flex;gap:14px;flex-wrap:wrap}#board-msg{color:var(--green)}#board-msg:empty{display:none}
@media(max-width:760px){.board-overlay{padding:0}.board-frame{border-radius:0}.board-title{display:none}.board-note span:last-child{display:none}}
@media(max-width:760px){.acct span{display:none}.acct svg{width:20px;height:20px}.nav-r{gap:6px}#lang{white-space:nowrap}}@media(max-width:420px){header{gap:8px}.nav-r{gap:2px}#lang{padding:8px 6px}.nav-r .btn-ghost{padding:9px 11px;font-size:13px}.brand{font-size:19px}.brand-mark{width:22px;height:22px;margin-right:7px}}
/* 课程目录(Marvin 1013):组成条 = 领域筛选,下面全部课程网格 */
.cat{margin-top:8px}
.cat-head{display:flex;justify-content:space-between;align-items:flex-end;gap:24px;flex-wrap:wrap;margin-bottom:18px}
.cat-count{font:500 15px var(--sans);color:var(--ink)}.cat-count b{font:700 44px/1 var(--disp);color:var(--green);margin-right:6px;letter-spacing:-.02em}
.cat-dim{color:var(--muted)}
.cat-note{margin:0;max-width:520px;font:13px/1.55 var(--mono);color:var(--muted)}
.cat-bar{display:flex;gap:3px;height:12px;margin-bottom:14px}
.cat-seg{min-width:4px;border-radius:2px;background:var(--green);opacity:.6;cursor:pointer;transition:opacity .2s}
.cat-seg:nth-child(even){opacity:.35}
.cat-seg:hover,.cat-seg.is-on{opacity:1}.cat-seg.is-off{opacity:.12}
.cat-chips{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:18px}
.cat-chip{display:inline-flex;align-items:center;gap:8px;font:13px var(--sans);color:var(--muted);background:transparent;border:1px solid var(--line);border-radius:999px;padding:6px 12px;cursor:pointer;transition:border-color .15s,color .15s}
.cat-chip b{font:600 12px var(--mono);color:var(--ink)}
.cat-chip:hover,.cat-chip:focus-visible{border-color:var(--green-dim);color:var(--ink);outline:none}
.cat-chip.is-on{border-color:var(--green);color:var(--green)}.cat-chip.is-on b{color:var(--green)}
.cat-filter{margin:-6px 0 14px}
.cat-clear{background:none;border:0;padding:0;font:13px var(--mono);color:var(--muted);cursor:pointer}.cat-clear:hover{color:var(--ink)}
.cat-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px}
.cat-tile{display:flex;flex-direction:column;gap:8px;min-width:0;padding:14px 16px;background:var(--surface);border:1px solid var(--line);border-radius:8px;text-decoration:none;color:var(--ink);transition:border-color .15s,transform .15s}
.cat-tile:hover,.cat-tile:focus-visible{border-color:var(--green-dim);transform:translateY(-1px);outline:none}
.cat-area{font:11px/1 var(--mono);letter-spacing:.06em;text-transform:uppercase;color:var(--green)}
.cat-title{font:500 15px/1.35 var(--sans);flex:1}
.cat-foot{display:flex;align-items:center;gap:8px;font:12px var(--mono);color:var(--muted)}
.cat-prog{display:flex;gap:2px}.cat-prog i{width:5px;height:5px;border-radius:1px;background:var(--line2)}.cat-prog i.on{background:var(--green)}
.cat-go{margin-left:auto;color:var(--muted)}.cat-tile:hover .cat-go{color:var(--green)}
.cat-more{display:block;margin:16px auto 0}
@media(max-width:1000px){.cat-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:600px){.cat-grid{grid-template-columns:1fr}.cat-count b{font-size:36px}}
.install-guide{margin:10px 0 0;font-size:14px}.install-guide a{color:var(--green);text-decoration:underline;text-underline-offset:3px}
/* 1014:环境总数 + 课程封面 */
.env-total{display:flex;align-items:baseline;flex-wrap:wrap;gap:8px 12px;margin:0 0 22px;font:500 16px var(--sans);color:var(--ink)}
.env-total b{font:700 44px/1 var(--disp);color:var(--green);letter-spacing:-.02em}
.env-total-note{flex-basis:100%;font:13px/1.55 var(--mono);color:var(--muted)}
.course-cover{display:block;width:calc(100% + 44px);margin:-22px -22px 18px;aspect-ratio:16/7;height:auto;object-fit:cover;border-radius:10px 10px 0 0;border-bottom:1px solid var(--line);background:#0a0d12}
.cat-tile{padding:0;overflow:hidden}
.cat-cover{display:block;width:100%;height:auto;aspect-ratio:16/8;object-fit:cover;border-bottom:1px solid var(--line);background:#0a0d12}
.cat-tile>.cat-area{margin:12px 16px 0}.cat-tile>.cat-title{margin:0 16px}.cat-tile>.cat-foot{margin:0 16px 14px}
td.h span.rd-now{color:var(--green)}td.h span.rd-auto{color:var(--amber)}

/* 1014 环境行可展开 */
#env-rows tr.env-row{cursor:pointer}#env-rows tr.env-row:hover td,#env-rows tr.env-row.is-open td{background:rgba(70,227,160,.04)}#env-rows tr.env-row:focus-visible{outline:1px solid var(--green-dim);outline-offset:-1px}
.env-detail td{padding:0 12px 16px!important;border-top:0!important}.env-detail-in{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;font:12.5px/1.5 var(--mono);color:var(--muted)}.env-detail-in i{font-style:normal;color:var(--line2);margin:0 8px}.env-run{font:500 13px var(--sans);color:var(--green);text-decoration:none;white-space:nowrap}.env-run:hover{text-decoration:underline}
td.h span.rd-listed{color:var(--muted)}
.env-pager{display:flex;justify-content:center;align-items:center;flex-wrap:wrap;gap:6px;margin:20px 0 6px}.env-pager button{min-width:36px;height:36px;padding:0 10px;border:1px solid var(--line);border-radius:8px;background:transparent;color:var(--muted);font:500 13px var(--mono);cursor:pointer}.env-pager button:hover:not(:disabled){border-color:var(--green-dim);color:var(--ink)}.env-pager button.is-on{background:var(--green);border-color:var(--green);color:var(--green-ink)}.env-pager button:disabled{opacity:.35;cursor:default}.env-pager .pg-gap{color:var(--muted);padding:0 2px}

/* 1027 新首页:首屏输入框 + 装配动画(Marvin:OpenAI 布局 + Modal 装配感;抽象灰块,不调模型) */
.hero-ask{display:flex;flex-direction:column;align-items:center;text-align:center;padding:72px 0 64px}
.hero-ask .eyebrow{margin-bottom:18px}
.hero-ask h1{font-size:clamp(40px,5vw,72px);line-height:1.02;font-weight:700;margin:0 0 22px;max-width:16ch}
.hero-ask h1 em{font-style:normal;color:var(--green)}
.hero-ask .sub{max-width:720px;margin:0 auto 30px;font-size:18px}
.ask{width:100%;max-width:760px;display:flex;flex-direction:column;align-items:stretch;gap:10px;position:relative}
.ask-box{display:flex;align-items:center;gap:12px;padding:14px 14px 14px 18px;background:var(--surface);border:1px solid var(--line2);border-radius:14px;box-shadow:0 20px 60px rgba(0,0,0,.45);transition:border-color .15s,box-shadow .15s;text-align:left;cursor:text}
.ask-box.is-focus{border-color:var(--green);box-shadow:0 0 0 3px rgba(70,227,160,.15),0 20px 60px rgba(0,0,0,.45)}
.ask-prompt{font:600 18px var(--mono);color:var(--green);flex:none}
.ask-field{position:relative;flex:1;min-width:0;height:28px}
.ask-field input{position:absolute;inset:0;width:100%;height:100%;background:none;border:0;outline:0;color:var(--ink);font:17px/28px var(--mono);padding:0}
.ask-field input::placeholder{color:#55606c}
.ask-ghost{position:absolute;inset:0;display:none;align-items:center;font:17px/28px var(--mono);color:var(--ink);white-space:nowrap;overflow:hidden;pointer-events:none}
.ask-ghost.on{display:flex}.ask-box.is-focus .ask-ghost{display:none}
.ask-cur{display:inline-block;width:9px;height:20px;background:var(--green);margin-left:2px;animation:blink 1.1s steps(1) infinite}
.ask-go{display:inline-flex;align-items:center;gap:8px;flex:none;font:600 14px var(--sans);color:var(--muted);background:var(--surface2);border:1px solid var(--line2);border-radius:9px;padding:9px 12px 9px 14px;transition:background .15s,color .15s,border-color .15s}
.ask-go kbd{font:12px var(--mono);color:inherit;border:1px solid currentColor;border-radius:4px;padding:0 5px;opacity:.7}
.ask-go.is-ready,.ask-box.is-focus .ask-go{background:var(--green);color:var(--green-ink);border-color:var(--green)}.ask-go.is-ready kbd{opacity:.9}
.ask-sugs{position:absolute;top:calc(100% - 4px);left:0;right:0;z-index:5;list-style:none;margin:0;padding:6px;background:var(--surface);border:1px solid var(--line2);border-radius:12px;box-shadow:0 20px 60px rgba(0,0,0,.5);text-align:left}
.ask-sugs[hidden]{display:none}
.ask-sugs button{display:flex;align-items:center;gap:12px;width:100%;padding:10px 12px;border-radius:8px;font:15px var(--sans);color:var(--ink);text-align:left}
.ask-sugs button:hover,.ask-sugs button:focus-visible{background:var(--surface2);outline:none}
.ask-sugs .k{font:500 11px var(--mono);letter-spacing:.06em;text-transform:uppercase;color:var(--green);width:52px;flex:none}
.ask-sugs em{margin-left:auto;font:12px var(--mono);color:var(--muted);font-style:normal}
.ask-hint{margin:0;font:13px var(--mono);color:var(--muted);text-align:center}.ask-hint a{color:var(--green)}.ask-hint a:hover{text-decoration:underline}
.ask:has(.ask-sugs:not([hidden])) .ask-hint{visibility:hidden}

.assembly{width:100%;max-width:960px;margin-top:44px;display:grid;grid-template-columns:minmax(0,.9fr) minmax(0,1.4fr);gap:18px;background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:18px;text-align:left;transition:opacity .4s}
.assembly.is-paused{opacity:.45}
.asm-title{display:flex;justify-content:space-between;gap:10px;margin:0 0 12px;font:500 11px var(--mono);letter-spacing:.08em;text-transform:uppercase;color:var(--green)}
.asm-clock{color:var(--muted);letter-spacing:0;font-variant-numeric:tabular-nums}
.asm-steps ol{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:8px}
.asm-steps li{display:grid;grid-template-columns:14px 1fr;gap:10px 10px;align-items:baseline;font:14px/1.35 var(--sans);color:var(--muted);transition:color .3s}
.asm-steps li i{width:9px;height:9px;border-radius:50%;border:1.5px solid var(--line2);display:inline-block;transition:background .3s,border-color .3s,box-shadow .3s;align-self:center;justify-self:center}
.asm-steps li em{grid-column:2;font:11.5px var(--mono);color:#6d7986;font-style:normal;min-height:14px}
.asm-steps li.on{color:var(--ink)}.asm-steps li.on i{border-color:var(--green);background:var(--green);box-shadow:0 0 10px rgba(70,227,160,.8)}
.asm-steps li.done{color:var(--ink)}.asm-steps li.done i{border-color:var(--green);background:var(--green-dim)}.asm-steps li.done em,.asm-steps li.on em{color:var(--muted)}
.asm-graph{position:relative;aspect-ratio:2/1;background:#0a0e13;border:1px solid var(--line);border-radius:10px;overflow:hidden;min-width:0;background-image:radial-gradient(rgba(255,255,255,.05) 1px,transparent 1px);background-size:14px 14px}
.asm-lines{position:absolute;inset:0;width:100%;height:100%}
.asm-lines path{fill:none;stroke:var(--line2);stroke-width:1.5;stroke-dasharray:4 5;opacity:0;transition:opacity .4s,stroke .4s}.asm-lines path.on{opacity:1;stroke:var(--green)}
.asm-card{position:absolute;background:#141b24;border:1px solid var(--line2);border-radius:6px;padding:7px 9px;display:flex;flex-direction:column;gap:5px;opacity:0;transform:translateY(8px) scale(.96);transition:opacity .35s,transform .35s,border-color .35s}
.asm-card.on{opacity:1;transform:none}.assembly.is-done .asm-card{border-color:#34475a}
.asm-card b{font:500 10.5px var(--mono);color:var(--muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.asm-card i{display:block;height:4px;border-radius:2px;background:#2a3542;width:85%}.asm-card i:nth-of-type(2){width:65%}.asm-card i:nth-of-type(3){width:75%}
.asm-card code{display:block;margin-top:auto;height:14px;border-radius:3px;background:#0f1a16;border:1px solid var(--green-dim)}
.asm-card.on b{color:var(--ink)}

/* 1027 六根支柱 + 知识图谱 */
.pillars{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;padding:0 0 100px}
.pillar{background:var(--surface);border:1px solid var(--line);border-radius:10px;padding:20px 20px 16px;display:flex;flex-direction:column;gap:8px;min-width:0}
.pillar b{font:600 17px var(--disp);letter-spacing:-.01em}.pillar span{font-size:14px;line-height:1.5;color:var(--muted);flex:1}
.pillar a{font:500 13px var(--mono);color:var(--green)}.pillar a:hover{text-decoration:underline}
.graph-frame{max-width:980px;margin:0 auto}.graph-frame img{width:100%;height:auto;display:block}
.graph-note{font-size:13px;color:var(--muted);margin:14px auto 0;max-width:980px}

/* 1027 测试阶段额度 */
.credit{display:grid;grid-template-columns:auto 1fr auto;gap:28px;align-items:center;background:var(--surface);border:1px solid var(--green);border-radius:12px;padding:26px 28px;margin:0 0 30px;box-shadow:0 0 0 1px var(--green-dim) inset}
.credit-amt b{display:block;font:700 56px/1 var(--disp);color:var(--green);letter-spacing:-.03em}.credit-amt span{display:block;font:12px var(--mono);color:var(--muted);margin-top:6px}
.credit-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:6px;font-size:15px;color:var(--ink)}
.credit-list li{padding-left:22px;position:relative}.credit-list li:before{content:"✓";position:absolute;left:0;color:var(--green);font:500 13px var(--mono)}
@media(max-width:1100px){.pillars{grid-template-columns:repeat(2,1fr)}.credit{grid-template-columns:1fr;gap:18px}.credit .btn{justify-self:start}}
@media(max-width:760px){.hero-ask{padding:40px 0 40px}.hero-ask h1{font-size:38px}.hero-ask .sub{font-size:16px}.ask-box{padding:10px 10px 10px 14px;border-radius:12px}.ask-field input,.ask-ghost{font-size:15px}.ask-go span{display:none}.ask-go{padding:9px 10px}.assembly{grid-template-columns:1fr;margin-top:28px;padding:14px}.asm-graph{aspect-ratio:2/1}.pillars{grid-template-columns:1fr;padding-bottom:70px}.credit{padding:20px}.credit-amt b{font-size:44px}}
@media(prefers-reduced-motion:reduce){.ask-cur{animation:none}.asm-card{transition:none}}

/* 1027 晚:首屏左右分栏 —— 左=提问 + 装配过程,右=探索气泡群(Marvin:像音乐 App 选兴趣,帮不知道学什么的人想起来) */
.hero-ask{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);gap:48px;align-items:start;text-align:left;padding:56px 0 72px}
.hero-ask .hero-l{display:flex;flex-direction:column;align-items:stretch;min-width:0}
.hero-ask h1{font-size:clamp(36px,3.6vw,54px);line-height:1.06;max-width:none;margin-bottom:18px}
.hero-ask .sub{margin:0 0 24px;font-size:17px;max-width:none}
.hero-ask .ask{max-width:none}.ask-hint{text-align:left}
.hero-ask .assembly{max-width:none;margin-top:26px;grid-template-columns:minmax(0,1fr) minmax(0,1.15fr);gap:14px;padding:14px}
.hero-ask .asm-steps li{font-size:13px;gap:6px 9px}.hero-ask .asm-steps ol{gap:6px}.hero-ask .asm-steps li em{font-size:10.5px;min-height:12px}
.hero-r{position:relative;min-width:0;display:flex;flex-direction:column;gap:10px;align-self:stretch}
.bubbles-title{margin:0;font:500 12px/1 var(--mono);letter-spacing:.1em;text-transform:uppercase;color:var(--green)}
.topic-search{position:relative;display:flex;align-items:center;gap:10px;padding:0 14px;height:44px;background:var(--surface);border:1px solid var(--line2);border-radius:12px;transition:border-color .15s,box-shadow .15s}
.topic-search:focus-within{border-color:var(--green-dim);box-shadow:0 0 0 3px rgba(70,227,160,.08)}
.topic-search svg{width:16px;height:16px;flex:none;fill:none;stroke:var(--muted);stroke-width:2;stroke-linecap:round}
.topic-search input{flex:1;min-width:0;height:100%;background:none;border:0;outline:none;color:var(--ink);font:15px var(--sans)}
.topic-search input::placeholder{color:var(--muted)}
.topic-search input::-webkit-search-cancel-button{filter:invert(.6)}
.bubbles{position:relative;flex:1;min-height:560px;border:1px solid var(--line);border-radius:16px;background:radial-gradient(ellipse at 30% 20%,rgba(70,227,160,.07),transparent 55%),radial-gradient(ellipse at 75% 80%,rgba(139,124,255,.07),transparent 55%),var(--surface);overflow:hidden;touch-action:manipulation}
.bubbles-wrap{position:relative;flex:1;display:flex;flex-direction:column;min-height:0}
.bubbles-shuffle{position:absolute;top:12px;right:12px;z-index:5;display:inline-flex;align-items:center;gap:6px;padding:7px 12px 7px 10px;font:500 13px var(--sans);color:var(--ink);background:rgba(17,24,33,.82);border:1px solid var(--line2);border-radius:999px;backdrop-filter:blur(6px);-webkit-backdrop-filter:blur(6px);cursor:pointer;transition:border-color .15s,color .15s,background .15s}
.bubbles-shuffle:hover,.bubbles-shuffle:focus-visible{border-color:var(--green-dim);color:var(--green);background:rgba(17,24,33,.95);outline:none}
.bubbles-shuffle svg{width:15px;height:15px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round;transition:transform .5s ease}
.bubbles-shuffle.is-spin svg{transform:rotate(360deg)}
.bubbles-status{position:absolute;top:12px;left:12px;z-index:5;margin:0;max-width:calc(100% - 150px);padding:7px 12px;font:500 12.5px var(--sans);color:var(--ink);background:rgba(17,24,33,.82);border:1px solid var(--line2);border-radius:999px;backdrop-filter:blur(6px);-webkit-backdrop-filter:blur(6px);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.bubbles-status b{color:var(--green);font-weight:600}
.bubbles-empty{position:absolute;inset:0;z-index:4;display:flex;align-items:center;justify-content:center;padding:24px}
.bubbles-empty[hidden]{display:none}
.bubbles-shuffle[hidden],.bubbles-status[hidden]{display:none}
.bubbles-empty .be-card{max-width:420px;text-align:center;padding:28px 26px;background:var(--surface2);border:1px solid var(--line2);border-radius:16px;box-shadow:0 20px 60px rgba(0,0,0,.45);animation:bubin .35s ease-out}
.bubbles-empty .be-icon{width:44px;height:44px;margin:0 auto 14px;border-radius:50%;display:grid;place-items:center;background:rgba(242,179,91,.12);color:var(--amber);font:600 22px var(--sans)}
.bubbles-empty h3{margin:0 0 8px;font:600 18px/1.35 var(--sans);color:var(--ink);text-wrap:balance}
.bubbles-empty h3 q{color:var(--amber);quotes:"“" "”"}
.bubbles-empty p{margin:0 0 18px;font:14px/1.55 var(--sans);color:var(--muted)}
.bubbles-empty .be-go{display:inline-flex;align-items:center;gap:8px;padding:11px 18px;font:600 15px var(--sans);color:var(--green-ink);background:var(--green);border-radius:10px;cursor:pointer;transition:filter .15s}
.bubbles-empty .be-go:hover,.bubbles-empty .be-go:focus-visible{filter:brightness(1.08);outline:none;box-shadow:0 0 0 3px rgba(70,227,160,.25)}
.bubbles-empty .be-clear{display:block;margin:12px auto 0;font:13px var(--sans);color:var(--muted);text-decoration:underline;text-underline-offset:3px;cursor:pointer}
.bubbles-empty .be-clear:hover{color:var(--ink)}
.topic-search.is-none{border-color:rgba(242,179,91,.55)}
.bubble{position:absolute;left:0;top:0;display:flex;align-items:center;justify-content:center;text-align:center;border-radius:50%;padding:12px;cursor:pointer;user-select:none;will-change:transform;transition:box-shadow .2s,filter .2s;background:radial-gradient(circle at 32% 28%,rgba(255,255,255,.18),transparent 45%),var(--bb);box-shadow:inset 0 0 0 1px rgba(255,255,255,.08),0 10px 30px rgba(0,0,0,.35);color:var(--bf)}
.bubble:hover,.bubble:focus-visible{filter:brightness(1.15);box-shadow:inset 0 0 0 1px rgba(255,255,255,.2),0 0 0 3px rgba(255,255,255,.08),0 14px 40px rgba(0,0,0,.45);outline:none;z-index:2}
.bubble.is-leaving{opacity:0;transform:scale(.6)!important;transition:opacity .5s,transform .5s}
.bubble.is-entering{animation:bubin .6s ease-out}
@keyframes bubin{from{opacity:0;transform:scale(.5)}}
.bubble span{font:600 13px/1.25 var(--sans);letter-spacing:-.01em;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.bubble.lg span{font-size:15px}.bubble.sm span{font-size:11.5px}
.bubble small{position:absolute;bottom:10%;left:0;right:0;font:500 9px/1 var(--mono);letter-spacing:.08em;text-transform:uppercase;opacity:.65}
.bubbles-foot{margin:0;display:flex;align-items:center;gap:10px;font:12px var(--mono);color:var(--muted);flex-wrap:wrap}
.bk{display:inline-flex;align-items:center;gap:6px}.bk:before{content:"";width:9px;height:9px;border-radius:50%;display:inline-block}
.bk-course:before{background:#46e3a0}.bk-env:before{background:#8b7cff}
@media(max-width:1100px){.hero-ask{grid-template-columns:1fr;gap:28px}.bubbles{min-height:420px}}
@media(max-width:760px){.hero-ask{padding:36px 0 44px}.hero-ask h1{font-size:34px}.bubbles{min-height:360px}.bubble span{font-size:12px}.bubble.lg span{font-size:13px}}
.ask-box.is-demo input::placeholder{color:transparent}
.asm-card b{font-size:9.5px}

/* 1027 22:30:气泡更密更小,持续刷新;slogan 更大 */
.bubble{padding:8px}.bubble span{font-size:12px;line-height:1.2}.bubble.lg span{font-size:13.5px}.bubble.sm span{font-size:10.5px}.bubble small{font-size:8px;bottom:9%}
.hero-ask h1{font-size:clamp(44px,4.6vw,66px);margin-bottom:28px}

/* 1027 23:00 知识图谱区块:中英各一段真实 case 录屏(全息卡片板),按页面语言切换 */
.graph-cases{max-width:1100px;margin:0 auto}
.graph-case{margin:0}.graph-case video{display:block;width:100%;height:auto;background:#050709}
.graph-case figcaption{font-size:14px;line-height:1.6;color:var(--muted);margin:12px 4px 0}.graph-case figcaption b{color:var(--ink);font-weight:600}
html[lang="zh-CN"] .only-en,html[lang="en"] .only-zh{display:none}
.graph-note{max-width:1100px}
@media(max-width:420px){.nav-r{gap:2px}#lang{padding-left:6px;padding-right:6px}.nav-r .btn{padding:7px 10px;font-size:12.5px}.brand{font-size:17px}.brand-mark{width:22px;height:22px;margin-right:7px}}
@media(max-width:380px){.brand{font-size:15.5px}.brand-mark{width:20px;height:20px;margin-right:6px}.nav-r .btn{padding:7px 8px;font-size:12px}#lang{font-size:12.5px}}