@import"https://fonts.googleapis.com/css2?family=Ma+Shan+Zheng&family=Noto+Sans+SC:wght@400;500;600;700;800&display=swap";:root{color:#173352;background:#fbf7ed;font-family:Noto Sans SC,PingFang SC,Microsoft YaHei,sans-serif;font-synthesis:none;text-rendering:optimizeLegibility;--ink: #173352;--ink-soft: #466077;--paper: #fffaf0;--paper-deep: #f5eedf;--orange: #e89432;--coral: #e87775;--green: #8cc8a8;--blue: #8ebae5;--purple: #b79bd7;--yellow: #f2cc67;--line: rgba(23, 51, 82, .25);--shadow: 4px 5px 0 rgba(23, 51, 82, .1)}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;min-width:320px;min-height:100vh}body:before{content:"";position:fixed;inset:0;z-index:-2;background:radial-gradient(circle at 12% 18%,rgba(232,148,50,.08),transparent 20%),radial-gradient(circle at 82% 26%,rgba(142,186,229,.1),transparent 23%),radial-gradient(circle at 56% 82%,rgba(140,200,168,.08),transparent 28%),#fbf7ed}body:after{content:"";position:fixed;inset:0;z-index:-1;pointer-events:none;opacity:.28;background-image:url("data:image/svg+xml,%3Csvg viewBox='0 0 160 160' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.8' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='.09'/%3E%3C/svg%3E")}a{color:inherit;text-decoration:none}button,input,select,textarea{font:inherit}button,select{cursor:pointer}button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline:3px solid rgba(232,148,50,.45);outline-offset:3px}img{max-width:100%}.site-shell{min-height:100vh;display:flex;flex-direction:column}.site-header{width:min(1180px,calc(100% - 40px));min-height:82px;margin:0 auto;display:flex;align-items:center;justify-content:space-between;border-bottom:1.5px dashed rgba(23,51,82,.24);position:relative;z-index:20}.brand{display:flex;align-items:center;gap:10px}.brand-star{display:grid;place-items:center;width:42px;height:42px;color:var(--orange);font:38px/1 Ma Shan Zheng,cursive;transform:rotate(-8deg)}.brand strong{display:block;font:29px/1 Ma Shan Zheng,Kaiti SC,cursive;letter-spacing:2px}.brand small{display:block;margin-top:5px;font-size:9px;letter-spacing:2.8px;color:var(--ink-soft)}.main-nav{display:flex;align-items:center;gap:7px}.nav-link{display:flex;align-items:center;gap:7px;padding:10px 13px;border-radius:9px 8px 11px 7px;color:var(--ink-soft);font-size:14px;font-weight:600;transition:.16s ease}.nav-link:hover{color:var(--ink);background:#ffffff7a}.nav-link.active{color:var(--ink);background:#f2cc6761;transform:rotate(-1deg)}.menu-button{display:none;border:0;background:none;color:var(--ink);padding:8px}.site-main{flex:1}.site-footer{width:min(1180px,calc(100% - 40px));margin:60px auto 0;padding:24px 0 32px;border-top:1.5px dashed rgba(23,51,82,.24);display:flex;justify-content:space-between;gap:20px;font-size:13px;color:var(--ink-soft)}.cloud-note{display:flex;align-items:center;gap:7px}.page{width:min(1180px,calc(100% - 40px));margin:0 auto;padding-top:36px}.paper-panel{background:#fffaf0e0;border:1.6px solid rgba(23,51,82,.5);border-radius:13px 9px 15px 10px;box-shadow:var(--shadow);position:relative}.paper-panel:after{content:"";position:absolute;inset:4px -4px -4px 4px;border:1px solid rgba(23,51,82,.1);border-radius:inherit;pointer-events:none}.eyebrow{display:inline-flex;align-items:center;gap:7px;width:fit-content;padding:6px 13px;background:linear-gradient(178deg,transparent 10%,rgba(242,204,103,.64) 11%,rgba(242,204,103,.64) 88%,transparent 89%);color:#8a5718;font-size:12px;font-weight:800;letter-spacing:1px}.button{min-height:44px;padding:10px 18px;border:1.5px solid var(--ink);border-radius:9px 7px 10px 6px;display:inline-flex;align-items:center;justify-content:center;gap:8px;font-weight:700;transition:.16s ease}.button:hover:not(:disabled){transform:translateY(-2px) rotate(-.5deg);box-shadow:3px 4px #17335226}.button:disabled{opacity:.45;cursor:not-allowed}.button.primary{color:#fffaf0;background:var(--ink)}.button.secondary{color:var(--ink);background:#ffffff61}.button.ink{color:#fffaf0;background:var(--ink);white-space:nowrap}.button.small{min-height:38px;padding:7px 13px;font-size:13px}.text-link{display:inline-flex;align-items:center;gap:5px;color:#b76520;font-weight:700}.back-link{display:inline-flex;align-items:center;gap:6px;margin-bottom:20px;color:var(--ink-soft);font-weight:600;font-size:14px}.back-link:hover{color:var(--orange)}.hero{min-height:500px;padding:62px 68px;overflow:hidden;display:grid;grid-template-columns:1.15fr .85fr;align-items:center}.hero:before{content:"";position:absolute;width:440px;height:280px;right:-40px;bottom:-95px;background:#8cc8a838;border-radius:50%;transform:rotate(-8deg)}.hero-copy{position:relative;z-index:2}.hero h1{margin:18px 0;font:700 clamp(53px,5.3vw,72px)/1.08 "Ma Shan Zheng","Kaiti SC",cursive;letter-spacing:2px}.hero-title-line{white-space:nowrap}.hero h1 em{font-style:normal;color:var(--orange);position:relative;white-space:nowrap}.hero h1 em:after{content:"";position:absolute;left:-2%;right:-4%;bottom:-4px;height:9px;border-bottom:4px solid rgba(232,119,117,.75);border-radius:50%;transform:rotate(-1deg)}.hero-copy>p{max-width:560px;margin:0;color:var(--ink-soft);font-size:17px;line-height:1.9}.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:29px}.hero-art{position:relative;min-height:360px;display:grid;place-items:center}.hero-art img{position:relative;z-index:2;width:min(370px,90%);filter:drop-shadow(6px 8px 0 rgba(23,51,82,.08))}.speech-bubble{position:absolute;z-index:3;right:-6px;top:12px;padding:12px 18px;background:#fffef8;border:1.5px solid var(--ink);border-radius:50%;font:18px/1.4 Ma Shan Zheng,cursive;text-align:center;transform:rotate(4deg)}.speech-bubble:after{content:"";position:absolute;bottom:-12px;left:28px;width:18px;height:18px;background:#fffef8;border-right:1.5px solid var(--ink);transform:rotate(43deg)}.orbit{position:absolute;color:var(--orange);font-size:30px;z-index:4}.orbit-one{left:9%;top:8%;transform:rotate(-12deg)}.orbit-two{right:6%;bottom:12%;color:var(--coral)}.stats-strip{margin-top:22px;display:grid;grid-template-columns:repeat(4,1fr);background:#ffffff5c;border-top:1px dashed var(--line);border-bottom:1px dashed var(--line)}.stats-strip>div{padding:21px 17px;display:flex;align-items:center;justify-content:center;gap:12px;border-right:1px dashed var(--line)}.stats-strip>div:last-child{border-right:0}.stats-strip svg{color:var(--orange)}.stats-strip span{display:flex;align-items:baseline;gap:6px;color:var(--ink-soft);font-size:13px}.stats-strip strong{color:var(--ink);font-size:23px}.section-block{margin-top:64px}.section-heading{margin-bottom:24px;display:flex;align-items:end;justify-content:space-between;gap:40px}.section-heading.compact{align-items:center}.section-kicker{color:var(--orange);font-size:11px;letter-spacing:2.4px;font-weight:800}.section-heading h2{margin:7px 0 0;font:38px/1.2 Ma Shan Zheng,Kaiti SC,cursive;letter-spacing:1px}.section-heading>p{max-width:400px;margin:0;color:var(--ink-soft);line-height:1.8;font-size:14px}.track-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}.track-card{min-height:300px;position:relative;overflow:hidden;padding:29px;border:1.5px solid rgba(23,51,82,.48);border-radius:9px 13px 8px 14px;box-shadow:var(--shadow);transition:.18s ease}.track-card:hover{transform:translateY(-5px) rotate(-.4deg);box-shadow:7px 9px #1733521f}.track-card-agent{background:#e9f5ed}.track-card-rag{background:#edf3fb;transform:rotate(.5deg)}.track-card-harness{background:#fff1db;transform:rotate(-.4deg)}.track-card>div{position:relative;z-index:2;width:72%}.track-number{position:absolute;top:18px;right:21px;color:#1733523d;font:35px/1 Ma Shan Zheng,cursive}.track-card small{color:var(--ink-soft);font-weight:800;letter-spacing:1.7px}.track-card h3{margin:7px 0 10px;font:33px/1.2 Ma Shan Zheng,cursive}.track-card p{margin:0;color:var(--ink-soft);font-size:13px;line-height:1.75}.track-card img{position:absolute;z-index:1;right:-22px;bottom:-8px;width:48%;max-height:180px;object-fit:contain}.track-count{display:inline-flex;align-items:center;gap:6px;margin-top:23px;font-size:13px;font-weight:800}.knowledge-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:21px}.knowledge-card{width:100%;margin:0;padding:22px;background:#fffef8e6;border:1.4px solid rgba(23,51,82,.4);border-radius:8px 12px 9px 13px;box-shadow:3px 4px #17335214;position:relative;transition:.17s ease}.knowledge-card:nth-child(4n+2){transform:rotate(.35deg)}.knowledge-card:nth-child(4n+3){transform:rotate(-.3deg)}.knowledge-card:hover{transform:translateY(-3px);box-shadow:5px 7px #1733521c}.knowledge-card:before{content:"";position:absolute;left:-1px;top:31px;width:5px;height:58px;border-radius:0 4px 4px 0;background:var(--green)}.knowledge-card.track-rag:before{background:var(--blue)}.knowledge-card.track-harness:before{background:var(--orange)}.card-topline{display:flex;align-items:center;justify-content:space-between}.difficulty-badge{padding:4px 9px;background:#b79bd738;border-radius:4px;font-size:11px;font-weight:800}.mastery-dot{display:inline-flex;color:#99a6ae}.mastery-dot.mastered{color:#4e9b73}.mastery-dot.review{color:var(--orange)}.mastery-dot.viewed{color:var(--blue)}.knowledge-card h3{margin:16px 0 10px;font-size:19px;line-height:1.45}.knowledge-card>p{margin:0;color:var(--ink-soft);font-size:13px;line-height:1.76;display:-webkit-box;-webkit-line-clamp:4;-webkit-box-orient:vertical;overflow:hidden}.tag-row{display:flex;flex-wrap:wrap;gap:7px;margin-top:15px}.tag-row span{font-size:11px;color:#6a7188;background:#b79bd721;padding:3px 6px;border-radius:4px}.card-link{margin-top:18px;padding-top:14px;border-top:1px dashed var(--line);display:flex;align-items:center;justify-content:space-between;color:#a7581f;font-size:13px;font-weight:800}.featured-grid{grid-template-columns:repeat(3,minmax(0,1fr))}.tip-banner{margin-top:60px;padding:20px 24px;display:flex;align-items:center;gap:19px;background:#fffbebd4;border:1.5px solid rgba(23,51,82,.4);border-radius:12px 8px 14px 9px;box-shadow:var(--shadow)}.tip-banner p{flex:1;margin:0;line-height:1.7;font-size:14px}.tip-label{position:relative;font:23px/1 Ma Shan Zheng,cursive;color:#4f7b5f}.tip-label:before{content:"";position:absolute;z-index:-1;inset:-8px -12px;border:2px solid #4f7b5f;border-radius:50%;transform:rotate(-8deg)}.page-intro{padding:30px 0 26px}.page-intro h1{margin:12px 0 8px;font:58px/1.1 Ma Shan Zheng,cursive}.page-intro p{margin:0;color:var(--ink-soft)}.filter-panel{padding:18px;display:flex;gap:17px;align-items:end;margin-bottom:24px}.search-field{flex:1;min-width:280px;height:46px;padding:0 13px;display:flex;align-items:center;gap:9px;border:1.4px solid rgba(23,51,82,.38);border-radius:9px;background:#ffffff8c}.search-field input{flex:1;min-width:0;border:0;outline:0;background:transparent;color:var(--ink)}.search-field button{display:grid;place-items:center;border:0;background:transparent;color:var(--ink-soft)}.filter-groups{display:flex;gap:10px}.filter-groups label,.setup-fields label{display:grid;gap:6px;color:var(--ink-soft);font-size:11px;font-weight:700}select{min-width:120px;height:42px;padding:0 32px 0 11px;color:var(--ink);border:1.3px solid rgba(23,51,82,.35);border-radius:7px;background:#fffdf7}.result-summary{margin-bottom:14px;color:var(--ink-soft);font-size:13px}.result-summary strong{color:var(--ink);font-size:20px}.article-shell{max-width:910px;margin:0 auto;background:#fffdf7e0;border:1.5px solid rgba(23,51,82,.42);border-radius:11px;box-shadow:var(--shadow);overflow:hidden}.article-header{position:relative;padding:54px 62px 46px;background:#8cc8a829;border-bottom:1px dashed var(--line)}.article-shell.track-rag .article-header{background:#8ebae52e}.article-shell.track-harness .article-header{background:#e8943226}.article-meta{display:flex;gap:8px}.article-meta span{padding:4px 9px;font-size:10px;font-weight:800;letter-spacing:1px;background:#ffffff8c;border-radius:4px}.article-header h1{margin:18px 0 14px;font:47px/1.22 Ma Shan Zheng,Kaiti SC,cursive}.article-header>p{max-width:720px;margin:0;color:var(--ink-soft);font-size:15px;line-height:1.85}.keypoints-note{margin:34px 62px;padding:21px 24px;background:#f2cc672b;border:1px solid rgba(232,148,50,.35);border-radius:8px 12px 8px 11px}.keypoints-note h2{margin:0 0 12px;display:flex;align-items:center;gap:7px;font-size:16px}.keypoints-note ul{margin:0;padding-left:22px;columns:2;color:var(--ink-soft);font-size:13px;line-height:1.8}.markdown-body{padding:5px 62px 45px;color:#263e57;line-height:1.9;font-size:15px;overflow-wrap:anywhere}.markdown-body h1,.markdown-body h2,.markdown-body h3,.markdown-body h4{color:var(--ink);line-height:1.4}.markdown-body h2{margin:42px 0 15px;padding-bottom:9px;border-bottom:2px solid rgba(232,119,117,.25);font-size:27px}.markdown-body h3{margin:30px 0 10px;font-size:21px}.markdown-body h4{font-size:17px}.markdown-body p{margin:12px 0}.markdown-body blockquote{margin:20px 0;padding:14px 18px;color:var(--ink-soft);background:#8ebae51c;border-left:4px solid var(--blue);border-radius:0 8px 8px 0}.markdown-body code{padding:2px 5px;color:#9b4b27;background:#f6eddf;border-radius:4px;font-family:SFMono-Regular,Consolas,monospace;font-size:.9em}.markdown-body pre{padding:18px;overflow-x:auto;background:#142d48;color:#f8f1e2;border-radius:9px;box-shadow:3px 4px #1733521f}.markdown-body pre code{padding:0;color:inherit;background:none}.markdown-body table{width:100%;margin:20px 0;border-collapse:collapse;font-size:13px}.markdown-body th,.markdown-body td{padding:10px;border:1px solid rgba(23,51,82,.22);text-align:left}.markdown-body th{background:#8cc8a82b}.markdown-body img{display:block;max-height:600px;margin:24px auto;object-fit:contain;border-radius:7px;box-shadow:3px 4px #17335214}.zoomable-image-trigger{position:relative;display:block;width:fit-content;max-width:100%;margin:24px auto;padding:0;color:#fff;background:transparent;border:0;border-radius:7px;cursor:zoom-in}.zoomable-image-trigger img{margin:0;transition:filter .16s ease,transform .16s ease}.zoomable-image-trigger:hover img,.zoomable-image-trigger:focus-visible img{filter:brightness(.86);transform:translateY(-1px)}.zoomable-image-hint{position:absolute;right:10px;bottom:10px;display:inline-flex;align-items:center;gap:5px;padding:6px 9px;color:#fff;background:#0a1d2fc7;border:1px solid rgba(255,255,255,.42);border-radius:6px;box-shadow:0 2px 8px #05101b3d;font-size:11px;font-weight:700;line-height:1;opacity:0;transform:translateY(4px);transition:.16s ease;pointer-events:none}.zoomable-image-hint svg{width:14px;height:14px}.zoomable-image-trigger:hover .zoomable-image-hint,.zoomable-image-trigger:focus-visible .zoomable-image-hint{opacity:1;transform:translateY(0)}.image-lightbox{position:fixed;inset:0;z-index:1000;display:grid;grid-template-rows:64px minmax(0,1fr) 44px;padding:0 24px;color:#fff;background:#071422f0;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px)}.image-lightbox-toolbar{align-self:center;justify-self:center;display:flex;align-items:center;gap:7px;padding:5px;background:#ffffff1a;border:1px solid rgba(255,255,255,.2);border-radius:10px}.image-lightbox-toolbar button,.image-lightbox-close{display:grid;place-items:center;width:36px;height:36px;padding:0;color:#fff;background:transparent;border:0;border-radius:7px}.image-lightbox-toolbar button:hover:not(:disabled),.image-lightbox-toolbar button:focus-visible,.image-lightbox-close:hover,.image-lightbox-close:focus-visible{background:#ffffff29}.image-lightbox-toolbar button:disabled{opacity:.34;cursor:not-allowed}.image-lightbox-toolbar svg,.image-lightbox-close svg{width:19px;height:19px}.image-lightbox-toolbar output{min-width:50px;text-align:center;font-size:12px;font-variant-numeric:tabular-nums}.image-lightbox-close{position:absolute;top:14px;right:18px}.image-lightbox-stage{min-width:0;min-height:0;overflow:hidden;display:flex;align-items:center;justify-content:center;border-radius:10px;cursor:zoom-in;touch-action:none}.image-lightbox-stage.is-zoomed{cursor:grab}.image-lightbox-stage.is-dragging{cursor:grabbing}.image-lightbox-image{max-width:100%;max-height:100%;object-fit:contain;-webkit-user-select:none;user-select:none;-webkit-user-drag:none;transform-origin:center;will-change:transform;transition:transform .14s ease-out}.image-lightbox-stage.is-dragging .image-lightbox-image{transition:none}.image-lightbox-help{align-self:center;margin:0;text-align:center;color:#ffffffb8;font-size:12px}.image-lightbox-help span{margin:0 7px;color:#ffffff5c}.markdown-body a{display:inline-flex;align-items:center;gap:3px;color:#9a551d;text-decoration:underline}.source-box{margin:0 62px 48px;padding:20px;border:1px dashed rgba(23,51,82,.35);border-radius:8px;background:#ffffff59}.source-box h2{margin:0 0 12px;display:flex;align-items:center;gap:7px;font-size:16px}.source-box p{margin:8px 0;display:flex;gap:9px;font-size:12px;color:var(--ink-soft)}.source-box p strong{color:var(--ink)}.related-section{max-width:910px;margin-left:auto;margin-right:auto}.practice-setup{padding:34px}.mode-picker{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}.mode-card{position:relative;min-height:135px;padding:25px;display:grid;gap:7px;text-align:left;color:var(--ink);background:#ffffff59;border:1.4px solid rgba(23,51,82,.3);border-radius:10px 8px 12px 9px}.mode-card>span{position:absolute;right:16px;top:12px;color:#1733522e;font:30px Ma Shan Zheng,cursive}.mode-card strong{font:28px Ma Shan Zheng,cursive}.mode-card small{color:var(--ink-soft)}.mode-card.active{border:2px solid var(--ink);background:#f2cc6733;box-shadow:3px 4px #1733521f;transform:rotate(-.35deg)}.setup-fields{margin-top:27px;padding-top:25px;border-top:1px dashed var(--line);display:grid;grid-template-columns:repeat(3,1fr);gap:14px}.setup-fields select{width:100%}.start-button{margin:26px auto 0;display:flex;min-width:190px}.form-error,.sync-warning{padding:10px 13px;color:#9f3c32;background:#e877751f;border-radius:6px;font-size:12px}.question-page{max-width:900px}.question-progress{display:grid;grid-template-columns:auto 1fr auto;align-items:center;gap:18px;margin-bottom:18px;color:var(--ink-soft);font-size:12px}.question-progress>div{height:7px;overflow:hidden;background:#1733521a;border-radius:10px}.question-progress i{display:block;height:100%;background:var(--orange);transition:width .22s ease}.question-card{min-height:540px;padding:44px}.question-label{display:inline-block;padding:5px 10px;color:#8b591a;background:#f2cc6759;border-radius:5px;font-size:11px;font-weight:800}.question-card>h1{margin:20px 0 27px;font-size:25px;line-height:1.55}.option-list{display:grid;gap:12px}.option-button{width:100%;padding:14px 16px;display:grid;grid-template-columns:31px 1fr 20px;align-items:center;gap:12px;text-align:left;color:var(--ink);background:#ffffff85;border:1.3px solid rgba(23,51,82,.27);border-radius:8px 11px 7px 10px}.option-button>span{width:30px;height:30px;display:grid;place-items:center;border:1.2px solid rgba(23,51,82,.35);border-radius:50%;font-weight:800}.option-button p{margin:0;line-height:1.6}.option-button:hover:not(:disabled),.option-button.selected{border-color:var(--ink);background:#8ebae524}.option-button.correct{border-color:#4c9870;background:#8cc8a838}.option-button.wrong{border-color:#c95b59;background:#e877752e}.interview-answer textarea{width:100%;padding:16px;resize:vertical;color:var(--ink);border:1.4px solid rgba(23,51,82,.35);border-radius:9px;background:#ffffff94;line-height:1.8}.interview-answer small{display:block;margin-top:7px;color:var(--ink-soft)}.answer-feedback{margin-top:25px;padding:19px;border-radius:9px}.answer-feedback.good{background:#8cc8a82e;border:1px solid rgba(76,152,112,.45)}.answer-feedback.needs-work{background:#e8777521;border:1px solid rgba(201,91,89,.35)}.answer-feedback h2{margin:0 0 10px;display:flex;align-items:center;gap:8px;font-size:17px}.answer-feedback h2 strong{margin-left:auto;font-size:21px}.answer-feedback p{margin:8px 0;color:var(--ink-soft);font-size:13px;line-height:1.7}.answer-feedback details{margin-top:12px}.answer-feedback summary{cursor:pointer;font-weight:700}.source-line{padding-top:10px;border-top:1px dashed var(--line)}.question-actions{margin-top:27px;display:flex;justify-content:flex-end}.result-page{max-width:780px;padding-top:65px}.result-card{padding:55px;text-align:center;overflow:hidden}.result-art{position:absolute;width:180px;right:-20px;bottom:-20px;opacity:.55}.result-card h1{margin:15px 0;font:48px Ma Shan Zheng,cursive}.score-ring{width:150px;height:150px;margin:25px auto;display:grid;place-content:center;border:7px solid rgba(140,200,168,.45);outline:2px dashed var(--ink);outline-offset:5px;border-radius:50%;transform:rotate(-2deg)}.score-ring strong{font:55px/1 Ma Shan Zheng,cursive}.score-ring span{color:var(--ink-soft);font-size:12px}.result-card>p{color:var(--ink-soft)}.result-card .hero-actions{justify-content:center}.review-intro{display:flex;align-items:end;justify-content:space-between;gap:20px}.danger-link{display:inline-flex;align-items:center;gap:6px;padding:8px;color:#a5443f;border:0;background:transparent;font-size:12px}.review-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:15px}.review-stats>div{min-height:96px;padding:18px;display:flex;align-items:center;gap:13px;background:#fffef8a3;border:1.3px solid var(--line);border-radius:9px 12px 8px 11px}.review-stats svg{color:var(--orange)}.review-stats span{display:grid;color:var(--ink-soft);font-size:12px}.review-stats strong{color:var(--ink);font-size:25px}.wrong-list{display:grid;gap:13px}.wrong-card{padding:19px 22px;position:relative;background:#fffef8bd;border:1.3px solid var(--line);border-left:5px solid var(--green);border-radius:7px 10px 8px 11px}.wrong-card.track-rag{border-left-color:var(--blue)}.wrong-card.track-harness{border-left-color:var(--orange)}.wrong-card>span{color:var(--ink-soft);font-size:11px;font-weight:700}.wrong-card h3{margin:8px 0 12px;font-size:16px}.wrong-card a{color:#a75b22;font-size:12px;font-weight:700}.session-list{border:1.2px solid var(--line);border-radius:8px;overflow:hidden}.session-list>div{padding:13px 17px;display:grid;grid-template-columns:1fr 1fr 1fr auto;gap:15px;border-bottom:1px dashed var(--line);background:#ffffff4d;font-size:13px}.session-list>div:last-child{border-bottom:0}.session-list b{color:#a75b22}.muted-copy{color:var(--ink-soft)}.state-card{width:min(760px,calc(100% - 40px));min-height:220px;margin:70px auto;padding:38px;display:flex;align-items:center;justify-content:center;gap:22px;background:#fffdf7d6;border:1.5px solid var(--line);border-radius:11px;box-shadow:var(--shadow)}.state-card>svg{flex:0 0 auto;width:40px;height:40px;color:var(--orange)}.state-card h2{margin:0 0 8px;font:31px Ma Shan Zheng,cursive}.state-card p{margin:0;color:var(--ink-soft);line-height:1.7}.state-card ol{margin:15px 0;padding-left:22px;color:var(--ink-soft);line-height:1.8}.state-card code{padding:2px 5px;color:#8f4d22;background:#f4ebdc;border-radius:4px}.empty-doodle{font-size:42px;color:var(--orange)}.spin{animation:spin 1s linear infinite}.not-found-page{max-width:650px;padding-top:90px;text-align:center}.not-found-page .paper-panel{padding:55px}.not-found-page .paper-panel>span{color:#e8943259;font:110px/1 Ma Shan Zheng,cursive}.not-found-page h1{font:40px Ma Shan Zheng,cursive}.not-found-page .button{margin-top:20px}.graph-section{margin-top:72px}.desktop-knowledge-graph{height:670px;overflow:hidden;background:#fffdf7b8;border:1.5px solid rgba(23,51,82,.42);border-radius:13px 9px 15px 10px;box-shadow:var(--shadow)}.desktop-knowledge-graph .react-flow__pane{cursor:grab}.desktop-knowledge-graph .react-flow__pane:active{cursor:grabbing}.desktop-knowledge-graph .react-flow__node{min-height:62px;padding:12px 14px;color:var(--ink);background:#fffdf6;border:1.5px solid rgba(23,51,82,.52);border-radius:8px 12px 9px 13px;box-shadow:3px 4px #1733521a;cursor:pointer;transition:.16s ease}.desktop-knowledge-graph .react-flow__node:hover{transform:translateY(-2px);box-shadow:5px 6px #17335221}.desktop-knowledge-graph .react-flow__node:focus-visible{outline:3px solid rgba(232,148,50,.45);outline-offset:3px}.desktop-knowledge-graph .atlas-node-root{width:150px;display:grid;place-items:center;background:var(--ink);color:#fffaf0;font:22px Ma Shan Zheng,cursive;transform:rotate(-1deg)}.desktop-knowledge-graph .atlas-node-track{width:190px;min-height:82px;text-align:left}.desktop-knowledge-graph .atlas-node-stage,.desktop-knowledge-graph .atlas-node-point{width:210px;min-height:82px;text-align:left}.desktop-knowledge-graph .atlas-node-point{min-height:70px}.desktop-knowledge-graph .atlas-node-exam,.desktop-knowledge-graph .atlas-node-final{width:170px;min-height:66px;background:#fff5d8}.desktop-knowledge-graph .track-agent{background-color:#eef8f1}.desktop-knowledge-graph .track-rag{background-color:#edf5fc}.desktop-knowledge-graph .track-harness{background-color:#fff3df}.desktop-knowledge-graph .atlas-node small,.desktop-knowledge-graph .atlas-node strong,.desktop-knowledge-graph .atlas-node span{display:block}.desktop-knowledge-graph .atlas-node small{color:var(--ink-soft);font-size:9px;font-weight:800;letter-spacing:1px;text-transform:uppercase}.desktop-knowledge-graph .atlas-node strong{margin:4px 0;font-size:13px;line-height:1.35}.desktop-knowledge-graph .atlas-node-track strong{font:22px/1.2 Ma Shan Zheng,cursive}.desktop-knowledge-graph .atlas-node span{color:var(--ink-soft);font-size:9px}.desktop-knowledge-graph .atlas-node-exam svg,.desktop-knowledge-graph .atlas-node-final svg{float:left;margin:3px 7px 20px 0;color:var(--orange)}.desktop-knowledge-graph .is-locked{opacity:.52;filter:grayscale(.25)}.desktop-knowledge-graph .is-complete{border-color:#4f9270;box-shadow:3px 4px #4f92702b}.desktop-knowledge-graph .is-complete:after{content:"✓";position:absolute;right:7px;top:5px;color:#4f9270;font-weight:900}.desktop-knowledge-graph .react-flow__edge-path{stroke:#17335275;stroke-width:1.7}.desktop-knowledge-graph .atlas-edge-cross .react-flow__edge-path{stroke:var(--purple);stroke-width:1.8}.desktop-knowledge-graph .react-flow__controls{overflow:hidden;border:1px solid var(--line);border-radius:8px;box-shadow:2px 3px #1733521a}.desktop-knowledge-graph .react-flow__controls-button{color:var(--ink);background:#fffaf0;border-color:var(--line)}.mobile-knowledge-tree{display:none}.knowledge-stage-groups{display:grid;gap:45px}.knowledge-stage-group>header{margin-bottom:17px;padding-bottom:14px;display:grid;grid-template-columns:auto 1fr auto;align-items:center;gap:14px;border-bottom:1.5px dashed var(--line)}.knowledge-stage-group>header>span{width:48px;height:48px;display:grid;place-items:center;color:#345f49;background:#8cc8a852;border:1.3px solid var(--ink);border-radius:50% 45% 52% 44%;font:20px Ma Shan Zheng,cursive;transform:rotate(-3deg)}.knowledge-stage-group.track-rag>header>span{color:#356384;background:#8ebae54d}.knowledge-stage-group.track-harness>header>span{color:#89531f;background:#e894323d}.knowledge-stage-group h2{margin:0;font:29px Ma Shan Zheng,cursive}.knowledge-stage-group p{margin:3px 0 0;color:var(--ink-soft);font-size:12px}.knowledge-stage-group>header>strong{color:var(--ink-soft);font-size:12px}.learning-route-hero{padding:43px 48px;display:grid;grid-template-columns:1fr auto;align-items:center;gap:32px;overflow:hidden}.learning-route-hero h1{margin:13px 0 10px;font:49px/1.15 Ma Shan Zheng,cursive}.learning-route-hero p{max-width:680px;margin:0 0 22px;color:var(--ink-soft);line-height:1.8}.route-progress-ring{width:155px;height:155px;display:grid;place-content:center;text-align:center;border:7px solid rgba(140,200,168,.38);outline:2px dashed var(--ink);outline-offset:5px;border-radius:50%;transform:rotate(1.5deg)}.track-rag .route-progress-ring{border-color:#8ebae56b}.track-harness .route-progress-ring{border-color:#e894325c}.route-progress-ring strong{font:43px/1 Ma Shan Zheng,cursive}.route-progress-ring span{margin-top:7px;color:var(--ink-soft);font-size:11px}.route-badge{display:inline-flex;align-items:center;gap:8px;padding:10px 15px;color:#357150;background:#8cc8a833;border:1px solid #6ca587;border-radius:8px;font-weight:800}.route-stage-list{margin-top:35px;display:grid;gap:28px}.route-stage{padding:0;overflow:hidden}.route-stage.is-locked{opacity:.68}.route-stage>header{padding:27px 30px;display:grid;grid-template-columns:auto 1fr auto;gap:17px;align-items:center;background:#8cc8a821;border-bottom:1px dashed var(--line)}.track-rag .route-stage>header{background:#8ebae524}.track-harness .route-stage>header{background:#e894321f}.stage-code{width:54px;height:54px;display:grid;place-items:center;background:#fffdf7;border:1.5px solid var(--ink);border-radius:50% 46% 51% 45%;font:23px Ma Shan Zheng,cursive;transform:rotate(-3deg)}.route-stage h2{margin:0 0 5px;font:31px Ma Shan Zheng,cursive}.route-stage header p{margin:0;color:var(--ink-soft);font-size:13px;line-height:1.65}.stage-time{display:inline-flex;align-items:center;gap:6px;color:var(--ink-soft);font-size:11px}.stage-time svg{width:15px}.stage-objectives{padding:17px 30px;display:flex;flex-wrap:wrap;align-items:center;gap:8px;border-bottom:1px dashed var(--line);font-size:11px}.stage-objectives strong{margin-right:3px}.stage-objectives span{padding:5px 8px;color:var(--ink-soft);background:#b79bd721;border-radius:5px}.route-lessons{margin:0;padding:10px 30px;list-style:none}.route-lessons li{border-bottom:1px dashed rgba(23,51,82,.16)}.route-lessons li:last-child{border-bottom:0}.route-lessons a{min-height:68px;display:grid;grid-template-columns:auto 1fr auto;align-items:center;gap:14px}.route-lessons a>svg{width:17px;color:var(--ink-soft)}.lesson-status{width:31px;height:31px;display:grid;place-items:center;color:var(--ink-soft);border:1.2px solid var(--line);border-radius:50%}.route-lessons li.is-complete .lesson-status{color:#397b58;background:#8cc8a838;border-color:#6da98a}.route-lessons li.is-locked{opacity:.5}.route-lessons small,.route-lessons strong{display:block}.route-lessons small{margin-bottom:3px;color:var(--ink-soft);font-size:9px}.route-lessons strong{font-size:14px}.stage-exam-link{margin:4px 30px 28px;padding:17px 19px;display:grid;grid-template-columns:auto 1fr auto;align-items:center;gap:13px;color:var(--ink);background:#f2cc672e;border:1.3px solid rgba(232,148,50,.42);border-radius:9px 12px 8px 11px}.stage-exam-link.is-locked{opacity:.5}.stage-exam-link.is-passed{background:#8cc8a830;border-color:#4c987080}.stage-exam-link>svg{color:var(--orange)}.stage-exam-link span>*{display:block}.stage-exam-link small{margin-top:4px;color:var(--ink-soft)}.track-final-card{margin-top:34px;padding:31px 36px;display:grid;grid-template-columns:auto 1fr auto;align-items:center;gap:22px;background:#f2cc6726}.track-final-card.is-locked{opacity:.58}.track-final-card.is-passed{background:#8cc8a82b}.track-final-card>svg{width:53px;height:53px;color:var(--orange)}.track-final-card h2{margin:5px 0;font:31px Ma Shan Zheng,cursive}.track-final-card p{margin:0;color:var(--ink-soft);font-size:13px}.lesson-completion-box{margin:0 62px 28px;padding:21px 23px;display:flex;align-items:center;justify-content:space-between;gap:20px;background:#8cc8a829;border:1.3px solid rgba(76,152,112,.38);border-radius:9px 12px 8px 11px}.lesson-completion-box h2{margin:0;display:flex;align-items:center;gap:7px;font-size:17px}.lesson-completion-box p{max-width:560px;margin:7px 0 0;color:var(--ink-soft);font-size:12px;line-height:1.7}.lesson-pagination{margin:0 62px 48px;padding-top:22px;display:grid;grid-template-columns:1fr 1fr;gap:20px;border-top:1px dashed var(--line)}.lesson-pagination>a{min-height:65px;padding:11px 14px;display:flex;align-items:center;gap:10px;border:1px solid var(--line);border-radius:8px}.lesson-pagination>a:last-child{justify-content:flex-end;text-align:right}.lesson-pagination span,.lesson-pagination small{display:block}.lesson-pagination span{font-size:12px;font-weight:700}.lesson-pagination small{margin-bottom:4px;color:var(--ink-soft);font-size:9px}.assessment-page{max-width:850px;padding-top:48px}.assessment-intro,.assessment-lock,.assessment-result{padding:52px;text-align:center;overflow:hidden}.assessment-intro>svg,.assessment-lock>svg,.assessment-result>svg{width:62px;height:62px;margin-bottom:12px;color:var(--orange)}.assessment-intro h1,.assessment-lock h1,.assessment-result h1{margin:14px 0 9px;font:47px Ma Shan Zheng,cursive}.assessment-intro>p,.assessment-lock>p,.assessment-result>p{color:var(--ink-soft)}.assessment-intro .button,.assessment-lock .button{margin-top:18px}.best-score{width:fit-content;margin:20px auto 5px;padding:7px 14px;background:#f2cc672e;border-radius:7px;font-size:12px}.best-score strong{font-size:21px}.assessment-result.is-passed>svg{color:#4e9b73}.assessment-result.is-failed>svg{color:var(--coral)}.assessment-result .hero-actions{justify-content:center}.weak-point-box{margin:22px auto;padding:15px;max-width:580px;display:flex;flex-wrap:wrap;justify-content:center;gap:8px;background:#e877751a;border:1px dashed rgba(201,91,89,.42);border-radius:8px}.weak-point-box strong{width:100%}.weak-point-box a{padding:4px 8px;color:#9b4c35;background:#ffffff73;border-radius:5px;font-size:11px}.mobile-track-tree{margin-bottom:23px;background:#fffdf7c7;border:1.4px solid var(--line);border-radius:10px;overflow:hidden}.mobile-track-tree>header{padding:17px;display:flex;align-items:center;justify-content:space-between;background:#8cc8a821}.mobile-track-tree.track-rag>header{background:#8ebae524}.mobile-track-tree.track-harness>header{background:#e8943221}.mobile-track-tree h3{margin:2px 0 0;font:27px Ma Shan Zheng,cursive}.mobile-track-tree header small{color:var(--ink-soft);font-size:9px;letter-spacing:1.5px}.mobile-stage{border-top:1px dashed var(--line)}.mobile-stage>button{width:100%;padding:14px 16px;display:grid;grid-template-columns:auto 1fr auto;align-items:center;gap:8px;text-align:left;color:var(--ink);background:transparent;border:0}.mobile-stage>button svg{width:18px}.mobile-stage>button small{color:var(--ink-soft)}.mobile-stage.is-locked>button{opacity:.58}.mobile-stage ol{margin:0;padding:0 14px 13px 43px;list-style:none}.mobile-stage li{border-left:2px solid rgba(23,51,82,.15)}.mobile-stage li a{min-height:54px;padding:7px 0 7px 14px;display:grid;grid-template-columns:25px 1fr;align-items:center;gap:7px}.mobile-stage li a>svg,.mobile-stage li a>span:first-child{width:23px;height:23px;display:grid;place-items:center;color:var(--ink-soft);font-size:9px}.mobile-stage li.is-complete a>svg{color:#4e9b73}.mobile-stage li.is-locked{opacity:.5}.mobile-stage li a>span:last-child,.mobile-stage li small{display:block}.mobile-stage li a>span:last-child{font-size:12px;font-weight:700}.mobile-stage li small{margin-top:3px;color:var(--ink-soft);font-size:9px;font-weight:400}@keyframes spin{to{transform:rotate(360deg)}}@media(max-width:900px){.site-header{width:min(100% - 28px,1180px)}.menu-button{display:grid;place-items:center}.main-nav{display:none;position:absolute;top:70px;left:0;right:0;padding:12px;background:#fffaf0;border:1.5px solid var(--line);border-radius:10px;box-shadow:var(--shadow)}.main-nav.is-open{display:grid;grid-template-columns:repeat(2,1fr)}.page{width:min(100% - 28px,1180px)}.hero{padding:44px;grid-template-columns:1fr .8fr}.hero h1{font-size:clamp(48px,8vw,67px)}.track-grid{grid-template-columns:1fr}.track-card{min-height:220px}.track-card>div{width:70%}.track-card img{width:34%}.filter-panel{align-items:stretch;flex-direction:column}.filter-groups{display:grid;grid-template-columns:repeat(3,1fr)}.filter-groups select{width:100%}.article-header,.markdown-body{padding-left:38px;padding-right:38px}.keypoints-note,.source-box{margin-left:38px;margin-right:38px}.review-stats{grid-template-columns:repeat(2,1fr)}.desktop-knowledge-graph{display:none}.mobile-knowledge-tree{display:block}.learning-route-hero{padding:34px}.knowledge-grid,.featured-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}@media(max-width:640px){.site-header{min-height:70px}.brand strong{font-size:24px}.brand small{display:none}.site-footer{width:calc(100% - 28px);flex-direction:column}.page{padding-top:24px}.hero{min-height:auto;padding:31px 24px 12px;grid-template-columns:1fr}.hero h1{font-size:49px}.hero-title-line{white-space:normal}.hero-copy>p{font-size:14px}.hero-art{min-height:290px}.hero-art img{width:280px}.speech-bubble{right:0;font-size:15px}.stats-strip{grid-template-columns:repeat(2,1fr)}.stats-strip>div:nth-child(2){border-right:0}.stats-strip>div:nth-child(-n+2){border-bottom:1px dashed var(--line)}.stats-strip span{display:grid;gap:0}.section-block{margin-top:45px}.section-heading{align-items:start;flex-direction:column;gap:10px}.section-heading h2{font-size:33px}.track-card{min-height:265px;padding:23px}.track-card>div{width:82%}.track-card img{width:46%;opacity:.75}.knowledge-grid,.featured-grid{grid-template-columns:1fr}.tip-banner{align-items:flex-start;flex-wrap:wrap}.tip-banner .button{width:100%}.page-intro h1{font-size:48px}.filter-groups{grid-template-columns:1fr}.search-field{min-width:0}.article-header{padding:37px 24px 32px}.article-header h1{font-size:39px}.keypoints-note{margin:25px 19px}.keypoints-note ul{columns:1}.markdown-body{padding:5px 21px 34px;font-size:14px}.markdown-body h2{font-size:23px}.markdown-body table{display:block;overflow-x:auto}.zoomable-image-hint{opacity:1;transform:translateY(0)}.image-lightbox{grid-template-rows:58px minmax(0,1fr) 58px;padding:0 10px}.image-lightbox-toolbar{justify-self:start}.image-lightbox-close{top:11px;right:10px}.image-lightbox-help{max-width:260px;justify-self:center;line-height:1.5}.source-box{margin:0 19px 28px}.source-box p{display:grid}.practice-setup{padding:22px}.mode-picker,.setup-fields{grid-template-columns:1fr}.question-card{min-height:auto;padding:27px 20px}.question-card>h1{font-size:21px}.option-button{grid-template-columns:30px 1fr 18px;padding:12px}.review-intro{align-items:start;flex-direction:column}.review-stats{grid-template-columns:1fr 1fr;gap:9px}.review-stats>div{min-height:80px;padding:12px}.session-list>div{grid-template-columns:1fr auto}.session-list>div span:nth-of-type(2){display:none}.state-card{align-items:flex-start;padding:27px;flex-direction:column}.result-card{padding:42px 22px}.result-art{opacity:.2}.knowledge-stage-group>header{grid-template-columns:auto 1fr}.knowledge-stage-group>header>strong{display:none}.learning-route-hero{padding:27px 22px;grid-template-columns:1fr}.learning-route-hero h1{font-size:41px}.route-progress-ring{width:125px;height:125px;justify-self:center}.route-stage>header{padding:22px 18px;grid-template-columns:auto 1fr}.stage-time{grid-column:2}.stage-objectives{padding:15px 18px}.route-lessons{padding:8px 18px}.stage-exam-link{margin:4px 18px 22px}.track-final-card{padding:25px 21px;grid-template-columns:auto 1fr}.track-final-card .button{grid-column:1 / -1}.lesson-completion-box{margin:0 19px 23px;align-items:stretch;flex-direction:column}.lesson-pagination{margin:0 19px 28px;grid-template-columns:1fr}.assessment-intro,.assessment-lock,.assessment-result{padding:39px 20px}.assessment-intro h1,.assessment-lock h1,.assessment-result h1{font-size:39px}}@media(prefers-reduced-motion:reduce){*,*:before,*:after{scroll-behavior:auto!important;animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}}