/* Isolated graphite / violet learning workspace. */
.dlb-app{--dlb-accent:#6659b8;--dlb-ink:#232536;--dlb-muted:#6c7086;--dlb-line:#e8e9f0;--dlb-soft:#f3f0ff;--dlb-bg:#f6f7fb;display:grid;grid-template-columns:252px minmax(0,1fr);min-height:calc(100vh - 84px);width:100%;color:var(--dlb-ink);background:var(--dlb-bg);font:15px/1.65 -apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",sans-serif;-webkit-font-smoothing:antialiased;text-align:left;isolation:isolate}
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22px}.dlb-brand-mark{display:grid;place-items:center;color:var(--dlb-accent);background:var(--dlb-soft);border-radius:12px;width:44px;height:44px;flex-shrink:0}.dlb-brand-mark svg{width:28px;height:28px}.dlb-brand strong{display:block;font-size:18px;font-weight:650;white-space:nowrap}.dlb-brand small{display:block;color:var(--dlb-muted);font-size:12px;margin-top:3px}.dlb-nav-group{padding:12px 0 20px;margin-bottom:14px;border-bottom:1px solid #eff0f5}.dlb-nav-group:last-child{border:0;margin:0}.dlb-group-label{display:block;padding:0 16px 9px;font-size:12px;color:#747991}.dlb-nav a{display:flex;align-items:center;gap:14px;min-height:47px;padding:10px 16px;margin:4px 0;border-radius:9px;font-weight:500;color:#41465f;transition:background-color .16s,color .16s}.dlb-nav a:hover{background:#f7f6fb;color:var(--dlb-accent)}.dlb-nav a[aria-current]{background:#f0ecfc;color:#6250b4;font-weight:600}.dlb-sidebar-foot{color:#898da0;font-size:11px;padding:10px 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#9a87db50}.dlb-icon-tile{width:44px;height:44px;border-radius:10px;background:#f3f0ff;color:#7863c6;display:grid;place-items:center;flex-shrink:0}.dlb-domain-card h3{font-size:14px;font-weight:600;line-height:1.5}.dlb-domain-card p{font-size:11px;color:#7b8094;margin-top:4px;line-height:1.5}.dlb-home-panels{display:grid;grid-template-columns:1.2fr 1fr .9fr;gap:14px;margin-top:21px}.dlb-panel{background:#fff;border-radius:13px;padding:18px 19px;box-shadow:0 1px 4px #23253607,0 0 0 1px #23253605;min-width:0}.dlb-panel .dlb-section-head h2{font-size:18px}.dlb-topic-row{display:flex;align-items:center;gap:13px;padding:15px 0;border-bottom:1px solid #f0f0f5}.dlb-topic-row:last-child{border:0;padding-bottom:0}.dlb-topic-row>span:last-child{color:#9a96b1;margin-left:auto}.dlb-topic-row h3{font-size:14px;line-height:1.6;font-weight:600}.dlb-topic-row p{font-size:12px;line-height:1.65;margin-top:4px;color:#74798c}.dlb-topic-art{height:66px;width:86px;border-radius:8px;flex-shrink:0;display:grid;place-items:center;background:linear-gradient(140deg,#d8d8e8,#60617e);color:#fff;position:relative;overflow:hidden}.dlb-topic-art:after{content:"";position:absolute;width:90px;height:70px;border:1px solid #ffffff40;border-radius:50%;transform:rotate(-40deg);right:-18px;bottom:-28px}.dlb-topic-art-1{background:linear-gradient(145deg,#d9d0c9,#a99c8d)}.dlb-topic-art-2{background:linear-gradient(145deg,#b6bcc4,#6b7788)}.dlb-topic-art-3{background:linear-gradient(145deg,#d9d6e7,#9790ad)}.dlb-topic-art svg{width:30px;height:30px}.dlb-mini-map{position:relative;height:192px;max-width:360px;margin:0 auto;font-size:11px}.dlb-map-root{position:absolute;top:79px;left:50%;transform:translateX(-50%);background:#7663bd;color:#fff;border-radius:30px;padding:9px 12px;white-space:nowrap;font-size:12px;z-index:1}.dlb-map-node{position:absolute;background:#f5f2fd;color:#5b527c;border-radius:11px;padding:7px 0;text-align:center;width:67px}.dlb-map-node:after{content:"";position:absolute;width:40px;border-top:1px solid #d5cceb;left:100%;top:50%;transform-origin:left center}.dlb-node-0{top:12px;left:0}.dlb-node-1{top:55px;left:0}.dlb-node-2{top:105px;left:0}.dlb-node-3{top:151px;left:0}.dlb-node-4{top:12px;right:0}.dlb-node-5{top:55px;right:0}.dlb-node-6{top:105px;right:0}.dlb-node-7{top:151px;right:0}.dlb-node-0:after{transform:rotate(49deg);width:80px}.dlb-node-1:after{transform:rotate(20deg)}.dlb-node-2:after{transform:rotate(-20deg)}.dlb-node-3:after{transform:rotate(-49deg);width:80px}.dlb-mini-map .dlb-map-node:nth-last-child(-n+4):after{left:auto;right:100%;transform-origin:right center}.dlb-node-4:after{transform:rotate(-49deg);width:80px}.dlb-node-5:after{transform:rotate(-20deg)}.dlb-node-6:after{transform:rotate(20deg)}.dlb-node-7:after{transform:rotate(49deg);width:80px}.dlb-research-resources{display:grid;grid-template-columns:100px 1fr 1fr;align-items:center;gap:16px}.dlb-research-resources>h2{font-size:18px}.dlb-research-resources>a{display:flex;gap:15px;align-items:center;background:#fff;padding:15px 19px;border-radius:11px;box-shadow:0 1px 3px #23253607,0 0 0 1px #23253605}.dlb-research-resources h3{font-size:15px;font-weight:600}.dlb-research-resources p{font-size:12px;color:#777e92;margin-top:3px}.dlb-research-resources>a>span:last-child{margin-left:auto;color:#8e83af}.dlb-page-heading{margin:4px 0 22px;color:#74798b;font-size:12px}.dlb-page-heading h1{font-size:30px;line-height:1.4;font-weight:650;color:#242536;margin-top:16px}.dlb-page-heading p{font-size:14px;line-height:1.8;margin-top:10px;color:#74798b}.dlb-breadcrumb:hover{color:#6659b8}.dlb-filter-chips{display:flex;gap:8px;flex-wrap:wrap;margin:8px 0 28px}.dlb-filter-chips a{display:inline-flex;align-items:center;min-height:40px;background:#fff;border-radius:8px;padding:7px 15px;color:#5f657a;font-size:13px;border:1px solid #e7e8ef}.dlb-filter-chips a[aria-current]{background:#ebe7fa;color:#5b4ca1;border-color:#d9d0f2}.dlb-results-heading{display:flex;justify-content:space-between;align-items:center;gap:15px;margin:20px 0 16px}.dlb-results-heading h2{font-size:20px}.dlb-results-heading span{font-size:12px;color:#7e8495}.dlb-resource-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}.dlb-resource{position:relative;min-width:0;background:#fff;border-radius:12px;box-shadow:0 1px 4px #22233606,0 0 0 1px #23253607;overflow:hidden}.dlb-resource-link{display:flex;align-items:flex-start;gap:14px;padding:24px 22px 48px;min-height:224px;height:100%;transition:background-color .15s}.dlb-resource-link:hover{background:#fcfbff}.dlb-resource-link>span:nth-child(2){min-width:0;flex:1}.dlb-resource small{display:block;font-size:11px;letter-spacing:.3px;color:#80749f;margin-bottom:9px}.dlb-resource h3{font-size:16px;line-height:1.7;font-weight:600;overflow-wrap:anywhere}.dlb-resource p{font-size:12px;line-height:1.8;color:#777e91;margin-top:10px;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}.dlb-resource-meta{display:block;font-size:11px;color:#777c90;margin-top:13px}.dlb-file-icon{display:grid;place-items:center;width:36px;height:40px;color:#9c8dc0;background:#f7f5fc;border-radius:7px;flex-shrink:0}.dlb-arrow{font-size:16px;color:#a89fbd}.dlb-save{position:absolute;bottom:9px;right:13px}.dlb-icon-button{display:grid;place-items:center;width:40px;height:40px;border:0;border-radius:8px;background:transparent;color:#9995ac}.dlb-icon-button:hover,.dlb-icon-button[aria-pressed=true]{background:#f3effc;color:#6654ad}.dlb-icon-button svg{width:18px;height:18px}.dlb-icon-button[aria-pressed=true] svg{fill:#e8e0fa}.dlb-topics-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}.dlb-topic-card{background:#fff;border-radius:14px;padding:28px;box-shadow:0 2px 8px #22233606,0 0 0 1px #23253607;transition:box-shadow .15s}.dlb-topic-card:hover{box-shadow:0 8px 22px #47356f12}.dlb-topic-number{font-size:12px;font-weight:600;color:#a69bc3;letter-spacing:2px;display:block;margin-bottom:28px}.dlb-topic-card h2{font-size:21px;line-height:1.5}.dlb-topic-card p{font-size:14px;line-height:1.9;color:#777c91;margin:12px 0 24px}.dlb-text-link{display:inline-block;color:#6657a6!important;font-size:13px;min-height:40px;padding:10px 0}.dlb-context-note{display:flex;align-items:center;flex-wrap:wrap;gap:16px;background:#eeebf7;border-radius:12px;padding:22px;margin-bottom:24px}.dlb-context-note>span{color:#7d68bb}.dlb-context-note>div{flex:1;min-width:180px}.dlb-context-note p{font-size:12px;color:#6d6683;margin-top:3px}.dlb-reader-layout{display:grid;grid-template-columns:minmax(0,1fr) 280px;gap:24px;margin-top:20px;align-items:start}.dlb-reader{padding:38px 42px;background:#fff;border-radius:14px;box-shadow:0 1px 6px #22233606}.dlb-reader h1{font-size:29px;line-height:1.5;color:#272639;overflow-wrap:anywhere}.dlb-reader-kicker{color:#8471b2;font-size:12px;margin-bottom:12px}.dlb-reader-meta{display:flex;gap:16px;flex-wrap:wrap;color:#7f8093;font-size:12px;margin:17px 0}.dlb-reader-actions{display:flex;gap:10px;flex-wrap:wrap;margin:24px 0 28px;padding-bottom:26px;border-bottom:1px solid #efedf5}.dlb-reader-actions .dlb-button{font-size:12px;padding:10px 14px}.dlb-reader h2{font-size:20px;margin:25px 0 16px}.dlb-prose{font-size:16px;line-height:2.05;color:#414559;max-width:820px;overflow-wrap:anywhere}.dlb-prose p{margin:16px 0}.dlb-skill-text{font:14px/2 -apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",sans-serif;white-space:pre-wrap;overflow-wrap:anywhere;background:transparent;border:0;padding:0;max-height:none;color:#45435a}.dlb-reading-note{background:#f5f3fa;border-radius:9px;padding:16px 19px;color:#716981;font-size:13px;line-height:1.9;margin:20px 0}.dlb-provenance{margin-top:35px;border-top:1px solid #eeecf3;font-size:12px;padding-top:15px;color:#78738a}.dlb-provenance summary{cursor:pointer;min-height:40px;display:list-item;line-height:40px}.dlb-provenance dl{display:grid;grid-template-columns:90px 1fr;gap:8px;margin:15px 0}.dlb-provenance dd{margin:0;overflow-wrap:anywhere}.dlb-provenance code{font-size:11px}.dlb-reader-side{padding-top:8px;min-width:0}.dlb-reader-side>h2{font-size:16px;margin:8px 0 13px}.dlb-reader-side>h2:not(:first-child){margin-top:30px}.dlb-related-domain{display:flex;gap:10px;align-items:center;min-height:48px;padding:10px 15px;background:#efecf7;color:#6a5d8c!important;margin:8px 0;border-radius:8px;font-size:13px}.dlb-related-domain svg{width:18px;height:18px}.dlb-related-domain>span{margin-left:auto}.dlb-resource-compact{margin:10px 0}.dlb-resource-compact .dlb-resource-link{padding:17px 16px 42px;min-height:120px;gap:10px}.dlb-resource-compact .dlb-file-icon{display:none}.dlb-resource-compact h3{font-size:13px}.dlb-resource-compact small{font-size:10px;margin-bottom:5px}.dlb-map-workspace{padding:24px;background:#fff;border-radius:14px}.dlb-map-toolbar{display:flex;align-items:center;gap:10px;flex-wrap:wrap;font-size:13px;color:#7a728b}.dlb-map-toolbar p{margin-right:auto}.dlb-map-center{background:#6c5bb5;color:#fff;max-width:360px;margin:30px auto 35px;text-align:center;border-radius:16px;padding:23px}.dlb-map-center h2{font-size:22px;color:#fff;margin:8px 0}.dlb-map-center p{font-size:12px;color:#e6def9}.dlb-map-branches{display:grid;grid-template-columns:1fr 1fr;gap:16px;align-items:start}.dlb-map-branch{background:#faf9fd;border-radius:11px;border:1px solid #ece8f6;overflow:hidden}.dlb-map-branch summary{padding:16px;display:flex;align-items:center;gap:14px;cursor:pointer;list-style:none}.dlb-map-branch summary::-webkit-details-marker{display:none}.dlb-map-branch strong{display:block;font-size:15px}.dlb-map-branch small{display:block;font-size:11px;color:#817a90;margin-top:3px}.dlb-map-expand{margin-left:auto;color:#a79bbc;font-size:20px}.dlb-map-branch[open] .dlb-map-expand{transform:rotate(45deg)}.dlb-map-leaves{padding:0 19px 16px}.dlb-map-leaves a{display:flex;gap:15px;justify-content:space-between;padding:13px 0;border-bottom:1px solid #eeebf4;font-size:13px}.dlb-map-leaves a:hover{color:var(--dlb-accent)}.dlb-map-leaves a:last-child{border:0}.dlb-empty{text-align:center;padding:65px 25px;background:#fff;border-radius:14px;margin-top:20px}.dlb-empty-icon{display:grid;place-items:center;width:70px;height:70px;border-radius:50%;background:#f1edfa;color:#9c8cc5;margin:0 auto 19px}.dlb-empty-icon svg{width:30px;height:30px}.dlb-empty h2{font-size:21px}.dlb-empty p{font-size:14px;color:#7e7a8e;margin:12px 0 26px}.dlb-clear-history{margin-top:20px}.dlb-footer{display:flex;justify-content:space-between;gap:15px;flex-wrap:wrap;font-size:11px;line-height:1.8;color:#818498;padding:20px 0 25px;margin-top:28px;border-top:1px solid #e5e6ed}.dlb-toast{position:fixed;bottom:30px;left:50%;transform:translateX(-50%);z-index:999999;border-radius:10px;padding:13px 22px;box-shadow:0 6px 25px #24233222;background:#302a43;color:#fff;font-size:14px;max-width:calc(100vw - 32px);text-align:center}.dlb-sr-only{position:absolute!important;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap}
@media(min-width:1700px){.dlb-main{padding:30px 40px 0}.dlb-hero{min-height:300px}.dlb-hero h1{font-size:42px}.dlb-hero-copy{padding:40px 46px}.dlb-domain-card{min-height:92px;padding:18px}.dlb-domain-card h3{font-size:16px}.dlb-domain-card p{font-size:12px}.dlb-home-panels{gap:20px}.dlb-panel{padding:23px}.dlb-topic-row h3{font-size:15px}.dlb-topic-art{width:100px;height:72px}}
@media(max-width:1399px){.dlb-app{grid-template-columns:232px minmax(0,1fr)}.dlb-main{padding:24px 24px 0}.dlb-sidebar{padding:28px 13px}.dlb-domain-grid{grid-template-columns:repeat(5,minmax(0,1fr))}.dlb-domain-card{flex-direction:column;align-items:flex-start;gap:10px;padding:15px}.dlb-domain-card p{font-size:11px}.dlb-hero-copy{width:69%;padding:30px}.dlb-hero h1{font-size:35px}.dlb-hero p{font-size:16px}.dlb-home-panels{grid-template-columns:1fr 1fr}.dlb-map-panel{grid-column:1/-1}.dlb-mini-map{height:160px;max-width:520px}.dlb-map-root{top:65px}.dlb-map-node{width:80px}.dlb-node-0,.dlb-node-4{top:0}.dlb-node-1,.dlb-node-5{top:40px}.dlb-node-2,.dlb-node-6{top:80px}.dlb-node-3,.dlb-node-7{top:120px}.dlb-resource-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.dlb-reader-layout{grid-template-columns:minmax(0,1fr) 240px;gap:18px}.dlb-reader{padding:30px}.dlb-research-resources{grid-template-columns:1fr 1fr}.dlb-research-resources>h2{grid-column:1/-1}.dlb-topics-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:1099px){.dlb-app{grid-template-columns:208px minmax(0,1fr)}.dlb-brand{padding-left:5px;gap:9px}.dlb-brand strong{font-size:16px}.dlb-brand-mark{width:37px;height:40px}.dlb-nav a{padding-left:12px;gap:11px;font-size:14px}.dlb-main{padding:20px 20px 0}.dlb-hero-copy{width:85%}.dlb-hero-art{opacity:.4;width:65%}.dlb-domain-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.dlb-domain-card{flex-direction:row;align-items:center;min-height:80px}.dlb-home-panels{grid-template-columns:1fr}.dlb-map-panel{grid-column:auto}.dlb-mini-map{max-width:400px}.dlb-resource-link{padding:19px 16px 45px;gap:10px}.dlb-file-icon{display:none}.dlb-reader-layout{grid-template-columns:1fr}.dlb-reader-side{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.dlb-reader-side>h2,.dlb-reader-side>.dlb-text-link{grid-column:1/-1}.dlb-reader-side>h2:not(:first-child){margin-top:16px}.dlb-resource-compact{margin:0}.dlb-map-branches{grid-template-columns:1fr}}
@media(max-width:767px){.dlb-app{display:block;min-height:calc(100vh - 64px);font-size:14px}.dlb-sidebar{position:relative;top:0;height:auto;overflow:visible;padding:14px 18px;border-right:0;border-bottom:1px solid var(--dlb-line);display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:0}.dlb-brand{padding:0}.dlb-brand strong{font-size:16px}.dlb-brand small{font-size:10px}.dlb-brand-mark{width:36px;height:38px;border-radius:9px}.dlb-brand-mark svg{width:24px;height:24px}.dlb-mobile-toggle{display:flex;align-items:center;justify-content:center;gap:8px;border:1px solid #e1dbe9;background:#fff;color:#615580;border-radius:8px;min-height:40px;padding:7px 11px;font-size:12px}.dlb-nav{display:none;flex-basis:100%;padding-top:10px}.dlb-sidebar.is-open .dlb-nav{display:grid;grid-template-columns:1fr 1fr;gap:12px}.dlb-nav-group{padding:12px 0 0;margin:0;border:0}.dlb-nav-group:last-child{grid-column:1/-1;display:grid;grid-template-columns:1fr 1fr;gap:8px}.dlb-nav-group:last-child .dlb-group-label{grid-column:1/-1}.dlb-nav a{font-size:13px;gap:9px;padding:9px 10px;min-height:44px}.dlb-nav a svg{width:20px;height:20px}.dlb-group-label{padding-left:11px}.dlb-sidebar-foot{display:none}.dlb-main{padding:16px 16px 0}.dlb-hero{min-height:250px;border-radius:13px}.dlb-hero-copy{width:100%;padding:26px 24px}.dlb-hero-art{opacity:.22;width:95%;right:-35%}.dlb-eyebrow{font-size:9px;letter-spacing:1.8px;margin-bottom:13px}.dlb-hero h1{font-size:29px;letter-spacing:0;line-height:1.4}.dlb-hero p{font-size:14px;max-width:250px;line-height:1.9;margin-top:8px}.dlb-hero-actions{gap:9px;margin-top:23px}.dlb-hero-actions .dlb-button{font-size:12px;padding:10px 14px}.dlb-search{margin:15px 0 22px;padding-left:13px;gap:8px;min-height:50px}.dlb-search input[type=search]{font-size:13px}.dlb-search button{font-size:12px;min-width:48px}.dlb-section-head h2{font-size:19px}.dlb-section-head>a{font-size:11px}.dlb-domain-grid{gap:9px}.dlb-domain-card{padding:13px 11px;gap:9px;min-height:78px}.dlb-icon-tile{width:35px;height:38px;border-radius:8px}.dlb-icon-tile svg{width:21px;height:21px}.dlb-domain-card h3{font-size:13px}.dlb-domain-card p{font-size:10px;margin-top:4px}.dlb-home-panels{gap:15px;margin-top:25px}.dlb-panel{padding:19px 17px}.dlb-topic-row{gap:12px}.dlb-topic-art{width:74px;height:62px}.dlb-topic-row h3{font-size:14px}.dlb-topic-row p{font-size:12px}.dlb-mini-map{max-width:300px;height:185px}.dlb-map-root{top:76px}.dlb-node-0,.dlb-node-4{top:0}.dlb-node-1,.dlb-node-5{top:47px}.dlb-node-2,.dlb-node-6{top:94px}.dlb-node-3,.dlb-node-7{top:141px}.dlb-mini-map .dlb-map-node{width:68px}.dlb-research-resources{grid-template-columns:1fr;gap:10px}.dlb-research-resources>a{padding:17px 16px}.dlb-research-resources h3{font-size:15px}.dlb-research-resources p{font-size:12px}.dlb-research-resources>h2{margin-bottom:4px}.dlb-page-heading{margin:3px 0 20px}.dlb-page-heading h1{font-size:26px;margin-top:15px}.dlb-page-heading p{font-size:13px}.dlb-filter-chips{gap:7px;margin-bottom:24px}.dlb-filter-chips a{padding:7px 12px;font-size:12px;min-height:40px}.dlb-resource-grid,.dlb-topics-grid{grid-template-columns:1fr;gap:13px}.dlb-resource-link{padding:20px 20px 46px;min-height:195px}.dlb-resource h3{font-size:16px}.dlb-resource p{font-size:13px}.dlb-resource-meta{font-size:11px}.dlb-topic-card{padding:23px}.dlb-topic-number{margin-bottom:20px}.dlb-topic-card h2{font-size:20px}.dlb-context-note{padding:20px 17px;gap:12px}.dlb-context-note>div{min-width:180px}.dlb-context-note .dlb-button{flex:1;min-width:130px;font-size:12px}.dlb-reader{padding:25px 21px}.dlb-reader h1{font-size:24px;line-height:1.6}.dlb-reader-meta{font-size:11px;gap:8px 16px}.dlb-reader-actions{gap:8px}.dlb-reader-actions .dlb-button{min-height:42px;padding:10px 12px}.dlb-prose{font-size:15px;line-height:2}.dlb-reading-note{padding:14px;font-size:12px}.dlb-skill-text{font-size:13px;line-height:2}.dlb-reader-side{grid-template-columns:1fr}.dlb-reader-side>h2{grid-column:auto}.dlb-reader-side>.dlb-text-link{grid-column:auto}.dlb-provenance dl{grid-template-columns:70px 1fr}.dlb-map-workspace{padding:18px 13px}.dlb-map-toolbar p{width:100%;flex-basis:100%;margin-bottom:6px}.dlb-map-toolbar .dlb-button{min-height:40px;padding:8px 12px;font-size:12px}.dlb-map-center{padding:20px 15px;margin:25px 0}.dlb-map-center h2{font-size:20px}.dlb-map-branch summary{padding:14px;gap:10px}.dlb-map-branch strong{font-size:14px}.dlb-map-branch small{font-size:10px}.dlb-map-leaves{padding-left:15px;padding-right:15px}.dlb-map-leaves a{font-size:12px;min-height:44px}.dlb-footer{font-size:10px;gap:5px;margin-top:25px;padding-bottom:24px}.dlb-footer span{width:100%}}
@media(max-width:359px){.dlb-main{padding:12px 12px 0}.dlb-sidebar{padding:12px}.dlb-hero-copy{padding:24px 20px}.dlb-hero h1{font-size:26px}.dlb-hero-actions .dlb-button{padding:10px 11px}.dlb-domain-card{flex-direction:column;align-items:flex-start;gap:8px}.dlb-domain-card p{font-size:10px}.dlb-brand strong{font-size:15px}}
@media(prefers-reduced-motion:reduce){.dlb-app *{transition:none!important;scroll-behavior:auto!important}.dlb-app button:active,.dlb-button:active{transform:none}}
@media print{.dlb-sidebar,.dlb-search,.dlb-reader-side,.dlb-reader-actions,.dlb-save,.dlb-toast,.dlb-footer{display:none!important}.dlb-app,.dlb-reader-layout{display:block}.dlb-main,.dlb-reader{padding:0}.dlb-app{background:#fff}.dlb-provenance{display:none}}

/* Reading refinements after visual review. */
.dlb-app{background:linear-gradient(to right,#fff 252px,var(--dlb-bg) 252px)}
.dlb-domain-card p{font-size:12px;color:#697086}.dlb-resource-meta{font-size:12px;color:#6c7285}.dlb-domain-card{gap:10px}
.dlb-skill-prose h2{font-size:22px;margin:26px 0 15px}.dlb-skill-prose h3{font-size:18px;margin:27px 0 12px}.dlb-skill-prose li{margin:10px 0;padding-left:3px}.dlb-skill-prose ul,.dlb-skill-prose ol{padding-left:24px}.dlb-skill-prose code{background:#f3f0f8;border-radius:4px;padding:2px 5px;font:13px/1.8 monospace;overflow-wrap:anywhere}
@media(max-width:1399px){.dlb-app{background:linear-gradient(to right,#fff 232px,var(--dlb-bg) 232px)}}
@media(max-width:1099px){.dlb-app{background:linear-gradient(to right,#fff 208px,var(--dlb-bg) 208px)}}
@media(max-width:767px){.dlb-app{background:var(--dlb-bg)}.dlb-hero p{max-width:none;text-wrap:balance}.dlb-domain-card p{font-size:11px}.dlb-skill-prose h2{font-size:21px}.dlb-skill-prose h3{font-size:17px}}

/* Keep site-wide controls available in the page footer, clear of reading content. */
.dlb-app svg,.dlb-app svg path,.dlb-app svg rect,.dlb-app svg circle{fill:none!important}
body.zmt-dlb-page>.baiye-skip{position:absolute;width:1px;height:1px;overflow:hidden;clip-path:inset(50%);white-space:nowrap}
body.zmt-dlb-page>.baiye-skip:focus{position:fixed;top:10px;left:10px;width:auto;height:auto;clip-path:none;padding:10px 18px;z-index:999999;background:#fff;color:#302542}
body.zmt-dlb-page .dlb-global-tools{display:flex;justify-content:flex-end;align-items:center;flex-wrap:wrap;gap:12px;padding:18px 28px;margin-left:252px;background:#f6f7fb}
body.zmt-dlb-page .guide-shell[data-guide-shadow-mount]{position:static!important;inset:auto!important;transform:none!important;width:auto!important;height:auto!important}
body.zmt-dlb-page .guide-shell[data-guide-shadow-mount]>.guide-shell__launcher{position:static!important;inset:auto!important;transform:none!important;display:inline-flex!important;align-items:center;justify-content:center;width:auto!important;min-width:100px!important;height:44px!important;min-height:44px!important;padding:0 16px!important;margin:0!important;border:1px solid #e0daed!important;border-radius:9px!important;background:#fff!important;box-shadow:none!important;cursor:pointer!important}
body.zmt-dlb-page .guide-shell__launcher>*,body.zmt-dlb-page .guide-shell__launcher:before{display:none!important}
body.zmt-dlb-page .guide-shell__launcher:after{content:'站内向导';display:block;color:#675780;font:13px/1.5 -apple-system,sans-serif}
body.zmt-dlb-page .float-right.position-bottom{position:static!important;inset:auto!important;transform:none!important;display:flex!important;align-items:center;justify-content:center;gap:8px;width:auto!important;margin:0!important;opacity:1!important}
body.zmt-dlb-page .zmt-contact-floating{position:static!important;inset:auto!important;transform:none!important;display:flex!important;justify-content:center;width:auto!important;margin:0!important}
body.zmt-dlb-page .zmt-contact-launcher{box-shadow:none!important;min-height:44px!important;border-radius:9px!important}
@media(max-width:1399px){body.zmt-dlb-page .dlb-global-tools{margin-left:232px}}
@media(max-width:1099px){body.zmt-dlb-page .dlb-global-tools{margin-left:208px}}
@media(max-width:767px){body.zmt-dlb-page .dlb-global-tools{margin-left:0;justify-content:center;padding:16px;gap:10px}}
body.zmt-dlb-page .dlb-global-tools .guide-shell[data-guide-shadow-mount]>.guide-shell__launcher>.guide-shell__launcher-character,body.zmt-dlb-page .dlb-global-tools .guide-shell[data-guide-shadow-mount]>.guide-shell__launcher>.guide-shell__launcher-copy{display:none!important}
/* 1.1 reading and chapter system */
.dlb-app select{font:inherit;color:var(--dlb-ink);max-width:100%;background:#fff;border:1px solid #dcdce8;border-radius:7px;min-height:44px;padding:7px 10px}.dlb-app :is(a,button,summary,select):focus-visible{outline:3px solid #8672dd;outline-offset:3px}.dlb-app small,.dlb-domain-card p,.dlb-resource-meta,.dlb-sidebar-foot{font-size:12px;color:#62677b}.dlb-icon-button{min-width:44px;min-height:44px}.dlb-search-v11{display:block;padding:10px 14px}.dlb-search-line{display:flex;gap:12px;align-items:center}.dlb-search-filters{display:flex;gap:16px;flex-wrap:wrap;padding-top:10px;border-top:1px solid #eeeef4;margin-top:5px}.dlb-search-filters label{display:flex;align-items:center;gap:7px;font-size:12px}.dlb-search-filters select{font-size:12px;max-width:215px}.dlb-search button{min-height:44px}.dlb-chapter-domains{margin:22px 0}.dlb-chapter-tabs{display:flex;gap:10px;flex-wrap:wrap;margin:20px 0}.dlb-chapter-tabs a{display:flex;gap:12px;padding:12px 17px;border-radius:10px;background:#fff;box-shadow:0 1px 4px #2325360a;min-height:48px}.dlb-chapter-tabs a[aria-current]{background:#ece7fb;color:#5540a2}.dlb-chapter-tabs small{color:inherit}.dlb-reader-layout{grid-template-columns:minmax(0,1fr) 260px;align-items:start}.dlb-reader{padding:32px;min-width:0;overflow-wrap:anywhere}.dlb-reader h1{line-height:1.4}.dlb-reader-meta{line-height:1.8;font-size:13px;overflow-wrap:anywhere}.dlb-reader-controls{display:flex;gap:12px;align-items:center;flex-wrap:wrap;margin:24px 0}.dlb-reader-controls>span{font-size:12px;color:#666078}.dlb-full-prose{font-size:var(--reader-font,18px);line-height:1.9;max-width:760px;margin:auto;color:#343747}.dlb-prose p{margin:1em 0}.dlb-prose h1,.dlb-prose h2,.dlb-prose h3,.dlb-prose h4{font-size:1.3em;line-height:1.5;margin:1.6em 0 .6em;scroll-margin-top:105px;overflow-wrap:anywhere}.dlb-prose h1{font-size:1.5em}.dlb-prose h3{font-size:1.1em}.dlb-prose ul,.dlb-prose ol{padding-left:1.5em;margin:1em 0}.dlb-prose li{margin:.4em 0}.dlb-prose a{color:#5c47ab;text-decoration:underline;text-underline-offset:3px;overflow-wrap:anywhere}.dlb-prose img{display:block;max-width:100%;height:auto;margin:24px auto;outline:1px solid rgba(0,0,0,.1);border-radius:6px}.dlb-prose pre{font:13px/1.75 ui-monospace,monospace;background:#f5f4fa;border-radius:10px;padding:18px;overflow-x:auto;max-width:100%;white-space:pre;overflow-wrap:normal}.dlb-prose code{font-family:ui-monospace,monospace;font-size:.85em;background:#f1eef8;padding:2px 4px;border-radius:4px}.dlb-prose pre code{padding:0;background:none}.dlb-prose table{display:block;overflow-x:auto;border-collapse:collapse;font-size:14px;max-width:100%;margin:20px 0}.dlb-prose td,.dlb-prose th{padding:10px 13px;border:1px solid #dedeea;min-width:100px;text-align:left}.dlb-prose th{background:#f3f0fa}.dlb-prose blockquote{margin:20px 0;padding:16px 20px;background:#f5f2fb;border:0;border-radius:10px}.dlb-desktop-toc{padding:18px;background:#fff;border-radius:12px;margin-bottom:24px;box-shadow:0 1px 4px #23253609}.dlb-desktop-toc summary{font-weight:600;min-height:44px;cursor:pointer}.dlb-desktop-toc nav{max-height:46vh;overflow-y:auto}.dlb-desktop-toc a,.dlb-mobile-toc a{display:block;font-size:13px;padding:8px 4px;line-height:1.6;min-height:36px;overflow-wrap:anywhere}.dlb-desktop-toc a[data-toc-level="3"]{padding-left:15px}.dlb-desktop-toc a[data-toc-level="4"]{padding-left:24px}.dlb-mobile-toc{display:none}.dlb-document-list{display:flex;gap:8px;flex-wrap:wrap;margin-top:12px}.dlb-document-list a{padding:8px 12px;border-radius:7px;background:#f4f1fa;min-height:44px;font-size:13px;overflow-wrap:anywhere}.dlb-document-list a[aria-current]{background:#e5ddf7;color:#4e398b}.dlb-reader-pagination{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;margin:30px 0}.dlb-reader-pagination a{padding:15px;background:#f7f5fb;border-radius:10px;font-size:14px;line-height:1.7}.dlb-reader-pagination small{display:block;color:#6d5c9a;margin-bottom:5px}.dlb-reading-path{margin:20px 0}.dlb-reading-path>p{color:#62677b;margin-top:8px}.dlb-reading-path ol{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px 28px;padding-left:22px;margin:20px 0 0}.dlb-reading-path li{padding:10px 5px;font-size:14px}.dlb-reading-path li small{display:block;color:#62677b}.dlb-pagination{display:flex;gap:8px;flex-wrap:wrap;margin:24px 0}.dlb-pagination a{display:grid;place-items:center;min-width:44px;min-height:44px;background:#fff;border-radius:8px}.dlb-pagination a[aria-current]{background:#6659b8;color:#fff}.dlb-search-hit{background:#f0e9ff;outline:4px solid #f0e9ff;border-radius:4px}.dlb-map-toolbar{flex-wrap:wrap;gap:10px}.dlb-map-toolbar label{font-size:13px}.dlb-map-toolbar [role=status]{font-size:12px}.dlb-map-toolbar button[aria-pressed=true]{background:#ece6fc;color:#513e94}.dlb-app #dlb-markmap{width:100%;height:620px;min-height:420px;background:#fcfbff;border-radius:12px}.dlb-app .markmap{font-family:inherit}.dlb-app .markmap svg{width:100%;height:100%}.dlb-outline-chapter{padding:10px 0}.dlb-outline-chapter summary{min-height:44px;font-weight:600;cursor:pointer}.dlb-outline-chapter a{font-size:14px}.dlb-resource-meta{line-height:1.8}.dlb-reader-side .dlb-resource-link{padding-right:36px}.dlb-reader-side .dlb-resource h3{font-size:13px}.dlb-reader-side .dlb-save{right:0}.dlb-reader-side{position:sticky;top:105px}.dlb-resource-link>span:nth-child(2){min-width:0}.dlb-provenance dd{overflow-wrap:anywhere}.dlb-map-branch summary{min-height:48px}.dlb-map-leaves a{min-height:44px}
@media(min-width:1600px){.dlb-reader-layout{grid-template-columns:minmax(0,940px) minmax(250px,1fr)}}
@media(max-width:1150px){.dlb-reader-layout{grid-template-columns:minmax(0,1fr)}.dlb-reader-side{position:static}.dlb-desktop-toc{display:none}.dlb-mobile-toc{display:block}.dlb-reader-side .dlb-resource{max-width:100%}}
@media(max-width:767px){.dlb-reader{padding:22px 16px}.dlb-reader h1{font-size:25px}.dlb-full-prose{font-size:var(--reader-font,18px)}.dlb-search-filters{gap:8px}.dlb-search-filters label{flex:1 1 45%;display:block}.dlb-search-filters select{display:block;width:100%;max-width:none;margin-top:4px}.dlb-reader-actions{gap:8px}.dlb-reader-actions .dlb-button{padding:10px 12px;font-size:13px}.dlb-reader-pagination,.dlb-reading-path ol{grid-template-columns:1fr}.dlb-chapter-tabs{display:grid;grid-template-columns:1fr}.dlb-app #dlb-markmap{height:480px}.dlb-map-workspace{padding:16px 12px}.dlb-reader-side{margin-top:16px}.dlb-document-list{display:block}.dlb-document-list a{display:block;margin:7px 0}.dlb-prose pre{font-size:12px;padding:12px}}
@media(prefers-reduced-motion:reduce){.dlb-app *{transition:none!important;scroll-behavior:auto!important}}
.dlb-app #dlb-markmap line{pointer-events:none}
.dlb-app #dlb-markmap .markmap-node>circle{pointer-events:all;fill:#fff;stroke:#6659b8}.dlb-app #dlb-markmap .markmap-fold>circle{fill:#6659b8}
.dlb-app #dlb-markmap .markmap-node>circle{fill:#fff!important}.dlb-app #dlb-markmap .markmap-fold>circle{fill:#6659b8!important}