:root{--ink:#23272e;--ink-2:#5d646d;--ink-3:#9aa1ab;--bg:#fafbfc;--glass:rgba(255,255,255,.55);--glass-strong:rgba(255,255,255,.72);--glass-border:rgba(255,255,255,.8);--line:rgba(35,39,46,.08);--accent:#2f6fdb;--radius:20px;--maxw:1080px;--shadow-glass:0 8px 28px rgba(31,38,45,.05), inset 0 1px 0 rgba(255,255,255,.6);--shadow-glass-hover:0 16px 40px rgba(31,38,45,.1)}body{font-family:-apple-system,BlinkMacSystemFont,PingFang SC,Hiragino Sans GB,Microsoft YaHei,sans-serif;background:var(--bg);color:var(--ink);line-height:1.7;-webkit-font-smoothing:antialiased}.serif,.brand .motto{font-family:Songti SC,STSong,serif}body:before{content:"";position:fixed;top:0;right:0;bottom:0;left:0;z-index:-1;pointer-events:none;background:radial-gradient(52% 42% at 12% 0%,rgba(191,219,254,.5),transparent 70%),radial-gradient(46% 38% at 88% 6%,rgba(254,215,170,.42),transparent 70%),radial-gradient(56% 46% at 50% 105%,rgba(221,214,254,.38),transparent 70%)}.glass{background:var(--glass);backdrop-filter:blur(20px) saturate(1.5);-webkit-backdrop-filter:blur(20px) saturate(1.5);border:1px solid var(--glass-border);border-radius:var(--radius);box-shadow:var(--shadow-glass)}.glass-strong{background:var(--glass-strong);backdrop-filter:blur(20px) saturate(1.5);-webkit-backdrop-filter:blur(20px) saturate(1.5);border:1px solid var(--glass-border);border-radius:var(--radius);box-shadow:var(--shadow-glass)}.brandbar{position:sticky;top:0;z-index:50;background:#fafbfc99;backdrop-filter:blur(20px) saturate(1.5);-webkit-backdrop-filter:blur(20px) saturate(1.5);border-bottom:1px solid var(--line)}.brandbar-inner{max-width:var(--maxw);margin:0 auto;padding:13px 24px;display:flex;align-items:center;gap:22px;flex-wrap:wrap}.brandbar .links{margin-left:auto;display:flex;gap:20px;font-size:14px}.brandbar .links a{color:var(--ink-2);text-decoration:none;transition:color .15s}.brandbar .links a:hover{color:var(--accent)}.nav-brand{font-weight:700;font-size:15px;letter-spacing:.02em;color:var(--ink);text-decoration:none}.nav-brand .domain{color:var(--ink-3);font-weight:400}.nav-brand .motto{font-style:normal;font-size:13px;letter-spacing:.12em;color:var(--ink-3);margin-left:14px;padding-left:14px;border-left:1px solid var(--line)}.aurora{position:relative;overflow:hidden;background:#f4f6fb;display:flex;align-items:center;justify-content:center}.aurora:before{content:"";position:absolute;top:-40%;right:-40%;bottom:-40%;left:-40%;background:radial-gradient(42% 55% at 18% 22%,rgba(165,200,255,.95),transparent 70%),radial-gradient(46% 58% at 82% 18%,rgba(228,190,255,.9),transparent 70%),radial-gradient(50% 62% at 62% 88%,rgba(255,212,178,.85),transparent 70%),radial-gradient(42% 52% at 28% 92%,rgba(186,228,255,.75),transparent 70%),radial-gradient(38% 48% at 50% 40%,rgba(255,255,255,.6),transparent 70%);filter:blur(28px)}.aurora.h2:before{filter:blur(28px) hue-rotate(28deg)}.aurora.h3:before{filter:blur(28px) hue-rotate(-32deg)}.aurora.h4:before{filter:blur(28px) hue-rotate(55deg)}.aurora.h5:before{filter:blur(28px) hue-rotate(-60deg)}.aurora.h6:before{filter:blur(28px) hue-rotate(90deg)}.aurora-title{position:relative;z-index:1;font-size:23px;font-weight:800;color:#20242f;letter-spacing:.02em;text-align:center;line-height:1.35;padding:0 24px}.aurora-title small{display:block;font-size:12px;font-weight:500;letter-spacing:.14em;color:#20242f8c;margin-top:9px}.badge{font-size:12px;font-weight:600;padding:2px 10px;border-radius:99px}.badge-live{background:#2f6fdb17;color:var(--accent)}.badge-info{background:#23272e0f;color:var(--ink-2)}.badge-new{background:var(--accent);color:#fff;box-shadow:0 2px 10px #2f6fdb59}.sec-num{font-size:12.5px;font-weight:700;font-variant-numeric:tabular-nums;padding:2px 11px;border-radius:99px;color:var(--accent);background:#2f6fdb14;border:1px solid rgba(47,111,219,.12)}a{color:inherit}.cta{color:var(--accent);font-weight:600}:root{--ink: #1d1d1f;--text: #3a3a3c;--dim: #6e6e73;--faint: #86868b;--blue: #2f6fdb;--purple: #bf5af2;--pink: #ff375f;--orange: #ff9f0a;--teal: #00c7be;--green: #28cd41;--glass: rgba(255, 255, 255, .58);--glass-strong: rgba(255, 255, 255, .78);--stroke: rgba(255, 255, 255, .72);--line: rgba(29, 29, 31, .09);--radius: 26px;--shadow: 0 12px 40px rgba(31, 38, 135, .1), 0 2px 8px rgba(31, 38, 135, .05);--shadow-lg: 0 24px 70px rgba(31, 38, 135, .16), 0 4px 14px rgba(31, 38, 135, .07);--mono: ui-monospace, "SF Mono", "JetBrains Mono", Menlo, Consolas, monospace}*{box-sizing:border-box}html,body{margin:0;height:100%}body{display:flex;flex-direction:column;color:var(--text);font:16px/1.9 -apple-system,PingFang SC,Hiragino Sans GB,Microsoft YaHei,sans-serif;background:radial-gradient(circle 560px at 10% -6%,rgba(127,178,255,.5),transparent 70%),radial-gradient(circle 620px at 92% 2%,rgba(217,168,255,.42),transparent 70%),radial-gradient(circle 520px at 84% 82%,rgba(255,194,209,.38),transparent 70%),radial-gradient(circle 540px at 4% 94%,rgba(165,240,234,.42),transparent 70%),radial-gradient(circle 460px at 52% 46%,rgba(255,224,176,.28),transparent 70%),#f4f6fb;background-attachment:fixed}body:before{display:none}.shell{display:flex;flex:1;min-height:0;min-width:0}.creed-line{margin-top:14px;font-size:11.5px;color:var(--faint);text-align:center;letter-spacing:.05em}#sidebar{width:280px;min-width:280px;height:calc(100vh - 80px);overflow-y:auto;margin:16px 0 16px 16px;padding:20px 14px;border:1px solid var(--stroke);border-radius:var(--radius);background:linear-gradient(135deg,#ffffffa8,#ffffff61);backdrop-filter:blur(28px) saturate(170%);-webkit-backdrop-filter:blur(28px) saturate(170%);box-shadow:var(--shadow);position:sticky;top:16px}.progress-wrap{display:flex;align-items:center;gap:10px;margin-bottom:18px}#progress-bar{flex:1;height:6px;border-radius:3px;background:#1d1d1f14;overflow:hidden}#progress-fill{height:100%;width:0;border-radius:3px;background:linear-gradient(90deg,var(--blue),var(--purple));transition:width .3s}#progress-text{font-size:12px;color:var(--dim);font-family:var(--mono)}.nav-home{display:block;text-decoration:none;color:var(--blue);font-size:18px;font-weight:700;margin-bottom:2px}.nav-home span{display:block;color:var(--dim);font-size:12px;font-weight:400}.nav-biggroup{display:flex;align-items:center;gap:6px;width:100%;text-align:left;margin:16px 0 4px;padding:2px 4px;border:0;background:none;cursor:pointer;font-size:11px;letter-spacing:.12em;color:var(--faint);text-transform:uppercase;font-family:var(--mono)}.nav-biggroup:hover{color:var(--dim)}.bg-caret{display:inline-block;transform:rotate(90deg);transition:transform .18s}.nav-biggroup.collapsed .bg-caret{transform:none}.bg-name{flex:1}.bg-progress{color:var(--faint);letter-spacing:.04em}.q-dot{display:inline-block;width:7px;height:7px;border-radius:50%;margin-right:7px;vertical-align:1px}.q-dot.good{background:var(--green)}.q-dot.bad{background:var(--pink)}.q-dot.part{background:var(--orange)}a.nav-item{display:block;padding:8px 12px;margin:3px 0;border-radius:12px;color:var(--ink);text-decoration:none;font-size:13.5px;font-weight:500}a.nav-item:hover{background:#ffffffbf}a.nav-item.active{background:#ffffffd9;color:var(--blue);box-shadow:0 4px 14px #1f26871a}.nav-check{display:inline-block;width:16px;color:var(--green)}#main{flex:1;display:flex;justify-content:center;padding:40px 32px 110px}.column{width:100%;max-width:800px}@media(min-width:1500px){.column{max-width:840px}}.hero{padding-top:6vh}.hero h1{font-size:34px;margin:8px 0;color:var(--ink);letter-spacing:.01em}.hero .sub{color:var(--dim);font-size:16px}.warn-box{border:1px solid rgba(255,159,10,.28);background:#fff8e8b8;border-left:3px solid var(--orange);padding:12px 18px;border-radius:14px;margin:22px 0;color:#7a5a12;font-size:14px;line-height:1.9}.warn-box code{background:#ff9f0a1f;padding:1px 6px;border-radius:5px}button.primary{margin-top:18px;padding:12px 26px;border:0;border-radius:999px;cursor:pointer;background:linear-gradient(135deg,#0071e3,#5e5ce6);color:#fff;font-weight:600;font-size:15px;box-shadow:0 8px 24px #0071e347}button.primary:hover{filter:brightness(1.06);transform:translateY(-1px)}.steps{border:1px solid rgba(0,199,190,.28);border-left:3px solid var(--teal);background:#00c7be14;border-radius:14px;padding:12px 18px;margin:20px 0;font-size:14px;line-height:2.1;color:#0b6b64}.steps b{color:#0b7d70}.steps code{background:#00c7be1f;padding:1px 6px;border-radius:5px;font-family:var(--mono);font-size:12.5px;color:#0b6b64}.journey{border-left:2px solid rgba(29,29,31,.12);margin:14px 0 20px 8px;padding:4px 0 4px 22px}.journey div{position:relative;padding:5px 0;color:var(--dim);font-size:14px;overflow-wrap:anywhere}.journey div:before{content:"";position:absolute;left:-27px;top:13px;width:9px;height:9px;border-radius:50%;background:#c7c7cc}.journey div.now{color:var(--blue);font-weight:600}.journey div.now:before{background:var(--blue);box-shadow:0 0 0 4px #0071e329}.ch-title-row{display:flex;align-items:baseline;gap:12px;flex-wrap:wrap;padding-bottom:4px}.ch-title-row h1{font-size:28px;margin:0;color:var(--ink);letter-spacing:.01em}.badge{font-size:12px;padding:3px 11px;border-radius:999px;border:1px solid rgba(0,113,227,.35);color:var(--blue);background:#0071e314;font-family:var(--mono);position:relative;top:-3px}.badge.s-badge{border-color:#ff9f0a73;color:#b57608;background:#ff9f0a1a}.tabs{display:inline-flex;gap:4px;margin:18px 0 10px;padding:4px;border-radius:14px;background:#ffffff8c;border:1px solid var(--stroke);-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px)}.tab{border:0;background:transparent;color:var(--dim);padding:7px 18px;border-radius:11px;cursor:pointer;font-size:14px;font-weight:500}.tab.active{background:#fff;color:var(--ink);box-shadow:0 2px 10px #1f26871f}.read{font-size:16.5px;line-height:2.05;letter-spacing:.01em;color:var(--text)}.read p{margin:1.15em 0}.read h3{margin:2.4em 0 .9em;font-size:19.5px;line-height:1.5;color:var(--ink);padding-left:14px;border-left:4px solid var(--blue);scroll-margin-top:76px}.read h4{margin:1.8em 0 .6em;font-size:16.5px;color:var(--ink)}.read strong{color:var(--ink);font-weight:650}.read code{font-family:var(--mono);font-size:.84em;background:#0071e312;color:#0058c7;padding:2px 7px;border-radius:6px}.read pre{background:#ffffffbf;border:1px solid var(--stroke);border-radius:14px;padding:16px 20px;overflow-x:auto;font-size:13px;line-height:1.85;font-family:var(--mono);margin:1.2em 0;box-shadow:0 2px 10px #1f26870f}.read pre code{background:none;padding:0;color:var(--ink)}.read ol li,.read ul li{margin:.45em 0}.read li::marker{color:var(--blue)}.read table{border-collapse:collapse;margin:1.3em 0;width:100%;font-size:14px;line-height:1.7;border-radius:12px;overflow:hidden}.read th,.read td{border:1px solid var(--line);padding:8px 14px;text-align:left;background:#fff9}.read th{background:#0071e314;color:var(--blue);font-weight:600}.read td:first-child{color:#0058c7;font-family:var(--mono);font-size:13px;white-space:nowrap}.read td:last-child{color:var(--dim)}.depth-tag{display:inline-block;margin:2.6em 0 .2em;font-family:var(--mono);font-size:12px;letter-spacing:.12em;color:#fff;background:linear-gradient(135deg,#0071e3,#5e5ce6);border-radius:999px;padding:3px 14px}.fourq{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin:1.1em 0 1.4em}@media(max-width:760px){.fourq{grid-template-columns:1fr}}.fourq div{background:#ffffff9e;border:1px solid var(--stroke);border-radius:14px;padding:10px 16px;font-size:14px;line-height:1.85;box-shadow:0 2px 10px #1f26870d}.fourq b{color:var(--blue);font-family:var(--mono);font-size:13px;margin-right:8px}details.primer{border:1px dashed rgba(191,90,242,.45);background:#f3ecff80;border-radius:14px;padding:10px 16px;margin:1.2em 0;font-size:14px;line-height:1.95;color:#5b3a99}details.primer summary{cursor:pointer;color:#9a3fd1;font-size:13px;font-family:var(--mono);letter-spacing:.08em}details.primer[open] summary{margin-bottom:8px}details.primer ul{margin:4px 0;padding-left:4px;list-style:none}details.primer li{margin:.4em 0}details.primer b{color:#7a2fd1}p.tip,p.soul{border-radius:12px;padding:12px 18px;font-size:14.5px;line-height:1.95}p.tip{border-left:3px solid var(--purple);background:#f3ecff99;color:#6b3fa8}p.soul{border-left:3px solid var(--teal);background:#00c7be17;color:#0b6b64;margin-top:2.4em}p.punch{border-left:3px solid var(--green);background:#28cd411a;border-radius:0 12px 12px 0;padding:12px 18px;font-size:14px;line-height:1.95;color:#17702f;margin-top:1.8em}.punch b{color:#17853a}.worldview{border:1px solid rgba(0,113,227,.22);border-left:3px solid var(--blue);border-radius:14px;background:linear-gradient(135deg,#0071e314,#5e5ce60f);padding:12px 18px;margin:1.3em 0;font-size:14.5px;line-height:1.95;color:#0b4f9e}.worldview .wv-title{display:block;font-family:var(--mono);font-size:12px;letter-spacing:.14em;color:var(--blue);margin-bottom:4px}.worldview b{color:#084a92}details.refs{margin-top:18px;border:1px dashed rgba(29,29,31,.18);border-radius:14px;padding:10px 18px;font-size:13.5px;line-height:1.9;color:var(--dim);background:#ffffff73}details.refs summary{cursor:pointer;color:#b57608}details.refs a{color:var(--blue)}.quiz-title{margin:44px 0 12px;font-size:16px;color:#b57608}.quiz-card{border:1px solid var(--stroke);border-radius:16px;padding:16px 20px;margin:12px 0;background:#ffffff9e;box-shadow:0 2px 12px #1f26870d}.quiz-card.right{border-color:#28cd418c}.quiz-card.wrong{border-color:#ff375f73}.quiz-head{display:flex;gap:10px;align-items:baseline}.quiz-no{color:var(--purple);font-family:var(--mono);font-weight:700}.quiz-q{font-weight:600;color:var(--ink)}.quiz-code{background:#1d1d1f0b;border:1px solid var(--line);border-radius:10px;padding:10px 14px;font-family:var(--mono);font-size:12.5px;line-height:1.8;overflow-x:auto;margin:10px 0;white-space:pre;color:var(--ink)}.quiz-area{margin-top:10px;display:flex;flex-wrap:wrap;gap:8px;align-items:stretch}.quiz-area .primary{align-self:flex-start;border-radius:11px}.quiz-opt{border:1px solid var(--line);background:#fffc;color:var(--ink);padding:8px 14px;border-radius:11px;cursor:pointer;font-size:13.5px;line-height:1.7}.quiz-opt:hover{border-color:var(--blue);color:var(--blue)}.quiz-area input,.quiz-area textarea{flex:1;min-width:220px;background:#fffc;border:1px solid var(--line);border-radius:11px;color:var(--ink);padding:8px 12px;font:inherit}.quiz-area .primary{margin:0;padding:8px 16px;font-size:13.5px}.shake{animation:shake .3s}@keyframes shake{25%{transform:translate(-4px)}75%{transform:translate(4px)}}.quiz-verdict{padding:6px 0;font-weight:700}.quiz-verdict.good{color:#17853a}.quiz-verdict.bad{color:var(--pink)}.quiz-verdict i{font-weight:400;color:var(--dim);font-style:normal}.quiz-why{color:var(--dim);font-size:13.5px;line-height:1.9;margin:4px 0 10px}.quiz-retry{border:1px solid var(--line);background:transparent;color:var(--dim);border-radius:7px;padding:4px 12px;cursor:pointer;font-size:12.5px}.quiz-summary{color:var(--dim);font-size:13.5px;margin-top:8px}.ch-footer{display:flex;justify-content:space-between;align-items:center;margin-top:30px}#done-btn{border:1px solid var(--line);background:#fff9;color:var(--dim);padding:8px 18px;border-radius:999px;cursor:pointer;font-size:13.5px}#done-btn.is-done{border-color:#28cd418c;color:#17853a}.ch-nav a{color:var(--blue);text-decoration:none;margin-left:12px;font-family:var(--mono)}.duo{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin:1.2em 0}.duo .pane{min-width:0}@media(max-width:860px){.duo{grid-template-columns:1fr}}.duo .pane pre{margin:0;border-top:0;border-radius:0 0 14px 14px}.duo .pane .pane-tag{display:block;font-family:var(--mono);font-size:12px;letter-spacing:.08em;padding:6px 14px;border:1px solid var(--stroke);border-bottom:0;border-radius:14px 14px 0 0;background:#fff9}.duo .pane.jv .pane-tag{color:#b57608}.duo .pane.ts .pane-tag{color:var(--blue)}.duo .pane.jv pre{color:#6b4a00}.duo .pane.ts pre{color:#0b4f9e}blockquote.spec{margin:1.3em 0;padding:12px 18px;border-left:3px solid var(--orange);background:#fff8e8b0;border-radius:0 12px 12px 0;font-size:14px;color:#7a5a12}blockquote.spec .src{display:block;margin-top:6px;font-family:var(--mono);font-size:12px;color:var(--dim)}.depth-tag+h3{margin-top:.7em}.sim-wrap{border:1px solid var(--stroke);border-radius:var(--radius);background:linear-gradient(135deg,#fffc,#ffffff8c);backdrop-filter:blur(24px) saturate(160%);-webkit-backdrop-filter:blur(24px) saturate(160%);padding:18px 20px;box-shadow:var(--shadow)}.sim-toolbar{display:flex;gap:10px;align-items:center;flex-wrap:wrap;margin-bottom:14px}.sim-toolbar select{background:#fffc;color:var(--ink);border:1px solid var(--line);border-radius:10px;padding:7px 10px;font-size:13.5px}.sim-btn{border:1px solid var(--line);background:#fffc;color:var(--ink);border-radius:10px;padding:7px 14px;cursor:pointer;font-size:13px}.sim-btn:hover{border-color:var(--blue);color:var(--blue)}.sim-btn:disabled{opacity:.4;cursor:default}.sim-code{background:#1d1d1f0a;border:1px solid var(--line);border-radius:12px;padding:10px 14px;font-family:var(--mono);font-size:12.5px;line-height:1.8;overflow-x:auto;margin-bottom:14px;white-space:pre}.sim-code .ln{display:block;padding:0 6px;border-radius:5px;color:var(--text)}.sim-code .ln.hl{background:#0071e321;color:var(--ink);outline:1px solid rgba(0,113,227,.35)}.sim-panels{display:grid;grid-template-columns:1fr 1fr 1fr 1fr;gap:10px}@media(max-width:900px){.sim-panels{grid-template-columns:1fr 1fr}}.sim-panel{border:1px solid var(--stroke);border-radius:14px;background:#ffffffa8;padding:8px 10px;min-height:150px}.sim-panel.flash{outline:2px solid var(--blue)}.sim-panel h4{margin:0 0 8px;font-size:12px;color:var(--dim);font-family:var(--mono);letter-spacing:.08em}.sim-panel.p-stack h4{color:var(--purple)}.sim-panel.p-micro h4{color:var(--teal)}.sim-panel.p-macro h4{color:var(--orange)}.sim-panel.p-out h4{color:var(--blue)}.sim-item{font-family:var(--mono);font-size:12px;border-radius:8px;padding:4px 8px;margin:5px 0;background:#ffffffd9;color:var(--ink);animation:pop .25s;border:1px solid var(--line)}.sim-panel.p-stack .sim-item{background:#bf5af21a;border-color:#bf5af240}.sim-panel.p-micro .sim-item{background:#00c7be1a;border-color:#00c7be4d}.sim-panel.p-macro .sim-item{background:#ff9f0a1f;border-color:#ff9f0a59}.sim-panel.p-out .sim-item{background:#0071e314;border-color:#0071e333}.sim-panel.dead{opacity:.35}.sim-empty{color:#a5a5ab;font-size:12px;text-align:center;padding:6px 0;font-family:var(--mono)}.sim-explain{margin-top:14px;border-left:3px solid var(--teal);background:#00c7be17;border-radius:0 12px 12px 0;padding:10px 16px;font-size:14px;min-height:52px;color:var(--text)}.sim-progress{color:var(--dim);font-size:12px;font-family:var(--mono);margin-left:auto}@keyframes pop{0%{transform:scale(.92);opacity:.4}to{transform:scale(1);opacity:1}}.type-badge{display:inline-block;font-family:var(--mono);font-size:12.5px;border:1px solid rgba(191,90,242,.4);color:#8a2fd1;background:#bf5af214;border-radius:8px;padding:6px 12px;margin:3px 4px 3px 0}.type-badge.narrow{border-color:var(--teal);color:#0b7d70;background:#00c7be1a}.verdict{border-radius:10px;padding:9px 14px;font-family:var(--mono);font-size:12.5px;margin:10px 0;white-space:pre-wrap}.verdict.ok{border:1px solid rgba(40,205,65,.4);background:#28cd411a;color:#17853a}.verdict.err{border:1px solid rgba(255,55,95,.35);background:#ff375f14;color:#d81b4c}.toggle-row{display:flex;gap:10px;align-items:center;margin:8px 0 12px;flex-wrap:wrap}.pc-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(170px,1fr));gap:10px;margin-bottom:12px}.pcard{border-radius:14px;border:1px solid var(--stroke);background:#ffffffbf;padding:8px 12px;font-family:var(--mono);font-size:12px;line-height:1.8;box-shadow:0 2px 10px #1f26870d}.pcard .pc-name{color:var(--dim)}.pcard .pc-state{display:inline-block;padding:1px 8px;border-radius:999px;margin:4px 0;font-size:11px}.pcard.pc-pending .pc-state{background:#ff9f0a24;color:#9a6b00}.pcard.pc-fulfilled .pc-state{background:#28cd411f;color:#17853a}.pcard.pc-rejected .pc-state{background:#ff375f1a;color:#d81b4c}.pcard .pc-v{color:var(--ink)}.pcard .pc-cbs{color:var(--dim);font-size:11px}.sim-notes{margin:14px 0 0;padding:0;list-style:none}.sim-notes li{position:relative;padding-left:20px;margin:.45em 0;font-size:13.5px;line-height:1.9;color:var(--dim)}.sim-notes li:before{content:"▸";position:absolute;left:2px;color:var(--blue)}.rcard{border-radius:14px;border:1px solid var(--stroke);background:#ffffffbf;padding:8px 12px;font-family:var(--mono);font-size:12px;line-height:1.8;box-shadow:0 2px 10px #1f26870d}.rcard.root{border-color:#bf5af273}.rcard.root .pc-name{color:#8a2fd1}.rcard.unreach{opacity:.8;border-style:dashed}.rcard.freed{opacity:.45;border-style:dashed}.rcard.freed .pc-name{text-decoration:line-through}#sync-box{margin-top:24px;padding-top:16px;border-top:1px dashed rgba(29,29,31,.14)}.sync-title{font-size:12.5px;font-weight:600;color:var(--dim)}.sync-title .sync-status{font-weight:400;color:var(--faint)}.sync-title .sync-status.is-err{color:var(--pink)}.sync-hint{margin:6px 0 10px;font-size:11.5px;line-height:1.7;color:var(--faint)}.sync-row{display:flex;gap:6px;align-items:center;margin-top:8px;flex-wrap:wrap}.sync-code{flex:1;min-width:0;padding:5px 9px;border-radius:9px;background:#fffc;border:1px solid var(--line);font-family:var(--mono);font-size:12.5px;letter-spacing:.06em;color:var(--ink);-webkit-user-select:all;user-select:all;text-align:center}.sync-btn{padding:5px 12px;border:1px solid var(--line);border-radius:9px;background:#fffc;color:var(--blue);font-size:12px;font-weight:600;cursor:pointer;transition:background .15s}.sync-btn:hover{background:#fff}.sync-btn.subtle{margin-top:8px;color:var(--faint);font-weight:400}.sync-import{flex:1;min-width:0;padding:5px 9px;border:1px solid var(--line);border-radius:9px;background:#fffc;font-family:var(--mono);font-size:12px;letter-spacing:.06em;text-transform:uppercase;color:var(--ink);outline:none}.sync-import:focus{border-color:var(--blue)}.sync-import::placeholder{text-transform:none;letter-spacing:0;color:var(--faint);font-family:inherit}#nav-toggle{display:none}@media(max-width:860px){body{flex-direction:column;height:auto}.shell{display:block}#sidebar{position:static;width:auto;min-width:0;height:auto;flex-shrink:0;margin:12px 12px 0;padding:12px 14px}.progress-wrap{margin-bottom:0}#nav-toggle{display:block;flex-shrink:0;margin-left:auto;padding:3px 12px;border:1px solid var(--line);border-radius:999px;background:#fffc;color:var(--blue);font-size:12.5px;font-weight:600;cursor:pointer}#nav,#sync-box,#search-box,#theme-row,.creed-line{display:none}body.nav-open #nav{display:block;margin-top:14px}body.nav-open #sync-box{display:block}body.nav-open #search-box{display:block;margin-top:12px}body.nav-open #theme-row,body.nav-open .creed-line{display:block}#main{padding:18px 16px 90px}.hero{padding-top:2vh}}@media(max-width:860px){body{font-size:17px}#nav-toggle{font-size:14px}a.nav-item{font-size:15px}.nav-biggroup{font-size:12px}.hero .sub{font-size:17px}.badge{font-size:12.5px}.tab{font-size:15px}.warn-box,.steps,.journey div,.fourq div,blockquote.spec,details.primer,p.tip,p.soul,p.punch,.worldview{font-size:15.5px}.steps code{font-size:13.5px}details.primer summary{font-size:14px}.read{font-size:18px}.read h3{font-size:21px}.read h4{font-size:18px}.read pre{font-size:14px}.read table{font-size:15px}.read td:first-child,.fourq b{font-size:14px}details.refs{font-size:15px}.quiz-title{font-size:17px}.quiz-opt,.quiz-area .primary{font-size:15px}.quiz-why,.quiz-summary{font-size:14.5px}.quiz-code,.quiz-retry{font-size:13.5px}#done-btn,.sim-explain{font-size:15px}.sim-notes li{font-size:14.5px}.sync-hint{font-size:12.5px}}.ch-loading{padding:80px 0;text-align:center;color:var(--dim)}.toc{font-size:12.5px}.toc-title{font-size:11px;letter-spacing:.12em;color:var(--faint);font-family:var(--mono);margin-bottom:6px}.toc-link{display:block;width:100%;text-align:left;border:0;background:none;cursor:pointer;padding:5px 10px;margin:2px 0;border-radius:8px;border-left:2px solid transparent;font-size:12.5px;line-height:1.55;color:var(--dim)}.toc-link:hover{color:var(--ink);background:#7f7f7f1a}.toc-link.active{color:var(--blue);border-left-color:var(--blue);font-weight:600;background:#0071e30f}@media(min-width:1240px){.column.has-toc{max-width:1060px}.read-layout{display:flex;align-items:flex-start}.read-layout>.read{flex:1;min-width:0}.toc{width:200px;flex-shrink:0;margin:1.2em 0 0 26px;position:sticky;top:76px;max-height:calc(100vh - 100px);overflow-y:auto}.toc-toggle{display:none}}@media(max-width:1239px){.toc{position:sticky;top:62px;z-index:30;margin-bottom:14px}.toc-toggle{width:100%;text-align:left;padding:8px 14px;cursor:pointer;border:1px solid var(--stroke);border-radius:12px;background:var(--glass-strong);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);color:var(--dim);font-size:13px;font-weight:600}.toc-body{display:none;margin-top:6px;padding:10px 12px;max-height:50vh;overflow-y:auto;border:1px solid var(--stroke);border-radius:12px;background:var(--glass-strong);backdrop-filter:blur(24px);-webkit-backdrop-filter:blur(24px)}.toc.open .toc-body{display:block}}@keyframes hitflash{0%{background:#ff9f0a59}to{background:transparent}}.hit-flash{animation:hitflash 2.2s ease-out;border-radius:8px}.pre-wrap{position:relative}.copy-btn{position:absolute;top:8px;right:8px;z-index:2;padding:3px 10px;font-size:12px;border:1px solid var(--line);border-radius:8px;background:var(--glass-strong);backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);color:var(--dim);cursor:pointer;opacity:0;transition:opacity .15s}.pre-wrap:hover .copy-btn,.copy-btn:focus-visible{opacity:1}.copy-btn.ok{opacity:1;color:var(--green);border-color:#28cd4180}@media(hover:none){.copy-btn{opacity:.75}}#search-box{margin-bottom:12px}#search-input{width:100%;padding:7px 12px;border:1px solid var(--line);border-radius:11px;background:#fffc;color:var(--ink);font-size:13px;outline:none}#search-input:focus{border-color:var(--blue)}#search-results{display:none;margin-top:6px}#search-results.show{display:block}.sr-item{display:block;width:100%;text-align:left;cursor:pointer;padding:7px 10px;margin:3px 0;border:1px solid var(--line);border-radius:10px;background:#ffffffa8;font-size:12.5px;line-height:1.6;color:var(--ink)}.sr-item:hover{border-color:var(--blue)}.sr-item b{display:block;color:var(--blue);font-weight:600}.sr-item span{display:block;color:var(--dim)}.sr-item em{display:block;font-style:normal;color:var(--faint);font-size:11.5px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.sr-empty{padding:8px 10px;color:var(--faint);font-size:12.5px}#theme-row{margin-top:14px;text-align:center}#theme-toggle{padding:5px 14px;border:1px solid var(--line);border-radius:999px;background:#ffffffb3;color:var(--dim);font-size:12.5px;cursor:pointer}#theme-toggle:hover{color:var(--blue);border-color:var(--blue)}html.dark{--ink: #f2f2f5;--text: #cfcfd4;--dim: #a8a8ae;--faint: #84848c;--ink-2: #b7bcc5;--ink-3: #8f96a0;--bg: #101216;--line: rgba(255, 255, 255, .13);--stroke: rgba(255, 255, 255, .13);--glass: rgba(26, 28, 35, .58);--glass-strong: rgba(32, 34, 43, .8);--shadow: 0 12px 40px rgba(0, 0, 0, .45), 0 2px 8px rgba(0, 0, 0, .3);--shadow-lg: 0 24px 70px rgba(0, 0, 0, .55), 0 4px 14px rgba(0, 0, 0, .35)}html.dark body{color:var(--text);background:radial-gradient(circle 560px at 10% -6%,rgba(47,111,219,.16),transparent 70%),radial-gradient(circle 620px at 92% 2%,rgba(191,90,242,.13),transparent 70%),radial-gradient(circle 520px at 84% 82%,rgba(255,55,95,.1),transparent 70%),radial-gradient(circle 540px at 4% 94%,rgba(0,199,190,.12),transparent 70%),radial-gradient(circle 460px at 52% 46%,rgba(255,159,10,.07),transparent 70%),#0e1014;background-attachment:fixed}html.dark .brandbar{background:#10121699}html.dark #sidebar{background:linear-gradient(135deg,#22252eb8,#181a218c)}html.dark #progress-bar{background:#ffffff1f}html.dark a.nav-item:hover{background:#ffffff17}html.dark a.nav-item.active{background:#ffffff1f;box-shadow:none}html.dark .tabs{background:#ffffff14}html.dark .tab.active{background:#ffffff24;box-shadow:none}html.dark .badge.s-badge{color:#e8b95c}html.dark .warn-box{background:#ff9f0a1a;color:#e8c375}html.dark .steps{background:#00c7be14;color:#63d8cb}html.dark .steps b,html.dark .steps code{color:#63d8cb}html.dark .journey{border-left-color:#ffffff29}html.dark .journey div:before{background:#4a4a52}html.dark .read code{background:#2f6fdb2e;color:#8fb8ff}html.dark .read pre{background:#ffffff0e;box-shadow:none}html.dark .read th,html.dark .read td{background:#ffffff0d}html.dark .read th{background:#2f6fdb29}html.dark .read td:first-child{color:#8fb8ff}html.dark .fourq div{background:#ffffff0e;box-shadow:none}html.dark blockquote.spec{background:#ff9f0a17;color:#e8c375}html.dark details.primer{background:#bf5af214;color:#cbaaf2}html.dark details.primer summary,html.dark details.primer b{color:#d0a4ff}html.dark p.tip{background:#bf5af21a;color:#cbaaf2}html.dark p.soul{background:#00c7be14;color:#63d8cb}html.dark p.punch{background:#28cd4117;color:#6fdc8c}html.dark .punch b{color:#6fdc8c}html.dark .worldview{background:linear-gradient(135deg,#2f6fdb24,#5e5ce61a);color:#9cc4ff}html.dark .worldview b{color:#c0d9ff}html.dark details.refs{background:#ffffff0d}html.dark details.refs summary{color:#e8b95c}html.dark .quiz-title{color:#e8b95c}html.dark .quiz-card{background:#ffffff0e;box-shadow:none}html.dark .quiz-code{background:#ffffff0f}html.dark .quiz-opt,html.dark .quiz-area input,html.dark .quiz-area textarea{background:#ffffff14}html.dark .quiz-verdict.good{color:#6fdc8c}html.dark #done-btn{background:#ffffff12}html.dark #done-btn.is-done{color:#6fdc8c}html.dark .duo .pane .pane-tag{background:#ffffff12}html.dark .duo .pane.jv .pane-tag{color:#e8b95c}html.dark .duo .pane.jv pre{color:#e0c585}html.dark .duo .pane.ts pre{color:#9cc4ff}html.dark .sim-wrap{background:linear-gradient(135deg,#22252ecc,#181a2199)}html.dark .sim-toolbar select,html.dark .sim-btn{background:#ffffff14}html.dark .sim-code,html.dark .sim-panel{background:#ffffff0d}html.dark .sim-item{background:#ffffff17}html.dark .pcard,html.dark .rcard{background:#ffffff0f;box-shadow:none}html.dark .type-badge{color:#d0a4ff}html.dark .verdict.ok{color:#6fdc8c}html.dark .verdict.err{color:#ff8fa3}html.dark .pcard.pc-pending .pc-state{color:#e8c375}html.dark .pcard.pc-fulfilled .pc-state{color:#6fdc8c}html.dark .pcard.pc-rejected .pc-state{color:#ff8fa3}html.dark .rcard.root .pc-name{color:#d0a4ff}html.dark #sync-box{border-top-color:#ffffff29}html.dark .sync-code,html.dark .sync-btn,html.dark .sync-import{background:#ffffff14}html.dark .sync-btn:hover{background:#ffffff29}html.dark #search-input{background:#ffffff14}html.dark .sr-item{background:#ffffff0f}html.dark .toc-link:hover{background:#ffffff14}html.dark .toc-link.active{background:#2f6fdb24}html.dark #theme-toggle{background:#ffffff14}html.dark input::placeholder,html.dark textarea::placeholder{color:var(--faint)}@media print{.brandbar,#sidebar,.tabs,.toc,.copy-btn,#nav-toggle,.quiz-opt,.quiz-area button,.quiz-area textarea,.quiz-area input,.quiz-retry,#done-btn,.ch-nav{display:none!important}body{background:#fff!important;color:#000!important;font-size:12pt}body:before{display:none!important}.shell{display:block}#main{padding:0}.column,.column.has-toc{max-width:none}.read,.read h3,.read h4,.read strong,.quiz-q,.hero h1,.ch-title-row h1{color:#000!important}.read pre,.quiz-card,.quiz-code,.fourq div,.duo .pane .pane-tag,details.primer,details.refs,.worldview,.warn-box,.steps,p.tip,p.soul,p.punch,blockquote.spec,.sim-wrap{background:none!important;box-shadow:none!important;border-radius:0!important;border-color:#999!important;color:#000!important}.read th,.read td,.read td:first-child,.read td:last-child{background:none!important;color:#000!important}.read code{color:#000!important;background:none!important}.read pre{white-space:pre-wrap;word-break:break-word;overflow:visible}pre,blockquote,.quiz-card,table{page-break-inside:avoid}details.primer>*,details.refs>*{display:block!important}.read a,details.refs a{color:#000!important;text-decoration:underline}}