:root{--bg: #03060d;--bg-soft: #071120;--panel: rgba(9, 19, 33, .74);--panel-solid: #0a1524;--border: rgba(122, 180, 255, .16);--border-strong: rgba(122, 180, 255, .34);--text: #e9f2ff;--dim: #8ba1be;--dimmer: #5f7391;--accent: #4dd6ff;--accent-soft: rgba(77, 214, 255, .14);--warn: #ff5d6c;--ok: #39ff9e;--spike: #ff6b3d;--ace2: #22d3ee;--rna: #39ff9e;--tmprss2: #a855f7;--radius: 14px;--radius-sm: 9px;--shadow: 0 18px 48px rgba(0, 0, 0, .55);--font: "Inter", system-ui, -apple-system, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;--mono: ui-monospace, "SF Mono", "JetBrains Mono", "Cascadia Code", Consolas, monospace}*{box-sizing:border-box}html,body,#root{height:100%;margin:0;padding:0}body{background:var(--bg);color:var(--text);font-family:var(--font);font-size:14px;line-height:1.65;overflow:hidden;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;overscroll-behavior:none}button{font:inherit;color:inherit;background:none;border:none;cursor:pointer}::-webkit-scrollbar{width:8px;height:8px}::-webkit-scrollbar-thumb{background:#7ab4ff38;border-radius:8px}::-webkit-scrollbar-track{background:transparent}#boot-screen{position:fixed;inset:0;z-index:999;display:grid;place-items:center;background:radial-gradient(circle at 50% 45%,#0b1a2e,#03060d 70%);transition:opacity .7s ease,visibility .7s ease}body.app-ready #boot-screen{opacity:0;visibility:hidden}.boot-inner{text-align:center;padding:24px}.boot-inner h1{margin:26px 0 4px;font-size:20px;font-weight:600;letter-spacing:.06em}.boot-sub{margin:0;color:var(--dim);font-size:12px;letter-spacing:.16em;text-transform:uppercase}.boot-virion{position:relative;width:82px;height:82px;margin:0 auto;border-radius:50%;background:radial-gradient(circle at 35% 32%,#ffb184,#d0421e 62%,#7a2410);box-shadow:0 0 34px #ff6b3d73;animation:boot-spin 9s linear infinite}.boot-virion span{position:absolute;left:50%;top:50%;width:7px;height:17px;margin:-8px 0 0 -3.5px;border-radius:4px;background:linear-gradient(180deg,#ffb184,#ff6b3d);transform-origin:50% 49px}.boot-virion span:nth-child(1){transform:rotate(0) translateY(-49px)}.boot-virion span:nth-child(2){transform:rotate(45deg) translateY(-49px)}.boot-virion span:nth-child(3){transform:rotate(90deg) translateY(-49px)}.boot-virion span:nth-child(4){transform:rotate(135deg) translateY(-49px)}.boot-virion span:nth-child(5){transform:rotate(180deg) translateY(-49px)}.boot-virion span:nth-child(6){transform:rotate(225deg) translateY(-49px)}.boot-virion span:nth-child(7){transform:rotate(270deg) translateY(-49px)}.boot-virion span:nth-child(8){transform:rotate(315deg) translateY(-49px)}@keyframes boot-spin{to{transform:rotate(360deg)}}.boot-bar{width:190px;height:2px;margin:22px auto 10px;background:#7ab4ff29;border-radius:2px;overflow:hidden}.boot-bar i{display:block;width:40%;height:100%;background:linear-gradient(90deg,transparent,var(--accent),transparent);animation:boot-slide 1.35s ease-in-out infinite}@keyframes boot-slide{0%{transform:translate(-110%)}to{transform:translate(310%)}}.boot-hint{margin:0;color:var(--dimmer);font-size:11px}.fallback{position:fixed;inset:0;display:grid;place-items:center;padding:32px;text-align:center;color:var(--text)}.app{position:relative;width:100%;height:100%}.canvas-holder{position:absolute;inset:0}.canvas-holder canvas{display:block;touch-action:none}.ui-layer{position:absolute;inset:0;pointer-events:none;display:grid;grid-template-rows:auto 1fr auto;grid-template-columns:minmax(0,1fr)}.ui-layer>*{pointer-events:auto}.ui-middle{display:flex;align-items:flex-start;justify-content:space-between;gap:14px;padding:0 16px;min-height:0;pointer-events:none}.ui-middle>*{pointer-events:auto}.topbar{display:flex;align-items:center;gap:14px;padding:12px 16px;background:linear-gradient(180deg,#03060de6,#03060d00)}.brand{display:flex;align-items:baseline;gap:10px;min-width:0}.brand h1{margin:0;font-size:15px;font-weight:600;letter-spacing:.02em;white-space:nowrap}.brand .brand-en{color:var(--dimmer);font-size:11px;letter-spacing:.14em;text-transform:uppercase;white-space:nowrap}.topbar-spacer{flex:1}.tool-group{display:flex;align-items:center;gap:6px;padding:4px;background:var(--panel);border:1px solid var(--border);border-radius:999px;backdrop-filter:blur(14px)}.tool-btn{display:inline-flex;align-items:center;gap:6px;height:30px;padding:0 12px;border-radius:999px;color:var(--dim);font-size:12.5px;white-space:nowrap;transition:background .16s ease,color .16s ease}.tool-btn:hover{color:var(--text);background:#7ab4ff1a}.tool-btn.is-on{color:var(--bg);background:var(--accent);font-weight:600}.tool-btn .dot{width:6px;height:6px;border-radius:50%;background:currentColor}.fps-chip{font-family:var(--mono);font-size:11px;color:var(--dim);padding:0 10px}.fps-chip b{color:var(--ok);font-weight:600}.fps-chip.is-low b{color:var(--warn)}.panel{background:var(--panel);border:1px solid var(--border);border-radius:var(--radius);backdrop-filter:blur(16px);box-shadow:var(--shadow)}.panel-title{display:flex;align-items:center;gap:8px;margin:0 0 6px;font-size:11px;font-weight:600;letter-spacing:.16em;text-transform:uppercase;color:var(--dimmer)}.info-panel{width:366px;max-width:40vw;max-height:100%;display:flex;flex-direction:column;overflow:hidden}.info-scroll{overflow-y:auto;padding:16px 18px 18px;min-height:0}.step-badge{display:inline-flex;align-items:center;gap:8px;font-family:var(--mono);font-size:11px;color:var(--accent);letter-spacing:.1em}.step-badge span{padding:1px 7px;border:1px solid var(--border-strong);border-radius:5px}.info-panel h2{margin:10px 0 2px;font-size:21px;font-weight:650;letter-spacing:.01em}.info-sub{margin:0 0 12px;color:var(--dim);font-size:12px}.narration{margin:0 0 14px;font-size:13.5px;color:#d3e2f5}.bullets{margin:0 0 14px;padding:0;list-style:none;display:grid;gap:7px}.bullets li{position:relative;padding-left:18px;font-size:12.8px;color:#c3d5ea}.bullets li:before{content:"";position:absolute;left:4px;top:9px;width:5px;height:5px;border-radius:50%;background:var(--accent);box-shadow:0 0 8px var(--accent)}.chips{display:flex;flex-wrap:wrap;gap:6px;margin-bottom:14px}.chip{display:inline-flex;align-items:center;gap:6px;height:26px;padding:0 10px;border:1px solid var(--border);border-radius:999px;font-size:12px;color:#cfe0f3;transition:border-color .15s ease,background .15s ease}.chip:hover{border-color:var(--border-strong);background:#7ab4ff14}.chip.is-active{border-color:currentColor;background:#ffffff0f}.chip i{width:8px;height:8px;border-radius:50%;background:var(--chip-color, var(--accent));box-shadow:0 0 7px var(--chip-color, var(--accent))}.misconception{display:grid;gap:4px;margin:0 0 14px;padding:10px 12px;border-radius:var(--radius-sm);border:1px solid rgba(255,93,108,.28);background:#ff5d6c12;font-size:12.4px}.misconception .wrong,.misconception .right{display:flex;gap:7px}.misconception .tag{flex:none;font-weight:700}.misconception .wrong .tag{color:var(--warn)}.misconception .right .tag{color:var(--ok)}.misconception .wrong span:last-child{color:#ffc4ca;text-decoration:line-through;text-decoration-color:#ff5d6c80}.disclose{width:100%;display:flex;align-items:center;justify-content:space-between;gap:8px;height:34px;padding:0 12px;border:1px solid var(--border);border-radius:var(--radius-sm);color:var(--dim);font-size:12.5px;transition:color .15s ease,border-color .15s ease}.disclose:hover{color:var(--text);border-color:var(--border-strong)}.disclose i{transition:transform .2s ease}.disclose.is-open i{transform:rotate(90deg)}.deep-read{margin-top:10px;display:grid;gap:12px;animation:fade-in .25s ease}.deep-read section h4{margin:0 0 3px;font-size:12.6px;color:var(--accent);font-weight:600}.deep-read section p{margin:0;font-size:12.4px;color:#b8cbe0}@keyframes fade-in{0%{opacity:0;transform:translateY(-4px)}}.molecule-card{margin-top:12px;padding:14px 16px;border-radius:var(--radius-sm);border:1px solid var(--card-color, var(--border));background:linear-gradient(180deg,#ffffff0d,#ffffff03);animation:fade-in .25s ease}.molecule-card header{display:flex;align-items:flex-start;gap:10px;margin-bottom:8px}.molecule-card .swatch{flex:none;width:14px;height:14px;margin-top:4px;border-radius:4px;background:var(--card-color);box-shadow:0 0 12px var(--card-color)}.molecule-card h3{margin:0;font-size:15.5px;font-weight:650}.molecule-card .en{margin:0;color:var(--dimmer);font-size:11.5px;letter-spacing:.04em}.molecule-card .close{margin-left:auto;color:var(--dimmer);font-size:18px;line-height:1;padding:2px 4px}.molecule-card .close:hover{color:var(--text)}.molecule-card .origin{display:inline-block;margin-bottom:8px;padding:1px 8px;border-radius:5px;font-size:11px;border:1px solid var(--border);color:var(--dim)}.molecule-card .role{margin:0 0 10px;font-size:12.6px;color:#c8daee}.facts{display:grid;gap:5px;margin:0 0 10px;font-size:12px}.facts div{display:flex;justify-content:space-between;gap:10px;padding-bottom:4px;border-bottom:1px dashed rgba(122,180,255,.14)}.facts dt{color:var(--dimmer)}.facts dd{margin:0;font-family:var(--mono);font-size:11.5px;color:#dbe9f8;text-align:right}.legend{width:216px;padding:14px;max-height:100%;overflow-y:auto}.legend-list{display:grid;gap:4px}.legend-item{display:flex;align-items:center;gap:9px;width:100%;padding:4px 6px;border-radius:7px;font-size:12.2px;color:#c6d8ec;text-align:left;transition:background .15s ease}.legend-item:hover{background:#7ab4ff17}.legend-item.is-active{background:#7ab4ff24;color:#fff}.legend-item i{flex:none;width:11px;height:11px;border-radius:3px;background:var(--legend-color);box-shadow:0 0 9px var(--legend-color)}.legend-item small{margin-left:auto;color:var(--dimmer);font-size:10.5px;letter-spacing:.04em}.legend-group{margin:8px 0 3px;font-size:10.5px;letter-spacing:.14em;text-transform:uppercase;color:var(--dimmer)}.bottom-dock{padding:10px 16px 14px;background:linear-gradient(0deg,#03060df0,#03060d00);display:grid;gap:9px}.timeline{display:flex;gap:6px;overflow-x:auto;scrollbar-width:none;padding-bottom:2px}.timeline::-webkit-scrollbar{display:none}.tl-step{position:relative;flex:1 1 0;min-width:104px;padding:8px 10px 9px;border:1px solid var(--border);border-radius:10px;background:#09132199;text-align:left;overflow:hidden;transition:border-color .18s ease,background .18s ease,transform .18s ease}.tl-step:hover{border-color:var(--border-strong);transform:translateY(-1px)}.tl-step .idx{font-family:var(--mono);font-size:10px;color:var(--dimmer);letter-spacing:.1em}.tl-step .name{display:block;font-size:12.4px;color:#b9cce1;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.tl-step.is-done .name{color:var(--dim)}.tl-step.is-current{border-color:var(--accent);background:#4dd6ff1a}.tl-step.is-current .name{color:#fff;font-weight:600}.tl-step.is-current .idx{color:var(--accent)}.tl-fill{position:absolute;left:0;bottom:0;height:2px;width:0;background:linear-gradient(90deg,var(--accent),#9ef0ff);box-shadow:0 0 10px var(--accent)}.playbar{display:flex;align-items:center;gap:12px;padding:8px 12px}.pb-group{display:flex;align-items:center;gap:4px}.pb-btn{display:grid;place-items:center;width:34px;height:34px;border-radius:9px;color:var(--dim);transition:color .15s ease,background .15s ease}.pb-btn:hover{color:var(--text);background:#7ab4ff1f}.pb-btn.primary{width:42px;height:42px;color:var(--bg);background:var(--accent);box-shadow:0 6px 20px #4dd6ff52}.pb-btn.primary:hover{background:#7ae2ff}.pb-btn.is-on{color:var(--accent);background:var(--accent-soft)}.scrub{flex:1;min-width:60px;height:26px;display:flex;align-items:center;cursor:pointer;position:relative}.scrub-track{position:relative;width:100%;height:4px;border-radius:4px;background:#7ab4ff29;overflow:hidden}.scrub-fill{position:absolute;inset:0 auto 0 0;width:0;border-radius:4px;background:linear-gradient(90deg,#2aa9d6,var(--accent))}.scrub-marks{position:absolute;inset:0;display:flex;pointer-events:none}.scrub-marks i{flex:1;border-right:1px solid rgba(3,6,13,.85)}.scrub-marks i:last-child{border-right:0}.time-code{font-family:var(--mono);font-size:11.5px;color:var(--dim);min-width:88px;text-align:right}.speed-btn{min-width:46px;height:30px;padding:0 8px;border:1px solid var(--border);border-radius:8px;font-family:var(--mono);font-size:12px;color:var(--dim)}.speed-btn:hover{color:var(--text);border-color:var(--border-strong)}.anno-wrapper{pointer-events:none}.anno{position:relative;width:0;height:0;pointer-events:none;--anno-color: var(--accent);--anno-lead: 34px}.anno-dot{position:absolute;left:-4px;top:-4px;width:8px;height:8px;border-radius:50%;background:var(--anno-color);box-shadow:0 0 10px var(--anno-color),0 0 0 1px #ffffff73 inset}.anno-dot:after{content:"";position:absolute;inset:-5px;border-radius:50%;border:1px solid var(--anno-color);opacity:.4;animation:anno-ping 2.6s ease-out infinite}@keyframes anno-ping{0%{transform:scale(.7);opacity:.5}70%{transform:scale(1.5);opacity:0}to{opacity:0}}.anno-line{position:absolute;left:3px;top:0;width:calc(var(--anno-lead) * 1.16);height:1px;background:linear-gradient(90deg,var(--anno-color),rgba(233,242,255,.35));transform:rotate(-28deg);transform-origin:left center}.anno-left .anno-line{left:-3px;transform:rotate(-152deg);transform-origin:left center;background:linear-gradient(90deg,var(--anno-color),rgba(233,242,255,.35))}.anno-pill{position:absolute;bottom:calc(var(--anno-lead) * .5 + 3px);left:calc(var(--anno-lead) * 1.02);pointer-events:auto;white-space:nowrap;padding:3px 9px;border-radius:7px;border:1px solid color-mix(in srgb,var(--anno-color) 46%,transparent);background:#060d18d1;backdrop-filter:blur(6px);color:#e9f2ff;font-size:11.5px;line-height:1.5;transition:background .15s ease,transform .15s ease}.anno-left .anno-pill{left:auto;right:calc(var(--anno-lead) * 1.02)}.anno-pill:hover{background:#0f2036f2;transform:translateY(-1px)}.anno.is-selected .anno-pill{border-color:var(--anno-color);box-shadow:0 0 0 1px var(--anno-color),0 8px 22px #00000080}.anno-warn .anno-pill{border-color:#ff5d6cb3;background:#28080ee0;color:#ffd9dd;font-weight:600}.anno-warn .anno-dot{background:var(--warn);box-shadow:0 0 12px var(--warn)}.modal-mask{position:absolute;inset:0;z-index:50;display:grid;place-items:center;padding:5vh 16px;background:#02050bb8;backdrop-filter:blur(6px);animation:fade-in .2s ease}.modal{width:min(880px,100%);max-height:90vh;display:flex;flex-direction:column;overflow:hidden}.modal header{display:flex;align-items:center;gap:12px;padding:14px 18px;border-bottom:1px solid var(--border)}.modal header h2{margin:0;font-size:16px;font-weight:650}.modal header .close{margin-left:auto;width:30px;height:30px;display:grid;place-items:center;border-radius:8px;color:var(--dim);font-size:18px}.modal header .close:hover{color:var(--text);background:#7ab4ff1f}.modal-body{padding:16px 18px 20px;overflow-y:auto}.glossary-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(248px,1fr));gap:12px}.glossary-item{padding:11px 13px;border:1px solid var(--border);border-radius:var(--radius-sm);background:#ffffff05}.glossary-item h4{margin:0;font-size:13px;font-weight:650}.glossary-item .en{display:block;color:var(--dimmer);font-size:11px;letter-spacing:.03em;margin-bottom:5px}.glossary-item p{margin:0;font-size:12.2px;color:#bdd0e6}.glossary-item .related{display:flex;flex-wrap:wrap;gap:5px;margin-top:7px}.mini-chip{padding:0 7px;height:21px;display:inline-flex;align-items:center;gap:5px;border-radius:999px;border:1px solid var(--border);font-size:11px;color:var(--dim)}.mini-chip i{width:6px;height:6px;border-radius:50%;background:var(--chip-color)}.refs{margin:18px 0 0;padding:0;list-style:none;display:grid;gap:7px;counter-reset:ref}.refs li{position:relative;padding-left:26px;font-size:11.8px;color:#a9bfd7}.refs li:before{counter-increment:ref;content:"[" counter(ref) "]";position:absolute;left:0;font-family:var(--mono);color:var(--dimmer)}.help-sections{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:16px}.help-sections section h4{margin:0 0 6px;font-size:12.5px;color:var(--accent)}.kbd-list{display:grid;gap:6px;margin:0;padding:0;list-style:none;font-size:12.2px;color:#c1d4e9}.kbd-list li{display:flex;align-items:center;gap:8px}kbd{min-width:22px;padding:1px 6px;border:1px solid var(--border-strong);border-bottom-width:2px;border-radius:5px;background:#7ab4ff14;font-family:var(--mono);font-size:11px;text-align:center}.note{margin:14px 0 0;padding:10px 12px;border-left:2px solid var(--accent);background:#4dd6ff0f;font-size:12.2px;color:#bdd4e9}.panel-toggle{display:none}@media(max-width:980px){.info-panel{width:320px;max-width:46vw}.legend{width:186px}}@media(max-width:760px){body{font-size:13.5px}.ui-layer{grid-template-rows:auto 1fr auto}.brand .brand-en{display:none}.topbar{padding:9px 10px;gap:8px}.tool-btn span.label{display:none}.tool-btn{padding:0 9px}.ui-middle{padding:0 10px;align-items:flex-end}.info-panel{position:absolute;left:10px;right:10px;bottom:10px;width:auto;max-width:none;max-height:46vh;z-index:20}.info-panel.is-collapsed{max-height:46px}.info-panel.is-collapsed .info-scroll{display:none}.panel-toggle{display:flex;align-items:center;justify-content:space-between;width:100%;height:45px;padding:0 14px;font-size:13px;color:var(--text);border-bottom:1px solid var(--border)}.panel-toggle i{color:var(--dim);transition:transform .2s ease}.info-panel.is-collapsed .panel-toggle{border-bottom:0}.info-panel.is-collapsed .panel-toggle i{transform:rotate(180deg)}.legend{position:absolute;right:10px;top:8px;width:168px;max-height:40vh;z-index:15}.bottom-dock{padding:8px 10px 10px}.timeline .tl-step{min-width:92px}.time-code{display:none}.playbar{gap:8px;padding:6px 8px}}@media(max-width:460px){.brand h1{font-size:13.5px}.pb-btn{width:30px;height:30px}.pb-btn.primary{width:38px;height:38px}}@media(prefers-reduced-motion:reduce){.anno-dot:after,.boot-virion,.boot-bar i{animation:none}}
