:root{--bg:#f7f8fa;--paper:#fff;--ink:#20262f;--muted:#737c88;--line:#e4e8ee;--blue:#416a95;--dark:#264362;--pale:#edf3f9;--green:#4e7968;--radius:23px}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:100px}body{margin:0;background:var(--bg);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;-webkit-font-smoothing:antialiased;font-size:15px;line-height:1.7}button,input,textarea,select{font:inherit}button,a,input,textarea,select{-webkit-tap-highlight-color:transparent}button,a{touch-action:manipulation}a{color:inherit;text-decoration:none}button{cursor:pointer}button:disabled{cursor:default;opacity:.55}svg{fill:none;stroke:currentColor;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round}button:focus-visible,a:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible,summary:focus-visible{outline:3px solid #81a9d1;outline-offset:4px}h1,h2,h3,p{margin-top:0}h1,h2,h3{font-weight:600;letter-spacing:-.04em;line-height:1.3}h1{font-size:clamp(36px,5.2vw,66px)}h2{font-size:34px}h3{font-size:22px}p{margin-bottom:18px}small,.small{font-size:12px}.muted{color:var(--muted)}.skip{position:fixed;top:-90px;left:10px;background:white;padding:10px;z-index:99}.skip:focus{top:10px}.header{height:77px;position:sticky;top:0;background:#f7f8faeb;backdrop-filter:blur(20px);border-bottom:1px solid #e4e8eea6;z-index:20}.nav-shell{max-width:1280px;margin:auto;padding:0 44px;height:100%;display:flex;align-items:center;justify-content:space-between;gap:30px}.brand{display:flex;gap:10px;align-items:center;font-size:24px;font-weight:650;letter-spacing:1px;white-space:nowrap}.brand>svg{width:25px;height:29px;color:var(--dark);stroke-width:2.4}.brand>span{display:flex;align-items:center}.brand small{font-size:11px;font-weight:400;letter-spacing:1px;color:#777f88}.brand-divider{height:15px;width:1px;background:#ccd0d6;margin:0 13px}nav{display:flex;gap:34px;font-size:13px;color:#737b85}nav a{position:relative;padding:26px 0}nav a:hover,nav a.active{color:var(--dark)}nav a.active:after{content:'';position:absolute;bottom:15px;left:calc(50% - 2px);width:4px;height:4px;background:var(--blue);border-radius:50%}.icon-button{background:none;border:none;padding:8px;color:var(--muted);display:inline-flex;align-items:center;justify-content:center;gap:8px}.icon-button svg{width:19px;height:19px}.search-open{font-size:12px}.container{max-width:1192px;margin:auto;padding:0 28px}.btn{display:inline-flex;align-items:center;justify-content:center;gap:13px;border-radius:100px;padding:12px 24px;border:1px solid transparent;font-size:13px;font-weight:500;min-height:45px;background:var(--dark);color:white;transition:background .2s,transform .2s}.btn:hover{background:#35597d;transform:translateY(-1px)}.btn.secondary{background:white;color:var(--dark);border-color:var(--line)}.btn.secondary:hover{background:var(--pale)}.btn.light{background:var(--pale);color:var(--dark)}.btn.small-btn{padding:7px 17px;min-height:35px;font-size:12px}.text-link{display:inline-flex;align-items:center;gap:9px;color:var(--blue);font-size:13px;background:none;border:0;padding:8px 0}.text-link:hover{color:var(--dark)}.actions{display:flex;gap:22px;align-items:center;flex-wrap:wrap}.eyebrow{font-size:11px;color:var(--blue);letter-spacing:2.2px;font-weight:550;margin-bottom:22px;text-transform:uppercase}.eyebrow .dot{display:inline-block;width:5px;height:5px;border-radius:50%;background:var(--blue);margin-right:9px;vertical-align:2px}.hero{position:relative;display:grid;grid-template-columns:1fr 1fr;align-items:center;gap:10px;min-height:610px;padding:56px 0 54px}.hero-copy{position:relative;z-index:2}.hero h1{font-size:clamp(38px,4.7vw,60px);line-height:1.35;margin-bottom:25px;letter-spacing:-.06em}.hero h1 span{color:var(--blue)}.hero-desc{max-width:430px;color:var(--muted);font-size:14px;line-height:1.95;margin-bottom:29px}.hero-meta{display:flex;align-items:center;gap:15px;color:#939ba5;font-size:10px;margin-top:29px;letter-spacing:.5px}.hero-meta i{height:3px;width:3px;background:#a8afb8;border-radius:50%}.hero-art{position:relative;height:415px;width:100%;isolation:isolate}.art-glow{position:absolute;inset:20px -25px 25px;border-radius:50%;background:radial-gradient(ellipse,#dfebf78f,transparent 69%);z-index:-1}.diagram-lines{position:absolute;inset:0;width:100%;height:100%;color:#b8c9dd;stroke-width:1.1}.data-record{position:absolute;background:#ffffffdf;border:1px solid #e1e8f0;border-radius:13px;width:172px;padding:13px 16px;box-shadow:0 8px 25px #23415c06;transition:transform .4s,border-color .4s}.record-top{font-size:9px;letter-spacing:.8px;color:#8d99a7;display:flex;justify-content:space-between}.record-top b{font-weight:500;color:#6186ab}.data-record strong{display:block;font-size:12px;font-weight:500;margin:7px 0 4px}.data-record small{font-size:9px;color:#a4abb5}.record-one{top:24px;left:17px;transform:rotate(-4deg)}.record-two{top:157px;left:0;transform:rotate(2deg)}.record-three{top:291px;left:35px;transform:rotate(-3deg)}.unified{position:absolute;top:133px;right:0;width:212px;border:1px solid #cbd8e7;border-radius:17px;background:linear-gradient(135deg,#fff,#f5f9fe);padding:23px;box-shadow:0 18px 50px #345e8d10}.unified .identity-icon{display:grid;place-items:center;width:36px;height:36px;border-radius:10px;background:#e9f0f8;color:var(--blue);margin-bottom:15px}.identity-icon svg{width:23px;height:23px}.unified strong{font-size:16px;display:block;font-weight:550;margin:7px 0}.unified .identity-tag{font-size:9px;letter-spacing:.4px;color:var(--blue);padding-top:13px;margin-top:13px;border-top:1px solid var(--line)}.unified .record-top{font-size:8px;gap:5px}.diagram-label{position:absolute;top:97px;right:44px;font-size:9px;letter-spacing:2px;color:#8e9baa}.diagram-demo{position:absolute;bottom:0;right:2px;font-size:9px;color:#a2aab4}.diagram-node{position:absolute;left:49%;top:53%;width:28px;height:28px;background:white;border:1px solid #c9d8e9;border-radius:50%;display:grid;place-items:center;color:var(--blue);box-shadow:0 0 0 8px #edf3f85c;font-size:12px}.concept-bar{border-top:1px solid var(--line);border-bottom:1px solid var(--line);display:grid;grid-template-columns:160px 1fr;align-items:center;gap:34px;padding:21px 0;margin-bottom:82px}.segmented{display:inline-flex;gap:4px;align-items:center;background:#edf0f4;border:1px solid #e5e9ef;border-radius:100px;padding:4px}.segmented button{border:0;color:#818b97;background:none;padding:7px 13px;font-size:10px;border-radius:100px;white-space:nowrap}.segmented button.selected{background:white;color:var(--dark);box-shadow:0 1px 5px #20374b0b}.concept-copy{font-size:12px;color:var(--muted);margin:0}.concept-copy strong{color:var(--dark);font-weight:500;margin-right:15px}.section-heading{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:29px}.section-heading h2{font-size:32px;margin:6px 0 10px}.section-heading p{font-size:13px;color:var(--muted);margin:0}.section-heading .eyebrow{margin:0;font-size:9px;letter-spacing:2px}.topic-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}.topic-card{position:relative;background:white;border:1px solid #e6e9ee;border-radius:20px;overflow:hidden;transition:transform .3s,box-shadow .3s}.topic-card:hover{transform:translateY(-5px);box-shadow:0 12px 35px #2c4d6d08}.topic-card-visual{height:152px;position:relative;background:linear-gradient(140deg,#f4f7fa,#eef2f6);padding:23px;display:flex;align-items:center;justify-content:center;color:#839ab3}.topic-card-visual.master{background:linear-gradient(140deg,#f3f6f8,#eef2f3);color:#81a19a}.topic-card-visual.quality{background:linear-gradient(140deg,#f5f4f9,#f0eef6);color:#a399ba}.topic-card-visual svg{width:180px;height:110px}.topic-card-visual .visual-no{position:absolute;left:22px;top:18px;font-size:9px;color:#9ca7b4;letter-spacing:1px}.topic-card-body{padding:26px}.topic-card h3{font-size:21px;margin:8px 0 12px}.topic-card p{font-size:12px;color:var(--muted);line-height:1.9;min-height:44px}.card-bottom{border-top:1px solid #f0f2f4;padding-top:16px;margin-top:21px;display:flex;justify-content:space-between;font-size:10px;color:#87919e}.card-bottom .arrow{color:var(--blue);font-size:17px;line-height:1}.chapter-tag{font-size:9px;letter-spacing:1.8px;color:#9aa3ae}.learning-section{margin-bottom:90px}.continue-strip{display:flex;align-items:center;gap:20px;border:1px solid #dce6ee;background:#f0f5fa;padding:20px 25px;border-radius:16px;margin-bottom:32px}.continue-strip strong{font-size:13px;display:block}.continue-strip p{font-size:11px;color:var(--muted);margin:2px 0 0}.continue-strip .btn{margin-left:auto;white-space:nowrap}.progress-ring{--progress:0deg;width:43px;height:43px;border-radius:50%;background:conic-gradient(var(--blue) var(--progress),#d8e3ee 0);position:relative;display:grid;place-items:center;flex:none}.progress-ring:before{content:'';position:absolute;inset:3px;background:#f0f5fa;border-radius:50%}.progress-ring span{z-index:1;font-size:10px;color:var(--blue)}.feature-section{background:#ecf0f4;padding:65px 0;margin-top:0}.feature-inner{display:grid;grid-template-columns:1fr 1fr;align-items:center;gap:85px}.feature-inner h2{font-size:37px;line-height:1.4}.feature-inner p{font-size:13px;color:var(--muted);max-width:370px}.flow-paper{background:white;border:1px solid #dee5ec;border-radius:18px;padding:27px;box-shadow:0 15px 40px #324d6410;transform:rotate(-2deg)}.flow-paper .mini-label{color:#9aa5b2;font-size:9px;letter-spacing:1.2px}.flow-paper h3{font-size:17px;margin:14px 0 20px}.flow-step{display:flex;align-items:center;gap:14px;padding:12px 0;border-top:1px solid #edf0f3;font-size:12px}.flow-step b{border-radius:50%;height:24px;width:24px;background:var(--pale);color:var(--blue);display:grid;place-items:center;font-size:10px;font-weight:500}.flow-step span:last-child{margin-left:auto;font-size:10px;color:#9aa5b2}.book-section{display:grid;grid-template-columns:160px 1fr auto;align-items:center;gap:45px;padding:70px 30px}.book-cover{height:170px;width:121px;background:#2c4055;color:#e9eff3;padding:20px 16px;box-shadow:5px 8px 20px #233d5b18;position:relative;border-left:5px solid #455c71;transform:rotate(-5deg);display:flex;flex-direction:column}.book-cover strong{font-size:18px;font-weight:500;line-height:1.55;letter-spacing:2px}.book-cover small{font-size:6px;line-height:1.8;margin-top:8px;letter-spacing:.8px}.book-cover:after{content:'';width:50px;height:2px;background:#96aec3;position:absolute;bottom:26px}.book-section h3{font-size:24px}.book-section p{font-size:12px;color:var(--muted);max-width:500px}.book-section .pill{font-size:10px}.pill{display:inline-flex;align-items:center;border-radius:100px;padding:4px 10px;background:var(--pale);color:var(--blue);font-size:10px;line-height:1.6}.pill.green{background:#eef5f1;color:var(--green)}.pill.gray{background:#eef0f3;color:#7b8591}.footer{max-width:1192px;padding:29px 28px 25px;margin:0 auto;border-top:1px solid var(--line);display:flex;justify-content:space-between;align-items:center;gap:15px;flex-wrap:wrap;color:#9ca4ae;font-size:10px}.footer .brand{font-size:17px;letter-spacing:.5px}.footer small{font-size:10px;font-weight:400;letter-spacing:0}.footer-dot{color:#c1c6cd;margin:0 5px}.footer>span{display:flex;align-items:center;gap:8px}.footer i{display:inline-block;background:#abb6c0;width:3px;height:3px;border-radius:50%}.footer p{width:100%;font-size:9px;margin:0;color:#a8afb8}.page-heading{padding:62px 0 39px}.page-heading h1{font-size:42px;margin:0 0 16px}.page-heading p{font-size:14px;color:var(--muted);max-width:620px}.page-heading .eyebrow{margin-bottom:15px}.back-link{font-size:11px;color:var(--muted);display:inline-flex;gap:10px;margin-bottom:22px}.path-list{display:grid;gap:22px;margin-bottom:70px}.path-card{display:grid;grid-template-columns:230px 1fr;overflow:hidden;background:white;border:1px solid var(--line);border-radius:20px}.path-card .topic-card-visual{height:100%;min-height:245px}.path-content{padding:30px 34px}.path-content h2{font-size:25px;margin:10px 0}.path-content>p{font-size:12px;color:var(--muted);max-width:640px}.path-content .card-bottom{align-items:center}.extension{margin:13px 0 0;color:#9ba3ae;font-size:11px}.reading-shell{max-width:1192px;padding:34px 28px 70px;margin:auto;display:grid;grid-template-columns:180px minmax(0,680px) 1fr;gap:40px;align-items:start}.lesson-nav{position:sticky;top:109px}.lesson-nav .eyebrow{font-size:9px;letter-spacing:1px;margin:10px 0 15px}.lesson-nav a{display:block;color:#85909d;font-size:12px;padding:9px 13px;border-left:1px solid #dce2e9}.lesson-nav a:hover{color:var(--blue);border-color:var(--blue)}.lesson-nav .back-link{padding:0;border:none;margin:4px 0 22px}.lesson-nav .lesson-progress{margin-top:27px;font-size:10px;color:#8b95a2}.progress-track{height:3px;background:#e0e6ec;border-radius:10px;overflow:hidden;margin:10px 0}.progress-track div{height:100%;background:var(--blue)}.lesson-article{padding-top:3px}.lesson-article h1{font-size:38px;line-height:1.5;margin:18px 0}.lesson-article .lead{font-size:15px;color:var(--muted);line-height:1.95}.lesson-meta{display:flex;align-items:center;gap:12px;font-size:10px;color:#96a0ac;flex-wrap:wrap;margin-bottom:30px}.goal-box{background:#edf3f8;border:1px solid #dde6f0;padding:18px 22px;border-radius:12px;font-size:12px;color:#526b84;margin-bottom:36px}.goal-box strong{display:block;font-size:10px;letter-spacing:1px;margin-bottom:5px}.lesson-article section{margin:40px 0}.lesson-article section h2{font-size:23px;margin-bottom:18px}.lesson-article section p{color:#596470;font-size:14px;line-height:2.1}.lesson-article .section-no{display:block;font-size:9px;letter-spacing:2px;color:#95a1af;margin-bottom:8px}.lesson-principle{border-left:2px solid #789abb;margin:30px 0;padding:8px 0 8px 20px;color:var(--dark);font-size:19px;line-height:1.8}.lesson-checks{list-style:none;padding:0;margin:18px 0}.lesson-checks li{padding:13px 0;border-bottom:1px solid var(--line);font-size:13px;color:#64717e;display:flex;gap:14px}.lesson-checks li:before{content:'✓';color:#7898b7}.diagram-panel{background:white;border:1px solid var(--line);border-radius:18px;padding:24px;margin:28px 0}.diagram-panel .segmented{margin-bottom:20px}.diagram-panel .diagram-step{display:flex;align-items:center;justify-content:space-between;padding:16px 18px;background:var(--pale);border-radius:10px;margin:8px 0;font-size:12px;color:var(--dark)}.diagram-panel .diagram-step small{color:#7b91a8}.diagram-panel .diagram-annotation{font-size:11px;color:var(--muted);margin:17px 0 0}.source-details{border:1px solid var(--line);background:white;border-radius:12px;padding:15px 18px;margin:16px 0;font-size:12px}.source-details summary{cursor:pointer;color:var(--dark);font-weight:500}.source-details p{font-size:12px!important;line-height:1.9!important;margin:12px 0 7px!important}.source-details .source-locator{color:#71869c}.source-details .small{color:#9aa3ae;font-size:10px}.field-label{display:block;font-size:11px;font-weight:500;color:#63768a;margin:17px 0 7px}.input,textarea,select{width:100%;background:white;border:1px solid #dce2e9;border-radius:9px;padding:12px;color:#455363;line-height:1.8;font-size:12px}textarea{resize:vertical;min-height:115px}textarea:focus,input:focus{border-color:#91abc6}.notes-panel{margin:34px 0}.notes-panel h3{font-size:17px}.notes-panel textarea{min-height:140px}.save-hint{font-size:10px;color:#8b98a4;margin-top:7px}.lesson-bottom{display:flex;justify-content:space-between;gap:15px;align-items:center;border-top:1px solid var(--line);padding:28px 0}.topic-switch{display:flex;gap:7px;flex-wrap:wrap;margin-top:5px}.topic-switch a{padding:7px 14px;border:1px solid var(--line);background:white;font-size:11px;border-radius:50px;color:#85909c}.topic-switch a.active{background:var(--dark);color:white;border-color:var(--dark)}.case-layout{display:grid;grid-template-columns:minmax(0,1.2fr) minmax(0,1fr);gap:26px;align-items:start;margin-bottom:65px}.panel{background:white;border:1px solid var(--line);border-radius:18px;padding:28px}.panel h2{font-size:21px}.panel h3{font-size:16px}.panel p{font-size:13px;color:#677381;line-height:1.95}.table-scroll{overflow:auto;width:100%;margin:24px 0}.data-table{border-collapse:collapse;font-size:11px;width:100%;text-align:left}.data-table th{font-weight:500;color:#6f8194;background:#f3f6f9}.data-table th,.data-table td{padding:13px 14px;border-bottom:1px solid #e8ecf0;min-width:93px;vertical-align:top}.data-table td{color:#687585}.case-task{background:var(--pale);padding:18px;border-radius:10px;color:var(--dark);font-size:13px;line-height:1.9}.answer-panel{position:sticky;top:102px}.answer-panel textarea{min-height:200px}.answer-panel .btn{margin-top:15px}.feedback{border-top:1px solid var(--line);margin-top:24px;padding-top:24px}.feedback h3{font-size:16px}.feedback .disclaimer{font-size:10px;color:#98a2ae;line-height:1.8}.check-item{padding:10px 0;display:flex;gap:10px;font-size:11px;color:#748496;border-bottom:1px solid #eef1f4}.check-item b{font-weight:500;color:var(--blue);white-space:nowrap}.check-item.pending b{color:#a18660}.reference-answer{background:#f5f7fa;padding:18px;border-radius:11px;margin:22px 0}.reference-answer p{font-size:12px;margin:10px 0 0}.case-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin:0 0 70px}.case-card{padding:29px;display:flex;flex-direction:column}.case-card .case-number{font-size:48px;color:#c7d5e2;font-weight:300;line-height:1.2;margin-bottom:20px}.case-card h2{font-size:22px;line-height:1.6}.case-card .actions{margin-top:auto;padding-top:12px}.case-card p{font-size:12px}.studio-wrap{max-width:1350px;padding:0 32px;margin:auto}.studio-heading{display:flex;align-items:center;justify-content:space-between;gap:20px}.studio-heading .page-heading{padding-bottom:25px}.studio-heading h1{font-size:35px}.studio-tools{display:flex;gap:12px;margin-bottom:25px;align-items:center;flex-wrap:wrap}.studio-tools select{width:auto;max-width:160px;height:41px;padding:6px 30px 6px 12px;background:white}.studio-tools input{flex:1;min-width:150px;max-width:330px;height:41px}.studio-count{margin-left:auto;font-size:11px;color:#92a0ae}.studio-grid{display:grid;grid-template-columns:300px minmax(0,1fr);gap:22px;align-items:start;margin-bottom:60px}.sample-list{border:1px solid var(--line);background:white;border-radius:14px;max-height:950px;overflow:auto}.sample-row{width:100%;text-align:left;background:white;border:0;border-bottom:1px solid #edf0f3;padding:19px 21px;display:block}.sample-row:last-child{border-bottom:0}.sample-row:hover{background:#f6f8fa}.sample-row.selected{background:#edf3f8;border-left:3px solid #7c9bb7;padding-left:18px}.sample-row .sample-id{font-size:8px;letter-spacing:1px;color:#98a6b4;display:block;margin-bottom:8px}.sample-row strong{display:block;font-size:12px;font-weight:500;color:#4c5e70;line-height:1.8}.sample-row .sample-meta{display:flex;justify-content:space-between;align-items:center;margin-top:12px;font-size:10px;color:#94a0ad}.sample-detail{padding:25px 28px;border-radius:14px;background:white;border:1px solid var(--line);min-width:0}.detail-heading{display:flex;align-items:center;justify-content:space-between;gap:15px;border-bottom:1px solid var(--line);padding-bottom:20px}.detail-heading h2{font-size:18px;margin:5px 0}.detail-heading .sample-id{font-size:9px;color:#94a1af;letter-spacing:1px}.detail-columns{display:grid;grid-template-columns:minmax(0,1.2fr) minmax(0,1fr);gap:27px;margin-top:4px}.detail-columns textarea{min-height:90px;font-size:12px}.detail-columns #sample-answer{min-height:205px}.detail-source{padding-top:15px;min-width:0}.detail-source h3{font-size:12px;color:#71859a;font-weight:500;margin:0 0 15px}.detail-source p{font-size:11px;color:#7d8b98;line-height:1.95}.detail-source .source-summary{border-left:2px solid #c6d7e7;padding:9px 0 9px 16px;margin:14px 0 20px}.detail-source .source-summary p{color:#596e82;margin:0}.detail-source .source-locator{font-size:10px;color:#8b9cae}.review-check{display:flex;align-items:flex-start;gap:9px;color:#78899b;font-size:11px;margin:20px 0;cursor:pointer}.review-check input{margin:4px 0 0;accent-color:var(--blue);flex:none}.status-controls{display:flex;gap:10px;align-items:center;flex-wrap:wrap;margin:20px 0 0;border-top:1px solid var(--line);padding-top:20px}.status-controls select{width:125px;padding:7px 12px;font-size:11px}.status-controls .save-hint{margin-left:auto}.history summary{cursor:pointer;font-size:11px;color:#92a0ad;margin-top:22px}.history ul{padding-left:17px;font-size:10px;color:#8d9ba8}.empty-state{padding:55px 25px;color:#8b99a8;text-align:center;font-size:12px}.empty-state strong{display:block;color:#506a83;font-size:17px;margin-bottom:10px}.toast{position:fixed;bottom:26px;left:50%;transform:translate(-50%,20px);background:#263c50f2;color:#fff;padding:12px 24px;border-radius:100px;font-size:12px;z-index:100;opacity:0;pointer-events:none;transition:.25s;max-width:90vw;text-align:center}.toast.visible{opacity:1;transform:translate(-50%,0)}dialog{width:590px;max-width:calc(100% - 32px);border:1px solid var(--line);border-radius:20px;padding:27px;box-shadow:0 30px 90px #18334c24;background:#fbfcfd;color:var(--ink)}dialog::backdrop{background:#2337484a;backdrop-filter:blur(5px)}.dialog-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:12px}.dialog-top h2{font-size:21px;margin:0}.dialog-top button{font-size:23px}.search-field{display:flex;align-items:center;border:1px solid #d7e1eb;background:white;border-radius:10px;padding:6px 15px;gap:10px}.search-field svg{width:20px;height:20px;color:#8296aa}.search-field input{border:0;padding:9px 0;width:100%;background:none;font-size:13px;outline-offset:1px}.search-result{display:block;padding:16px 4px;border-bottom:1px solid var(--line);font-size:13px;color:var(--dark)}.search-result small{display:block;margin-top:4px;font-size:10px;color:#8f9eac}#search-results{max-height:350px;overflow:auto;margin:10px 0 20px}.source-note{font-size:10px;color:#96a2af;margin:10px 0}.page-enter{animation:pageIn .4s ease-out}@keyframes pageIn{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}
@media(min-width:1400px){.hero{min-height:660px}.hero-art{height:450px}.record-three{top:310px}.unified{top:145px}.hero h1{font-size:64px}}
@media(max-width:1100px){.brand small,.brand-divider{display:none}.nav-shell{padding:0 28px}.hero h1{font-size:48px}.data-record{width:153px}.unified{width:180px;padding:19px;right:0}.diagram-node{left:48%}.hero{gap:22px}.concept-bar{grid-template-columns:165px 1fr}.reading-shell{grid-template-columns:150px minmax(0,680px);gap:25px}.reading-spacer{display:none}.studio-grid{grid-template-columns:255px minmax(0,1fr)}.detail-columns{grid-template-columns:1fr}.detail-source{border-top:1px solid var(--line);margin-top:10px}.feature-inner{gap:50px}.case-grid{gap:15px}.case-card{padding:23px}.case-card h2{font-size:19px}.book-section{gap:28px}}
@media(max-width:760px){body{font-size:14px}.header{height:65px}.nav-shell{padding:0 18px;gap:14px}.brand{font-size:21px;gap:8px}.brand>svg{width:21px}.nav-shell nav{gap:17px;font-size:11px;margin-left:auto}.nav-shell nav a{padding:22px 0}.nav-shell nav a.active:after{bottom:12px}.search-open{padding:5px}.search-open span{display:none}.container{padding:0 21px}.hero{grid-template-columns:1fr;gap:0;padding:48px 0 26px;text-align:center}.hero h1{font-size:clamp(36px,8vw,51px)}.eyebrow{font-size:10px;margin-bottom:19px}.hero-desc{margin:0 auto 25px;max-width:410px;font-size:13px}.hero .actions,.hero-meta{justify-content:center}.hero-meta{margin-top:22px}.hero-art{height:350px;max-width:450px;margin:29px auto 0;text-align:left}.data-record{width:150px;padding:11px 14px}.record-one{top:10px;left:20px}.record-two{top:124px;left:6px}.record-three{top:234px;left:31px}.unified{top:103px;right:4px;width:172px;padding:18px}.diagram-label{top:76px;right:22px}.diagram-node{top:50%;left:47%}.concept-bar{grid-template-columns:1fr;gap:13px;text-align:center;margin-bottom:54px;padding:20px 0}.concept-bar .segmented{justify-self:center}.concept-copy{font-size:11px;min-height:42px}.concept-copy strong{display:block;margin:0 0 4px}.topic-grid{grid-template-columns:1fr}.topic-card{display:grid;grid-template-columns:125px 1fr;border-radius:16px}.topic-card-visual{height:100%;padding:15px}.topic-card-visual svg{width:100%;height:110px}.topic-card-visual .visual-no{left:12px;top:12px}.topic-card-body{padding:22px}.topic-card h3{font-size:19px;margin:7px 0}.topic-card p{font-size:11px;min-height:0;margin:0}.card-bottom{margin-top:16px;padding-top:13px}.chapter-tag{font-size:8px;letter-spacing:1px}.learning-section{margin-bottom:55px}.section-heading{align-items:center;margin-bottom:24px;gap:10px}.section-heading h2{font-size:27px}.section-heading p{font-size:11px}.section-heading .text-link{font-size:11px;white-space:nowrap}.feature-section{padding:45px 0}.feature-inner{grid-template-columns:1fr;gap:35px}.feature-inner h2{font-size:30px}.feature-inner p{font-size:12px}.flow-paper{margin:0 10px;transform:rotate(-1deg)}.book-section{grid-template-columns:95px 1fr;padding:48px 0;gap:22px}.book-cover{width:85px;height:126px;padding:15px 9px;border-left:3px solid #455c71}.book-cover strong{font-size:13px;letter-spacing:1px}.book-cover small{font-size:5px}.book-cover:after{width:30px;bottom:16px}.book-section h3{font-size:19px;margin-bottom:9px}.book-section p{font-size:10px;margin-bottom:9px}.book-section>.pill{grid-column:2;justify-self:start;margin-top:-18px}.footer{padding:23px 21px;gap:12px}.footer .brand{font-size:15px}.footer small{font-size:9px}.footer>span{font-size:9px}.continue-strip{padding:16px;gap:12px}.continue-strip strong{font-size:12px}.continue-strip .btn{padding:6px 12px;font-size:10px;min-height:33px}.continue-strip p{font-size:10px}.progress-ring{width:35px;height:35px}.page-heading{padding:38px 0 28px}.page-heading h1{font-size:32px}.page-heading p{font-size:12px}.path-card{grid-template-columns:1fr}.path-card .topic-card-visual{height:135px;min-height:0}.path-card .topic-card-visual svg{width:160px}.path-content{padding:24px}.path-content h2{font-size:22px}.path-content .card-bottom{gap:12px}.reading-shell{display:block;padding:25px 21px 40px}.lesson-nav{position:static;margin-bottom:30px}.lesson-nav>a:not(.back-link),.lesson-nav>.eyebrow,.lesson-progress{display:none}.lesson-nav .back-link{margin-bottom:14px}.topic-switch{margin:0;gap:7px}.topic-switch a{font-size:10px;padding:5px 13px}.lesson-article h1{font-size:29px}.lesson-article .lead{font-size:13px}.lesson-article section p{font-size:13px}.lesson-article section h2{font-size:21px}.lesson-principle{font-size:17px}.lesson-bottom{flex-wrap:wrap}.lesson-bottom .btn{padding:10px 19px;font-size:12px}.case-grid{grid-template-columns:1fr;gap:15px}.case-card .case-number{font-size:35px;margin:0 0 13px}.case-card h2{font-size:23px}.case-layout{grid-template-columns:1fr;gap:18px}.panel{padding:23px}.answer-panel{position:static}.data-table th,.data-table td{padding:11px;min-width:87px;font-size:10px}.studio-wrap{padding:0 18px}.studio-heading{align-items:flex-start;flex-wrap:wrap;gap:0;margin-bottom:22px}.studio-heading .page-heading{padding-bottom:8px}.studio-heading .page-heading p{margin-bottom:10px}.studio-heading h1{font-size:31px}.studio-tools{gap:8px;margin-bottom:18px}.studio-tools input{max-width:none;flex-basis:100%;font-size:12px}.studio-tools select{flex:1;max-width:none;font-size:11px;padding:6px 10px}.studio-count{font-size:10px;margin-left:0}.studio-grid{grid-template-columns:1fr;gap:18px}.sample-list{max-height:240px}.sample-row{padding:14px 17px}.sample-row.selected{padding-left:14px}.sample-row .sample-id{margin-bottom:5px}.sample-row .sample-meta{margin-top:8px}.sample-row strong{font-size:11px}.sample-detail{padding:21px}.detail-heading{align-items:flex-start}.detail-heading .btn{padding:7px 12px;font-size:10px;white-space:nowrap}.detail-columns{gap:12px}.status-controls{gap:9px}.status-controls .save-hint{width:100%;margin-left:0}.dialog-top h2{font-size:18px}.lesson-meta{font-size:9px;gap:8px}.btn{font-size:12px;padding:11px 22px}.diagram-panel{padding:19px}.diagram-panel .diagram-step{padding:13px;font-size:11px}.toast{font-size:11px;border-radius:13px;width:max-content}.source-note{font-size:9px}}
@media(max-width:370px){.nav-shell{padding:0 12px;gap:8px}.nav-shell nav{gap:12px;font-size:10px}.brand{font-size:19px}.hero h1{font-size:34px}.data-record{width:132px}.unified{width:156px}.hero-art{height:340px}.topic-card{grid-template-columns:95px 1fr}}
main:focus{outline:none}.hero h1{font-size:clamp(36px,4vw,50px)}
@media(min-width:1400px){.hero h1{font-size:52px}}
@media(max-width:760px){.hero h1{font-size:clamp(28px,7.5vw,44px)}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{animation:none!important;transition:none!important}}
