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solid var(--line)}.inc .i{width:15px;height:15px;color:var(--k)}.adv{border-top:1px solid var(--line)}.adv-toggle{display:flex;align-items:center;gap:12px;width:100%;padding:15px 22px;text-align:left;transition:background .15s}.adv-toggle:hover{background:var(--hover)}.adv-toggle .i{color:var(--muted)}.adv-toggle .t{flex:1;min-width:0;display:grid;line-height:1.35}.adv-toggle strong{font-size:13.5px;font-weight:600}.adv-toggle small{font-size:12.5px;color:var(--faint);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.adv-toggle .caret{transition:transform .3s var(--ease)}.adv-toggle[aria-expanded=true] .caret{transform:rotate(180deg)}.adv-toggle .count{font-size:11.5px;font-weight:600;color:var(--accent);background:var(--accent-soft);padding:2px 8px;border-radius:99px}.adv-panel{display:grid;grid-template-rows:0fr;transition:grid-template-rows .38s var(--ease)}.adv-panel.open{grid-template-rows:1fr}.adv-panel>div{overflow:hidden;min-height:0}.adv-panel:not(.open)>div{visibility:hidden;transition:visibility 0s .38s}.adv-inner{display:grid;gap:18px;padding:4px 22px 22px}.adv-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px 18px}.adv-grid .wide{grid-column:1/-1}.toggle-row{display:flex;align-items:center;gap:14px;padding:12px 14px;border-radius:13px;background:var(--surface-2);border:1px solid var(--line);cursor:pointer}.toggle-row .t{flex:1;display:grid;line-height:1.35}.toggle-row strong{font-size:13.5px;font-weight:600}.toggle-row small{font-size:12.5px;color:var(--muted)}.switch{position:relative;width:40px;height:24px;border-radius:99px;background:var(--raised);box-shadow:inset 0 0 0 1px var(--line-2);transition:background .2s;flex-shrink:0}.switch:after{content:"";position:absolute;top:3px;left:3px;width:18px;height:18px;border-radius:50%;background:#fff;box-shadow:0 2px 5px rgba(0,0,0,.3);transition:transform .3s var(--spring)}input:checked+.switch{background:var(--primary)}input:checked+.switch:after{transform:translateX(16px)}input:focus-visible+.switch{outline:2px solid var(--accent);outline-offset:2px}.gen-foot{display:flex;align-items:center;gap:16px;padding:16px 18px 16px 22px;border-top:1px solid var(--line);background:color-mix(in srgb,var(--surface-2) 55%,var(--surface))}.gen-sum{flex:1;min-width:0;display:grid;gap:2px}.gen-sum strong{font-size:13.5px;font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.gen-sum small{display:inline-flex;align-items:center;gap:6px;font-size:12.5px;color:var(--faint)}.gen-sum small .i{width:14px;height:14px}.gen-foot .btn-primary .i{transition:transform .3s var(--spring)}.gen-foot .btn-primary:hover .i{transform:translateX(3px)}.gen-run{padding:26px 26px 24px}.gen-run-head{display:flex;align-items:center;gap:14px}.gen-run-head .t{flex:1;min-width:0}.gen-run-head 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.st:before{content:"";width:18px;height:18px;border-radius:50%;border:2px solid var(--line-2);border-top-color:var(--k);animation:spin .75s linear infinite}.steps li.done{color:var(--text-2)}.steps li.done .st{background:var(--k);border-color:var(--k);color:#fff}.steps li.done .st .i{width:13px;height:13px;stroke-width:2.6}.steps li.done .st .i path{stroke-dasharray:1;animation:draw .35s var(--ease) both}.gen-done{padding:26px}.gen-done-head{display:flex;align-items:flex-start;gap:14px}.gen-done-head .check{width:44px;height:44px;border-radius:50%;display:grid;place-items:center;background:var(--ok-soft);color:var(--ok);flex-shrink:0;animation:pop .45s var(--spring) both}.gen-done-head .check .i{width:22px;height:22px;stroke-width:2.4}.gen-done-head .check .i path{stroke-dasharray:1;animation:draw .5s .15s var(--ease) both}.gen-done-head h2{font-size:19px;letter-spacing:-.022em}.gen-done-head p{font-size:13.5px;color:var(--muted);margin-top:3px}.gen-preview{margin:20px 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.n{font-size:12px;font-weight:600;color:var(--faint);width:18px;padding-top:2px;font-variant-numeric:tabular-nums}.fc-row .t{flex:1;display:grid;gap:3px}.fc-row .q{font-size:14px;font-weight:550}.fc-row .a{font-size:13px;color:var(--muted)}.tool-recent{margin-top:36px}.list{display:grid}.row-link{display:flex;align-items:center;gap:14px;padding:12px 10px;margin:0 -10px;border-radius:12px;text-align:left;transition:background .15s}.row-link:hover{background:var(--hover)}.row-link .t{flex:1;min-width:0;display:grid;gap:1px}.row-link strong{font-size:14px;font-weight:550;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.row-link small{font-size:12.5px;color:var(--muted)}.row-link>.i{color:var(--faint)}.row-link+.row-link{box-shadow:0 -1px 0 var(--line)}.explore-dox{display:flex;align-items:center;gap:16px;width:100%;margin-top:18px;padding:16px 18px;border-radius:18px;text-align:left;border:1px solid var(--line);background:radial-gradient(120% 140% at 0 0,var(--accent-soft),transparent 55%),var(--surface);transition:border-color .2s,transform .2s var(--ease)}.explore-dox:hover{border-color:var(--accent-line);transform:translateY(-1px)}.explore-dox .t{flex:1;display:grid;gap:2px}.explore-dox strong{font-size:14.5px;font-weight:600}.explore-dox small{font-size:13px;color:var(--muted)}.pick-list{display:grid;gap:6px}.pick{display:flex;align-items:center;gap:12px;padding:10px 12px;border-radius:12px;border:1px solid var(--line);text-align:left;transition:background .15s,border-color .15s}.pick:hover{background:var(--hover)}.pick[aria-pressed=true]{border-color:var(--accent-line);background:var(--accent-softer)}.pick .t{flex:1;min-width:0;display:grid}.pick strong{font-size:13.5px;font-weight:550;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.pick small{font-size:12px;color:var(--muted)}.pick .box{width:20px;height:20px;border-radius:6px;border:1.5px solid var(--line-3);display:grid;place-items:center;color:#fff;transition:all .15s}.pick[aria-pressed=true] .box{background:var(--primary);border-color:var(--primary)}.pick .box .i{width:13px;height:13px;stroke-width:2.6;opacity:0}.pick[aria-pressed=true] .box .i{opacity:1}@media (max-width:760px){.tool-head{gap:12px;margin-bottom:18px;flex-wrap:wrap}.tool-head .kt{width:44px;height:44px;border-radius:13px}.tool-head h1{font-size:23px}.tool-head p{font-size:13.5px}.tool-head .btn{display:none}.gen{border-radius:20px}.gen-src{padding:16px 16px 10px}.gen-basic{grid-template-columns:1fr;padding:16px}.adv-toggle{padding:14px 16px}.adv-inner{padding:4px 16px 18px}.adv-grid{grid-template-columns:1fr}.gen-foot{position:sticky;bottom:0;flex-direction:column;align-items:stretch;padding:14px 16px calc(14px + env(safe-area-inset-bottom,0px));gap:12px}.gen-foot .btn-primary{width:100%}.gen-done,.gen-run{padding:20px 16px}.seg-wrap .seg{width:100%}.seg-wrap .seg button{flex:1;justify-content:center;padding:0 8px}}.reader{position:fixed;inset:0;z-index:60;display:flex;flex-direction:column;background:var(--bg);animation:readerIn .42s var(--ease) both;padding-top:env(safe-area-inset-top,0)}.reader.closing{animation:readerOut .28s var(--ease) both}@keyframes readerIn{0%{opacity:0;transform:translateY(18px) scale(.995)}to{opacity:1;transform:none}}@keyframes readerOut{to{opacity:0;transform:translateY(12px)}}.r-top{flex-shrink:0;border-bottom:1px solid var(--line);background:color-mix(in srgb,var(--bg) 88%,transparent);backdrop-filter:blur(14px)}.r-bar{gap:10px;height:60px;padding:0 16px;max-width:1240px;margin:0 auto}.r-bar,.r-title{display:flex;align-items:center}.r-title{flex:1;min-width:0;gap:12px}.r-title .t{min-width:0;display:grid;line-height:1.25}.r-title strong{font-size:14.5px;font-weight:600}.r-title small,.r-title strong{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.r-title small{font-size:12px;color:var(--faint)}.r-actions{display:flex;align-items:center;gap:4px}.r-tabs{display:flex;justify-content:center;gap:2px;padding:0 16px 10px;overflow-x:auto;scrollbar-width:none}.r-tabs::-webkit-scrollbar{display:none}.r-tab{position:relative;display:inline-flex;align-items:center;gap:7px;height:34px;padding:0 13px;border-radius:10px;font-size:13.5px;font-weight:550;color:var(--muted);white-space:nowrap;transition:color .15s,background .15s}.r-tab:hover{color:var(--text);background:var(--hover)}.r-tab[aria-selected=true]{color:var(--text);background:var(--surface-2);box-shadow:inset 0 0 0 1px var(--line)}.r-tab .n{font-size:11.5px;font-weight:600;color:var(--faint);font-variant-numeric:tabular-nums}.r-tab .dotx{width:6px;height:6px;border-radius:50%;background:var(--warn)}.r-progress{height:2px;background:transparent;position:relative}.r-progress i{position:absolute;left:0;top:0;bottom:0;background:linear-gradient(90deg,var(--primary),var(--accent));transition:width .3s var(--ease)}.r-body{flex:1;min-height:0;overflow-y:auto;scroll-behavior:smooth}.r-foot{flex-shrink:0;border-top:1px solid var(--line);background:var(--bg);padding:12px 16px calc(12px + env(safe-area-inset-bottom,0px))}.r-foot-inner{max-width:760px;margin:0 auto;display:flex;align-items:center;gap:10px}.r-foot-inner .grow{flex:1}.r-foot-inner .t{display:grid;line-height:1.3}.r-foot-inner .t strong{font-size:13.5px}.r-foot-inner .t small{font-size:12px;color:var(--muted)}.dox-layout{display:grid;grid-template-columns:minmax(0,1fr) 260px;gap:56px;max-width:1080px;margin:0 auto;padding:44px 32px 120px}.dox-art{max-width:700px;font-size:var(--study-size)}.dox-art .eyebrow{color:var(--k,var(--accent))}.dox-art h1{font-size:38px;line-height:1.1;letter-spacing:-.038em;margin:14px 0 16px}.dox-lead{font-size:1.15em;line-height:1.65;color:var(--text-2)}.dox-stats{display:grid;grid-template-columns:repeat(4,1fr);margin:30px 0 8px;border-radius:16px;border:1px solid var(--line);overflow:hidden}.dox-stats div{padding:14px 16px;display:grid;gap:2px}.dox-stats div+div{border-left:1px solid var(--line)}.dox-stats small{font-size:12px;color:var(--faint)}.dox-stats strong{font-size:19px;font-weight:600;letter-spacing:-.02em;font-variant-numeric:tabular-nums}.dox-sec{padding-top:40px;scroll-margin-top:20px}.dox-sec .num{font-size:12px;font-weight:650;letter-spacing:.08em;color:var(--k,var(--accent));font-variant-numeric:tabular-nums}.dox-sec h2{font-size:24px;letter-spacing:-.028em;line-height:1.2;margin:8px 0 14px}.dox-sec p{font-size:1.06em;line-height:1.8;color:var(--text-2)}.doubt{display:inline-flex;align-items:center;gap:7px;margin-top:14px;height:30px;padding:0 11px;border-radius:9px;font-size:12.5px;font-weight:550;color:var(--faint);border:1px solid var(--line);transition:all .2s}.doubt:hover{color:var(--text);border-color:var(--line-3)}.doubt[aria-pressed=true]{color:var(--warn);border-color:transparent;background:var(--warn-soft)}.doubt .i{width:14px;height:14px}.flow{margin:24px 0 6px;padding:22px 20px 16px;border-radius:18px;background:var(--surface);border:1px solid var(--line);overflow-x:auto}.flow-row{display:flex;align-items:center;gap:0;min-width:520px}.flow-node{flex:1;display:grid;gap:4px;justify-items:center;text-align:center;padding:14px 10px;border-radius:14px;background:var(--surface-2);border:1px solid var(--line-2);font-size:13.5px;font-weight:600;position:relative}.flow-node small{font-size:11px;font-weight:600;letter-spacing:.06em;color:var(--faint)}.flow-node:first-child{box-shadow:inset 0 2px 0 color-mix(in srgb,var(--k-case) 70%,transparent)}.flow-node:nth-child(3){box-shadow:inset 0 2px 0 color-mix(in srgb,var(--accent) 70%,transparent)}.flow-node:nth-child(5){box-shadow:inset 0 2px 0 color-mix(in srgb,var(--k-fc) 70%,transparent)}.flow-arrow{width:44px;flex-shrink:0;height:2px;position:relative;background:linear-gradient(90deg,var(--line-3) 50%,transparent 0) 0 0/8px 2px repeat-x;animation:flowdash 1s linear infinite}.flow-arrow:after{content:"";position:absolute;right:0;top:-4px;border:5px solid transparent;border-left:6px solid var(--line-3);border-right:0}@keyframes flowdash{to{background-position:8px 0}}.dox-sec .flow-note{margin-top:12px;font-size:12.5px;line-height:1.5;color:var(--muted);text-align:center}.cmp{width:100%;margin:24px 0 4px;border-collapse:separate;border-spacing:0;font-size:14px;border:1px solid var(--line);border-radius:14px;overflow:hidden}.cmp th{text-align:left;font-size:11.5px;font-weight:600;letter-spacing:.06em;text-transform:uppercase;color:var(--faint);padding:11px 14px;background:var(--surface-2)}.cmp td{padding:12px 14px;border-top:1px solid var(--line);color:var(--text-2)}.cmp td:first-child{font-weight:600;color:var(--text)}.callout{display:flex;gap:12px;margin-top:28px;padding:16px 18px;border-radius:16px;background:var(--warn-soft);color:var(--text)}.callout .i{color:var(--warn);margin-top:2px}.callout strong{display:block;font-size:13px;margin-bottom:2px;color:var(--warn)}.callout p{font-size:14.5px;line-height:1.65;color:var(--text-2)}.dox-next{display:grid;grid-template-columns:repeat(2,1fr);gap:12px;margin-top:40px}.next-card{display:flex;align-items:center;gap:14px;padding:16px;border-radius:16px;background:var(--surface);border:1px solid var(--line);text-align:left;transition:border-color .2s,transform .2s var(--ease)}.next-card:hover{border-color:color-mix(in srgb,var(--k) 40%,var(--line));transform:translateY(-1px)}.next-card .t{flex:1;display:grid;gap:2px}.next-card strong{font-size:14px;font-weight:600}.next-card small{font-size:12.5px;color:var(--muted)}.dox-aside{position:sticky;top:24px;align-self:start;display:grid;gap:22px}.toc{display:grid;gap:2px}.toc .eyebrow{margin-bottom:8px}.toc button{display:flex;align-items:center;gap:10px;padding:7px 10px;margin-left:-10px;border-radius:9px;font-size:13.5px;color:var(--muted);text-align:left;transition:background .15s,color .15s}.toc button:hover{background:var(--hover);color:var(--text)}.toc button.on{color:var(--text)}.toc button .n{font-size:11.5px;font-weight:600;color:var(--faint);font-variant-numeric:tabular-nums;width:18px}.toc button.on .n{color:var(--accent)}.aside-card{padding:16px;border-radius:16px;border:1px solid var(--line);background:var(--surface);display:grid;gap:12px}.aside-card .row{display:flex;align-items:center;justify-content:space-between;gap:10px;font-size:13px}.aside-card .row span{color:var(--muted)}.aside-card .row strong{font-weight:600;font-variant-numeric:tabular-nums}.quiz{max-width:720px;margin:0 auto;padding:40px 24px 60px}.quiz-top{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:14px}.quiz-top .eyebrow{color:var(--k,var(--accent))}.segs{display:flex;gap:5px;margin-bottom:30px}.segs i{flex:1;height:4px;border-radius:9px;background:var(--raised);transition:background .3s}.segs i.ok{background:var(--ok)}.segs i.bad{background:var(--bad)}.segs i.cur{background:var(--accent)}.stem{font-size:22px;line-height:1.4;letter-spacing:-.022em;font-weight:600;margin-bottom:24px}.opts{display:grid;gap:10px}.opt{display:flex;align-items:center;gap:14px;width:100%;min-height:58px;padding:12px 16px;border-radius:15px;border:1px solid var(--line-2);background:var(--surface);text-align:left;font-size:15px;line-height:1.45;transition:border-color .18s,background .18s,transform .18s var(--ease)}.opt:hover:not(:disabled){border-color:var(--line-3);transform:translateX(2px)}.opt 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