:root{color:#22231f;font-synthesis:none;text-rendering:optimizelegibility;--ink:#22231f;--muted:#6e6b63;--paper:#fbf8f1;--paper-deep:#ece5d8;--line:#d6cfc2;--accent:#bb4b2f;--accent-dark:#843520;--green:#315e53;--yellow:#d6a942;--shadow:0 18px 50px #3930241c;background:#f3efe6;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif}*{box-sizing:border-box}html{scroll-behavior:smooth;background:#f3efe6;min-width:320px}body{background-color:#f3efe6;background-image:linear-gradient(#4a413107 1px,#0000 1px);background-size:100% 28px;min-width:320px;min-height:100vh;margin:0}button,input,textarea,select{font:inherit}button,a{-webkit-tap-highlight-color:transparent;touch-action:manipulation}button{cursor:pointer}button:disabled{cursor:not-allowed;opacity:.56}a{color:inherit}img{max-width:100%;display:block}h1,h2,p{margin-top:0}h1,h2{letter-spacing:-.025em;text-wrap:balance;font-family:Georgia,Times New Roman,ui-serif,serif}h1{font-size:clamp(2.15rem,6vw,4.6rem);line-height:.98}h2{line-height:1.1}:focus-visible{outline-offset:3px;outline:3px solid #bb4b2f6b}.sr-only{clip:rect(0, 0, 0, 0);white-space:nowrap;border:0;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}.eyebrow{color:var(--accent-dark);letter-spacing:.16em;text-transform:uppercase;margin-bottom:.65rem;font-size:.72rem;font-weight:800}.muted{color:var(--muted)}.skip-link{z-index:100;background:var(--ink);color:#fff;border-radius:999px;padding:.7rem 1rem;font-weight:800;text-decoration:none;transition:transform .12s;position:fixed;top:.75rem;left:.75rem;transform:translateY(-180%)}.skip-link:focus-visible{transform:translateY(0)}.wordmark{color:var(--ink);letter-spacing:-.02em;align-items:center;gap:.7rem;font-weight:800;text-decoration:none;display:inline-flex}.brand-logo{object-fit:contain;flex:none;display:block}.wordmark__sigil{width:2.5rem;height:2.5rem}.button{border:1px solid #0000;border-radius:999px;justify-content:center;align-items:center;min-height:44px;padding:.72rem 1rem;font-weight:800;text-decoration:none;transition:transform .15s,background .15s,color .15s;display:inline-flex}.button:hover:not(:disabled){transform:translateY(-1px)}.button--primary{background:var(--accent);color:#fff;box-shadow:0 8px 20px #bb4b2f30}.button--primary:hover:not(:disabled){background:var(--accent-dark)}.button--quiet{border-color:var(--ink);color:var(--ink);background:0 0}.button--quiet:hover:not(:disabled){background:var(--ink);color:#fff}.button--ghost{border-color:var(--line);color:var(--muted);background:#ffffff5c}.button--wide{width:100%}.text-button{min-height:44px;color:var(--accent-dark);text-underline-offset:.25rem;background:0 0;border:0;font-weight:800;text-decoration:underline}.icon-button{border:1px solid var(--line);background:0 0;border-radius:50%;width:44px;height:44px;font-size:1.5rem}.login-page{isolation:isolate;background:#f3efe6;align-items:center;min-height:100vh;padding:3rem 1.25rem;display:grid;position:relative;overflow:hidden}.login-page:before,.login-page:after{content:"";pointer-events:none;mix-blend-mode:multiply;will-change:transform;background-image:url(/assets/login-halftone-wave-DcV3SSYg.webp);background-position:50%;background-repeat:repeat;position:absolute}.login-page:before{z-index:0;opacity:.22;background-size:min(96rem,128vw);animation:72s ease-in-out infinite alternate login-halftone-drift;inset:-12%}.login-page:after{z-index:0;opacity:.09;background-size:min(78rem,108vw);animation:96s ease-in-out infinite alternate login-halftone-counter-drift;inset:-18%}.paper-glow{z-index:1;aspect-ratio:1;opacity:.72;border:1px solid #bb4b2f2e;border-radius:58% 42% 47% 53%;width:min(62vw,40rem);position:absolute;inset:7% -10% auto auto;transform:rotate(11deg)}.paper-glow:before,.paper-glow:after{content:"";border:1px solid #315e532e;border-radius:48% 52% 61% 39%;position:absolute}.paper-glow:before{inset:12%;transform:rotate(17deg)}.paper-glow:after{inset:27%;transform:rotate(-9deg)}.login-card{z-index:2;width:min(100%,42rem);box-shadow:var(--shadow);background:#fbf8f1f5;border:1px solid #4c433629;border-radius:1.75rem 1.75rem 1.75rem .5rem;margin-inline:auto;padding:clamp(1.4rem,5vw,3.25rem);transition:opacity .42s,transform .42s cubic-bezier(.22,.72,.24,1),filter .42s;position:relative}.login-page--leaving .login-card{opacity:0;filter:blur(2px);pointer-events:none;transform:translateY(-.75rem)scale(.985)}.login-card:before{content:"";z-index:-1;border-radius:inherit;pointer-events:none;position:absolute;inset:.35rem;box-shadow:0 0 0 1.15rem #f3efe6c2,0 0 2.8rem 2.9rem #f3efe694,0 0 6.8rem 5.4rem #f3efe642}.login-card .wordmark{margin-bottom:clamp(2.5rem,7vw,4rem)}.login-card h1{max-width:8ch;margin-bottom:1.15rem;font-size:clamp(2.55rem,9vw,4.35rem)}@keyframes login-halftone-drift{0%{transform:translate(-1.8%,-1.2%)scale(1.02)rotate(-.8deg)}to{transform:translate(2.2%,1.6%)scale(1.055)rotate(.9deg)}}@keyframes login-halftone-counter-drift{0%{transform:translate(1.4%,-1.8%)scaleX(-1)rotate(1deg)}to{transform:translate(-1.6%,1.4%)scaleX(-1)rotate(-.7deg)}}.login-method-panel{margin-top:2rem}.login-method-heading{justify-content:space-between;align-items:baseline;gap:1rem;margin-bottom:.8rem;display:flex}.login-method-heading>span{letter-spacing:.12em;text-transform:uppercase;font-size:.76rem;font-weight:900}.login-method-heading small{color:var(--muted);font-size:.72rem}.login-methods{border:1px solid var(--line);background:#ffffff3d;border-radius:1rem 1rem 1rem .3rem;overflow:hidden}.login-method{border:0;border-bottom:1px solid var(--line);width:100%;min-height:5.2rem;color:var(--ink);text-align:left;background:0 0;grid-template-columns:2.8rem minmax(0,1fr) auto;align-items:center;gap:1rem;padding:1rem 1.1rem;transition:background .15s,padding-left .15s;display:grid}.login-method:last-child{border-bottom:0}.login-method:hover:not(:disabled){background:#315e530f;padding-left:1.25rem}.login-method:disabled{cursor:not-allowed;color:#77736a;background:#6e6b6309}.login-method__icon{width:2.8rem;height:2.8rem;color:var(--green);letter-spacing:-.03em;background:#315e5314;border:1px solid #315e5347;border-radius:.85rem .85rem .85rem .25rem;place-items:center;font-size:.76rem;font-weight:900;display:grid}.login-method__icon svg{fill:currentColor;width:1.65rem;height:1.65rem}.login-method__icon--wechat{color:#07c160;background:#07c16017;border-color:#07c16059}.login-method__icon--telegram{color:#229ed9;background:#229ed917;border-color:#229ed959}.login-method__copy{gap:.18rem;min-width:0;display:grid}.login-method__copy strong{font-size:1rem}.login-method__status{max-width:7.5rem;color:var(--muted);text-align:right;justify-content:flex-end;align-items:center;gap:.42rem;font-size:.68rem;font-weight:800;line-height:1.35;display:inline-flex}.login-method__status:before{content:"";background:currentColor;border-radius:50%;flex:none;width:.4rem;height:.4rem}.login-method__status--ready{color:var(--green)}.login-method__status--error{color:var(--accent-dark)}.login-capability-error{margin-top:.9rem}.login-capability-error .inline-error{margin-top:0}.login-retry-button,.login-back-button{min-height:44px;color:var(--accent-dark);text-underline-offset:.23rem;background:0 0;border:0;padding:0;font-size:.76rem;font-weight:850;text-decoration:underline}.login-capability-error .login-retry-button{margin-top:.2rem}.login-capability-note{color:var(--muted);margin:.8rem 0 0;font-size:.74rem;line-height:1.55}.login-flow{margin-top:2rem}.login-flow .challenge-card{margin-top:0}.login-flow>.login-back-button{margin-top:.65rem}.email-login-flow{margin-top:2rem}.email-login-form{gap:.85rem;display:grid}.email-login-form .field{margin-bottom:.15rem}.email-login-form .field input{min-height:3rem;font-size:1rem}.email-login-form .button{margin-top:.25rem}.email-login-confirmation{color:var(--muted);margin:0 0 .25rem;font-size:.82rem;line-height:1.55}.login-success-note{border-left:3px solid var(--green);color:var(--green);background:#315e5317;margin:1rem 0 0;padding:.8rem 1rem;font-size:.88rem;line-height:1.55}.email-login-form .login-back-button{justify-self:start}.privacy-note{color:var(--muted);border-top:1px solid #5b503f1a;margin:1.5rem 0 0;padding-top:1rem;font-size:.75rem;line-height:1.55}.challenge-card{border:1px solid var(--line);background:#f3eee4;border-radius:1rem;grid-template-columns:auto 1fr;gap:1rem;margin-top:2rem;padding:1.15rem;display:grid}.challenge-card code{background:var(--ink);color:#fff;overflow-wrap:anywhere;border-radius:.6rem;padding:.85rem;font-size:clamp(.95rem,4vw,1.1rem);display:block}.challenge-card p:last-child{margin:.75rem 0 0;font-size:.82rem;line-height:1.5}.step-number{background:var(--yellow);border-radius:50%;place-items:center;width:2rem;height:2rem;font-size:.72rem;font-weight:900;display:grid}.inline-error{border-left:3px solid var(--accent);color:var(--accent-dark);background:#bb4b2f14;margin:1rem 0 0;padding:.8rem 1rem;font-size:.9rem}.topbar{z-index:20;-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);background:#f3efe6e6;border-bottom:1px solid #50483b21;position:sticky;top:0}.topbar__inner{justify-content:space-between;align-items:center;width:min(100% - 2rem,1080px);height:68px;margin-inline:auto;display:flex}.account-menu{position:relative}.account-menu summary{border:1px solid var(--line);background:var(--paper);cursor:pointer;border-radius:50%;place-items:center;width:44px;height:44px;font-size:.68rem;font-weight:900;list-style:none;display:grid}.account-menu summary::-webkit-details-marker{display:none}.account-menu summary svg{fill:none;stroke:currentColor;stroke-width:1.8px;stroke-linecap:round;width:1.35rem;height:1.35rem}.account-popover{border:1px solid var(--line);background:var(--paper);width:13rem;box-shadow:var(--shadow);border-radius:1rem;padding:1rem;position:absolute;top:calc(100% + .7rem);right:0}.account-popover strong{margin-bottom:1rem;display:block}.account-popover__link{border:1px solid var(--line);min-height:44px;color:var(--accent-dark);border-radius:.7rem;justify-content:center;align-items:center;margin-bottom:.55rem;font-size:.78rem;font-weight:800;text-decoration:none;display:flex}.account-popover__link:hover,.account-popover__link:focus-visible{background:#bb4b2f0f;border-color:#bb4b2f7a}.account-popover button{background:var(--ink);color:#fff;border:0;border-radius:.7rem;width:100%;min-height:44px;font-weight:800}.account-popover__error{color:var(--accent-dark);margin:.75rem 0 0;font-size:.72rem;line-height:1.45}.page-container{width:min(100% - 2rem,1080px);min-height:calc(100vh - 68px);margin-inline:auto;padding:2.25rem 0 5rem}.account-link-page{max-width:960px;margin-inline:auto}.account-link-page__heading{max-width:46rem;margin-bottom:2rem}.account-link-page__heading h1{max-width:12ch;margin-bottom:.9rem}.account-link-page__heading>p:last-child{max-width:42rem;color:var(--muted);line-height:1.7}.account-link-grid{gap:1rem;display:grid}.account-link-card{border:1px solid var(--line);background:#fbf8f1d1;border-radius:1.2rem 1.2rem 1.2rem .35rem;min-width:0;padding:clamp(1.2rem,4vw,2rem);box-shadow:0 12px 32px #3930240e}.account-link-card .step-number{margin:0 0 1rem}.account-link-card h2{margin-bottom:.65rem;font-size:clamp(1.35rem,4vw,1.85rem)}.account-link-card>p:not(.step-number){color:var(--muted);line-height:1.65}.account-link-card>.button{margin-top:.55rem}.account-link-command{background:#315e530e;border:1px solid #315e5333;border-radius:.9rem;gap:.65rem;margin-top:1.1rem;padding:1rem;display:grid}.account-link-command p{color:var(--muted);margin:0;font-size:.78rem;line-height:1.55}.account-link-command code{overflow-wrap:anywhere;background:var(--ink);color:#fff;border-radius:.6rem;min-width:0;padding:.85rem;font-size:clamp(.95rem,4vw,1.1rem);display:block}.account-link-command .field-help{margin:0}.account-link-form{margin-top:1rem}.account-link-form .field{margin-bottom:.8rem}.account-link-form .field input{min-height:3rem;font-size:1rem}.account-link-form .inline-error{margin-top:.8rem}.account-link-status{color:var(--green);margin:0;font-size:.78rem;font-weight:700;line-height:1.55}.account-link-warning{max-width:54rem;color:var(--muted);border-top:1px solid #5b503f1f;margin:1.5rem 0 0;padding-top:1rem;font-size:.76rem;line-height:1.6}.page-container,.login-page,.showcase-page{view-transition-name:app-route}::view-transition-old(app-route){animation:.22s ease-in both route-page-out}::view-transition-new(app-route){animation:.38s cubic-bezier(.22,.72,.24,1) both route-page-in}.route-transition--entering :is(.page-container,.login-page,.showcase-page){animation:.38s cubic-bezier(.22,.72,.24,1) both route-page-in}@keyframes route-page-out{to{opacity:0;transform:translateY(-.25rem)scale(.995)}}@keyframes route-page-in{0%{opacity:0;transform:translateY(.55rem)scale(.995)}}.route-loading{place-items:center;min-height:100vh;display:grid}.route-loading .wordmark__sigil{animation:1.2s ease-in-out infinite alternate breathe}@keyframes breathe{to{transform:scale(1.08)}}.library-heading{align-items:end;gap:1.5rem;margin-bottom:2rem;display:grid}.library-heading h1{max-width:12ch;margin-bottom:.9rem}.library-heading p:last-child{max-width:40rem;color:var(--muted);line-height:1.7}.library-heading>.button{justify-self:start}.library-toolbar{grid-template-columns:1fr 1fr;gap:.65rem;margin-bottom:1.4rem;display:grid}.search-box{border:1px solid var(--line);background:#fbf8f1cc;border-radius:999px;grid-column:1/-1;min-height:48px;display:flex;position:relative}.search-box input{background:0 0;border:0;outline:none;flex:1;min-width:0;padding:0 0 0 1rem}.search-box:focus-within{outline-offset:3px;outline:3px solid #bb4b2f6b}.search-box button{background:var(--ink);color:#fff;border:0;border-radius:999px;min-width:64px;padding:0 1rem;font-size:.82rem;font-weight:800}.search-suggestions{z-index:16;border:1px solid var(--line);background:var(--paper);box-shadow:var(--shadow);border-radius:1rem;gap:.18rem;margin:0;padding:.42rem;list-style:none;display:grid;position:absolute;top:calc(100% + .55rem);left:0;right:0}.search-suggestions li{min-width:0}.search-suggestions li button{width:100%;min-width:0;min-height:42px;color:var(--ink);text-align:left;background:0 0;border-radius:.65rem;grid-template-columns:4.25rem minmax(0,1fr);align-items:center;gap:.7rem;padding:.58rem .7rem;display:grid}.search-suggestions li button:hover,.search-suggestions li button:focus-visible{background:#315e5314}.search-suggestions span{color:var(--accent-dark);letter-spacing:.08em;font-size:.68rem;font-weight:900}.search-suggestions strong{text-overflow:ellipsis;white-space:nowrap;min-width:0;font-size:.82rem;overflow:hidden}.collection-filter{align-items:flex-start;gap:.8rem;min-width:0;margin:-.35rem 0 1.5rem;display:flex}.collection-filter__label{color:var(--muted);flex:none;padding-top:.48rem;font-size:.75rem;font-weight:800}.collection-options{flex-wrap:wrap;gap:.5rem;min-width:0;display:flex}.collection-chip{border:1px solid var(--line);color:#5b554b;background:#fbf8f1b8;border-radius:999px;min-height:36px;padding:.42rem .78rem;font-size:.76rem;font-weight:800}.collection-chip:hover{border-color:#bb4b2f7a}.collection-chip[aria-pressed=true]{border-color:var(--accent-dark);background:var(--accent-dark);color:#fff}.select-field{min-width:0;color:var(--muted);position:relative}.select-field:before{content:"";z-index:1;pointer-events:none;background:#bb4b2f6b;width:.18rem;position:absolute;top:.65rem;bottom:.65rem;left:0}.select-field:after{content:"";pointer-events:none;border-bottom:1.5px solid;border-right:1.5px solid;width:.48rem;height:.48rem;transition:border-color .15s,transform .15s;position:absolute;top:50%;right:1rem;transform:translateY(-72%)rotate(45deg)}.select-field select{appearance:none;background:linear-gradient(180deg, #ffffff8a, #ece5d847), var(--paper);width:100%;min-height:48px;color:var(--ink);cursor:pointer;border:1px solid #50483b3d;border-radius:.9rem .9rem .9rem .28rem;padding:0 2.7rem 0 1rem;font-size:.78rem;font-weight:750;transition:border-color .15s,background .15s,box-shadow .15s,transform .15s;box-shadow:inset 0 1px #ffffffb8,0 .25rem .8rem #3930240b}.select-field:hover{color:var(--accent-dark)}.select-field select:hover:not(:disabled){background:linear-gradient(180deg, #ffffffb8, #ece5d833), var(--paper);border-color:#bb4b2f7a}.select-field select:focus-visible{border-color:var(--accent);outline-offset:2px;outline:3px solid #bb4b2f24;box-shadow:inset 0 1px #fffc,0 .45rem 1.2rem #603e2b1a}.select-field:focus-within:after{border-color:var(--accent-dark);transform:translateY(-52%)rotate(45deg)}.select-field select:disabled{cursor:not-allowed;opacity:.56}.select-field option{background:var(--paper);color:var(--ink)}.library-summary{color:var(--muted);justify-content:space-between;gap:1rem;margin:1rem 0;font-size:.82rem;font-weight:700;display:flex}.live-note{align-items:center;gap:.45rem;display:inline-flex}.live-note i{background:var(--green);border-radius:50%;width:.5rem;height:.5rem;box-shadow:0 0 0 .24rem #315e5321}.library-ready-zone{min-width:0}.library-work-zone{border-top:1px solid #5b503f2e;min-width:0;margin-top:clamp(2.8rem,7vw,4.8rem);padding-top:1.6rem}.library-work-zone__header{justify-content:space-between;align-items:end;gap:1rem;margin-bottom:1rem;display:flex}.library-work-zone__header .eyebrow{margin-bottom:.35rem}.library-work-zone__header h2{margin:0;font-size:clamp(1.45rem,4vw,2rem)}.library-work-zone__header>span{color:var(--muted);flex:none;font-size:.78rem;font-weight:700}.work-progress{width:min(100%,28rem);margin-top:1rem;margin-left:auto}.work-progress__label{color:var(--muted);justify-content:space-between;align-items:baseline;gap:1rem;font-size:.75rem;font-weight:700;display:flex}.work-progress__label strong{color:var(--green);font-variant-numeric:tabular-nums;font-size:.82rem}.work-progress progress{appearance:none;background:var(--paper-deep);border:0;border-radius:999px;width:100%;height:.38rem;margin:.42rem 0 .35rem;display:block;overflow:hidden}.work-progress progress::-webkit-progress-bar{background:var(--paper-deep)}.work-progress progress::-webkit-progress-value{background:linear-gradient(90deg, var(--green), #4a796c);border-radius:999px;transition:width .9s cubic-bezier(.2,.75,.2,1)}.work-progress progress::-moz-progress-bar{background:linear-gradient(90deg, var(--green), #4a796c);border-radius:999px;transition:width .9s cubic-bezier(.2,.75,.2,1)}.work-progress small{color:var(--muted);text-align:right;font-size:.68rem;display:block}.video-grid{gap:1rem;display:grid}.video-card{background:#fbf8f1cc;border:1px solid #51483a24;border-radius:1.2rem 1.2rem 1.2rem .35rem;transition:border-color .16s,transform .16s,box-shadow .16s;overflow:hidden}.video-card:hover{border-color:#bb4b2f70;transform:translateY(-2px);box-shadow:0 16px 34px #3d33261a}.video-card__link{color:inherit;text-decoration:none;display:grid}.video-card__cover{aspect-ratio:16/9;background:var(--paper-deep);position:relative;overflow:hidden}.video-card__cover img{object-fit:cover;width:100%;height:100%}.cover-placeholder{width:100%;height:100%;color:var(--green);letter-spacing:.08em;background-color:#ded6c6;background-image:repeating-linear-gradient(135deg,#0000 0 16px,#315e5314 16px 17px);place-items:center;font-size:.8rem;font-weight:800;display:grid}.duration-badge{color:#fff;background:#181815e0;border-radius:.35rem;padding:.22rem .45rem;font-size:.7rem;font-weight:800;position:absolute;bottom:.55rem;right:.55rem}.video-card__body{padding:1rem}.video-card__body,.detail-heading,.detail-section,.transcript-list li{min-width:0}.video-card__topline{justify-content:space-between;align-items:center;gap:.75rem;margin-bottom:.75rem;display:flex}.video-card__topline time{color:var(--muted);font-size:.75rem}.video-card h2{margin-bottom:.45rem;font-size:1.3rem}.video-card__author{color:var(--muted);margin-bottom:.8rem;font-size:.82rem}.collection-tag-list{flex-wrap:wrap;gap:.38rem;margin:.75rem 0 0;padding:0;list-style:none;display:flex}.collection-tag{overflow-wrap:anywhere;max-width:100%;color:var(--green);background:#315e5314;border:1px solid #315e5340;border-radius:999px;padding:.26rem .56rem;font-size:.7rem;font-weight:800;line-height:1.35}.video-card blockquote{border-left:2px solid var(--yellow);color:#5e554a;margin:.85rem 0 0;padding-left:.75rem;font-size:.85rem;line-height:1.5}.video-card h2,.video-card__author,.video-card blockquote,.card-hint,.reason-section p,.description-copy,.transcript-list p,.submission-results li{overflow-wrap:anywhere}.card-hint{color:var(--accent-dark);margin:.75rem 0 0;font-size:.78rem;font-weight:700}.status-pill{color:#504b43;background:#e4ded2;border-radius:999px;align-items:center;min-height:25px;padding:.25rem .58rem;font-size:.68rem;font-weight:900;display:inline-flex}.status-pill--ready{color:#214c42;background:#d7e4df}.status-pill--processing,.status-pill--queued{color:#775d1a;background:#eee3c4}.status-pill--failed{color:#863721;background:#f0d8d0}.status-pill--needs_action{color:#765931;background:#e8dfcf}.status-pill--archived{color:#585853;background:#dddcd8}.pagination{color:var(--muted);justify-content:center;align-items:center;gap:1rem;margin-top:2rem;font-size:.85rem;display:flex}.state-card{border:1px solid var(--line);background:var(--paper);max-width:44rem;box-shadow:var(--shadow);border-radius:1.5rem 1.5rem 1.5rem .4rem;margin:2.5rem auto;padding:clamp(1.4rem,5vw,3rem)}.state-card--compact{text-align:center}.state-card p{color:var(--muted);line-height:1.7}.welcome-card .agent-mark{width:4rem;height:4rem;margin-bottom:2rem}.skeleton-list{gap:1rem;display:grid}.video-skeleton{background:linear-gradient(100deg,#e8e2d7 25%,#f5f1e9 42%,#e8e2d7 60%) 0 0/300% 100%;border-radius:1.2rem;min-height:18rem;animation:1.4s infinite shimmer}@keyframes shimmer{to{background-position:-150% 0}}@keyframes url-tag-enter{0%{opacity:0;transform:translateY(3px)}}.add-dialog{background:var(--paper);width:100%;max-width:none;max-height:92dvh;color:var(--ink);overscroll-behavior:contain;border:0;border-radius:1.5rem 1.5rem 0 0;margin:auto 0 0;padding:0;box-shadow:0 -20px 60px #231f1933}.add-dialog::backdrop{-webkit-backdrop-filter:blur(3px);backdrop-filter:blur(3px);background:#1f1d1975}.add-form{max-height:92dvh;padding:1.25rem 1.25rem max(1.25rem, env(safe-area-inset-bottom));overflow-y:auto}.dialog-header{justify-content:space-between;align-items:start;gap:1rem;margin-bottom:1.2rem;display:flex}.dialog-header h2{margin:0;font-size:1.7rem}.field{color:#4d483f;gap:.5rem;margin-bottom:1rem;font-size:.82rem;font-weight:800;display:grid}.field input,.field textarea{border:1px solid var(--line);width:100%;color:var(--ink);resize:vertical;background:#fffdf8;border-radius:.85rem;padding:.85rem;font-weight:500;line-height:1.5}.field-label-row{justify-content:space-between;align-items:baseline;gap:1rem;display:flex}.field-label-row small{color:var(--muted);font-weight:600}.url-field .field-help{margin:-.1rem 0 0}.url-count[data-over-limit=true]{color:var(--accent-dark)}.url-token-input{border:1px solid var(--line);background:#fffdf8;border-radius:.85rem;min-width:0;padding:.5rem;transition:border-color .15s,box-shadow .15s}.url-token-input:focus-within{border-color:#bb4b2f9e;box-shadow:0 0 0 3px #bb4b2f1a}.url-tag-list{flex-wrap:wrap;gap:.42rem;min-width:0;margin:0 0 .45rem;padding:0;list-style:none;display:flex}.url-tag{max-width:100%;color:var(--green);background:#315e5314;border:1px solid #315e533d;border-radius:999px;align-items:center;gap:.42rem;padding:.36rem .38rem .36rem .62rem;font-size:.72rem;font-weight:700;animation:.14s ease-out url-tag-enter;display:inline-flex}.url-tag span{text-overflow:ellipsis;white-space:nowrap;min-width:0;max-width:min(28rem,70vw);overflow:hidden}.url-tag button{width:1.5rem;height:1.5rem;color:inherit;background:#315e531f;border:0;border-radius:50%;flex:none;place-items:center;padding:0;font-size:1rem;line-height:1;display:grid}.url-tag button:hover{background:#315e5338}.field textarea.url-draft-input{resize:none;field-sizing:content;background:0 0;border:0;border-radius:0;outline:0;min-height:2.55rem;max-height:7rem;margin:0;padding:.58rem .42rem;overflow-y:auto}.why-saved-textarea{resize:vertical;min-height:5.8rem}.collection-picker{border:1px solid var(--line);border-radius:1rem;min-width:0;margin:0 0 1rem;padding:1rem}.collection-picker legend{color:#4d483f;padding:0 .35rem;font-size:.82rem;font-weight:800}.field-help{color:var(--muted);margin:0 0 .85rem;font-size:.76rem;font-weight:500;line-height:1.55}.collection-create{gap:.6rem;margin-top:.9rem;display:grid}.collection-create .field{margin:0}.collection-create .button{width:100%}.submission-results{gap:.5rem;margin:1rem 0;padding:0;list-style:none;display:grid}.submission-results li{background:#ece7dd;border-radius:.7rem;align-items:center;gap:.75rem;padding:.7rem;font-size:.84rem;display:flex}.submission-results li>span{color:var(--muted);flex:none;font-size:.72rem;font-weight:800}.submission-results li[data-status=queued]{color:#285347;background:#dce8e3}.back-link{min-height:44px;color:var(--muted);align-items:center;margin-bottom:1.2rem;font-size:.86rem;font-weight:800;text-decoration:none;display:inline-flex}.detail-layout{max-width:920px;margin-inline:auto}.detail-hero{border-bottom:1px solid var(--line);gap:1.5rem;padding-bottom:2rem;display:grid}.detail-cover{aspect-ratio:16/9;background:var(--paper-deep);border-radius:1.2rem 1.2rem 1.2rem .35rem;overflow:hidden}.detail-cover img{object-fit:cover;width:100%;height:100%}.cover-placeholder--large{font-size:.92rem}.detail-title{overflow-wrap:anywhere;text-wrap:balance;margin:.75rem 0 .9rem;font-size:clamp(2.2rem,6vw,4rem)}.detail-title[data-title-density=compact]{font-size:clamp(2rem,4vw,3.25rem);line-height:.98}.detail-meta{color:var(--muted);flex-wrap:wrap;gap:.5rem 1rem;font-size:.82rem;display:flex}.detail-meta span+span:before{content:"·";margin-right:1rem}.detail-actions{flex-wrap:wrap;gap:.6rem;margin-top:1.4rem;display:flex}.detail-section{border-bottom:1px solid var(--line);padding:2rem 0}.detail-section h2{margin-bottom:1rem;font-size:1.8rem}.detail-section>p{max-width:70ch;line-height:1.75}.reason-section{margin-top:1rem}.collection-tag-list--detail{margin:0 0 1rem}.section-heading-row{justify-content:space-between;align-items:start;gap:1rem;display:flex}.chapter-list,.transcript-list{margin:0;padding:0;list-style:none}.chapter-list{overscroll-behavior:contain;scrollbar-gutter:stable;border-block:1px solid #5b503f1f;max-block-size:15rem;display:grid;overflow-y:auto}.chapter-list li+li{border-top:1px solid #5b503f1f}.chapter-list:focus-visible{outline:2px solid var(--green);outline-offset:.25rem}.chapter-list a{border-radius:.35rem;grid-template-columns:3.5rem 1fr;align-items:baseline;gap:.8rem;min-height:48px;padding:.72rem;text-decoration:none;display:grid}.chapter-list a:hover{background:#315e5312}.chapter-list time{color:var(--green);font-size:.78rem;font-weight:900}.description-copy{white-space:pre-line;color:#514c44}.block-count{color:var(--muted);font-size:.75rem}.transcript-heading-copy h2{margin-bottom:.35rem}.transcript-guide{color:var(--muted);margin:0;font-size:.75rem}.transcript-reader{overscroll-behavior:contain;scrollbar-gutter:stable;scrollbar-color:#315e5361 transparent;height:22rem;padding-right:.55rem;overflow-y:auto}.transcript-reader:focus-visible{outline-offset:5px;outline:1px solid #315e5373}.transcript-list li{border-top:1px solid #5b503f1a;grid-template-columns:4.2rem minmax(0,1fr);align-items:start;gap:.9rem;padding:1rem 0;display:grid}.transcript-list li:first-child{border-top:0}.transcript-list a{width:fit-content;min-width:44px;min-height:44px;color:var(--green);align-items:center;font-size:.75rem;font-weight:900;text-decoration:none;display:inline-flex}.transcript-list a:hover{text-underline-offset:.24em;text-decoration:underline}.transcript-list p{margin:0;line-height:1.75}.transcript-reader .button--wide{width:100%;margin:0 0 1rem}.transcript-error p{margin:0 0 .8rem}@media (width>=700px){.login-card{margin-left:max(5vw,50vw - 540px)}.library-heading{grid-template-columns:1fr auto;margin-top:1.5rem}.library-heading>.button{justify-self:end}.library-toolbar{grid-template-columns:minmax(18rem,1fr) 10rem 10rem}.search-box{grid-column:auto}.video-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.video-card__link{grid-template-columns:minmax(10rem,42%) 1fr;min-height:13.5rem}.video-card__cover{aspect-ratio:auto;height:100%}.video-card__body{padding:1.2rem}.add-dialog{border-radius:1.5rem;width:min(92vw,38rem);margin:auto}.add-form{padding:1.6rem}.collection-create{grid-template-columns:minmax(0,1fr) auto;align-items:end}.collection-create .button{width:auto}.detail-hero{grid-template-columns:minmax(19rem,50%) minmax(0,1fr);align-items:center}.account-link-grid{grid-template-columns:repeat(2,minmax(0,1fr));align-items:start}}@media (width>=1040px){.video-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:1.25rem}}@media (prefers-reduced-motion:reduce){.route-transition--entering :is(.page-container,.login-page,.showcase-page){animation:none!important}::view-transition-old(app-route){animation:none!important}::view-transition-new(app-route){animation:none!important}*,:before,:after{scroll-behavior:auto!important;transition-duration:.01ms!important;animation-duration:.01ms!important;animation-iteration-count:1!important}.login-card{transition-duration:80ms!important}.login-page--leaving .login-card{filter:none;transform:none}}.showcase-page{--showcase-ink:#151815;--showcase-paper:#efeee8;--showcase-paper-bright:#f8f7f1;--showcase-line:#15181533;--showcase-muted:#686b65;--showcase-signal:#d7ff4f;--showcase-signal-dark:#a7cf16;background:var(--showcase-paper);min-height:100vh;color:var(--showcase-ink);font-family:Bahnschrift,Aptos Narrow,Microsoft YaHei,sans-serif;overflow:clip}.showcase-page h1,.showcase-page h2,.showcase-page h3,.showcase-page p{margin:0}.showcase-page h1,.showcase-page h2,.showcase-page h3{letter-spacing:-.025em;text-wrap:balance;font-family:Bahnschrift,Aptos Display,Microsoft YaHei,sans-serif}.showcase-page h1 em,.showcase-page h2 em{color:inherit;font-family:Songti SC,SimSun,serif;font-weight:400}.showcase-page svg{fill:none;stroke:currentColor;stroke-linecap:square;stroke-width:1.6px;width:1.15em}.showcase-page :is(a,button){touch-action:manipulation;-webkit-tap-highlight-color:#d7ff4f38}.showcase-skip{z-index:100;background:var(--showcase-signal);color:var(--showcase-ink);padding:.7rem 1rem;font-weight:800;text-decoration:none;transition:transform .14s;position:fixed;top:.75rem;left:.75rem;transform:translateY(-180%)}.showcase-skip:focus-visible{transform:translateY(0)}.showcase-page :is(a,button):focus-visible{outline-offset:4px;outline:2px solid}.showcase-nav{z-index:10;color:#f7f7f1;border-bottom:1px solid #ffffff38;grid-template-columns:1fr auto 1fr;align-items:center;gap:2rem;width:min(100% - 2rem,1240px);min-height:82px;margin-inline:auto;display:grid;position:absolute;inset:0 0 auto}.showcase-brand{color:inherit;letter-spacing:.12em;justify-self:start;align-items:center;gap:.7rem;font-size:.74rem;font-weight:800;text-decoration:none;display:inline-flex}.showcase-brand__mark{width:2.5rem;height:2.5rem}.showcase-nav nav{align-items:center;gap:clamp(1.2rem,3vw,2.5rem);display:flex}.showcase-nav nav a{color:#ffffffb8;letter-spacing:.05em;font-size:.76rem;font-weight:700;text-decoration:none;transition:color .16s}.showcase-nav__cta{color:#fff;justify-self:end;align-items:center;gap:.55rem;min-height:44px;font-size:.78rem;font-weight:800;text-decoration:none;display:inline-flex}.showcase-hero{color:#f4f4ed;isolation:isolate;background:radial-gradient(circle at 71% 18%,#d7ff4f2b,#0000 19rem),linear-gradient(118deg,#111511 0%,#1a211b 58%,#111411 100%);grid-template-rows:1fr auto;grid-template-columns:minmax(0,1.18fr) minmax(22rem,.82fr);align-items:center;gap:clamp(2rem,6vw,7rem);min-height:min(900px,100svh);padding:clamp(8rem,15vh,11rem) max(1rem,50vw - 620px) 0;display:grid;position:relative;overflow:hidden}.showcase-hero:after{content:"";z-index:-1;aspect-ratio:1;border:1px solid #d7ff4f4d;border-radius:50%;width:34rem;position:absolute;bottom:-14rem;right:-9rem;box-shadow:0 0 0 6rem #d7ff4f06,0 0 0 12rem #d7ff4f05}.showcase-hero__grid{z-index:-2;opacity:.16;background-image:linear-gradient(#ffffff38 1px,#0000 1px),linear-gradient(90deg,#ffffff2e 1px,#0000 1px);background-size:100% 72px,72px 100%;position:absolute;inset:0;-webkit-mask-image:linear-gradient(90deg,#000,#0000 72%);mask-image:linear-gradient(90deg,#000,#0000 72%)}.showcase-hero__copy{z-index:1;align-self:center;max-width:50rem;position:relative}.showcase-kicker{color:#ffffff94;letter-spacing:.14em;align-items:center;gap:1.5rem;font-size:.67rem;font-weight:800;display:flex;margin-bottom:clamp(2.5rem,8vh,5.5rem)!important}.showcase-kicker span:first-child{align-items:center;gap:.65rem;display:inline-flex}.showcase-kicker span:first-child:before{content:"";background:var(--showcase-signal);width:2.8rem;height:1px}.showcase-hero h1{max-width:10ch;margin-bottom:2rem;font-size:clamp(3.8rem,8.2vw,7.9rem);font-weight:760;line-height:.96}.showcase-hero h1 em{color:var(--showcase-signal);font-style:normal;display:block}.showcase-hero__lead{color:#ffffffb3;max-width:39rem;font-family:Microsoft YaHei,sans-serif;font-size:clamp(1rem,1.5vw,1.25rem);line-height:1.85}.showcase-hero__actions{flex-wrap:wrap;gap:.8rem;margin-top:2.5rem;display:flex}.showcase-button{letter-spacing:.02em;border:1px solid #0000;border-radius:0;justify-content:center;align-items:center;gap:.8rem;min-height:50px;padding:.85rem 1.15rem;font-family:Bahnschrift,Microsoft YaHei,sans-serif;font-size:.8rem;font-weight:800;text-decoration:none;transition:transform .16s,background .16s,color .16s;display:inline-flex}.showcase-button--signal{border-color:var(--showcase-signal);background:var(--showcase-signal);color:var(--showcase-ink)}.showcase-button--line{color:#fff;border-color:#ffffff4d}.showcase-button--dark{background:var(--showcase-ink);color:#fff}.showcase-hero__instrument{isolation:isolate;aspect-ratio:.9;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);background:#ffffff09;border:1px solid #ffffff40;align-content:end;justify-self:end;width:min(100%,29rem);padding:2rem;display:grid;position:relative;box-shadow:0 2rem 6rem #00000059}.showcase-hero__instrument:before,.showcase-hero__instrument:after{content:"";border:solid var(--showcase-signal);width:.7rem;height:.7rem;position:absolute}.showcase-hero__instrument:before{border-width:2px 0 0 2px;top:-1px;left:-1px}.showcase-hero__instrument:after{border-width:0 2px 2px 0;bottom:-1px;right:-1px}.instrument-cover-stack{perspective:62rem;height:15.25rem;transform-style:preserve-3d;position:absolute;top:3.35rem;left:1.15rem;right:1.15rem}.instrument-cover-stack:before{content:"";background:linear-gradient(90deg,#0000,#d7ff4f6b 12%,#ffffff38 88%,#0000);height:1px;position:absolute;top:53%;left:0;right:0;box-shadow:0 -3.8rem #ffffff14,0 3.8rem #ffffff14}.instrument-cover-stack:after{content:"03 SOURCES / READY";color:#ffffff5c;letter-spacing:.13em;font-size:.52rem;font-weight:800;position:absolute;bottom:-.2rem;right:0}.instrument-cover{--cover-y:0rem;--cover-z:0rem;--cover-ry:0deg;--cover-rz:0deg;--cover-scale:1;--cover-spread:0rem;aspect-ratio:16/9;width:68%;color:inherit;cursor:pointer;transform:translate3d(var(--cover-spread), var(--cover-y), var(--cover-z)) rotateY(var(--cover-ry)) rotateZ(var(--cover-rz)) scale(var(--cover-scale));transform-origin:50%;transform-style:preserve-3d;margin:0;text-decoration:none;transition:left .42s cubic-bezier(.2,.75,.2,1),transform .42s cubic-bezier(.2,.75,.2,1),filter .42s;animation:.7s cubic-bezier(.2,.75,.2,1) both showcase-cover-enter;position:absolute;top:0}.instrument-cover:first-child{--cover-y:2.55rem;--cover-z:-7rem;--cover-ry:18deg;--cover-rz:-4.5deg;--cover-scale:.86;z-index:1;filter:brightness(.62)saturate(.64);left:0}.instrument-cover:nth-child(2){--cover-y:1.25rem;--cover-z:-3rem;--cover-ry:10deg;--cover-rz:-1.5deg;--cover-scale:.93;z-index:2;filter:brightness(.76)saturate(.76);animation-delay:90ms;left:15%}.instrument-cover:nth-child(3){--cover-z:1.5rem;--cover-ry:-5deg;--cover-rz:2deg;z-index:3;animation-delay:.18s;left:30%}.instrument-cover.is-front{--cover-y:-.25rem;--cover-z:3rem;--cover-ry:0deg;--cover-rz:0deg;--cover-scale:1.03;z-index:4;filter:brightness()saturate();left:16%}.instrument-cover:focus-visible{outline:2px solid var(--showcase-signal);outline-offset:.65rem}.instrument-cover__wire{z-index:-1;border:1px solid #d7ff4f7a;position:absolute;inset:-.48rem .48rem .48rem -.48rem;transform:translateZ(-1px)}.instrument-cover__wire:before,.instrument-cover__wire:after{content:"";border:solid #ffffff94;width:.42rem;height:.42rem;position:absolute}.instrument-cover__wire:before{border-width:1px 0 0 1px;top:-1px;left:-1px}.instrument-cover__wire:after{border-width:0 1px 1px 0;bottom:-1px;right:-1px}.instrument-cover img{object-fit:cover;background:#0a0d0a;border:1px solid #ffffff6b;width:100%;height:100%;box-shadow:0 1.3rem 2.8rem #0000007a}.instrument-cover__caption{color:#ffffffd6;background:linear-gradient(90deg,#080b08f0,#080b08ad);grid-template-columns:1.9rem minmax(0,1fr);align-items:center;gap:.5rem;min-height:2.15rem;padding:.45rem .55rem;display:grid;position:absolute;bottom:1px;left:1px;right:1px}.instrument-cover__caption span{color:var(--showcase-signal);letter-spacing:.1em;font-size:.55rem;font-weight:800}.instrument-cover__caption strong{text-overflow:ellipsis;white-space:nowrap;font-size:.58rem;font-weight:650;overflow:hidden}@keyframes showcase-cover-enter{0%{opacity:0;transform:translate3d(calc(var(--cover-spread) - 1.15rem), calc(var(--cover-y) + .7rem), var(--cover-z)) rotateY(var(--cover-ry)) rotateZ(var(--cover-rz)) scale(var(--cover-scale))}}.instrument-readout{gap:.8rem;display:grid}.instrument-readout p{border-top:1px solid #ffffff29;grid-template-columns:4.6rem 1fr;align-items:baseline;padding-top:.65rem;display:grid}.instrument-readout span{color:#ffffff70;letter-spacing:.11em;font-size:.6rem}.instrument-readout strong{overflow-wrap:anywhere;color:#ffffffd1;font-size:.73rem;font-weight:500}.demo-console__mode i{background:var(--showcase-signal);border-radius:50%;width:.44rem;height:.44rem;box-shadow:0 0 0 .22rem #d7ff4f1f}.showcase-hero__rail{color:#ffffff7a;letter-spacing:.08em;border-top:1px solid #ffffff38;grid-column:1/-1;grid-template-columns:repeat(4,1fr);align-items:center;min-height:65px;font-size:.67rem;font-weight:700;display:grid}.showcase-section{grid-template-columns:9rem minmax(0,1fr);padding:clamp(5rem,10vw,9rem) max(1rem,50vw - 620px);display:grid;position:relative}.showcase-section[id]{scroll-margin-top:1rem}.showcase-section__label{padding-top:.4rem}.showcase-section__label span{margin-bottom:.55rem;font-size:.65rem;font-weight:800;display:block}.showcase-section__label p{color:var(--showcase-muted);letter-spacing:.14em;writing-mode:vertical-rl;font-size:.62rem;font-weight:800}.showcase-section__label--light span{color:var(--showcase-signal)}.showcase-section__label--light p{color:#ffffff73}.showcase-overline{color:var(--showcase-muted);letter-spacing:.14em;text-transform:uppercase;font-size:.66rem;font-weight:800}.showcase-purpose{background:var(--showcase-paper);grid-template-rows:auto auto}.showcase-purpose__content{grid-template-columns:minmax(0,1.4fr) minmax(17rem,.6fr);gap:clamp(2rem,6vw,6rem);display:grid}.showcase-purpose__content>.showcase-overline{grid-column:1/-1;margin-bottom:-1.5rem}.showcase-purpose h2{max-width:8em;font-size:clamp(2.8rem,5.6vw,5.8rem);font-weight:730;line-height:1.04}.showcase-purpose h2 em{font-style:normal}.showcase-purpose__statement{align-content:end;gap:1.1rem;padding-bottom:.4rem;display:grid}.showcase-purpose__statement p{color:#4e524c;font-family:Microsoft YaHei,sans-serif;font-size:.93rem;line-height:1.9}.showcase-purpose__proofs{border-top:1px solid var(--showcase-line);border-bottom:1px solid var(--showcase-line);grid-column:2;grid-template-columns:repeat(3,1fr);margin-top:clamp(4rem,8vw,7rem);display:grid}.showcase-purpose__proofs article{border-right:1px solid var(--showcase-line);background:#ffffff1f;min-height:16rem;padding:1.7rem 1.5rem;position:relative;overflow:hidden}.showcase-purpose__proofs article:before{content:"";background:#15181557;height:.22rem;position:absolute;inset:0 0 auto}.showcase-purpose__proofs article:nth-child(2){background:#15181506}.showcase-purpose__proofs article:nth-child(2):before{background:var(--showcase-signal-dark)}.showcase-purpose__proofs article:nth-child(3){background:#d7ff4f14}.showcase-purpose__proofs article:nth-child(3):before{background:var(--showcase-ink)}.showcase-purpose__proofs article:first-child{border-left:1px solid var(--showcase-line)}.showcase-purpose__proofs article>span{border:1px solid var(--showcase-line);width:2rem;height:2rem;color:var(--showcase-muted);place-items:center;margin-bottom:3.15rem;font-size:.65rem;font-weight:800;display:grid}.showcase-purpose__proofs article:nth-child(2)>span{border-color:var(--showcase-signal-dark)}.showcase-purpose__proofs article:nth-child(3)>span{background:var(--showcase-ink);color:var(--showcase-paper)}.showcase-purpose__proofs h3{letter-spacing:-.01em;margin-bottom:1rem;font-size:1.12rem;line-height:1.35}.showcase-purpose__proofs p{color:var(--showcase-muted);font-family:Microsoft YaHei,sans-serif;font-size:.8rem;line-height:1.8}.showcase-audience{background:var(--showcase-paper-bright)}.showcase-audience__heading{justify-content:space-between;align-items:end;gap:2rem;margin-bottom:4rem;display:flex}.showcase-audience__heading h2{max-width:9em;margin-top:1rem;font-size:clamp(2.6rem,5vw,5rem);line-height:1.06}.showcase-audience__heading h2>span{display:block}.showcase-audience__heading .showcase-audience__lead-in{letter-spacing:.04em;margin-bottom:.7em;font-family:Microsoft YaHei,sans-serif;font-size:.42em;font-weight:700;line-height:1.45}.showcase-audience__grid{border-top:1px solid var(--showcase-line);border-left:1px solid var(--showcase-line);grid-column:2;grid-template-columns:repeat(2,1fr);display:grid}.showcase-audience__grid article{--audience-accent:#15181557;border-right:1px solid var(--showcase-line);border-bottom:1px solid var(--showcase-line);background:#ffffff1f;min-height:17rem;padding:clamp(1.5rem,3vw,2.4rem);transition:background .18s,box-shadow .18s,color .18s,transform .18s;position:relative;overflow:hidden}.showcase-audience__grid article:before{content:"";background:var(--audience-accent);height:.22rem;position:absolute;inset:0 0 auto}.showcase-audience__grid article:nth-child(2){--audience-accent:var(--showcase-signal-dark);background:#15181506}.showcase-audience__grid article:nth-child(3){--audience-accent:var(--showcase-ink);background:#d7ff4f14}.showcase-audience__grid article:nth-child(4){--audience-accent:var(--showcase-ink);background:#1518150e}.showcase-audience__icon{width:3.35rem;height:3.35rem;color:var(--showcase-ink);background:0 0;border:1px solid #15181557;place-items:center;margin-bottom:3.6rem;transition:transform .18s;display:grid;position:relative;top:-.5rem;left:-.5rem}.showcase-audience__icon svg{width:1.75rem;height:1.75rem}.showcase-audience__grid h3{margin-bottom:1rem;font-size:clamp(1.5rem,2.5vw,2.25rem)}.showcase-audience__grid p{max-width:29rem;color:var(--showcase-muted);font-family:Microsoft YaHei,sans-serif;font-size:.86rem;line-height:1.8;transition:color .18s}@media (hover:hover) and (pointer:fine){.showcase-audience__grid article:hover{z-index:1;transform:translateY(-.35rem);box-shadow:0 1.25rem 2.5rem #1518151a}.showcase-audience__grid article:hover .showcase-audience__icon{transform:translateY(-.18rem)}}.showcase-process{background:var(--showcase-ink);color:#fff}.showcase-process__heading{grid-template-columns:1fr minmax(16rem,.4fr);align-items:end;gap:2rem;margin-bottom:4rem;display:grid}.showcase-process__heading .showcase-overline{color:var(--showcase-signal);grid-column:1/-1}.showcase-process__heading h2{max-width:8em;font-size:clamp(2.8rem,5vw,5rem);line-height:1.04}.showcase-process__heading>p:last-child{color:#ffffff8c;font-family:Microsoft YaHei,sans-serif;font-size:.86rem;line-height:1.8}.showcase-process__list{border-top:1px solid #fff3;grid-column:2;margin:0;padding:0;list-style:none}.showcase-process__list li{border-bottom:1px solid #fff3;grid-template-columns:5rem minmax(0,1fr) auto;align-items:center;gap:2rem;min-height:10rem;padding:1.6rem 0;display:grid}.process-index{color:var(--showcase-signal);align-self:start;font-size:.72rem;font-weight:800}.showcase-process__list h3{margin-bottom:.6rem;font-size:clamp(1.5rem,2.8vw,2.25rem)}.showcase-process__list p{color:#ffffff94;max-width:46rem;font-family:Microsoft YaHei,sans-serif;font-size:.84rem;line-height:1.8}.showcase-process__list code{color:var(--showcase-signal);white-space:nowrap;border:1px solid #d7ff4f52;padding:.55rem .7rem;font-size:.66rem}.showcase-demo{background:var(--showcase-paper)}.showcase-demo__heading{grid-template-columns:1.25fr .75fr;align-items:end;gap:clamp(2rem,6vw,6rem);display:grid}.showcase-demo__heading h2{max-width:6em;margin-top:1rem;font-size:clamp(2.7rem,5vw,5rem);line-height:1.04}.showcase-demo__heading>p{color:var(--showcase-muted);font-family:Microsoft YaHei,sans-serif;font-size:.82rem;line-height:1.85}.demo-selector{border-top:1px solid var(--showcase-line);border-left:1px solid var(--showcase-line);grid-column:2;grid-template-columns:repeat(3,1fr);margin-top:4rem;display:grid}.demo-selector button{border:0;border-right:1px solid var(--showcase-line);border-bottom:1px solid var(--showcase-line);min-height:9.5rem;color:var(--showcase-ink);cursor:pointer;text-align:left;background:0 0;grid-template-columns:auto 1fr;align-content:start;gap:.75rem 1rem;padding:1.3rem;transition:background .16s,color .16s;display:grid}.demo-selector button>span{color:var(--showcase-muted);font-size:.65rem}.demo-selector button strong{font-size:.8rem}.demo-selector button small{color:var(--showcase-muted);grid-column:1/-1;align-self:end;font-family:Microsoft YaHei,sans-serif;font-size:.76rem;line-height:1.55}.demo-selector button.is-active{background:var(--showcase-signal)}.demo-selector button.is-active>span,.demo-selector button.is-active small{color:#354000}.demo-workbench{border:1px solid var(--showcase-ink);background:var(--showcase-paper-bright);border-top:0;grid-column:2;grid-template-columns:minmax(16rem,.66fr) minmax(0,1.34fr);min-height:42rem;display:grid}.demo-source-card{border-right:1px solid var(--showcase-ink);grid-template-rows:auto 1fr;display:grid}.demo-source-card__visual{aspect-ratio:4/3;background:var(--showcase-ink);color:#fff;min-height:0;position:relative;overflow:hidden}.demo-source-card__visual:after{content:"";pointer-events:none;background:linear-gradient(#0a0c0a14 42%,#0a0c0a85 100%);position:absolute;inset:0}.demo-source-card__visual>img{object-fit:cover;width:100%;height:100%;display:block}.demo-subtitle-language{z-index:3;gap:.05rem;display:flex;position:absolute;top:.65rem;right:.65rem}.demo-subtitle-language button{color:#ffffffad;width:2.75rem;height:2.75rem;font:inherit;cursor:pointer;background:0 0;border:0;place-items:center;padding:0;font-size:.58rem;font-weight:800;line-height:1;display:grid}.demo-subtitle-language button>span{-webkit-backdrop-filter:blur(.35rem);backdrop-filter:blur(.35rem);background:#0c0f0cc7;border:1px solid #ffffff80;place-items:center;width:1.75rem;height:1.75rem;display:grid}.demo-subtitle-language button[aria-pressed=true]>span{border-color:var(--showcase-signal);background:var(--showcase-signal);color:var(--showcase-ink)}.demo-subtitle-language button:focus-visible{outline:0}.demo-subtitle-language button:focus-visible>span{outline-offset:2px;outline:2px solid #fff}.demo-subtitle-bar{z-index:3;-webkit-backdrop-filter:blur(.45rem);backdrop-filter:blur(.45rem);background:#0c0f0cdb;border-top:1px solid #ffffff47;grid-template-columns:auto minmax(0,1fr);align-items:center;min-height:2.1rem;display:grid;position:absolute;bottom:0;left:0;right:0;overflow:hidden}.demo-subtitle-bar__mark{z-index:1;min-width:2.2rem;color:var(--showcase-signal);letter-spacing:.08em;border-right:1px solid #ffffff3d;align-self:stretch;place-items:center;font-size:.55rem;font-weight:800;display:grid;position:relative}.demo-subtitle-viewport{min-width:0;overflow:hidden;-webkit-mask-image:linear-gradient(90deg,#0000,#000 .8rem calc(100% - .8rem),#0000);mask-image:linear-gradient(90deg,#0000,#000 .8rem calc(100% - .8rem),#0000)}.demo-subtitle-track{will-change:transform;width:max-content;animation:36s linear infinite demo-subtitle-scroll;display:flex}.demo-subtitle-track--32{animation-duration:32s}.demo-subtitle-track--34{animation-duration:34s}.demo-subtitle-track--36{animation-duration:36s}.demo-subtitle-track--38{animation-duration:38s}.demo-subtitle-track--40{animation-duration:40s}.demo-subtitle-track--42{animation-duration:42s}.demo-subtitle-track>span{color:#fffffff0;white-space:nowrap;flex:none;padding-right:3rem;font-family:Microsoft YaHei,sans-serif;font-size:.68rem;line-height:1}@keyframes demo-subtitle-scroll{to{transform:translate(-50%)}}@media (prefers-reduced-motion:reduce){.demo-subtitle-track{animation:none;transform:none}}.demo-source-card__body{padding:1.5rem}.demo-source-card__body h3{letter-spacing:-.035em;margin:.8rem 0 .55rem;font-size:clamp(1.45rem,2.4vw,2rem);line-height:1.08}.demo-source-card__body>p:not(.showcase-overline){color:var(--showcase-muted);font-size:.75rem;line-height:1.6}.demo-source-card__status{border-top:1px solid var(--showcase-line);border-bottom:1px solid var(--showcase-line);gap:.55rem;margin:1.5rem 0;padding:1rem 0;display:grid}.demo-source-card__status span{color:#4a4d47;align-items:center;gap:.5rem;font-size:.7rem;display:flex}.demo-source-card__status i{background:#4a7225;border-radius:50%;width:.42rem;height:.42rem}.demo-source-card__body>a{text-underline-offset:.25rem;align-items:center;gap:.55rem;min-height:44px;font-size:.73rem;font-weight:800;display:inline-flex}.demo-console{background:#f9f9f4;flex-direction:column;min-width:0;display:flex}.demo-console__bar{border-bottom:1px solid var(--showcase-line);min-height:52px;color:var(--showcase-muted);letter-spacing:.08em;justify-content:space-between;align-items:center;gap:1rem;padding:0 1.25rem;font-size:.61rem;font-weight:800;display:flex}.demo-console__mode{color:#47531b;align-items:center;gap:.5rem;display:inline-flex}.demo-question{border-bottom:1px solid var(--showcase-line);padding:clamp(1.5rem,4vw,2.8rem)}.demo-question>span{color:var(--showcase-muted);letter-spacing:.08em;font-size:.65rem;font-weight:800}.demo-question p{max-width:30ch;margin-top:1.2rem;font-family:Songti SC,SimSun,serif;font-size:clamp(1.45rem,3vw,2.3rem);font-weight:700;line-height:1.35}.demo-pipeline{border-bottom:1px solid var(--showcase-line);grid-template-columns:repeat(3,1fr);display:grid}.demo-pipeline span{border-right:1px solid var(--showcase-line);color:#8a8c85;align-items:center;min-height:48px;padding:0 1rem;font-size:.62rem;font-weight:700;display:flex}.demo-pipeline span:last-child{border-right:0}.demo-pipeline span.is-complete{color:#314000;background:#d7ff4f38}.demo-console__ready{align-content:center;justify-items:start;min-height:17rem;padding:clamp(1.5rem,4vw,2.8rem);display:grid}.demo-console__ready .showcase-button{cursor:pointer}.demo-answer{padding:clamp(1.5rem,4vw,2.8rem)}.demo-answer__label{align-items:center;gap:.7rem;margin-bottom:1.5rem;display:flex}.demo-answer__mark{width:2.25rem;height:2.25rem}.demo-answer__label p{color:var(--showcase-muted);font-size:.65rem;font-weight:800}.demo-answer__lead{font-family:Songti SC,SimSun,serif;font-size:1.15rem;font-weight:700;line-height:1.65}.demo-answer ol{gap:.75rem;margin:1.2rem 0 1.8rem;padding-left:1.2rem;display:grid}.demo-answer li{color:#4e514b;padding-left:.35rem;font-family:Microsoft YaHei,sans-serif;font-size:.8rem;line-height:1.75}.demo-typewriter{white-space:pre-wrap;opacity:0;filter:blur(.12rem);animation:.28s ease-out forwards demo-segment-in;display:inline;transform:translateY(.16em)}@keyframes demo-segment-in{to{opacity:1;filter:blur();transform:translateY(0)}}.demo-evidence{border-top:1px solid var(--showcase-line)}.demo-evidence>p{color:var(--showcase-muted);letter-spacing:.09em;padding:1rem 0 .65rem;font-size:.62rem;font-weight:800}.demo-evidence a{min-height:48px;color:inherit;border-top:1px solid #1518151a;grid-template-columns:3.2rem 1fr auto;align-items:center;gap:.8rem;text-decoration:none;display:grid}.demo-evidence strong{color:#536300;font-size:.72rem}.demo-evidence span{overflow-wrap:anywhere;min-width:0;color:var(--showcase-muted);font-size:.72rem}.demo-reset{min-height:44px;color:var(--showcase-muted);cursor:pointer;text-underline-offset:.2rem;background:0 0;border:0;margin-top:1rem;padding:0;font-size:.7rem;font-weight:800;text-decoration:underline}@media (prefers-reduced-motion:reduce){.demo-typewriter{opacity:1;filter:none;transform:none;animation:none!important}}.showcase-cta{background:var(--showcase-signal);text-align:center;justify-items:center;padding:clamp(6rem,13vw,11rem) 1rem;display:grid}.showcase-cta .showcase-overline{color:#566414}.showcase-cta h2{max-width:7em;margin:1.5rem 0 2.5rem;font-size:clamp(3rem,7vw,7rem);line-height:1}.showcase-cta__note{color:#596419;letter-spacing:.04em;font-size:.67rem;font-weight:700;margin-top:1.5rem!important}.showcase-footer{background:var(--showcase-ink);color:#fff;grid-template-columns:1fr auto 1fr;align-items:center;gap:1rem;min-height:112px;padding:0 max(1rem,50vw - 620px);display:grid}.showcase-brand--footer{justify-self:start}.showcase-footer p{color:#ffffff70;letter-spacing:.08em;justify-items:center;gap:.35rem;font-size:.64rem;display:grid}.showcase-footer p a{color:inherit;text-decoration:none}.showcase-footer p a:hover{color:#ffffffb8;text-underline-offset:.2rem;text-decoration:underline}.showcase-footer>a:last-child{color:#ffffffb8;justify-self:end;font-size:.69rem;font-weight:700;text-decoration:none}@media (hover:hover) and (pointer:fine){.showcase-nav nav a:hover{color:var(--showcase-signal)}.showcase-button:hover{transform:translateY(-2px)}.showcase-button--signal:hover{background:#e2ff7d}.showcase-button--line:hover{color:var(--showcase-ink);background:#fff;border-color:#fff}.demo-selector button:not(.is-active):hover{background:#1518150f}.demo-evidence a:hover span{text-underline-offset:.2rem;text-decoration:underline}.demo-reset:hover{color:var(--showcase-ink)}.showcase-hero__instrument:hover .instrument-cover:first-child{--cover-spread:-.85rem}.showcase-hero__instrument:hover .instrument-cover:nth-child(2){--cover-spread:-.2rem}.showcase-hero__instrument:hover .instrument-cover:nth-child(3){--cover-spread:.85rem}}@media (width>=1180px){.showcase-hero{grid-template-columns:minmax(0,1.12fr) minmax(25rem,.72fr)}.showcase-section{column-gap:clamp(1.5rem,3vw,3.5rem)}.showcase-audience__grid{grid-template-columns:repeat(4,minmax(0,1fr))}.showcase-audience__grid article{flex-direction:column;min-height:23rem;display:flex}.showcase-audience__grid article>.showcase-audience__icon{margin-bottom:auto}.demo-workbench{grid-template-columns:minmax(18rem,.62fr) minmax(0,1.38fr)}.demo-source-card__visual{min-height:0}}@media (width<=980px){.showcase-nav{grid-template-columns:1fr auto}.showcase-nav nav{display:none}.showcase-hero{grid-template-columns:1fr;min-height:auto;padding-top:9rem}.showcase-hero__instrument{aspect-ratio:1.2;justify-self:stretch;width:min(100%,36rem)}.instrument-cover-stack{height:14.5rem}.showcase-section{grid-template-columns:4.5rem minmax(0,1fr)}.showcase-purpose__content{grid-template-columns:1fr}.showcase-purpose__proofs{grid-column:2}.showcase-demo__heading,.demo-workbench{grid-template-columns:1fr}.demo-source-card{border-right:0;border-bottom:1px solid var(--showcase-ink);grid-template-rows:auto;grid-template-columns:.7fr 1fr}.demo-source-card__visual{aspect-ratio:auto;min-height:15rem}}@media (width<=700px){.showcase-nav{min-height:68px}.showcase-brand>span:last-child{font-size:.62rem}.showcase-nav__cta{font-size:.7rem}.showcase-hero{padding-top:calc(7.75rem + env(safe-area-inset-top));display:block}.showcase-kicker{justify-content:space-between;gap:.5rem;margin-bottom:2.5rem!important}.showcase-kicker span:first-child:before{width:1.2rem}.showcase-hero h1{font-size:clamp(3.25rem,18vw,5.6rem)}.showcase-hero__actions{grid-template-columns:1fr;gap:.65rem;display:grid}.showcase-hero__actions .showcase-button{width:100%}.showcase-hero__instrument{aspect-ratio:auto;min-height:25rem;margin-top:3rem;padding:1rem}.instrument-cover-stack{height:12.25rem;top:3.3rem;left:.85rem;right:.85rem}.instrument-cover{width:69%}.instrument-cover__caption{grid-template-columns:1.55rem minmax(0,1fr);min-height:1.9rem;padding:.35rem .45rem}.instrument-cover__caption strong{font-size:.52rem}.instrument-readout{gap:.45rem}.instrument-readout p{grid-template-columns:4.2rem 1fr}.showcase-hero__rail{grid-template-columns:repeat(2,1fr);gap:1rem;margin-top:2.5rem;padding:1rem 0}.showcase-section{padding-block:4.5rem;display:block}.showcase-section__label{align-items:center;gap:.7rem;margin-bottom:2rem;display:flex}.showcase-section__label span{margin:0}.showcase-section__label p{writing-mode:horizontal-tb}.showcase-purpose__content>.showcase-overline{margin-bottom:0}.showcase-purpose h2,.showcase-audience__heading h2,.showcase-process__heading h2,.showcase-demo__heading h2{font-size:clamp(2.45rem,10vw,4rem)}.showcase-audience__heading{margin-bottom:3rem;display:block}.showcase-purpose__statement p,.showcase-purpose__proofs p,.showcase-audience__grid p,.showcase-process__list p,.showcase-demo__heading>p,.demo-answer li{font-size:1rem;line-height:1.75}.showcase-purpose__proofs{border-bottom:0;grid-template-columns:1fr;margin-top:3rem}.showcase-purpose__proofs article{border-bottom:1px solid var(--showcase-line);border-left:1px solid var(--showcase-line);grid-template-columns:2rem minmax(0,1fr);gap:.35rem .85rem;min-height:auto;padding:1.25rem;display:grid}.showcase-purpose__proofs article>span{grid-row:1/span 2;margin:0;padding-top:.2rem}.showcase-purpose__proofs h3,.showcase-purpose__proofs p{grid-column:2}.showcase-purpose__proofs h3{margin-bottom:.2rem}.showcase-audience__grid{grid-template-columns:1fr}.showcase-audience__grid article{grid-template-columns:3rem minmax(0,1fr);gap:.35rem .85rem;min-height:auto;padding:1.4rem 1.25rem;display:grid}.showcase-audience__grid article>.showcase-audience__icon{grid-row:1/span 2;width:2.75rem;height:2.75rem;margin:0;top:-.25rem;left:-.25rem}.showcase-audience__grid h3,.showcase-audience__grid p{grid-column:2}.showcase-audience__grid h3{margin-bottom:.2rem}.showcase-process__heading{display:block}.showcase-process__heading>p:last-child{margin-top:1.5rem}.showcase-process__list li{grid-template-columns:2.5rem 1fr;gap:1rem}.showcase-process__list code{grid-column:2;justify-self:start}.demo-selector{scroll-snap-type:x mandatory;scrollbar-width:none;border:0;gap:.75rem;margin-right:-1rem;padding-right:1rem;scroll-padding-inline:0;display:flex;overflow-x:auto}.demo-selector::-webkit-scrollbar{display:none}.demo-selector button{border:1px solid var(--showcase-line);scroll-snap-align:start;min-width:min(78vw,19rem);min-height:7rem}.demo-workbench{border-top:0}.demo-source-card{grid-template-columns:7rem minmax(0,1fr)}.demo-source-card__visual{min-height:0}.demo-subtitle-language{top:.4rem;right:.4rem}.demo-subtitle-language button{font-size:.52rem}.demo-subtitle-bar{min-height:1.85rem}.demo-subtitle-bar__mark{min-width:1.8rem}.demo-subtitle-track>span{font-size:.61rem}.demo-source-card__body{padding:1.25rem}.demo-source-card__body h3{font-size:1.3rem}.demo-source-card__status{margin:1rem 0}.demo-question p{font-size:1.5rem}.demo-pipeline{grid-template-columns:repeat(3,1fr)}.demo-pipeline span{border-right:1px solid var(--showcase-line);text-align:center;border-bottom:0;justify-content:center;min-height:64px;padding:.6rem;font-size:.65rem;line-height:1.35}.demo-pipeline span:last-child{border-right:0}.demo-evidence a{grid-template-columns:3rem 1fr auto}.showcase-cta h2{font-size:clamp(2.75rem,12vw,5rem)}.showcase-cta__note{max-width:32rem;line-height:1.65}.showcase-footer{padding:1.5rem 1rem calc(1.5rem + env(safe-area-inset-bottom));grid-template-columns:1fr auto}.showcase-footer p{grid-area:2/1/auto/-1;justify-items:start}}