/* =========================================================   飘雪科技 · 雪落成码 Design System   Dark theme locked (brand: deep space ink blue)   Shape rule: chamfered corners for cards/buttons, hexagons for nodes/icons   z-index scale: snow 0 / content 1 / progress 51 / nav 50 / toast 60   ========================================================= */:root{  --bg:#0A1220;  --bg-2:#0D1729;  --surface:#0F1A2E;  --surface-2:#13203A;  --ink:#EEF4FA;  --ink-2:#A9B7C8;  --ink-3:#6E7F95;  --line:rgba(160,205,235,.14);  --line-2:rgba(160,205,235,.26);  --accent:#22D3EE;  --accent-ink:#04212A;  --accent-soft:rgba(34,211,238,.12);  --sans:"Noto Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;  --mono:"JetBrains Mono",ui-monospace,"SFMono-Regular",Consolas,monospace;  --cut:18px;  --cut-sm:8px;  --section:120px;  --ease:cubic-bezier(.16,1,.3,1);  --hex:polygon(50% 0,100% 25%,100% 75%,50% 100%,0 75%,0 25%);}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;scroll-padding-top:88px;-webkit-text-size-adjust:100%}
body{background:var(--bg);color:var(--ink);font-family:var(--sans);font-size:16px;line-height:1.75;-webkit-font-smoothing:antialiased;overflow-x:hidden}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
img,svg{display:block}
ul,ol{list-style:none}
.mono{font-family:var(--mono)}
.wrap{max-width:1280px;margin:0 auto;padding:0 40px}
.narrow{max-width:900px}
main,section,footer{position:relative;z-index:1}
.section{padding:var(--section) 0}
::selection{background:var(--accent);color:var(--accent-ink)}
:focus-visible{outline:1.5px solid var(--accent);outline-offset:3px}
.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
/* ---------- Page transitions (cross-document View Transitions) ---------- */@view-transition{navigation:auto}
.nav{view-transition-name:site-nav}
::view-transition-old(root){animation:vt-out .35s var(--ease) both}
::view-transition-new(root){animation:vt-in .7s var(--ease) both}
@keyframes vt-out{to{opacity:0;transform:translateY(8px)}
}
@keyframes vt-in{from{opacity:0;transform:translateY(-14px);filter:blur(6px)}
}
/* ---------- Scroll progress ---------- */.progress{position:fixed;top:0;left:0;right:0;height:2px;z-index:51;background:linear-gradient(90deg,rgba(34,211,238,.2),var(--accent));transform-origin:left;transform:scaleX(0);pointer-events:none}
@supports (animation-timeline:scroll()){  .progress{animation:prog linear both;animation-timeline:scroll(root)}
  @keyframes prog{to{transform:scaleX(1)}
}
}
@supports not (animation-timeline:scroll()){.progress{display:none}
}
/* ---------- Ambient ---------- */#snow{position:fixed;inset:0;width:100%;height:100%;z-index:0;pointer-events:none}
.hexgrid{position:absolute;inset:0;pointer-events:none;opacity:.55;  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='56' height='97' viewBox='0 0 56 97'%3E%3Cpath d='M28 0 56 16.2V48.5L28 64.7 0 48.5V16.2Z M28 64.7V97' fill='none' stroke='%23A0CDEB' stroke-opacity='.07' stroke-width='1'/%3E%3C/svg%3E");  background-size:56px 97px;  -webkit-mask-image:radial-gradient(ellipse 70% 60% at 70% 30%,#000 10%,transparent 75%);          mask-image:radial-gradient(ellipse 70% 60% at 70% 30%,#000 10%,transparent 75%)}
.aurora{position:absolute;pointer-events:none;inset:-20% -10% auto auto;width:900px;height:760px;filter:blur(20px)}
.aurora span{position:absolute;border-radius:50%}
.aurora .a1{width:620px;height:420px;right:80px;top:40px;background:radial-gradient(closest-side,rgba(34,211,238,.20),transparent);animation:drift 22s ease-in-out infinite alternate}
.aurora .a2{width:520px;height:520px;right:-60px;top:-60px;background:radial-gradient(closest-side,rgba(56,130,220,.18),transparent);animation:drift 28s ease-in-out infinite alternate-reverse}
.aurora .a3{width:300px;height:200px;right:320px;top:260px;background:radial-gradient(closest-side,rgba(110,240,220,.10),transparent);animation:drift 18s ease-in-out infinite alternate}
@keyframes drift{to{transform:translate(-60px,40px) rotate(8deg)}
}
/* ---------- Chamfer & frame ---------- */.chamfer{clip-path:polygon(0 0,calc(100% - var(--c,var(--cut))) 0,100% var(--c,var(--cut)),100% 100%,var(--c,var(--cut)) 100%,0 calc(100% - var(--c,var(--cut))))}
.frame{position:relative;padding:1px;background:linear-gradient(160deg,var(--line-2),var(--line) 40%,rgba(160,205,235,.08));transition:background .6s var(--ease)}
.frame>.inner{position:relative;height:100%;background:var(--surface);clip-path:inherit;overflow:hidden}
.frame>.inner::before{content:"";position:absolute;inset:0;pointer-events:none;opacity:0;  background:radial-gradient(420px circle at var(--mx,50%) var(--my,0%),rgba(34,211,238,.10),transparent 60%);transition:opacity .5s var(--ease)}
.frame:hover,.frame:focus-within{background:linear-gradient(160deg,rgba(34,211,238,.55),var(--line-2) 45%,rgba(160,205,235,.1))}
.frame:hover>.inner::before{opacity:1}
.hex-icon{width:56px;height:62px;position:relative;display:grid;place-items:center;color:var(--accent);font-size:24px;flex:none}
.hex-icon svg{position:absolute;inset:0;width:100%;height:100%}
.hex-icon path{fill:var(--accent-soft);stroke:rgba(34,211,238,.45);stroke-width:1}
.hex-icon i{position:relative}
/* ---------- Buttons ---------- */.btn{--c:var(--cut-sm);display:inline-flex;align-items:center;gap:10px;white-space:nowrap;height:52px;padding:0 28px;font-size:15px;font-weight:500;letter-spacing:.02em;transition:transform .25s var(--ease),background .3s var(--ease),color .3s}
.btn:active{transform:translateY(1px) scale(.985)}
.btn i{transition:transform .35s var(--ease)}
.btn-primary{background:var(--accent);color:var(--accent-ink);font-weight:700}
.btn-primary:hover{background:#5EE3F5}
.btn-primary:hover i{transform:translateX(3px)}
.btn-ghost{position:relative;isolation:isolate;color:var(--ink);background:linear-gradient(var(--line-2),var(--line-2))}
.btn-ghost::before{content:"";position:absolute;inset:1px;background:var(--bg);clip-path:inherit;z-index:-1;transition:background .3s}
.btn-ghost:hover::before{background:var(--bg-2)}
.btn-ghost:hover{background:linear-gradient(rgba(34,211,238,.5),rgba(34,211,238,.5))}
.btn-ghost:hover i{transform:translateX(3px)}
.btn-sm{height:40px;padding:0 18px;font-size:14px}
.link-arrow{display:inline-flex;align-items:center;gap:8px;color:var(--accent);font-size:15px;font-weight:500}
.link-arrow i{transition:transform .35s var(--ease)}
.link-arrow:hover i{transform:translateX(4px)}
/* ---------- Nav ---------- */.nav{position:fixed;top:0;left:0;right:0;z-index:50;height:72px;border-bottom:1px solid transparent;transition:background .5s var(--ease),border-color .5s}
.nav.scrolled{background:rgba(10,18,32,.74);border-bottom-color:var(--line);-webkit-backdrop-filter:blur(18px) saturate(140%);backdrop-filter:blur(18px) saturate(140%)}
@media (prefers-reduced-transparency:reduce){.nav.scrolled{background:#0A1220;backdrop-filter:none}
}
.nav .wrap{height:100%;display:flex;align-items:center;justify-content:space-between;gap:32px}
.brand{display:flex;align-items:center;gap:12px;font-weight:700;font-size:17px;letter-spacing:.04em}
.brand svg{transition:transform .8s var(--ease)}
.brand:hover svg{transform:rotate(60deg)}
.brand small{display:block;font-family:var(--mono);font-size:10px;font-weight:400;color:var(--ink-3);letter-spacing:.12em;line-height:1}
.brand-text{line-height:1.25}
.nav-links{display:flex;gap:34px;font-size:14px;color:var(--ink-2)}
.nav-links a{position:relative;padding:6px 0;transition:color .3s}
.nav-links a::after{content:"";position:absolute;left:0;right:0;bottom:0;height:1px;background:var(--accent);transform:scaleX(0);transform-origin:left;transition:transform .5s var(--ease)}
.nav-links a:hover,.nav-links a[aria-current="page"]{color:var(--ink)}
.nav-links a[aria-current="page"]::after{transform:scaleX(1)}
.nav-right{display:flex;align-items:center;gap:12px}
.menu-btn{display:none;width:40px;height:40px;align-items:center;justify-content:center;font-size:22px}
.mobile-menu{display:none;position:fixed;inset:72px 0 auto 0;z-index:49;background:rgba(10,18,32,.97);border-bottom:1px solid var(--line);padding:12px 24px 28px}
.mobile-menu a{display:flex;justify-content:space-between;padding:16px 0;border-bottom:1px solid var(--line);font-size:16px}
.mobile-menu a[aria-current="page"]{color:var(--accent)}
.mobile-menu.open{display:block}
/* ---------- Type ---------- */.eyebrow{font-family:var(--mono);font-size:12px;letter-spacing:.2em;text-transform:uppercase;color:var(--accent);margin-bottom:24px;display:block}
.h2{font-size:clamp(1.9rem,3.2vw,2.9rem);font-weight:700;line-height:1.3;letter-spacing:-.005em}
.h3{font-size:22px;font-weight:700;line-height:1.4}
.lead{margin-top:24px;color:var(--ink-2);font-size:17px;max-width:62ch}
.muted{color:var(--ink-2)}
em.hl{font-style:normal;color:var(--accent)}
/* split characters (hero) */.ch{display:inline-block;white-space:pre}
@media (prefers-reduced-motion:no-preference){  .split-ready .ch{opacity:0;transform:translateY(-.45em) rotate(-4deg);filter:blur(6px);animation:chfall 1.3s var(--ease) forwards;animation-delay:calc(var(--i) * 38ms + .15s)}
  @keyframes chfall{to{opacity:1;transform:none;filter:none}
}
}
/* ---------- Home hero ---------- */.hero{min-height:100dvh;display:flex;align-items:center;padding:96px 0 48px;overflow:hidden}
.hero-grid{display:grid;grid-template-columns:1fr 1fr;gap:32px;align-items:center;width:100%;position:relative}
.hero-copy{position:relative;z-index:2}
.hero h1{font-size:clamp(2.2rem,3.4vw,3.15rem);font-weight:900;line-height:1.2;letter-spacing:-.015em}
.hero-spot{position:absolute;inset:0;pointer-events:none;background:radial-gradient(520px circle at var(--hx,70%) var(--hy,40%),rgba(34,211,238,.07),transparent 60%);transition:background .2s}
/* stage: crystal canvas + floating layers */.stage{position:relative;height:min(680px,calc(100dvh - 150px));min-height:520px}
#crystal{position:absolute;inset:0;width:100%;height:100%}
.stage-orbit{position:absolute;left:60%;top:40%;width:84%;aspect-ratio:1;transform:translate(-50%,-50%);pointer-events:none}
.stage-orbit svg{width:100%;height:100%;overflow:visible}
.stage-orbit path{fill:none;stroke-width:1;transform-origin:center}
.stage-orbit .so1{stroke:var(--line);stroke-dasharray:2 9;animation:spin 140s linear infinite}
.stage-orbit .so2{stroke:rgba(34,211,238,.16);animation:spin 90s linear infinite reverse}
.float{position:absolute;will-change:transform;transition:transform .9s var(--ease)}
.bob{animation:bob 7s ease-in-out infinite}
@keyframes bob{50%{transform:translateY(-8px)}
}
.chip-card{--c:10px;padding:14px 18px 15px;background:rgba(15,26,46,.78);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);box-shadow:inset 0 0 0 1px var(--line-2)}
.chip-card .k{display:flex;align-items:center;gap:6px;font-family:var(--mono);font-size:11px;letter-spacing:.1em;color:var(--accent)}
.chip-card .k.ok{color:#5BD08A}
.chip-card .k i{font-size:14px}
.chip-card p{margin-top:6px;font-size:14px;color:var(--ink);line-height:1.5}
.chip-card p.mono{font-size:12.5px;color:var(--ink-2)}
.chip-prompt{left:0;top:4%;max-width:240px}
.chip-status{right:0;bottom:8%}
.term-float{left:0;bottom:0;width:min(400px,63%)}
.term-float .term pre{height:214px;font-size:12px;line-height:1.7;padding:14px 18px}
@media (prefers-reduced-transparency:reduce){.chip-card{background:var(--surface)}
}
/* grain texture */body::after{content:"";position:fixed;inset:0;z-index:48;pointer-events:none;opacity:.07;mix-blend-mode:overlay;  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E")}
/* course card mini visual */.mini{margin-top:24px;padding:14px 16px;background:#0B1422;border:1px solid var(--line);font-family:var(--mono);font-size:12.5px;line-height:1.9;color:#C9D6E5;overflow:hidden}
.mini-p{color:var(--ink);font-family:var(--sans);font-size:13.5px;padding-bottom:6px;margin-bottom:6px;border-bottom:1px dashed var(--line)}
.mini-c{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.mini .t-p,.mini .t-ok,.mini .t-d,.mini .t-k{display:inline-block;min-width:3.2em}
.mini-p .t-p{min-width:0}
.reveal.in[data-tilt]{transition:transform .5s var(--ease),background .6s var(--ease)}
.hero h1 em{font-style:normal;color:var(--accent)}
.hero-sub{margin-top:28px;font-size:18px;color:var(--ink-2);display:flex;flex-wrap:wrap;align-items:center;gap:6px 14px}
.hero-sub .rule{display:inline-block;width:36px;height:1px;background:var(--ink-3)}
.hero-cta{margin-top:44px;display:flex;flex-wrap:wrap;gap:16px}
/* ---------- Terminal ---------- */.term{--c:14px;filter:drop-shadow(0 30px 60px rgba(3,10,22,.55))}
.term .inner{background:linear-gradient(180deg,#0E1828,#0B1422)}
.term-bar{display:flex;align-items:center;gap:8px;height:40px;padding:0 16px;border-bottom:1px solid var(--line)}
.term-bar i{width:11px;height:11px;border-radius:50%;background:#3A4658;flex:none}
.term-bar i:nth-child(1){background:#E5675C}
.term-bar i:nth-child(2){background:#E4B54A}
.term-bar i:nth-child(3){background:#5BC46B}
.term-bar span{flex:1;text-align:center;font-family:var(--mono);font-size:12px;color:var(--ink-3);margin-right:44px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.term pre{font-family:var(--mono);font-size:13px;line-height:1.72;color:#C9D6E5;padding:20px 22px 24px;height:452px;overflow:hidden;white-space:pre-wrap;word-break:break-word}
.t-p{color:var(--accent)}
.t-k{color:#8FB8FF}
.t-s{color:#9BE3C4}
.t-c{color:#5F7189}
.t-f{color:#E6EEF7}
.t-d{color:#F2C47A}
.t-ok{color:#5BD08A}
.t-m{color:var(--ink-3)}
.caret{display:inline-block;width:8px;height:15px;background:var(--accent);vertical-align:-2px;margin-left:1px;animation:blink 1.05s steps(1) infinite}
@keyframes blink{50%{opacity:0}
}
/* ---------- Sub-page hero ---------- */.page-hero{padding:176px 0 96px;overflow:hidden}
.page-hero .wrap{position:relative}
.page-hero h1{font-size:clamp(2.6rem,5.4vw,4.8rem);font-weight:900;line-height:1.14;letter-spacing:-.015em;max-width:14ch}
.page-hero .lead{font-size:18px;max-width:52ch}
.page-meta{margin-top:48px;display:flex;flex-wrap:wrap;gap:16px 56px}
.page-meta div{border-top:1px solid var(--line-2);padding-top:14px;min-width:120px}
.page-meta dt{font-family:var(--mono);font-size:11px;letter-spacing:.14em;color:var(--ink-3)}
.page-meta dd{margin-top:4px;font-size:17px}
.hex-orbit{position:absolute;right:-40px;top:50%;width:520px;height:520px;transform:translateY(-50%);pointer-events:none;opacity:.9}
.hex-orbit svg{width:100%;height:100%;overflow:visible}
.hex-orbit path{fill:none;stroke:var(--line-2);stroke-width:1}
.hex-orbit .o1{animation:spin 80s linear infinite;transform-origin:center}
.hex-orbit .o2{animation:spin 120s linear infinite reverse;transform-origin:center;stroke:rgba(34,211,238,.35)}
.hex-orbit .o3{animation:spin 60s linear infinite;transform-origin:center;stroke-dasharray:4 10}
.hex-orbit .glyph{fill:none;stroke:var(--accent);stroke-width:1.4;stroke-linecap:round}
@keyframes spin{to{transform:rotate(360deg)}
}
/* ---------- Page-hero stage (sub-pages) ---------- */.page-hero .phero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center}
.phero-copy{position:relative;z-index:2}
.pstage{position:relative;height:min(460px,56vh);min-height:380px}
.pstage>.hex-orbit{left:50%;right:auto;width:440px;height:440px;transform:translate(-50%,-50%);opacity:.55}
.pstage .float{z-index:2}
/* mini console (reuses .term visuals without fixed height) */.console .inner{background:linear-gradient(180deg,#0E1828,#0B1422)}
.clines{font-family:var(--mono);font-size:12.5px;line-height:1.9;color:#C9D6E5;padding:16px 20px 20px}
.clines.sm{font-size:12px;line-height:1.8;padding:10px 0 2px}
.clines p{margin:0}
/* sequenced reveal: .si items appear one by one; .soli items highlight solo */.si{opacity:0;transform:translateY(8px);transition:opacity .55s var(--ease),transform .55s var(--ease)}
.si.on{opacity:1;transform:none}
.soli{transition:color .4s,border-color .4s,box-shadow .4s}
.soli.on{color:var(--accent);border-color:rgba(34,211,238,.6);box-shadow:0 0 18px rgba(34,211,238,.14)}
@media (prefers-reduced-motion:reduce){.si{opacity:1;transform:none}
}
/* vibecoding: prompt -> code pipeline */.p-prompt{left:0;top:0;max-width:250px}
.p-vc-main{left:6%;bottom:0;width:min(400px,76%)}
.p-vc-chip{right:0;top:40%}
.p-link{position:absolute;left:96px;top:80px;width:2px;height:44%;background:repeating-linear-gradient(180deg,rgba(34,211,238,.45) 0 5px,transparent 5px 11px);animation:linkflow 1.1s linear infinite}
@keyframes linkflow{to{background-position:0 11px}
}
/* agent: LLM core + orbiting tool chips */.a-ring{left:52%;top:38%;width:300px;height:300px;margin:-150px 0 0 -150px}
.a-orbit-svg{position:absolute;inset:0;animation:spin 50s linear infinite}
.a-orbit-svg circle{fill:none;stroke:var(--line-2);stroke-dasharray:3 8}
.a-core{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);text-align:center}
.a-core svg{width:104px;height:116px}
.a-core path{fill:rgba(15,26,46,.85);stroke:rgba(34,211,238,.5);stroke-width:1.2}
.a-core div{position:absolute;inset:0;display:grid;place-content:center;font-family:var(--mono);font-weight:600;font-size:15px;color:var(--ink)}
.a-core small{display:block;margin-top:3px;font-size:10px;font-weight:400;letter-spacing:.14em;color:var(--ink-3)}
.a-chip{position:absolute;--c:7px;font-family:var(--mono);font-size:11px;padding:7px 12px;background:rgba(15,26,46,.88);border:1px solid var(--line-2);color:var(--ink-2);white-space:nowrap}
.a-log{left:-2%;bottom:0;width:min(250px,58%)}
/* handbook: prompt template with cycling slot */.h-tpl{left:8%;top:10%;width:min(400px,86%)}
.tpl{margin-top:14px;font-size:14px;line-height:2.1;color:var(--ink-2)}
.tpl b{color:var(--accent);font-weight:500;margin-right:8px;font-family:var(--mono);font-size:12px;letter-spacing:.08em}
.slot{display:inline-block;min-width:10ch;color:var(--ink);border-bottom:1px dashed rgba(34,211,238,.5);padding-bottom:1px}
.h-chip1{right:0;top:0}
.h-chip2{left:0;bottom:4%}
/* tools: env-check console */.t-main{left:8%;top:12%;width:min(400px,80%)}
.t-chip{right:0;bottom:6%}
/* about: year track */.yr-track{left:2%;right:2%;top:40%;display:flex;justify-content:space-between}
.yr-line{position:absolute;left:32px;right:32px;top:26px;height:1px;background:var(--line-2)}
.yr{position:relative;width:84px;text-align:center;flex:none}
.yr svg{width:50px;height:56px;display:block;margin:0 auto}
.yr path{fill:var(--surface);stroke:var(--line-2);stroke-width:1.2;transition:stroke .5s,fill .5s}
.yr span{position:absolute;left:50%;top:27px;transform:translate(-50%,-50%);font-family:var(--mono);font-size:11px;color:var(--ink-2)}
.yr b{display:block;margin-top:8px;font-size:13px;color:var(--ink)}
.yr small{display:block;font-size:11px;color:var(--ink-3);margin-top:2px}
.yr.on path{stroke:var(--accent);fill:rgba(34,211,238,.07)}
.yr.on span{color:var(--accent)}
.ab-chip{left:8%;bottom:2%}
/* workflow: round meter */.rmeter{left:6%;top:36%;display:flex;gap:12px}
.rm{width:62px;text-align:center}
.rm svg{width:56px;height:62px;display:block;margin:0 auto}
.rm path{fill:none;stroke:var(--line-2);stroke-width:1.2;transition:stroke .5s,fill .5s}
.rm span{display:block;margin-top:8px;font-family:var(--mono);font-size:11px;letter-spacing:.12em;color:var(--ink-3);transition:color .5s}
.rm.on path{stroke:var(--accent);fill:rgba(34,211,238,.08)}
.rm.on span{color:var(--accent)}
.wf-chip{left:6%;bottom:4%}
/* ---------- Facts band ---------- */.facts{padding:24px 0 var(--section)}
.facts-row{display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.fact{padding:44px 32px 40px;position:relative}
.fact+.fact::before{content:"";position:absolute;left:0;top:32px;bottom:32px;width:1px;background:var(--line)}
.fact-num{font-family:var(--mono);font-weight:500;font-size:clamp(2.4rem,4vw,3.6rem);line-height:1;letter-spacing:-.03em;display:flex;align-items:baseline;gap:6px}
.fact-num .unit{font-family:var(--sans);font-size:.34em;color:var(--ink-2);font-weight:400;letter-spacing:0}
.fact p{margin-top:14px;color:var(--ink-2);font-size:15px}
/* ---------- Manifesto (scroll-lit characters) ---------- */.manifesto{padding:calc(var(--section) * .6) 0 var(--section)}
.manifesto p{font-size:clamp(1.7rem,3.6vw,3.2rem);font-weight:700;line-height:1.55;letter-spacing:-.005em;max-width:24ch}
.manifesto .sign{margin-top:40px;font-size:15px;color:var(--ink-3);font-family:var(--mono)}
@supports (animation-timeline:view()){  @media (prefers-reduced-motion:no-preference){    .manifesto .w{opacity:.16;animation:lit linear both;animation-timeline:view();animation-range:cover 25% cover 45%}
    .manifesto .w.a{color:var(--accent)}
    @keyframes lit{to{opacity:1}
}
  }
}
.manifesto .w.a{color:var(--accent)}
/* manifesto: short statement left, judgment card right */.manifesto-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:64px;align-items:center}
.manifesto .m-sub{margin-top:26px;font-size:17px;font-weight:400;line-height:1.8;letter-spacing:0;color:var(--ink-2);max-width:36ch}
.judg .inner{padding:30px 32px}
.j-cap{display:flex;align-items:baseline;gap:16px;flex-wrap:wrap}
.jtag{font-family:var(--mono);font-size:11px;letter-spacing:.14em;color:var(--ink-3)}
.jdim{font-size:13px;color:var(--ink-2);letter-spacing:.06em}
.j-div{margin:22px 0 6px;display:flex;align-items:center;gap:14px;font-size:12.5px;color:var(--ink-3)}
.j-div::before,.j-div::after{content:"";flex:1;height:1px;background:var(--line)}
.j-rows{display:grid;gap:8px}
.jr{position:relative;display:flex;align-items:center;gap:16px;padding:14px 16px;border:1px solid transparent}
.jr svg{width:42px;height:47px;flex:none}
.jr path{fill:var(--surface);stroke:var(--line-2);stroke-width:1.2;transition:stroke .4s,fill .4s}
.jr i{position:absolute;left:37px;top:50%;transform:translate(-50%,-60%);font-size:15px;color:var(--ink-2);transition:color .4s}
.jr b{display:block;font-size:15px;color:var(--ink);transition:color .4s}
.jr small{display:block;margin-top:3px;font-size:12.5px;color:var(--ink-3);line-height:1.5}
.jr.on{border-color:rgba(34,211,238,.35);background:rgba(34,211,238,.05)}
.jr.on path{stroke:var(--accent);fill:rgba(34,211,238,.08)}
.jr.on i,.jr.on b{color:var(--accent)}
/* ---------- Course entry cards (home) ---------- */.entry-grid{margin-top:72px;display:grid;grid-template-columns:1.15fr 1fr;gap:28px}
.entry .inner{padding:44px 44px 40px;display:flex;flex-direction:column;min-height:440px}
.entry:nth-child(2){margin-top:72px}
.entry-top{display:flex;justify-content:space-between;align-items:flex-start;gap:24px}
.flakes{display:flex;gap:4px;font-size:18px;align-items:center}
.flakes .on{color:var(--accent)}
.flakes .off{color:#2A3A50}
.flakes small{font-family:var(--mono);font-size:11px;color:var(--ink-3);letter-spacing:.12em;margin-right:8px}
.entry h3{margin-top:40px;font-size:30px;font-weight:700}
.entry .en{font-family:var(--mono);font-size:13px;color:var(--ink-3);margin-top:4px}
.entry p{margin-top:18px;color:var(--ink-2);font-size:16px;max-width:42ch}
.entry .chips{margin-top:28px;display:flex;flex-wrap:wrap;gap:8px}
.entry .chips span{font-size:13px;color:var(--ink-2);border:1px solid var(--line);padding:4px 10px}
.entry .foot{margin-top:auto;padding-top:36px;display:flex;justify-content:space-between;align-items:center;border-top:1px solid var(--line);margin-top:auto}
.entry .foot .mono{font-size:13px;color:var(--ink-3)}
.entry .go{width:48px;height:48px;display:grid;place-items:center;color:var(--accent);font-size:20px;transition:transform .5s var(--ease)}
.entry:hover .go{transform:translateX(6px)}
.entry-wrap{margin-top:auto}
/* ---------- Sticky lesson flow (home) ---------- */.flow-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:96px;align-items:start}
.flow-side{position:sticky;top:140px}
.flow-steps{display:grid;gap:20px}
.flow-step .inner{padding:36px 36px 32px;display:grid;grid-template-columns:auto 1fr;gap:28px;align-items:start}
.flow-step .time{font-family:var(--mono);font-size:44px;line-height:1;font-weight:500;letter-spacing:-.03em;min-width:3ch}
.flow-step .time small{display:block;font-size:12px;color:var(--ink-3);letter-spacing:.12em;margin-top:8px;font-weight:400}
.flow-step h3{font-size:20px;font-weight:700}
.flow-step p{margin-top:8px;color:var(--ink-2);font-size:15px}
.flow-step .inner{transition:background .6s var(--ease)}
.flow-step.active{background:linear-gradient(160deg,rgba(34,211,238,.6),var(--line-2) 45%,rgba(160,205,235,.1))}
.flow-step.active .time{color:var(--accent)}
.flow-bar{margin-top:40px;display:flex;gap:8px}
.flow-bar span{height:2px;flex:1;background:var(--line);transition:background .5s}
.flow-bar span.on{background:var(--accent)}
/* ---------- Tips teaser (home) ---------- */.tips{margin-top:64px;display:grid;grid-template-columns:repeat(12,1fr);gap:24px}
.tip{grid-column:span 4}
.tip:nth-child(1){grid-column:span 5}
.tip:nth-child(2){grid-column:span 4;margin-top:56px}
.tip:nth-child(3){grid-column:span 3;margin-top:112px}
.tip .inner{padding:32px 28px 28px}
.tip .k{font-family:var(--mono);font-size:12px;color:var(--accent);letter-spacing:.1em}
.tip h3{margin-top:14px;font-size:20px;font-weight:700;line-height:1.45}
.tip p{margin-top:12px;color:var(--ink-2);font-size:15px}
.tip code{font-family:var(--mono);font-size:13px;color:var(--accent);background:var(--accent-soft);padding:1px 6px}
/* ---------- Marquee (home, once) ---------- */.marquee{overflow:hidden;border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:36px 0;-webkit-mask-image:linear-gradient(90deg,transparent,#000 10%,#000 90%,transparent);mask-image:linear-gradient(90deg,transparent,#000 10%,#000 90%,transparent)}
.marquee-track{display:flex;gap:64px;width:max-content;animation:marq 48s linear infinite}
.marquee:hover .marquee-track{animation-play-state:paused}
.marquee-track span{font-family:var(--mono);font-size:clamp(1.6rem,3vw,2.6rem);font-weight:500;color:transparent;-webkit-text-stroke:1px rgba(160,205,235,.45);white-space:nowrap;display:flex;align-items:center;gap:64px;transition:color .4s}
.marquee-track span:hover{color:var(--ink);-webkit-text-stroke-color:transparent}
.marquee-track span::after{content:"";width:10px;height:11px;background:var(--accent);clip-path:var(--hex);opacity:.7}
@keyframes marq{to{transform:translateX(-50%)}
}
.marquee-cta{margin-top:48px;display:flex;justify-content:space-between;align-items:center;gap:24px;flex-wrap:wrap}
/* ---------- Workflow chain (vibecoding) ---------- */.chain{margin-top:72px;display:grid;grid-template-columns:repeat(5,1fr);gap:24px;position:relative}
.chain::before{content:"";position:absolute;top:36px;left:10%;right:10%;height:1px;background:var(--line-2)}
.chain::after{content:"";position:absolute;top:35px;left:10%;width:12%;height:3px;background:linear-gradient(90deg,transparent,var(--accent),transparent);animation:travel 6s linear infinite}
@keyframes travel{0%{transform:translateX(0);opacity:0}
8%{opacity:1}
92%{opacity:1}
100%{transform:translateX(560%);opacity:0}
}
.chain-item{text-align:center;position:relative}
.chain-node{width:64px;height:72px;margin:0 auto;position:relative;display:grid;place-items:center;font-size:24px;color:var(--ink-2)}
.chain-node svg{position:absolute;inset:0;width:100%;height:100%}
.chain-node path{fill:var(--bg);stroke:var(--line-2);stroke-width:1.2}
.chain-node i{position:relative}
.chain-item h3{margin-top:20px;font-size:18px;font-weight:700}
.chain-item .en{font-family:var(--mono);font-size:11px;color:var(--ink-3);letter-spacing:.12em}
.chain-item p{margin:10px auto 0;color:var(--ink-2);font-size:14px;max-width:20ch}
@media (prefers-reduced-motion:no-preference){  .chain-node path,.chain-node i{animation:nodelit 6s var(--ease) infinite;animation-delay:calc(var(--i) * 1.2s)}
  @keyframes nodelit{0%,22%,100%{stroke:var(--line-2);fill:var(--bg);color:var(--ink-2)}
6%,16%{stroke:var(--accent);fill:rgba(34,211,238,.14);color:var(--accent)}
}
}
/* ---------- Prompt compare ---------- */.compare{margin-top:64px;display:grid;grid-template-columns:1.25fr 1fr;gap:40px;align-items:start}
.compare .codebox .inner{background:#0B1422}
.compare-why{display:grid;gap:4px}
.why{padding:20px 0;border-bottom:1px solid var(--line);display:grid;grid-template-columns:28px 1fr;gap:14px}
.why i{color:var(--accent);font-size:20px;margin-top:2px}
.why b{display:block;font-weight:500;font-size:16px}
.why span{display:block;color:var(--ink-2);font-size:14px;margin-top:4px}
.why.bad i{color:#FF8A8A}
.prompt-pre{font-family:var(--mono);font-size:13.5px;line-height:1.85;color:#C9D6E5;padding:24px 26px;white-space:pre-wrap;min-height:380px}
.prompt-pre .lbl{color:var(--accent)}
.prompt-pre.bad{display:flex;align-items:center;justify-content:center;text-align:center;font-size:22px;color:var(--ink)}
.result-note{padding:14px 26px;border-top:1px solid var(--line);font-size:13px;color:var(--ink-3);display:flex;gap:10px;align-items:center}
.result-note i{font-size:16px}
.result-note.good i{color:#5BD08A}
.result-note.bad i{color:#FF8A8A}
/* ---------- Tabs & chips ---------- */.tabs{--c:10px;display:inline-flex;padding:1px;background:var(--line-2)}
.tabs-inner{display:flex;background:var(--bg);clip-path:inherit;padding:4px;gap:4px;flex-wrap:wrap}
.tab{--c:7px;height:42px;padding:0 20px;font-size:14px;color:var(--ink-2);transition:background .35s var(--ease),color .3s;white-space:nowrap}
.tab:hover{color:var(--ink)}
.tab[aria-selected="true"]{background:var(--accent);color:var(--accent-ink);font-weight:700}
.panel[hidden]{display:none}
.panel.show{animation:fall .7s var(--ease) both}
@keyframes fall{from{opacity:0;transform:translateY(-12px)}
}
.chip{--c:7px;height:40px;padding:0 16px;font-size:14px;color:var(--ink-2);background:linear-gradient(var(--line),var(--line));position:relative;isolation:isolate;display:inline-flex;align-items:center;gap:8px;transition:color .3s,background .3s}
.chip::before{content:"";position:absolute;inset:1px;background:var(--bg);clip-path:inherit;z-index:-1}
.chip .n{font-family:var(--mono);font-size:12px;color:var(--ink-3)}
.chip:hover{color:var(--ink);background:linear-gradient(var(--line-2),var(--line-2))}
.chip[aria-pressed="true"]{color:var(--accent);background:linear-gradient(rgba(34,211,238,.6),rgba(34,211,238,.6))}
.chip[aria-pressed="true"] .n{color:var(--accent)}
/* ---------- Accordion (syllabus + FAQ) ---------- */.acc{border-top:1px solid var(--line)}
.acc-item{border-bottom:1px solid var(--line)}
.acc-q{width:100%;display:flex;align-items:center;gap:24px;padding:28px 4px;text-align:left;font-size:18px;font-weight:500;transition:color .3s}
.acc-q:hover{color:var(--accent)}
.acc-q .wk{font-family:var(--mono);font-size:13px;color:var(--accent);min-width:56px;font-weight:400}
.acc-q .t{flex:1}
.acc-q .out{font-size:13px;font-weight:400;color:var(--ink-3);border:1px solid var(--line);padding:3px 10px;white-space:nowrap}
.acc-q .ic{flex:none;width:28px;height:28px;display:grid;place-items:center;color:var(--ink-3);transition:transform .5s var(--ease),color .3s}
.acc-item.open .acc-q .ic{transform:rotate(45deg);color:var(--accent)}
.acc-a{display:grid;grid-template-rows:0fr;transition:grid-template-rows .6s var(--ease)}
.acc-item.open .acc-a{grid-template-rows:1fr}
.acc-a>div{overflow:hidden}
.acc-a p{padding:0 48px 30px 4px;color:var(--ink-2);font-size:16px;max-width:68ch}
.acc-a a{color:var(--accent)}
.week{display:grid;grid-template-columns:1.3fr 1fr 1fr;gap:40px;padding:4px 4px 36px 84px}
.week h4{font-family:var(--mono);font-size:11px;font-weight:400;letter-spacing:.14em;color:var(--ink-3);margin-bottom:12px}
.week li{position:relative;padding-left:18px;color:var(--ink-2);font-size:15px;line-height:1.7;margin-top:6px}
.week li::before{content:"";position:absolute;left:0;top:.72em;width:7px;height:8px;background:var(--accent);clip-path:var(--hex);opacity:.75}
.week p{color:var(--ink-2);font-size:15px;line-height:1.7}
/* ---------- Agent loop diagram ---------- */.loop-grid{margin-top:72px;display:grid;grid-template-columns:1fr 1fr;gap:80px;align-items:center}
.loop{position:relative;width:min(100%,460px);aspect-ratio:1;margin:0 auto}
.loop svg{position:absolute;inset:0;width:100%;height:100%}
.loop .ring{fill:none;stroke:var(--line-2);stroke-width:1;stroke-dasharray:3 7}
.loop .dot{fill:var(--accent)}
.loop .dot-glow{fill:rgba(34,211,238,.25)}
.loop-node{position:absolute;width:120px;transform:translate(-50%,-50%);text-align:center}
.loop-node .hx{width:60px;height:68px;margin:0 auto;position:relative;display:grid;place-items:center;font-size:22px;color:var(--ink-2)}
.loop-node .hx svg{position:absolute;inset:0}
.loop-node .hx path{fill:var(--bg);stroke:var(--line-2);stroke-width:1.2}
.loop-node .hx i{position:relative}
.loop-node b{display:block;margin-top:8px;font-size:15px;font-weight:500}
.loop-node small{display:block;font-family:var(--mono);font-size:10px;color:var(--ink-3);letter-spacing:.12em}
.loop-node.n1{left:50%;top:12%}
.loop-node.n2{left:88%;top:50%}
.loop-node.n3{left:50%;top:88%}
.loop-node.n4{left:12%;top:50%}
.loop-core{position:absolute;left:50%;top:50%;width:132px;height:150px;transform:translate(-50%,-50%);display:grid;place-items:center;text-align:center}
.loop-core svg{position:absolute;inset:0}
.loop-core path{fill:rgba(34,211,238,.08);stroke:rgba(34,211,238,.6);stroke-width:1.2}
.loop-core div{position:relative;font-family:var(--mono);font-size:22px;font-weight:700;color:var(--accent);line-height:1.2}
.loop-core small{display:block;font-family:var(--sans);font-size:12px;color:var(--ink-2);font-weight:400;margin-top:4px}
@media (prefers-reduced-motion:no-preference){  .loop-node .hx path,.loop-node .hx i{animation:looplit 8s var(--ease) infinite;animation-delay:calc(var(--i) * 2s)}
  @keyframes looplit{0%,20%,100%{stroke:var(--line-2);fill:var(--bg);color:var(--ink-2)}
3%,14%{stroke:var(--accent);fill:rgba(34,211,238,.16);color:var(--accent)}
}
}
.loop-list{counter-reset:s}
.loop-list li{counter-increment:s;padding:22px 0;border-bottom:1px solid var(--line);display:grid;grid-template-columns:44px 1fr;gap:12px}
.loop-list li::before{content:counter(s,decimal-leading-zero);font-family:var(--mono);font-size:13px;color:var(--accent);padding-top:3px}
.loop-list b{font-weight:500;font-size:17px}
.loop-list p{color:var(--ink-2);font-size:15px;margin-top:4px}
/* ---------- Honeycomb ---------- */.hc-grid{margin-top:72px;display:grid;grid-template-columns:1.1fr 1fr;gap:64px;align-items:center}
.honeycomb{--hw:150px;--hh:calc(var(--hw) * 1.1547);--g:1.07;position:relative;height:calc(var(--hh) * 2.6);max-width:calc(var(--hw) * 3.4);margin:0 auto;width:100%}
.hc{position:absolute;width:var(--hw);height:var(--hh);left:calc(50% + var(--x) * var(--hw) * var(--g) - var(--hw) / 2);top:calc(50% + var(--y) * var(--hh) * var(--g) - var(--hh) / 2);  clip-path:var(--hex);background:var(--line-2);padding:1px;transition:background .4s var(--ease),transform .5s var(--ease)}
.hc>span{width:100%;height:100%;clip-path:var(--hex);background:var(--surface);display:flex;flex-direction:column;align-items:center;justify-content:center;gap:6px;transition:background .4s}
.hc i{font-size:26px;color:var(--ink-2);transition:color .3s}
.hc b{font-size:15px;font-weight:500}
.hc small{font-family:var(--mono);font-size:10px;color:var(--ink-3);letter-spacing:.1em}
.hc:hover,.hc.active{background:var(--accent)}
.hc.active>span{background:#0F2236}
.hc.active i,.hc:hover i{color:var(--accent)}
.hc.core{background:rgba(34,211,238,.55)}
.hc.core>span{background:rgba(34,211,238,.1)}
.hc.core i{color:var(--accent)}
.hc-detail .inner{padding:40px 40px 36px;min-height:320px}
.hc-detail .k{font-family:var(--mono);font-size:12px;color:var(--accent);letter-spacing:.14em}
.hc-detail h3{margin-top:12px;font-size:26px;font-weight:700}
.hc-detail p{margin-top:16px;color:var(--ink-2);font-size:16px}
.hc-detail .ex{margin-top:24px;padding:16px 18px;background:var(--bg);border-left:1px solid var(--accent);font-size:14px;color:var(--ink-2)}
.hc-detail .ex b{color:var(--ink);font-weight:500}
.hc-detail .swap{animation:fall .6s var(--ease)}
/* ---------- Code block ---------- */.codebox{--c:14px}
.codebox .inner{background:#0B1422}
.code-head{display:flex;align-items:center;justify-content:space-between;gap:12px;height:44px;padding:0 10px 0 18px;border-bottom:1px solid var(--line)}
.code-head .name{font-family:var(--mono);font-size:12px;color:var(--ink-3);display:flex;align-items:center;gap:8px}
.code-head .name i{color:var(--accent);font-size:15px}
.copy-btn{display:inline-flex;align-items:center;gap:6px;height:30px;padding:0 10px;font-size:12px;color:var(--ink-3);transition:color .3s}
.copy-btn:hover{color:var(--ink)}
.copy-btn.ok{color:#5BD08A}
.code{font-family:var(--mono);font-size:13px;line-height:1.75;color:#C9D6E5;padding:18px 0;overflow-x:auto;counter-reset:ln;tab-size:4}
.code .line{display:block;padding:0 20px 0 0;white-space:pre;transition:opacity .4s var(--ease),background .4s}
.code .line::before{counter-increment:ln;content:counter(ln);display:inline-block;width:44px;padding-right:16px;text-align:right;color:#3B4B62;user-select:none}
.code.dimmed .line{opacity:.32}
.code.dimmed .line.hl{opacity:1;background:rgba(34,211,238,.07);box-shadow:inset 2px 0 0 var(--accent)}
.code .line.hl::before{color:var(--accent)}
.tk-k{color:#8FB8FF}
.tk-s{color:#9BE3C4}
.tk-c{color:#5F7189;font-style:italic}
.tk-n{color:#F2C47A}
.tk-f{color:#E6EEF7}
.code-out{border-top:1px solid var(--line);padding:14px 20px;font-family:var(--mono);font-size:13px;color:var(--ink-2);display:flex;gap:10px}
.code-out b{color:#5BD08A;font-weight:400}
.annot-grid{margin-top:64px;display:grid;grid-template-columns:1.3fr 1fr;gap:40px;align-items:start}
.annots{display:grid;gap:8px;position:sticky;top:110px}
.annot{--c:10px;text-align:left;padding:18px 20px;background:transparent;border:1px solid var(--line);display:grid;grid-template-columns:auto 1fr;gap:16px;transition:border-color .3s,background .3s}
.annot .ln{font-family:var(--mono);font-size:11px;color:var(--ink-3);padding-top:4px;min-width:44px}
.annot b{display:block;font-size:16px;font-weight:500}
.annot span{display:block;margin-top:4px;font-size:14px;color:var(--ink-2);line-height:1.7}
.annot:hover{border-color:var(--line-2)}
.annot[aria-pressed="true"]{border-color:rgba(34,211,238,.6);background:rgba(34,211,238,.05)}
.annot[aria-pressed="true"] .ln{color:var(--accent)}
/* ---------- Cmd row ---------- */.cmd{display:flex;align-items:center;gap:10px;padding:10px 8px 10px 12px;background:var(--bg);border:1px solid var(--line);margin-top:8px;transition:border-color .3s}
.cmd:hover{border-color:var(--line-2)}
.cmd code{flex:1;font-family:var(--mono);font-size:12.5px;color:#C9D6E5;white-space:nowrap;overflow-x:auto;scrollbar-width:none}
.cmd code::-webkit-scrollbar{display:none}
.cmd code::before{content:"$ ";color:var(--accent)}
.cmd .copy-btn{width:32px;padding:0;justify-content:center;font-size:16px}
/* ---------- Handbook docs layout ---------- */.docs{display:grid;grid-template-columns:220px 1fr;gap:80px;align-items:start}
.toc{position:sticky;top:110px}
.toc h4{font-family:var(--mono);font-size:11px;font-weight:400;letter-spacing:.16em;color:var(--ink-3);margin-bottom:16px}
.toc a{display:flex;align-items:center;gap:12px;padding:9px 0;font-size:14px;color:var(--ink-2);transition:color .3s}
.toc a::before{content:"";width:7px;height:8px;clip-path:var(--hex);background:var(--line-2);transition:background .3s,transform .4s var(--ease)}
.toc a:hover{color:var(--ink)}
.toc a.active{color:var(--ink)}
.toc a.active::before{background:var(--accent);transform:scale(1.4)}
.doc-sec{padding-bottom:var(--section)}
.doc-sec+.doc-sec{padding-top:8px}
.doc-sec>.h2{font-size:clamp(1.7rem,2.6vw,2.3rem)}
.principles{margin-top:48px;border-top:1px solid var(--line)}
.principle{display:grid;grid-template-columns:72px 1fr 1fr;gap:32px;padding:36px 0;border-bottom:1px solid var(--line);align-items:start}
.principle .num{width:52px;height:58px;position:relative;display:grid;place-items:center;font-family:var(--mono);font-size:14px;color:var(--accent)}
.principle .num svg{position:absolute;inset:0}
.principle .num path{fill:none;stroke:rgba(34,211,238,.5);stroke-width:1.2}
.principle .num span{position:relative}
.principle h3{font-size:21px;font-weight:700;line-height:1.45}
.principle p{margin-top:10px;color:var(--ink-2);font-size:15px}
.principle .eg{font-size:14px;color:var(--ink-2);background:var(--surface);border:1px solid var(--line);padding:16px 18px;line-height:1.75}
.principle .eg b{display:block;font-family:var(--mono);font-size:11px;font-weight:400;letter-spacing:.14em;color:var(--ink-3);margin-bottom:6px}
.principle .eg code{font-family:var(--mono);font-size:13px;color:var(--accent)}
.tpl-bar{margin-top:40px;display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap}
.tpl-box{margin-top:20px}
.tpl-box pre{font-family:var(--mono);font-size:13.5px;line-height:1.85;color:#C9D6E5;padding:22px 26px;white-space:pre-wrap}
.tpl-box pre .lbl{color:var(--accent)}
.tpl-tip{margin-top:14px;font-size:14px;color:var(--ink-3);display:flex;gap:8px;align-items:baseline}
.tpl-tip i{color:var(--accent)}
.fixes{margin-top:48px;display:grid;grid-template-columns:1fr 1fr;gap:16px}
.fix .inner{padding:28px 28px 24px}
.fix .q{display:flex;gap:12px;align-items:baseline;font-size:17px;font-weight:500;line-height:1.5}
.fix .q i{color:#FF8A8A;font-size:18px;flex:none;transform:translateY(3px)}
.fix .a{margin-top:14px;color:var(--ink-2);font-size:15px;padding-left:30px}
.fix .cmd{margin-left:30px}
.fix.wide{grid-column:1/-1}
.gloss-bar{margin-top:40px;display:flex;align-items:center;gap:16px;flex-wrap:wrap}
.search{--c:8px;position:relative;flex:1;min-width:240px;max-width:420px}
.search input{width:100%;height:48px;padding:0 16px 0 44px;background:var(--bg);color:var(--ink);font:inherit;font-size:15px;border:1px solid var(--line-2);outline:none;border-radius:0;transition:border-color .3s}
.search input::placeholder{color:#7D8EA4}
.search input:focus{border-color:var(--accent)}
.search i{position:absolute;left:16px;top:50%;transform:translateY(-50%);color:var(--ink-3);font-size:18px}
.gloss-count{font-family:var(--mono);font-size:13px;color:var(--ink-3)}
.gloss{margin-top:28px;display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
.term .inner{padding:26px 26px 22px}
.term-h{display:flex;align-items:baseline;gap:12px;flex-wrap:wrap}
.term-h b{font-size:18px;font-weight:700}
.term-h span{font-family:var(--mono);font-size:12px;color:var(--accent)}
.term p{margin-top:10px;color:var(--ink-2);font-size:15px;line-height:1.75}
.term[hidden]{display:none}
.empty{margin-top:28px;padding:56px 24px;text-align:center;border:1px dashed var(--line-2);color:var(--ink-2)}
.empty i{font-size:32px;color:var(--ink-3);display:block;margin:0 auto 12px}
.empty[hidden]{display:none}
/* ---------- Tools ---------- */.filters{margin-top:48px;display:flex;flex-wrap:wrap;gap:10px}
.tools-layout{margin-top:32px;display:grid;grid-template-columns:1fr 360px;gap:32px;align-items:start}
.tool-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.tile{--c:12px;display:block}
.tile .inner{padding:22px 22px 20px;display:flex;flex-direction:column;gap:14px}
.tile-top{display:flex;align-items:center;gap:14px}
.mark{width:40px;height:44px;flex:none;display:grid;place-items:center;font-family:var(--mono);font-size:13px;font-weight:700;color:var(--ink);background:linear-gradient(160deg,#1C2D47,#13203A);clip-path:var(--hex)}
.tile.must .mark{background:linear-gradient(160deg,rgba(34,211,238,.35),rgba(34,211,238,.12));color:var(--accent)}
.tile h3{font-size:16px;font-weight:500;line-height:1.35}
.tile h3 small{display:block;font-family:var(--mono);font-size:11px;color:var(--ink-3);font-weight:400;margin-top:2px}
.tile .go{margin-left:auto;color:var(--ink-3);font-size:18px;transition:transform .4s var(--ease),color .3s}
.tile:hover .go{color:var(--accent);transform:translate(2px,-2px)}
.tile p{font-size:14px;color:var(--ink-2);line-height:1.65}
.tags{display:flex;flex-wrap:wrap;gap:6px;margin-top:auto}
.tag{font-size:12px;line-height:1;padding:6px 8px;border:1px solid var(--line);color:var(--ink-3)}
.tag.must{border-color:rgba(34,211,238,.5);color:var(--accent)}
.tile-in{animation:fall .7s var(--ease) both;animation-delay:calc(var(--i) * 40ms)}
.check{position:sticky;top:96px}
.check .inner{padding:28px 26px 24px}
.check h3{font-size:18px;font-weight:700;display:flex;align-items:center;gap:10px}
.check h3 i{color:var(--accent);font-size:20px}
.check>.inner>p{margin-top:8px;font-size:14px;color:var(--ink-2)}
.cmd-group{margin-top:22px}
.cmd-group h4{font-family:var(--mono);font-size:11px;font-weight:400;letter-spacing:.14em;color:var(--ink-3);margin-bottom:10px}
.check .hint{margin-top:18px;font-size:13px;color:var(--ink-3);line-height:1.7}
.install{margin-top:56px;display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.inst .inner{padding:32px 30px 28px}
.inst-h{display:flex;align-items:center;gap:14px}
.inst-h h3{font-size:20px;font-weight:700}
.inst-h small{display:block;font-family:var(--mono);font-size:11px;color:var(--ink-3);font-weight:400}
.inst ol{margin-top:22px;counter-reset:i}
.inst li{counter-increment:i;position:relative;padding:0 0 16px 34px;color:var(--ink-2);font-size:15px;line-height:1.7}
.inst li::before{content:counter(i);position:absolute;left:0;top:2px;width:22px;height:24px;display:grid;place-items:center;font-family:var(--mono);font-size:11px;color:var(--accent);background:var(--accent-soft);clip-path:var(--hex)}
.inst li b{color:var(--ink);font-weight:500}
.inst li code{font-family:var(--mono);font-size:12.5px;color:var(--accent)}
.warn{margin-top:56px;--c:12px}
.warn .inner{padding:28px 32px;display:grid;grid-template-columns:auto 1fr;gap:20px;align-items:start;background:linear-gradient(90deg,rgba(242,196,122,.06),var(--surface) 40%)}
.warn i{font-size:28px;color:#F2C47A}
.warn h3{font-size:18px;font-weight:700}
.warn p{margin-top:6px;color:var(--ink-2);font-size:15px}
.warn code{font-family:var(--mono);font-size:13px;color:var(--accent)}
/* ---------- About ---------- */.story-grid{display:grid;grid-template-columns:1fr 1fr;gap:96px;align-items:start}
.story-copy{position:sticky;top:120px}
.story-copy .lead p+p{margin-top:18px}
.story-copy .lead strong{color:var(--ink);font-weight:500}
.quote-line{margin-top:40px;padding-left:20px;border-left:1px solid var(--accent);color:var(--ink);font-size:17px}
.timeline{position:relative;padding-left:56px}
.timeline::before{content:"";position:absolute;left:17px;top:12px;bottom:12px;width:1px;background:linear-gradient(var(--line-2),var(--accent) 80%,transparent)}
.tl-item{position:relative;padding-bottom:56px}
.tl-item:last-child{padding-bottom:0}
.tl-node{position:absolute;left:-56px;top:0;width:36px;height:40px}
.tl-node svg{width:36px;height:40px}
.tl-node path{fill:var(--bg);stroke:var(--line-2);stroke-width:1.2;transition:stroke .6s,fill .6s}
.tl-item.in .tl-node path{stroke:var(--accent)}
.tl-item:last-child .tl-node path{fill:var(--accent);stroke:var(--accent)}
.tl-year{font-family:var(--mono);font-size:13px;color:var(--accent);letter-spacing:.06em;line-height:40px}
.tl-item h3{font-size:20px;font-weight:500;margin-top:2px}
.tl-item p{margin-top:8px;color:var(--ink-2);font-size:15px;max-width:44ch}
.values{margin-top:72px;display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid var(--line)}
.value{padding:40px 28px 36px 0;border-right:1px solid var(--line)}
.value+.value{padding-left:28px}
.value:last-child{border-right:0}
.value i{font-size:28px;color:var(--accent)}
.value h3{margin-top:24px;font-size:20px;font-weight:700}
.value p{margin-top:10px;color:var(--ink-2);font-size:15px}
.visit{display:grid;grid-template-columns:1.2fr 1fr;gap:28px}
.visit .inner{padding:44px 44px 40px}
.visit dl{margin-top:28px;display:grid;gap:18px}
.visit dt{font-family:var(--mono);font-size:11px;letter-spacing:.14em;color:var(--ink-3)}
.visit dd{margin-top:2px;font-size:17px}
.visit-art{position:relative;min-height:360px;display:grid;place-items:center;overflow:hidden}
.visit-art .hexgrid{opacity:1;-webkit-mask-image:radial-gradient(circle at 50% 50%,#000 20%,transparent 70%);mask-image:radial-gradient(circle at 50% 50%,#000 20%,transparent 70%)}
.pin{position:relative;text-align:center}
.pin .hex-icon{margin:0 auto;width:72px;height:80px;font-size:30px}
.pin .hex-icon::after{content:"";position:absolute;inset:-14px;clip-path:var(--hex);background:rgba(34,211,238,.18);animation:ping 2.6s var(--ease) infinite;z-index:-1}
@keyframes ping{0%{transform:scale(.7);opacity:1}
100%{transform:scale(1.6);opacity:0}
}
.pin p{margin-top:20px;font-size:15px;color:var(--ink-2)}
/* ---------- Pager & closing ---------- */.pager{padding:0 0 var(--section)}
.pager a{display:block;--c:18px}
.pager .inner{padding:44px 48px;display:flex;justify-content:space-between;align-items:center;gap:24px}
.pager small{font-family:var(--mono);font-size:12px;color:var(--ink-3);letter-spacing:.14em}
.pager b{display:block;margin-top:6px;font-size:clamp(1.5rem,2.6vw,2.2rem);font-weight:700}
.pager .go{width:64px;height:72px;position:relative;display:grid;place-items:center;font-size:24px;color:var(--accent);flex:none;transition:transform .6s var(--ease)}
.pager .go svg{position:absolute;inset:0}
.pager .go path{fill:var(--accent-soft);stroke:rgba(34,211,238,.5)}
.pager .go i{position:relative}
.pager a:hover .go{transform:translateX(8px) rotate(60deg)}
.pager a:hover .go i{transform:rotate(-60deg)}
.final{padding:calc(var(--section) * 1.1) 0;overflow:hidden;text-align:center}
.final-glow{position:absolute;left:50%;top:0;width:1000px;height:520px;transform:translateX(-50%);pointer-events:none;background:radial-gradient(closest-side,rgba(34,211,238,.13),transparent)}
.final h2{position:relative;font-size:clamp(2.2rem,5.2vw,4.6rem);font-weight:900;line-height:1.2;letter-spacing:-.01em}
.final p{position:relative;margin:24px auto 0;color:var(--ink-2);font-size:18px;max-width:40ch}
.final .btns{position:relative;margin-top:48px;display:flex;justify-content:center;gap:16px;flex-wrap:wrap}
/* ---------- Footer ---------- */.footer{border-top:1px solid var(--line);padding:64px 0 40px}
.foot-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:48px}
.foot-grid h4{font-family:var(--mono);font-size:11px;letter-spacing:.16em;color:var(--ink-3);font-weight:400;margin-bottom:16px}
.foot-grid li{color:var(--ink-2);font-size:14px;line-height:2.1}
.foot-grid li a:hover{color:var(--accent)}
.foot-grid li .mono{font-size:13px}
.foot-brand p{margin-top:16px;color:var(--ink-3);font-size:14px;max-width:30ch}
.foot-bottom{margin-top:56px;display:flex;justify-content:space-between;align-items:center;gap:24px;flex-wrap:wrap;font-size:13px;color:var(--ink-3)}
.badge{--c:6px;display:inline-flex;padding:1px;background:linear-gradient(90deg,rgba(34,211,238,.55),var(--line-2))}
.badge>span{display:inline-flex;align-items:center;gap:10px;padding:9px 16px;background:var(--bg-2);clip-path:inherit;color:var(--ink-2);font-size:13px}
.badge i{color:var(--accent);font-size:15px}
/* ---------- Toast ---------- */.toast{--c:8px;position:fixed;left:50%;bottom:32px;z-index:60;transform:translate(-50%,16px);opacity:0;pointer-events:none;background:var(--accent);color:var(--accent-ink);font-size:14px;font-weight:500;padding:10px 18px;transition:opacity .4s var(--ease),transform .5s var(--ease)}
.toast.show{opacity:1;transform:translate(-50%,0)}
/* ---------- Workflow case pages ---------- */.seg{--c:10px;display:inline-flex;padding:1px;background:var(--line-2);margin-top:40px}
.seg-inner{display:flex;background:var(--bg);clip-path:inherit;padding:4px;gap:4px}
.seg a{--c:7px;height:44px;padding:0 20px;display:inline-flex;align-items:center;gap:8px;font-size:14px;color:var(--ink-2);transition:background .35s var(--ease),color .3s;white-space:nowrap}
.seg a:hover{color:var(--ink)}
.seg a[aria-current="page"]{background:var(--accent);color:var(--accent-ink);font-weight:700}
.rounds{position:relative}
.round{position:relative;padding:0 0 104px 92px}
.round::before{content:"";position:absolute;left:26px;top:66px;bottom:8px;width:1px;background:linear-gradient(rgba(34,211,238,.5),var(--line) 30%,var(--line))}
.round:last-child{padding-bottom:0}
.round:last-child::before{display:none}
.round-node{position:absolute;left:0;top:0;width:52px;height:58px;display:grid;place-items:center;font-family:var(--mono);font-size:13px;font-weight:500;color:var(--accent)}
.round-node svg{position:absolute;inset:0}
.round-node path{fill:var(--bg);stroke:rgba(34,211,238,.55);stroke-width:1.2;transition:fill .6s}
.round-node span{position:relative}
.round.in .round-node path{fill:rgba(34,211,238,.12)}
.round.done .round-node path{fill:var(--accent);stroke:var(--accent)}
.round.done .round-node{color:var(--accent-ink)}
.round-head{display:flex;flex-wrap:wrap;align-items:center;gap:10px 14px;min-height:58px}
.phase{font-size:12px;line-height:1;padding:7px 10px;border:1px solid rgba(34,211,238,.5);color:var(--accent);white-space:nowrap}
.who{font-family:var(--mono);font-size:12px;color:var(--ink-3)}
.round h3{width:100%;font-size:clamp(1.4rem,2.2vw,1.9rem);font-weight:700;line-height:1.35;margin-top:2px}
.round .intent{margin-top:12px;color:var(--ink-2);font-size:16px;max-width:64ch}
.round-body{margin-top:28px;display:grid;gap:20px}
.prompt-card .code-head .name b{color:var(--ink);font-weight:500}
.collapsible{position:relative;max-height:330px;overflow:hidden;transition:max-height .8s var(--ease)}
.collapsible::after{content:"";position:absolute;left:0;right:0;bottom:0;height:96px;background:linear-gradient(transparent,#0B1422);pointer-events:none;transition:opacity .4s}
.collapsible.expanded{max-height:2400px}
.collapsible.expanded::after{opacity:0}
.collapsible.short{max-height:none}
.collapsible.short::after{display:none}
.expand-btn{display:flex;align-items:center;justify-content:center;gap:8px;width:100%;height:44px;border-top:1px solid var(--line);font-size:13px;color:var(--ink-2);transition:color .3s,background .3s}
.expand-btn:hover{color:var(--accent);background:rgba(34,211,238,.04)}
.expand-btn i{transition:transform .5s var(--ease)}
.expand-btn[aria-expanded="true"] i{transform:rotate(180deg)}
.out-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.out-card .inner{padding:24px 26px}
.out-card h4,.review h4{font-family:var(--mono);font-size:11px;font-weight:400;letter-spacing:.14em;color:var(--ink-3);margin-bottom:14px;display:flex;align-items:center;gap:8px}
.out-card h4 i,.review h4 i{font-size:15px;color:var(--accent)}
.out-list li{position:relative;padding-left:24px;color:var(--ink-2);font-size:15px;line-height:1.7;margin-top:8px}
.out-list li i{position:absolute;left:0;top:5px;color:var(--accent);font-size:15px}
.diff{font-family:var(--mono);font-size:12.5px;line-height:1.9}
.diff div{padding:0 10px;white-space:pre-wrap;word-break:break-word}
.diff .add{color:#7FE0A8;background:rgba(91,208,138,.07)}
.diff .del{color:#FF9C9C;background:rgba(255,138,138,.06);text-decoration:line-through;text-decoration-color:rgba(255,156,156,.5)}
.diff .ctx{color:var(--ink-3)}
.review{--c:12px}
.review .inner{padding:24px 28px;display:grid;grid-template-columns:1fr 1fr;gap:28px;background:linear-gradient(100deg,rgba(242,196,122,.05),var(--surface) 45%)}
.review h4 i.warn-i{color:#F2C47A}
.review p{color:var(--ink-2);font-size:15px;line-height:1.75}
.review blockquote{color:var(--ink);font-size:16px;line-height:1.75}
.lesson{color:var(--ink)!important}
.score{display:flex;align-items:baseline;gap:6px;font-family:var(--mono)}
.score b{font-size:48px;font-weight:500;line-height:1;letter-spacing:-.03em}
.score span{font-size:18px;color:var(--ink-3)}
.score.good b{color:var(--accent)}
.fail-list li{display:grid;grid-template-columns:auto 1fr auto;gap:12px;align-items:baseline;padding:10px 0;border-bottom:1px solid var(--line);font-size:14px;color:var(--ink-2)}
.fail-list li:last-child{border-bottom:0}
.fail-list li i{color:#FF8A8A}
.fail-list li .n{font-family:var(--mono);color:var(--ink)}
.sysprompt .inner{background:#0B1422}
.sysprompt pre{font-family:var(--mono);font-size:13px;line-height:1.85;color:#C9D6E5;padding:20px 24px;white-space:pre-wrap}
.sysprompt pre .h{color:var(--accent)}
.note{font-size:13px;color:var(--ink-3);display:flex;gap:8px;align-items:baseline;margin-top:6px}
.note i{color:var(--ink-3)}
/* delivery */.deliver-grid{margin-top:56px;display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.dv{--c:12px;display:block}
.dv .inner{padding:26px 26px 22px;display:flex;flex-direction:column;gap:12px;min-height:180px}
.dv .top{display:flex;justify-content:space-between;align-items:flex-start}
.dv .hex-icon{width:44px;height:50px;font-size:19px}
.dv .go{color:var(--ink-3);font-size:18px;transition:transform .4s var(--ease),color .3s}
.dv:hover .go{color:var(--accent);transform:translate(2px,-2px)}
.dv h3{font-size:18px;font-weight:700}
.dv p{font-size:14px;color:var(--ink-2)}
.accept{margin-top:56px;display:grid;grid-template-columns:1fr 1fr;gap:28px;align-items:start}
.accept .inner{padding:32px 32px 28px}
.accept h3{font-size:20px;font-weight:700;display:flex;align-items:center;gap:10px}
.accept h3 i{color:var(--accent)}
.checklist{margin-top:18px}
.checklist li{display:grid;grid-template-columns:24px 1fr;gap:10px;padding:10px 0;border-bottom:1px solid var(--line);font-size:15px;color:var(--ink-2)}
.checklist li:last-child{border-bottom:0}
.checklist li i{color:#5BD08A;font-size:18px;margin-top:3px}
.checklist li b{color:var(--ink);font-weight:500}
.show-steps{margin-top:18px;counter-reset:sh}
.show-steps li{counter-increment:sh;display:grid;grid-template-columns:36px 1fr;gap:12px;padding:12px 0;border-bottom:1px solid var(--line);font-size:15px;color:var(--ink-2)}
.show-steps li:last-child{border-bottom:0}
.show-steps li::before{content:counter(sh);width:26px;height:29px;display:grid;place-items:center;font-family:var(--mono);font-size:12px;color:var(--accent);background:var(--accent-soft);clip-path:var(--hex)}
.show-steps li b{color:var(--ink);font-weight:500}
/* chat demo */.chat-demo{margin-top:56px;display:grid;grid-template-columns:1.15fr 1fr;gap:20px}
.chat-win .inner,.trace-win .inner{display:flex;flex-direction:column;height:560px;background:#0B1422}
.win-head{display:flex;align-items:center;justify-content:space-between;gap:12px;height:48px;padding:0 12px 0 18px;border-bottom:1px solid var(--line);flex:none}
.win-head .name{display:flex;align-items:center;gap:10px;font-size:14px;font-weight:500}
.win-head .name small{font-family:var(--mono);font-size:11px;color:var(--ink-3);font-weight:400}
.win-head .live{width:7px;height:7px;border-radius:50%;background:#5BD08A;box-shadow:0 0 0 3px rgba(91,208,138,.18)}
.chat-body,.trace-body{flex:1;overflow-y:auto;padding:20px 18px;display:flex;flex-direction:column;gap:14px;scroll-behavior:smooth;scrollbar-width:thin;scrollbar-color:#22324A transparent}
.msg{max-width:84%;display:flex;flex-direction:column;gap:4px;animation:fall .5s var(--ease) both}
.msg small{font-size:11px;color:var(--ink-3);font-family:var(--mono)}
.msg p{padding:12px 15px;font-size:14.5px;line-height:1.7}
.msg.user{align-self:flex-end;align-items:flex-end}
.msg.user p{background:var(--accent);color:var(--accent-ink);clip-path:polygon(0 0,100% 0,100% 100%,10px 100%,0 calc(100% - 10px))}
.msg.agent p{background:var(--surface-2);border:1px solid var(--line);color:var(--ink)}
.typing{align-self:flex-start;display:flex;gap:5px;padding:14px 16px;background:var(--surface-2);border:1px solid var(--line)}
.typing i{width:6px;height:6px;border-radius:50%;background:var(--ink-3);animation:dot 1.2s infinite}
.typing i:nth-child(2){animation-delay:.15s}
.typing i:nth-child(3){animation-delay:.3s}
@keyframes dot{0%,60%,100%{opacity:.3;transform:none}
30%{opacity:1;transform:translateY(-3px)}
}
.tr{font-family:var(--mono);font-size:12px;line-height:1.7;padding:10px 12px;border-left:2px solid var(--line-2);background:rgba(160,205,235,.03);animation:fall .5s var(--ease) both;white-space:pre-wrap;word-break:break-word;color:var(--ink-2)}
.tr b{display:block;font-weight:500;font-size:11px;letter-spacing:.1em;margin-bottom:2px}
.tr.call{border-left-color:var(--accent)}
.tr.call b{color:var(--accent)}
.tr.ret{border-left-color:#5BD08A}
.tr.ret b{color:#5BD08A}
.tr.doc{border-left-color:#8FB8FF}
.tr.doc b{color:#8FB8FF}
.tr.guard{border-left-color:#F2C47A;background:rgba(242,196,122,.05)}
.tr.guard b{color:#F2C47A}
.chat-input{flex:none;display:flex;align-items:center;gap:10px;height:56px;padding:0 12px 0 18px;border-top:1px solid var(--line);color:var(--ink-3);font-size:14px}
.chat-input span{flex:1}
.chat-input i{font-size:18px;color:var(--accent)}
.empty-trace{margin:auto;text-align:center;color:var(--ink-3);font-size:13px}
.empty-trace i{display:block;font-size:26px;margin-bottom:8px}
@media (max-width:1080px){  .out-grid,.review .inner,.accept,.chat-demo{grid-template-columns:1fr}
  .deliver-grid{grid-template-columns:1fr 1fr}
  .chat-win .inner,.trace-win .inner{height:460px}
}
@media (max-width:767px){  .round{padding-left:0;padding-bottom:72px}
  .round::before{display:none}
  .round-node{position:relative;margin-bottom:14px}
  .deliver-grid{grid-template-columns:1fr}
  .seg,.seg-inner{width:100%}
  .seg a{flex:1;justify-content:center;padding:0 8px}
  .review .inner{padding:22px 20px}
}
/* ---------- Reveal: falling like snow ---------- */@media (prefers-reduced-motion:no-preference){  .reveal{opacity:0;transform:translateY(-18px);filter:blur(6px);transition:opacity 1.3s var(--ease),transform 1.6s var(--ease),filter 1.3s var(--ease);transition-delay:calc(var(--d,0) * 120ms)}
  .reveal.in{opacity:1;transform:none;filter:none}
}
@media (prefers-reduced-motion:reduce){  html{scroll-behavior:auto}
  .aurora span,.caret,.marquee-track,.hex-orbit *,.chain::after,.pin .hex-icon::after,.bob,.stage-orbit path,.p-link,.a-orbit-svg{animation:none!important}
  .panel.show,.tile-in,.hc-detail .swap,.msg,.tr,.typing i{animation:none}
  *{transition-duration:.01ms!important}
  ::view-transition-old(root),::view-transition-new(root){animation:none}
}
/* ---------- Responsive ---------- */@media (max-width:1180px){  .tools-layout{grid-template-columns:1fr}
  .check{position:static;max-width:640px}
  .docs{grid-template-columns:1fr;gap:0}
  .toc{display:none}
  .hex-orbit{opacity:.35;right:-160px}
}
@media (max-width:1080px){  .nav-links{gap:22px}
  .hero-grid,.story-grid,.flow-grid,.loop-grid,.hc-grid,.annot-grid,.compare,.page-hero .phero-grid,.manifesto-grid{grid-template-columns:1fr;gap:56px}
  .pstage{height:360px;min-height:320px;max-width:520px}
  .story-copy,.flow-side,.annots{position:static}
  .install{grid-template-columns:1fr}
  .values{grid-template-columns:1fr 1fr}
  .value:nth-child(2){border-right:0}
  .value:nth-child(3){padding-left:0}
  .value:nth-child(n+3){border-top:1px solid var(--line)}
  .week{grid-template-columns:1fr;gap:24px;padding-left:4px}
}
@media (max-width:960px){  .nav-links,.nav-right .btn{display:none}
  .menu-btn{display:inline-flex}
  .entry-grid,.visit{grid-template-columns:1fr}
  .entry:nth-child(2){margin-top:0}
  .tips{grid-template-columns:1fr}
  .tip,.tip:nth-child(n){grid-column:auto;margin-top:0}
  .facts-row{grid-template-columns:1fr 1fr}
  .fact:nth-child(3)::before{display:none}
  .fact:nth-child(n+3){border-top:1px solid var(--line)}
  .chain{grid-template-columns:1fr;gap:28px}
  .chain::before,.chain::after{display:none}
  .chain-item{display:grid;grid-template-columns:64px 1fr;gap:20px;text-align:left;align-items:center}
  .chain-item h3{margin-top:0}
  .chain-item p{margin:4px 0 0;max-width:none}
  .chain-node{grid-row:span 3}
  .tool-grid,.gloss,.fixes{grid-template-columns:1fr 1fr}
  .principle{grid-template-columns:60px 1fr;gap:20px}
  .principle .eg{grid-column:2}
  .foot-grid{grid-template-columns:1fr 1fr}
  .foot-brand{grid-column:1/-1}
}
@media (max-width:767px){  :root{--section:80px}
  .wrap{padding:0 20px}
  .hero{padding:104px 0 56px}
  .hero-sub{font-size:16px}
  .hero-cta .btn{flex:1;justify-content:center;padding:0 16px}
  .term pre{font-size:11.5px;height:400px;padding:16px}
  .stage{height:auto;min-height:0;display:flex;flex-direction:column}
  #crystal{position:relative;height:340px}
  .stage-orbit{top:170px;left:50%;width:330px}
  .chip-prompt,.chip-status{display:none}
  .float.term-float{position:relative;width:100%;margin-top:-12px;transform:none!important}
  .term-float .term pre{height:250px;font-size:11.5px}
  .page-hero{padding:128px 0 64px}
  .entry .inner{padding:32px 24px;min-height:0}
  .flow-step .inner{padding:28px 22px;gap:18px}
  .flow-step .time{font-size:32px}
  .tool-grid,.gloss,.fixes{grid-template-columns:1fr}
  .fact{padding:32px 16px 28px}
  .acc-q{font-size:16px;padding:22px 2px;gap:14px;flex-wrap:wrap}
  .acc-q .out{order:3;margin-left:70px}
  .acc-a p{padding-right:8px}
  .honeycomb{--hw:96px}
  .hc i{font-size:20px}
.hc b{font-size:13px}
.hc small{display:none}
  .hc-detail .inner,.visit .inner{padding:30px 24px}
  .pager .inner{padding:32px 24px}
  .values{grid-template-columns:1fr}
  .value,.value+.value{padding:32px 0;border-right:0;border-top:1px solid var(--line)}
  .foot-grid{grid-template-columns:1fr}
  .foot-bottom{flex-direction:column;align-items:flex-start}
  .aurora{width:600px;height:500px;right:-200px}
  .hex-orbit,.pstage{display:none}
  .loop-node{width:96px}
  .loop-node b{font-size:13px}
  .loop-core{width:104px;height:118px}
  .loop-core div{font-size:17px}
}