:root{--paper:#faf9f6;--ink:#242a26;--muted:#7c827a;--line:#e5e7de;--green:#45634d;--orange:#d8985f}*{box-sizing:border-box}body{margin:0;background:var(--paper);color:var(--ink);font-family:Inter,"Segoe UI","Microsoft YaHei",sans-serif;font-size:14px;line-height:1.7}a{color:inherit;text-decoration:none}button,a,input,select{touch-action:manipulation}button,a,input,select:focus-visible{outline-color:var(--green)}.site-header{height:88px;max-width:1240px;margin:auto;display:flex;align-items:center;justify-content:space-between;padding:0 36px;border-bottom:1px solid var(--line)}.brand{display:flex;align-items:center;gap:12px;font-weight:700;font-size:17px;letter-spacing:.5px}.brand-icon{display:grid;place-items:center;background:var(--green);color:#fff;width:34px;height:36px;border-radius:10px 10px 10px 0;font-family:serif}.brand img{width:36px;height:36px;object-fit:contain}nav{display:flex;gap:34px;align-items:center}nav>a{font-size:13px}.edition-label{font-size:12px;color:var(--muted)}main{max-width:1168px;margin:auto}.hero{padding:62px 0 0}.eyebrow{display:flex;align-items:center;gap:10px;font-size:10px;font-weight:600;letter-spacing:2px;color:var(--green)}.live-dot{height:6px;width:6px;border-radius:100%;background:var(--green)}.hero-date{margin-left:auto;letter-spacing:1px;color:var(--muted)}h1{font-size:54px;line-height:1.4;letter-spacing:-1.5px;font-weight:600;margin:22px 0 18px}.hero h1 span{color:var(--green)}.hero>p{color:var(--muted);font-size:15px}.hero-bottom{display:flex;justify-content:space-between;border-bottom:1px solid var(--line);padding:30px 0 23px;margin-top:30px;color:var(--muted);font-size:11px;letter-spacing:1px}.issue{font-family:monospace;font-size:10px}.workspace{display:grid;grid-template-columns:285px 1fr;gap:48px;margin:38px 0 70px}.panel{border:1px solid var(--line);border-radius:12px;background:#fff;padding:26px}.section-kicker{font-size:10px;letter-spacing:2px;color:var(--muted);font-weight:600}h2{font-size:19px;letter-spacing:.2px;margin:9px 0 7px;font-weight:600}.muted{color:var(--muted);font-size:12px}.preferences .muted{margin-bottom:23px}label{display:block;font-size:12px;font-weight:600;margin:18px 0 9px}input,select{border:1px solid var(--line);border-radius:6px;background:var(--paper);font:inherit;color:var(--ink);padding:11px 12px;min-width:0}input{width:100%}input::placeholder{font-size:12px;color:#a1a59d}.field-help{font-size:10px;color:#979d93;margin:7px 0 23px}button{font:inherit;background:var(--green);border:0;color:white;border-radius:6px;padding:12px 16px;cursor:pointer;transition:background .2s}button:hover{background:#344d3a}#preferences button{width:100%;display:flex;justify-content:space-between;align-items:center;font-size:12px}.save-note{display:block;text-align:center;font-size:10px;color:#999f96;margin-top:14px}.sources{margin-top:20px;background:#f2f3ed;border-color:#f2f3ed}.sources h2{font-size:15px;margin-bottom:22px}.source-row{display:flex;gap:9px;align-items:center;font-size:12px;padding:11px 0;border-bottom:1px solid #e2e6dc}.source-row>span:last-child{margin-left:auto;color:#a7aea1}.source-dot{display:inline-block;flex-shrink:0;width:6px;height:6px;border-radius:50%;background:#c97864}.source-dot.zhihu{background:#6e91b4}.sources p{font-size:10px;line-height:1.9;margin-top:20px}.feed-toolbar{display:flex;align-items:center;justify-content:space-between;margin:0 0 23px}.feed-toolbar h2{font-size:24px;margin-top:5px}.feed-toolbar form{display:flex;gap:5px}.feed-toolbar select{font-size:11px;padding:8px}.date-button{padding:8px 10px;font-size:11px}.notice{border:1px solid #e4d6b7;background:#fbf7ec;color:#806631;border-radius:7px;padding:13px 17px;font-size:12px;margin:12px 0 24px}.preference-chips{display:flex;gap:8px;flex-wrap:wrap;margin:0 0 23px}.preference-chips span{background:#eaf0e7;color:var(--green);padding:5px 12px;border-radius:4px;font-size:11px}.feed-section-title{display:flex;align-items:center;justify-content:space-between;padding:12px 0;border-top:1px solid var(--line);margin-top:26px}.feed-section-title h2{font:11px monospace;color:var(--muted);margin:0}.feed-section-title h2 span{font:600 16px "Microsoft YaHei",sans-serif;color:var(--ink);margin-left:12px}.feed-section-title>span{font-size:10px;color:var(--muted)}.news-card{padding:25px 28px;background:#fff;border:1px solid var(--line);border-radius:10px;margin-bottom:14px}.article-meta{display:flex;align-items:center;gap:8px;font-size:10px;color:var(--muted);flex-wrap:wrap}.article-date{margin-left:auto;font-family:monospace}.news-card h3{font-size:19px;font-weight:600;line-height:1.65;margin:13px 0 10px}.news-card h3 a:hover{color:var(--green)}.summary{color:#6a736b;font-size:13px;overflow-wrap:anywhere}.summary p{margin:8px 0 15px}.read-original{font-size:11px;color:var(--green);display:inline-flex;gap:12px;align-items:center}.empty{border:1px dashed #dce1d5;border-radius:10px;text-align:center;padding:42px 18px;color:var(--muted);background:#f7f8f2}.empty-symbol{font-size:45px;display:inline-block;color:#85977b;font-weight:300}.empty h3{color:#52634e;font-weight:500;font-size:17px}.empty p{font-size:12px}.empty-caption{font-size:10px;color:#a1a89b}.empty.welcome{padding:60px 18px}.empty.compact{padding:25px}.feed-end{display:flex;justify-content:space-between;font-size:10px;color:#959e91;border-top:1px solid var(--line);margin-top:28px;padding-top:17px}footer{max-width:1168px;margin:auto;border-top:1px solid var(--line);padding:24px 0;display:flex;justify-content:space-between;color:var(--muted);font-size:10px}.admin-shell{max-width:580px;margin:65px auto}.admin-shell h1{font-size:28px;letter-spacing:0}.admin-shell button{margin-top:24px}.admin-shell .secondary{background:#eef1e9;color:var(--green);margin-top:12px}.success{color:var(--green);background:#edf5e9;padding:12px}.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0)}pre{overflow-x:auto;padding:15px;border-radius:6px;background:#f3f5ef;font-size:12px}code{font-family:Consolas,monospace}.codehilite{overflow:hidden;border-radius:6px}@media(min-width:1450px){.hero{padding-top:75px}.hero h1{font-size:61px}}@media(max-width:1240px){main,footer{margin-left:36px;margin-right:36px}}@media(max-width:850px){.workspace{grid-template-columns:240px 1fr;gap:24px}.panel{padding:20px}.news-card{padding:20px}.feed-toolbar{align-items:flex-start;gap:15px;flex-direction:column}.edition-label{display:none}h1{font-size:44px}}@media(max-width:600px){.site-header{padding:0 20px;height:72px}.brand{font-size:14px}nav>a{font-size:11px}main,footer{margin-left:20px;margin-right:20px}.hero{padding-top:36px}h1{font-size:36px;letter-spacing:-1px}.eyebrow{font-size:8px;letter-spacing:1.3px}.hero>p{font-size:13px}.hero-bottom{margin-top:22px;padding-top:17px;font-size:10px}.issue{display:none}.workspace{grid-template-columns:1fr;gap:30px;margin-top:25px}.sources{display:none}.preferences{padding:23px}.preferences h2{font-size:20px}.preferences .muted{margin-bottom:12px}.feed-toolbar{flex-direction:row;align-items:center}.feed-toolbar h2{font-size:21px}.feed-toolbar form{flex-wrap:wrap;justify-content:flex-end}.feed-toolbar select{max-width:125px}.news-card h3{font-size:17px}.article-date{margin-left:0}.feed-section-title>span{font-size:9px}.feed-end{gap:15px}.feed-end>span{white-space:nowrap}footer{gap:20px}.admin-shell{margin-top:32px}.hero-date{font-size:9px}}

.source-dot.sciencenet{background:#527ba1}

.identity>summary{cursor:pointer;font-size:22px;font-weight:650;color:var(--green);list-style:none}.identity>summary span{float:right}.identity[open]>summary span{transform:rotate(45deg)}.identity form{margin-top:14px}.identity input{margin-bottom:5px}.source-dot.sciencedaily{background:#6b8a62}.source-dot.hackernews{background:#e66d35}.article-tags{display:flex;flex-wrap:wrap;gap:7px;margin:15px 0}.article-tags span{font-size:11px;background:#f6e6da;color:#9f4e28;padding:2px 8px;border-radius:4px}.card-score{font-size:11px;color:#b35d2d}.research-article{max-width:980px;margin:42px auto 70px;overflow-wrap:anywhere}.back-link{font-size:13px;color:var(--muted);display:inline-block;margin-bottom:30px}.article-heading{display:flex;align-items:baseline;gap:16px;flex-wrap:wrap}.article-heading h1{font-size:30px;line-height:1.5;letter-spacing:0;margin:12px 0 20px}.article-heading h1 a{color:#7148a5;text-decoration:underline}.score-badge{background:#e86a2a;color:white;padding:3px 10px;border-radius:4px;white-space:nowrap}.score-badge small{font-size:11px}.article-lead{font-size:19px;line-height:1.9;color:var(--ink)}.article-byline{border-left:3px solid #e86a2a;padding-left:12px;color:var(--muted);margin:25px 0;font-size:13px}.article-section{margin:26px 0;font-size:17px;line-height:1.95}.article-section h2{font-size:19px}.article-section dl{margin:16px 0}.article-section dt{font-weight:650}.article-section dd{margin:5px 0}.references,.scoring-guide{border:1px solid var(--line);border-radius:5px;padding:14px 18px;margin:25px 0}.references summary,.scoring-guide summary{cursor:pointer;font-weight:600}.references a{color:#7148a5;text-decoration:underline}@media(max-width:600px){.research-article{margin:28px auto 45px}.article-heading h1{font-size:24px}.article-lead{font-size:16px}.article-section{font-size:15px}.article-heading{gap:0}.score-badge{margin-bottom:14px}.references{padding:12px}}
/* Grid-paper visual system */
:root{--paper:#fff;--ink:#121212;--muted:#707070;--line:#e6e6e6;--green:#ed3900;--orange:#ed3900}html{scroll-behavior:smooth;scroll-padding-top:28px}body{background-color:#fff;background-image:linear-gradient(#ededed80 1px,transparent 1px),linear-gradient(90deg,#ededed80 1px,transparent 1px);background-size:96px 96px}button,a,input,select,summary{outline-offset:5px}a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,summary:focus-visible{outline:2px solid var(--orange)}.site-header{max-width:none;height:76px;padding:0 3%;border-bottom:1px solid var(--line)}.brand-icon{background:white;color:black;border:1px solid #333;border-radius:0;font-family:inherit}.site-header nav{gap:26px}main{max-width:1168px}.hero{padding:100px 0 0;text-align:center;min-height:calc(100svh - 76px);display:flex;flex-direction:column;align-items:center;position:relative}.hero h1{font-size:clamp(36px,4.8vw,68px);line-height:1.22;font-weight:500;letter-spacing:-2px;margin:22px 0}.hero-copy{transition:opacity .35s,transform .35s}.hero .eyebrow{justify-content:center;font:10px monospace;letter-spacing:2px;color:#777}.hero-copy>p{color:var(--muted);max-width:600px;margin:0 auto 28px}.primary-link{display:inline-flex;gap:32px;align-items:center;background:var(--orange);color:white;padding:16px 27px;font-size:16px;margin:0 0 22px}.primary-link:hover,button:hover{background:#c83100}.cube-caption{font-size:12px;line-height:1.9}.hero-bottom{width:100%;margin-top:auto;padding:36px 0 28px;border:0;text-align:left;align-items:center;line-height:1.5;letter-spacing:0}.hero-bottom>a{font-size:25px;color:#111}.identity-stage{width:100%;height:150px;position:relative;display:grid;place-items:center;margin-bottom:20px;perspective:850px;transition:height .65s}.cube-trigger{position:relative;width:160px;height:140px;background:transparent!important;border:0;padding:0;cursor:pointer;perspective:700px;overflow:visible}.cube{position:absolute;left:50%;top:50%;width:0;height:0;transform-style:preserve-3d;transform:rotateX(-24deg) rotateY(-35deg);animation:cube-drift 7s ease-in-out infinite}.cubie{position:absolute;left:-15px;top:-15px;width:30px;height:30px;transform-style:preserve-3d;transform:translate3d(calc(var(--x)*32px),calc(var(--y)*32px),calc(var(--z)*32px));transition:transform .8s cubic-bezier(.2,.7,.2,1),opacity .4s}.face{position:absolute;inset:0;border:1px solid #2228;backface-visibility:hidden}.front{background:#a9dc00;transform:translateZ(15px)}.back{background:#ad68f4;transform:rotateY(180deg) translateZ(15px)}.right{background:#075bea;transform:rotateY(90deg) translateZ(15px)}.left{background:#f7f7f5;transform:rotateY(-90deg) translateZ(15px)}.top{background:#b987f4;transform:rotateX(90deg) translateZ(15px)}.bottom{background:#ffb900;transform:rotateX(-90deg) translateZ(15px)}.cubie:nth-child(3n) .front{background:#ffb900}.cubie:nth-child(2n) .right{background:#bd1942}.cubie:nth-child(3n) .top{background:#1582ff}.cube-shadow{position:absolute;width:100px;height:35px;left:69px;top:103px;background:#20202066;transform:skewX(45deg) rotate(-10deg);filter:blur(2px);transition:opacity .5s}@keyframes cube-drift{0%,100%{transform:rotateX(-24deg) rotateY(-35deg) translateY(0)}50%{transform:rotateX(-18deg) rotateY(-15deg) translateY(-7px)}}.identity{position:relative;width:min(420px,100%);text-align:left;padding:28px;background:#fff}.identity>summary{font-size:28px;font-weight:500;color:#111}.identity-close{position:absolute;right:18px;top:16px;color:#555;background:white!important;font-size:25px;padding:0 8px}.identity-close{display:none}.identity[open] .identity-close{display:block}.identity[open]>summary{pointer-events:none}.identity[open]>summary span{display:none}.hero.interactive .identity{position:absolute;top:0;left:50%;transform:translateX(-50%);visibility:hidden;opacity:0;transition:opacity .35s .15s,visibility .35s}.hero.interactive .identity-open .identity{visibility:visible;opacity:1}.hero.interactive .identity-open{height:480px}.identity-open .cube-trigger{position:absolute;top:110px;pointer-events:none}.identity-open .cube{animation-play-state:paused}.identity-open .cubie{transform:translate3d(calc(var(--x)*260px),calc(var(--y)*130px),calc(var(--z)*95px)) rotateX(25deg) rotateY(30deg);opacity:.55}.identity-open .cube-shadow{opacity:0}.hero:has(.identity-open) .hero-copy{display:none}.hero:has(.identity-open){padding-top:55px}.panel,.news-card,.empty,.notice,.references,.scoring-guide{border-radius:0;background:#fff}.panel{padding:25px}.sources{background:#fff;border-color:var(--line);margin-top:16px}.source-row{border-color:var(--line)}.workspace{padding:48px 0;margin:0 0 55px;border-top:1px solid var(--line);scroll-margin-top:30px}.edit-identity{width:100%;text-align:left;background:#111;padding:16px 22px}.edit-identity span{float:right}.news-card{padding:27px 30px;margin-bottom:16px}.news-card h3{color:#111}.summary{color:#555}.article-tags span,.preference-chips span{background:#f5f5f5;color:#555;border-radius:0}.card-score{color:var(--orange)}input,select,button,.score-badge,pre,.codehilite{border-radius:0}input,select{background:#fff}.notice{background:#fffaf6;border-color:#eaded6;color:#895134}.empty{border-color:#ddd;background:#ffffffed}.empty h3,.empty-symbol{color:#555}.feed-end{color:#777}.research-article{background:#fff;padding:36px 44px;border:1px solid var(--line)}.article-heading h1 a,.references a{color:#111;text-decoration-color:#aaa;text-underline-offset:5px}.article-byline{border-color:var(--orange)}.score-badge{background:var(--orange)}.admin-shell{background:#fff}.admin-shell .secondary{background:#f3f3f3;color:#333}.success{color:#325136;background:#f2f7f2}footer{background:#ffffffdb}.hero.interactive .cube-trigger[hidden],.edit-identity[hidden]{display:none}@media(max-width:850px){.hero{padding-top:80px}.workspace{gap:24px}.identity-open .cubie{transform:translate3d(calc(var(--x)*210px),calc(var(--y)*130px),calc(var(--z)*65px))}}@media(max-width:600px){body{background-size:64px 64px}.site-header{height:68px;padding:0 20px}.hero{padding-top:60px;min-height:calc(100svh - 68px)}.hero h1{font-size:35px;letter-spacing:-1px}.hero-copy>p{font-size:13px}.hero-bottom{font-size:9px;padding-top:28px}.hero-bottom .issue{display:block;font-size:9px}.identity-stage{height:140px}.hero .cube-caption{font-size:11px}.primary-link{font-size:14px}.hero.interactive .identity-open{height:490px}.identity{padding:24px;width:100%}.identity-open .cubie{transform:translate3d(calc(var(--x)*125px),calc(var(--y)*200px),calc(var(--z)*45px)) scale(.55);opacity:.25}.identity-open .cube-trigger{top:180px}.hero:has(.identity-open){padding-top:24px}.workspace{padding-top:28px;gap:28px}.news-card{padding:22px}.research-article{padding:24px 19px}.feed-end{flex-wrap:wrap}.identity-stage{isolation:isolate}.identity{z-index:1}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*::before,*::after{animation:none!important;transition:none!important}}
.hero:not(.interactive) .identity-stage{height:auto;min-height:150px}.hero:not(.interactive) .identity{margin-bottom:20px}.cube-trigger:disabled,.edit-identity:disabled{cursor:wait}.cube-trigger:hover .cube{animation-play-state:paused}
/* Each face gains its colour as the user's different sides come together.
   Apply filters to faces, keeping the cube's 3D parent unflattened. */
.identity-stage .face{filter:grayscale(1);transition:filter .8s ease}
.identity-stage.has-identity .face{filter:grayscale(0)}
.identity-stage.identity-saving .cube{animation-play-state:paused}
@media(prefers-reduced-motion:reduce){.identity-stage .face{transition:none}}

.recommendation-note{margin:14px 0;padding:12px 14px;border-left:2px solid var(--orange);background:#faf8f5;font-size:12px;color:#555}.recommendation-note p{margin:6px 0}.recommendation-note summary{cursor:pointer;font-size:11px}.relation-type{font-weight:600;color:#815235}

/* Three layers of cubies; the form stays above the scattered pieces. */
.identity-stage .identity{z-index:2}
.identity-open .cube-trigger{z-index:0}
.cubie:nth-child(14){visibility:hidden}
/* Deliberate, staggered separation into eight solid blocks. */
.workspace{display:block;max-width:860px;margin-left:auto;margin-right:auto}
.identity-stage{height:205px;transition:height 1.65s cubic-bezier(.22,.65,.28,1)}
.cube-trigger{width:210px;height:195px;position:absolute;left:50%;top:0;transform:translateX(-50%);transition:top 1.65s ease}
.cube{animation:none;transform:rotateX(-30deg) rotateY(-45deg)}
.cubie{left:-28px;top:-28px;width:56px;height:56px;transform:translate3d(calc(var(--x)*29px),calc(var(--y)*29px),calc(var(--z)*29px));transition:transform 1.65s cubic-bezier(.22,.65,.28,1),opacity 1.4s;transition-delay:calc(var(--i)*45ms)}
.front{transform:translateZ(28px);background:#a6de00}.back{transform:rotateY(180deg) translateZ(28px)}.right{transform:rotateY(90deg) translateZ(28px);background:#001531}.left{transform:rotateY(-90deg) translateZ(28px);background:#f4f4f0}.top{transform:rotateX(90deg) translateZ(28px);background:#ac68ef}.bottom{transform:rotateX(-90deg) translateZ(28px)}
.cubie:nth-child(n) .front{background:#f5f5f2}.cubie:nth-child(5) .front{background:#a7df00}.cubie:nth-child(7) .front{background:#ffb900}.cubie:nth-child(n) .right{background:#001438}.cubie:nth-child(6) .right{background:#004517}.cubie:nth-child(7) .right{background:#b0133a}.cubie:nth-child(8) .right{background:#853200}.cubie:nth-child(n) .top{background:#f4f4f2}.cubie:nth-child(5) .top{background:#a7df00}.cubie:nth-child(6) .top{background:#0878ff}.cubie:nth-child(2) .top{background:#ac68ef}
.cube-shadow{width:150px;height:68px;left:92px;top:125px;filter:none;background:#484848;transform:none;clip-path:polygon(0 24%,56% 0,100% 46%,64% 85%,17% 100%);transition:opacity 1.2s}
.hero.interactive .identity{transition:opacity .65s ease,visibility .65s;transition-delay:0s}
.hero.interactive .identity-open .identity{transition-delay:1s}
.hero.interactive .identity-open{height:520px}
.identity-open .cube-trigger{top:150px}
.identity-open .cubie{transform:translate3d(calc(var(--x)*255px),calc(var(--y)*120px),calc(var(--z)*80px)) rotateX(calc(var(--i)*7deg)) rotateY(calc(var(--i)*9deg));opacity:.8}
.hero-copy{transition:opacity .8s,transform 1s,max-height 1.2s;max-height:550px;overflow:hidden}
.hero:has(.identity-open) .hero-copy{display:block;opacity:0;max-height:0;transform:translateY(24px);pointer-events:none}
.hero{transition:padding-top 1.6s}
.identity-stage .face{transition:filter 1.6s ease;transition-delay:calc(var(--i)*45ms)}
@media(max-width:600px){.identity-stage{height:185px}.cube-trigger{transform:translateX(-50%) scale(.85)}.identity-open .cube-trigger{top:170px}.identity-open .cubie{transform:translate3d(calc(var(--x)*155px),calc(var(--y)*200px),calc(var(--z)*65px)) rotateX(calc(var(--i)*7deg)) rotateY(calc(var(--i)*9deg));opacity:.5}.hero.interactive .identity-open{height:520px}}
@media(prefers-reduced-motion:reduce){.identity-stage,.identity-stage *,.hero,.hero-copy{animation:none!important;transition:none!important}}
/* Solid-face rendering: opacity and filters stay off the 3D containers. */
.cube-trigger{perspective:1100px;perspective-origin:50% 42%}
.cube{transform:rotateX(-30deg) rotateY(-45deg);transform-style:preserve-3d}
.cubie,.identity-open .cubie{opacity:1;transform-style:preserve-3d}
.face{border:1px solid #25252580;background-clip:padding-box;box-shadow:inset 0 0 0 .5px #ffffff30;backface-visibility:hidden;-webkit-backface-visibility:hidden}
.face::after{content:"";position:absolute;inset:0;pointer-events:none;background:linear-gradient(135deg,#ffffff12,transparent 60%,#0000000b)}
.cubie:nth-child(n) .front{background:#f0f0ec}
.cubie:nth-child(6) .front{background:#abe000}
.cubie:nth-child(8) .front{background:#ffb600}
.cubie:nth-child(n) .left{background:#001633}
.cubie:nth-child(2) .left{background:#004719}
.cubie:nth-child(3) .left{background:#ae1634}
.cubie:nth-child(4) .left{background:#853609}
.cubie:nth-child(n) .top{background:#f1f1ee}
.cubie:nth-child(1) .top{background:#aa69f0}
.cubie:nth-child(2) .top{background:#1680ff}
.cubie:nth-child(6) .top{background:#b6e900}
.cubie:nth-child(n) .back{background:#a52431}
.cubie:nth-child(n) .right{background:#075ac4}
.cubie:nth-child(n) .bottom{background:#e9950a}
.identity-stage .face{filter:grayscale(1);transition:filter 1.6s ease;transition-delay:calc(var(--i)*45ms)}
.identity-stage.has-identity .face{filter:grayscale(0)}
.cube-shadow{left:83px;top:134px;width:167px;height:66px;background:#474747;clip-path:polygon(0 14%,54% 0,100% 47%,67% 89%,20% 100%);filter:none}
.cube-trigger::after{content:"";position:absolute;left:65px;top:156px;width:85px;height:10px;background:#00000018;filter:blur(3px);transform:rotate(-8deg);transition:opacity 1.2s;pointer-events:none}
.identity-open .cube-trigger::after{opacity:0}
.identity-open .face{box-shadow:inset 0 0 0 .5px #ffffff30}
.hero.interactive .identity{box-shadow:0 14px 44px #00000008}
@media(max-width:600px){.identity-open .cubie{opacity:1}}
@media(prefers-reduced-motion:reduce){.identity-stage .face,.cube-trigger::after{transition:none!important}}
/* One continuous reveal: fixed layout, composited movement and overlapping fades. */
.hero.interactive{min-height:max(790px,calc(100svh - 76px));padding-top:75px;transition:none}
.hero.interactive .identity-stage,.hero.interactive .identity-open{height:205px;transition:none;overflow:visible}
.hero.interactive .cube-trigger,.hero.interactive .identity-open .cube-trigger{top:0;transition:none}
.hero.interactive .identity{top:0;opacity:0;visibility:hidden;pointer-events:none;transform:translateX(-50%) translateY(42px) scale(.96);transition:opacity .65s ease,transform .85s cubic-bezier(.2,.7,.2,1),visibility 0s linear .85s;will-change:transform,opacity}
.hero.interactive .identity-open .identity{opacity:1;visibility:visible;pointer-events:auto;transform:translateX(-50%) translateY(0) scale(1);transition:opacity .75s ease .32s,transform 1s cubic-bezier(.2,.7,.2,1) .24s,visibility 0s;}
.hero.interactive .hero-copy{max-height:none;overflow:visible;opacity:1;transform:translateY(0);transition:opacity .45s ease .3s,transform .7s ease .2s;will-change:transform,opacity}
.hero.interactive:has(.identity-open) .hero-copy{display:block;max-height:none;opacity:0;transform:translateY(28px);pointer-events:none;visibility:hidden;transition:opacity .3s ease,transform .55s ease,visibility 0s linear .55s}
.hero.interactive .cubie{will-change:transform;transition:transform 1.5s cubic-bezier(.2,.65,.25,1);transition-delay:calc(var(--i)*30ms)}
.hero.interactive .identity-open .cubie{transform:translate3d(calc(var(--x)*255px),calc(var(--y)*140px + 65px),calc(var(--z)*80px)) rotateX(calc(var(--i)*7deg)) rotateY(calc(var(--i)*9deg))}
@media(max-width:600px){.hero.interactive{padding-top:45px;min-height:max(760px,calc(100svh - 68px))}.hero.interactive .identity-stage,.hero.interactive .identity-open{height:185px}.hero.interactive .identity-open .cubie{transform:translate3d(calc(var(--x)*155px),calc(var(--y)*200px + 130px),calc(var(--z)*65px)) rotateX(calc(var(--i)*7deg)) rotateY(calc(var(--i)*9deg))}}
@media(prefers-reduced-motion:reduce){.hero.interactive .identity,.hero.interactive .hero-copy,.hero.interactive .cubie{transition:none!important;will-change:auto}}
/* Explicit lengths avoid invalid calc arithmetic collapsing all eight blocks. */
.hero .cube .cubie{visibility:visible;transform:translate3d(var(--cx),var(--cy),var(--cz));transition:transform 1.65s cubic-bezier(.2,.65,.25,1);transition-delay:var(--delay)}
.hero.interactive .identity-open .cube .cubie{transform:rotateY(45deg) rotateX(30deg) translate3d(var(--sx),var(--sy),0px) rotateX(18deg) rotateY(var(--turn))}
.hero .identity-stage .face{transition-delay:var(--delay);border:1px solid #444;box-shadow:inset 0 0 0 1px #ffffff24}
.hero.interactive .identity-open .identity{transition:opacity .8s ease .6s,transform 1s ease .45s,visibility 0s}
@media(max-width:600px){.hero.interactive .identity-open .cube .cubie{transform:rotateY(45deg) rotateX(30deg) translate3d(var(--mx),var(--my),0px) rotateX(18deg) rotateY(var(--turn)) scale(.65)}.hero.interactive:has(.identity-open){min-height:1050px}}
@media(prefers-reduced-motion:reduce){.hero .cube .cubie,.hero.interactive .identity-open .identity{transition:none!important}}

/* CSP-compatible cubie geometry: no inline styles required. */
.hero .cubie:nth-child(1){--x:-1;--y:-1;--z:-1;--i:0;--cx:-30px;--cy:-30px;--cz:-30px;--sx:-285px;--sy:15px;--mx:-128px;--my:470px;--turn:0deg;--delay:0ms}
.hero .cubie:nth-child(2){--x:-1;--y:-1;--z:1;--i:1;--cx:-30px;--cy:-30px;--cz:30px;--sx:-285px;--sy:127px;--mx:-128px;--my:528px;--turn:9deg;--delay:35ms}
.hero .cubie:nth-child(3){--x:-1;--y:1;--z:-1;--i:2;--cx:-30px;--cy:30px;--cz:-30px;--sx:-285px;--sy:239px;--mx:-128px;--my:586px;--turn:18deg;--delay:70ms}
.hero .cubie:nth-child(4){--x:-1;--y:1;--z:1;--i:3;--cx:-30px;--cy:30px;--cz:30px;--sx:-285px;--sy:351px;--mx:-128px;--my:644px;--turn:27deg;--delay:105ms}
.hero .cubie:nth-child(5){--x:1;--y:-1;--z:-1;--i:4;--cx:30px;--cy:-30px;--cz:-30px;--sx:285px;--sy:15px;--mx:128px;--my:470px;--turn:36deg;--delay:140ms}
.hero .cubie:nth-child(6){--x:1;--y:-1;--z:1;--i:5;--cx:30px;--cy:-30px;--cz:30px;--sx:285px;--sy:127px;--mx:128px;--my:528px;--turn:45deg;--delay:175ms}
.hero .cubie:nth-child(7){--x:1;--y:1;--z:-1;--i:6;--cx:30px;--cy:30px;--cz:-30px;--sx:285px;--sy:239px;--mx:128px;--my:586px;--turn:54deg;--delay:210ms}
.hero .cubie:nth-child(8){--x:1;--y:1;--z:1;--i:7;--cx:30px;--cy:30px;--cz:30px;--sx:285px;--sy:351px;--mx:128px;--my:644px;--turn:63deg;--delay:245ms}
/* Prevent the projected 3D scene from extending the page horizontally. */
html,body{overflow-x:clip}
.cube-save-status{position:absolute;top:175px;left:0;right:0;margin:0;text-align:center;font-size:12px;color:#555;background:#fff;z-index:3}
.identity-saving + .hero-copy{opacity:.35!important}
@media(max-width:600px){.cube-save-status{top:165px;font-size:11px}}
/* Editorial typography and staged reveal inspired by the supplied FAQ. */
.hero .hero-copy h1{font-family:"Noto Serif SC","Source Han Serif SC","Songti SC",SimSun,serif;font-size:clamp(38px,5.5vw,76px);font-weight:400;line-height:1.2;letter-spacing:-.04em;margin:24px 0 28px;text-wrap:balance}
.hero .hero-copy>.eyebrow{font-size:11px;letter-spacing:.18em}
.hero .hero-copy>p:not(.cube-caption){font-size:clamp(14px,1.5vw,19px);line-height:1.75;max-width:600px;margin-bottom:32px}
.hero.interactive .identity{transform:translateX(-50%) translateY(25px);clip-path:inset(0 0 100% 0);opacity:0;transition:clip-path .35s cubic-bezier(.16,1,.3,1),transform .35s cubic-bezier(.16,1,.3,1),opacity .2s,visibility 0s linear .35s}
.hero.interactive .identity-open .identity{transform:translateX(-50%) translateY(0);clip-path:inset(0);opacity:1;transition:clip-path .65s cubic-bezier(.16,1,.3,1) .2s,transform .65s cubic-bezier(.16,1,.3,1) .2s,opacity .35s ease .3s,visibility 0s}
.hero .identity>summary{font-family:Georgia,"Times New Roman",serif;font-size:34px;font-weight:400;line-height:1.2;letter-spacing:-.02em}
.hero .identity>p,.hero .identity form{opacity:0;transform:translateY(12px);transition:opacity .2s,transform .3s}
.hero .identity-open .identity>p{opacity:1;transform:translateY(0);transition:opacity .35s ease .35s,transform .45s cubic-bezier(.16,1,.3,1) .3s}
.hero .identity-open .identity form{opacity:1;transform:translateY(0);transition:opacity .35s ease .45s,transform .45s cubic-bezier(.16,1,.3,1) .4s}
.hero .cube .cubie{transition-timing-function:cubic-bezier(.16,1,.3,1)}
@media(max-width:600px){.hero .hero-copy h1{font-size:clamp(31px,8.4vw,42px);line-height:1.25;letter-spacing:-.035em}.hero .identity>summary{font-size:30px}}
@media(prefers-reduced-motion:reduce){.hero .identity,.hero .identity>p,.hero .identity form{transition:none!important}}
.source-dot.nature{background:#a31d32}
.article-tags .interest-tag{font:inherit;font-size:11px;line-height:1.6;padding:3px 9px;border:1px solid #ddd;background:#fff;color:#555;cursor:pointer;transition:background .2s,border-color .2s}
.article-tags .interest-tag:hover{border-color:var(--orange);color:var(--orange);background:#fff6f1}
.article-tags .interest-tag[aria-pressed=true]{background:#f2f5ef;border-color:#d6dfcf;color:#45634d;cursor:default}
.interest-feedback{position:fixed;bottom:22px;left:50%;transform:translateX(-50%);max-width:calc(100vw - 32px);width:max-content;padding:12px 18px;background:#171717;color:white;z-index:20;font-size:13px;box-shadow:0 6px 24px #0002}
.interest-feedback a{color:#ffc8ae;text-decoration:underline}