.ddb-root{--ddb-bg: #0C0F14;--ddb-surface: #141920;--ddb-surface2: #1A2130;--ddb-border: #252E3D;--ddb-ink: #E2EAF4;--ddb-muted: #7D8FA3;--ddb-amber: #C4A060;background:var(--ddb-bg);color:var(--ddb-ink);min-height:100vh;font-family:var(--sans)}.ddb-root[data-page-theme=light]{--ddb-bg: #F5F1EC;--ddb-surface: #FFFFFF;--ddb-surface2: #F0EDE8;--ddb-border: #DDD8D0;--ddb-ink: #1A1612;--ddb-muted: #6B6057}.ddb-hero{padding:80px var(--page-pad) 60px;border-bottom:1px solid var(--ddb-border)}.ddb-hero-inner{display:grid;grid-template-columns:1fr 1fr;gap:60px;max-width:1200px;margin:0 auto}.ddb-eyebrow{font:.72rem/1 var(--mono);letter-spacing:.1em;text-transform:uppercase;color:var(--ddb-muted);margin-bottom:16px;display:block}.ddb-hero-title{font:3.4rem/1.1 var(--display);color:var(--ddb-ink);margin-bottom:20px}.ddb-hero-title em{color:#6baab5;font-style:italic}.ddb-hero-sub{font-size:1rem;color:var(--ddb-muted);line-height:1.65;max-width:460px}.ddb-cat-grid{display:flex;flex-direction:column;gap:7px;margin-bottom:20px}.ddb-cat-hero-btn{display:flex;align-items:center;gap:9px;background:#ffffff0a;border:1px solid color-mix(in srgb,var(--chc) 30%,transparent);border-left:3px solid var(--chc);color:var(--chc);padding:9px 14px;border-radius:8px;font:.82rem/1 var(--sans);font-weight:600;cursor:pointer;transition:background .15s;text-align:left;width:100%}.ddb-cat-hero-btn:before{content:"";display:inline-block;width:6px;height:6px;border-radius:50%;background:var(--chc);flex-shrink:0;opacity:.8}.ddb-cat-hero-btn:hover{background:#ffffff14}.ddb-root[data-page-theme=light] .ddb-cat-hero-btn{background:#0000000a}.ddb-root[data-page-theme=light] .ddb-cat-hero-btn:hover{background:#00000014}.ddb-theme-row{display:flex;align-items:center;gap:8px;margin-bottom:20px}.ddb-theme-row-label{font-size:.78rem;color:var(--ddb-muted)}.ddb-theme-btn{background:transparent;border:1px solid var(--ddb-border);color:var(--ddb-muted);padding:5px 12px;border-radius:20px;font:.75rem/1 var(--sans);cursor:pointer;transition:all .15s}.ddb-theme-btn.active{background:#6baab5;border-color:#6baab5;color:#fff}.ddb-coverage-hero{background:var(--ddb-surface);border:1px solid var(--ddb-border);border-radius:10px;padding:16px 18px}.ddb-coverage-label{font-size:.72rem;font-weight:700;text-transform:uppercase;letter-spacing:.08em;color:var(--ddb-muted);margin-bottom:10px;display:block}.ddb-coverage-hero ul{margin:0;padding-left:16px}.ddb-coverage-hero li{font-size:.84rem;color:var(--ddb-muted);line-height:1.55;margin-bottom:5px}.ddb-body{display:grid;grid-template-columns:260px 1fr;min-height:calc(100vh - var(--nav-h))}.ddb-rail{border-right:1px solid var(--ddb-border);position:sticky;top:var(--nav-h);height:calc(100vh - var(--nav-h));overflow-y:auto;padding:20px 0}.ddb-layer-pills{display:flex;flex-direction:column;gap:4px;padding:0 12px 12px;border-bottom:1px solid var(--ddb-border);margin-bottom:12px}.ddb-layer-pill{background:transparent;border:1px solid transparent;color:var(--ddb-muted);padding:7px 12px;border-radius:6px;font:.78rem/1 var(--sans);font-weight:600;cursor:pointer;text-align:left;transition:all .15s}.ddb-layer-pill:hover,.ddb-layer-pill.active{background:color-mix(in srgb,var(--cc) 12%,transparent);border-color:color-mix(in srgb,var(--cc) 30%,transparent);color:var(--cc)}.ddb-stage-list{display:flex;flex-direction:column;gap:2px;padding:0 8px}.ddb-stage-btn{display:grid;grid-template-columns:28px 1fr;align-items:center;gap:8px;width:100%;background:transparent;border:1px solid transparent;border-radius:7px;padding:9px 10px;cursor:pointer;text-align:left;transition:all .15s}.ddb-stage-btn:hover,.ddb-stage-btn.active{background:var(--ddb-surface2);border-color:var(--ddb-border)}.ddb-stage-btn.active{border-color:#6baab559}.ddb-stage-btn.ddb-hidden{display:none}.ddb-snum{font:.68rem/1 var(--mono);color:var(--ddb-muted)}.ddb-sname{font:.79rem/1.3 var(--sans);font-weight:500;color:var(--ddb-ink);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.ddb-panel{padding:32px var(--page-pad)}.ddb-stage-card{background:var(--ddb-surface);border:1px solid var(--ddb-border);border-radius:12px;padding:20px 24px;margin-bottom:16px}.ddb-ctx-badge{display:flex;align-items:center;gap:8px;margin-bottom:12px}.ddb-ctx-icon{font-size:1rem}.ddb-ctx-title{font:.75rem/1 var(--sans);font-weight:600;color:var(--ddb-muted);text-transform:uppercase;letter-spacing:.06em}.ddb-stage-heading{font:700 1.3rem/1.4 var(--sans);color:var(--ddb-ink);margin:0 0 10px;letter-spacing:-.02em}.ddb-stage-intro-text{font:italic .9rem/1.65 var(--sans);color:var(--ddb-muted);margin:0}.ddb-meta-row{display:flex;gap:12px;margin-bottom:16px}.ddb-meta-badge{background:var(--ddb-surface);border:1px solid var(--ddb-border);border-radius:8px;padding:10px 16px;display:flex;flex-direction:column;gap:4px}.ddb-meta-label{font:600 .68rem/1 var(--sans);text-transform:uppercase;letter-spacing:.08em;color:var(--ddb-muted)}.ddb-meta-val{font:700 .88rem/1 var(--sans);color:var(--ddb-ink)}.ddb-prompt{font:1.05rem/1.65 var(--sans);color:var(--ddb-ink);font-style:italic;margin:0}.ddb-tags{display:flex;flex-wrap:wrap;gap:6px;margin-top:14px}.ddb-tag{font:.72rem/1 var(--mono);padding:3px 9px;border-radius:4px;background:#6baab51a;border:1px solid rgba(107,170,181,.25);color:#6baab5}.ddb-content-area{background:var(--ddb-surface);border:1px solid var(--ddb-border);border-radius:12px;overflow:hidden}.ddb-tabs{display:flex;border-bottom:1px solid var(--ddb-border);background:var(--ddb-surface2)}.ddb-tab{background:transparent;border:none;border-bottom:2px solid transparent;padding:12px 20px;font:600 .84rem/1 var(--sans);color:var(--ddb-muted);cursor:pointer;transition:all .15s}.ddb-tab:hover{color:var(--ddb-ink)}.ddb-tab.active{color:#6baab5;border-bottom-color:#6baab5}.ddb-tab--qa{margin-left:auto}.ddb-tab--qa.active{color:var(--ddb-amber);border-bottom-color:var(--ddb-amber)}.ddb-pane{padding:24px 28px}.ddb-concept{margin-bottom:32px}.ddb-concept:last-of-type{margin-bottom:0}.ddb-think{background:#6baab512;border:1px solid rgba(107,170,181,.2);border-left:3px solid #6BAAB5;border-radius:8px;padding:14px 16px;margin-bottom:16px}.ddb-think-label{font:600 .68rem/1 var(--mono);text-transform:uppercase;letter-spacing:.1em;color:#6baab5;display:block;margin-bottom:8px}.ddb-think p{font-size:.9rem;color:var(--ddb-ink);line-height:1.65;margin:0}.ddb-overview-p{font-size:.87rem;color:var(--ddb-ink);line-height:1.7;margin:0 0 16px;white-space:pre-wrap}.ddb-validity{background:#c4a0600d;border:1px solid rgba(196,160,96,.2);border-left:3px solid var(--ddb-amber);border-radius:8px;padding:14px 16px}.ddb-validity-label{font:600 .68rem/1 var(--mono);text-transform:uppercase;letter-spacing:.1em;color:var(--ddb-amber);display:block;margin-bottom:8px}.ddb-validity ul{margin:0;padding-left:16px}.ddb-validity li{font-size:.84rem;color:var(--ddb-muted);line-height:1.55;margin-bottom:10px}.ddb-validity li strong{color:var(--ddb-ink)}.ddb-fix-row{display:flex;align-items:flex-start;gap:8px;margin-top:6px;padding-top:6px;border-top:1px solid rgba(107,170,181,.15)}.ddb-fix-lbl{font:700 .58rem/1 var(--mono);letter-spacing:.1em;text-transform:uppercase;color:#6baab5;background:#6baab51f;border:1px solid rgba(107,170,181,.25);padding:2px 7px;border-radius:3px;flex-shrink:0;margin-top:2px}.ddb-fix-row em{font-size:.81rem;color:var(--ddb-ink);line-height:1.65;font-style:normal}.ddb-formula-wrap{border:1px solid #253040;border-radius:10px;overflow:hidden;margin:0 0 22px;background:#0e1420}.ddb-formula-title{background:#161d2e;padding:8px 16px;display:flex;align-items:center;font:500 .68rem/1 var(--mono);letter-spacing:.05em;color:#7a8fa6;border-bottom:1px solid #253040;margin:0}.ddb-formula-title:before{content:"";display:inline-block;width:11px;height:11px;border-radius:50%;background:#ff5f57;box-shadow:17px 0 #febc2e,34px 0 #28c840;margin-right:48px;flex-shrink:0}.ddb-code-block{display:block;background:#0e1420;padding:18px 22px;font:.8rem/1.9 var(--mono);color:#c8d4e0;white-space:pre;overflow-x:auto}.ddb-qa-section-head{font:600 .7rem/1 var(--sans);text-transform:uppercase;letter-spacing:.1em;color:var(--ddb-muted);margin:0 0 12px}.ddb-qa-note{background:#c4a0600f;border:1px solid rgba(196,160,96,.2);border-radius:10px;padding:18px 20px;margin-bottom:16px}.ddb-qa-note-head{display:flex;align-items:flex-start;gap:8px;margin-bottom:10px}.ddb-qa-star{font-size:.8rem;color:var(--ddb-amber);flex-shrink:0;margin-top:2px}.ddb-qa-lbl{font:700 .75rem/1.4 var(--sans);text-transform:uppercase;letter-spacing:.04em;color:var(--ddb-amber)}.ddb-qa-note p{font-size:.9rem;color:var(--ddb-ink);line-height:1.7;margin:0}.ddb-insight{font:italic clamp(.88rem,1vw,.98rem)/1.7 var(--display);color:var(--ddb-muted);border-left:2px solid rgba(107,170,181,.4);padding-left:16px;margin:20px 0 0}.ddb-stage-data,.ddb-tab-data{display:none!important}@media(max-width:1100px){.ddb-body{grid-template-columns:220px 1fr}}@media(max-width:860px){.ddb-hero-inner{grid-template-columns:1fr;gap:32px}.ddb-body{grid-template-columns:1fr}.ddb-rail{position:static;height:auto;border-right:none;border-bottom:1px solid var(--ddb-border)}.ddb-stage-list{flex-direction:row;flex-wrap:wrap;padding:0 12px}.ddb-stage-btn{width:auto}.ddb-snum{display:none}.ddb-panel{padding:20px var(--page-pad)}}@media(max-width:560px){.ddb-hero-title{font-size:2.4rem}.ddb-pane{padding:16px 18px}.ddb-code-block{padding:14px 16px;font-size:.72rem}}