:root{color-scheme:dark;--bg:#0b1017;--panel:#111b26;--panel2:#16232f;--line:#2a3a49;--ink:#eff6f4;--muted:#adbfca;--mint:#80e0bb;--cyan:#8ddbe5;--amber:#f6c381;--red:#ee938f;--blue:#94b9ff;--radius:18px}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:90px}body{margin:0;background:radial-gradient(ellipse 52rem 35rem at 80% -8%,#1b4a406b,transparent),radial-gradient(ellipse 35rem 30rem at -10% 38%,#233d5570,transparent),var(--bg);color:var(--ink);font:16px/1.65 system-ui,-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",sans-serif}button,input{font:inherit}button{cursor:pointer}button,a,input,summary{touch-action:manipulation}button:focus-visible,a:focus-visible,input:focus-visible,summary:focus-visible{outline:3px solid var(--cyan);outline-offset:4px}a{color:inherit;text-underline-offset:4px}p{margin:0 0 1rem}h1,h2,h3{line-height:1.18;letter-spacing:-.035em;margin:0}h1{font-size:clamp(2.7rem,5.7vw,5.2rem)}h2{font-size:clamp(1.8rem,3.25vw,3rem)}h3{font-size:1.24rem}.shell{width:min(1200px,calc(100% - 48px));margin-inline:auto}.skip{position:absolute;transform:translateY(-200%);background:var(--mint);color:#062019;padding:10px;z-index:20}.skip:focus{transform:none}
.topbar{position:sticky;top:0;z-index:10;border-bottom:1px solid #ffffff18;background:#0b1017e8;backdrop-filter:blur(15px)}.topbar-inner{min-height:70px;display:flex;justify-content:space-between;align-items:center;gap:20px}.brand{display:flex;align-items:center;gap:10px;text-decoration:none;font-weight:800;white-space:nowrap}.brand-mark{display:grid;place-items:center;width:34px;height:34px;border-radius:10px;background:var(--mint);color:#09231b;font-weight:900}.brand-divider,.brand-sub{color:var(--muted);font-weight:500}.topbar nav{display:flex;gap:23px;align-items:center}.topbar nav a{color:#cad6dd;text-decoration:none;font-size:.84rem;white-space:nowrap}.topbar nav a:hover{color:var(--mint)}
.hero{min-height:590px;padding-top:92px;padding-bottom:78px;display:grid;grid-template-columns:minmax(0,1.1fr) minmax(320px,.9fr);gap:64px;align-items:center}.eyebrow,.kicker{font-size:.78rem;font-weight:800;letter-spacing:.12em;text-transform:uppercase;color:var(--mint)}.eyebrow{display:flex;align-items:center;gap:10px;margin-bottom:18px}.eyebrow-dot,.pulse{width:8px;height:8px;border-radius:50%;background:var(--mint);box-shadow:0 0 18px var(--mint)}h1 span{color:var(--mint)}.hero-lead{font-size:clamp(1.1rem,1.65vw,1.32rem);line-height:1.65;color:#d0dedf;max-width:660px;margin:24px 0 30px}.hero-actions{display:flex;gap:12px;flex-wrap:wrap}.button{min-height:47px;border-radius:11px;padding:10px 18px;display:inline-flex;justify-content:center;align-items:center;gap:18px;text-decoration:none;font-weight:750;font-size:.9rem;border:1px solid var(--line);color:var(--ink);background:var(--panel2)}.button.primary{background:var(--mint);border-color:var(--mint);color:#0b261d}.button.secondary,.button.outline{background:#ffffff06}.button:hover{filter:brightness(1.08)}.hero-foot{font-size:.88rem;color:var(--muted);margin:25px 0 0}.hero-foot strong{color:#dbece6}.hero-visual{border:1px solid #5d8d81a1;border-radius:26px;padding:26px;background:linear-gradient(160deg,#17372e,#13212c 52%,#101720);box-shadow:0 35px 70px #0005,0 0 50px #4fd8ad12;transform:rotate(2deg)}.visual-header{display:flex;justify-content:space-between;color:#c8e1d9;font-size:.8rem;font-weight:700}.visual-track{display:flex;align-items:center;gap:7px;margin:47px 0 34px}.track-node{display:grid;place-items:center;border:1px solid #659b8b78;width:69px;height:69px;border-radius:50%;font-size:.78rem;background:#17392f;flex-shrink:0}.track-node.active{background:var(--mint);color:#08261c;border-color:var(--mint);font-weight:800}.track-link{height:2px;background:linear-gradient(90deg,var(--mint),#3b655a);flex:1;min-width:10px}.visual-quote{display:flex;align-items:center;gap:13px;border:1px solid #5b837555;border-radius:16px;padding:15px;background:#ffffff0a}.quote-icon{width:40px;height:40px;border-radius:11px;display:grid;place-items:center;background:#2b5e4a;color:var(--mint);font-weight:900}.visual-quote b,.visual-quote small{display:block}.visual-quote small{color:#b8c9c7;font-size:.75rem}.visual-lines{display:grid;gap:9px;margin:23px 0 24px}.visual-lines i{display:block;height:7px;border-radius:9px;background:#7aa39133}.visual-lines i:nth-child(2){width:75%}.visual-lines i:nth-child(3){width:50%}.visual-bottom{display:flex;align-items:center;gap:9px;color:var(--mint);font-size:.78rem;font-weight:800}
.section{padding-block:72px;border-top:1px solid #ffffff10}.section-head{display:flex;justify-content:space-between;align-items:end;gap:36px;margin-bottom:30px}.section-head>div{max-width:700px}.section-head>p{color:var(--muted);font-size:.93rem;max-width:300px;margin:0}.kicker{margin-bottom:10px}.gate-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}.gate-card{position:relative;min-height:272px;padding:23px;background:linear-gradient(155deg,#182633,#111b25);border:1px solid var(--line);border-radius:var(--radius)}.gate-number{color:#77949c;font-size:.76rem;font-weight:800}.gate-symbol{font-size:2rem;color:var(--mint);margin:8px 0 20px}.gate-card h3{margin-bottom:10px}.gate-card p{color:#bccdd4;font-size:.89rem}.gate-card small{position:absolute;bottom:20px;color:var(--mint);font-size:.76rem;font-weight:750}.ste-card{display:grid;grid-template-columns:repeat(3,1fr);gap:0;margin-top:18px;border:1px solid #46756678;border-radius:var(--radius);background:#12241f}.ste-card>div{padding:19px 22px;border-right:1px solid #46756678}.ste-card>div:last-child{border:0}.ste-card span{display:block;color:var(--mint);font-size:.75rem;font-weight:800;margin-bottom:6px}.ste-card b{font-size:.9rem;font-weight:600;line-height:1.5}
.example-intro{border:1px solid #3c5966;border-radius:14px;background:#15242e;padding:18px 22px;display:flex;align-items:center;gap:18px;margin-bottom:20px}.example-intro p{margin:0}.story-badge,.pill{display:inline-flex;align-items:center;white-space:nowrap;border:1px solid #4f8b7b;border-radius:100px;color:var(--mint);padding:5px 11px;font-size:.75rem;font-weight:800}.example-tabs{display:flex;gap:8px;padding:6px;border:1px solid var(--line);border-radius:14px;background:#101a24;margin-bottom:17px}.example-tabs button{flex:1;border:0;border-radius:9px;background:transparent;color:var(--muted);min-height:47px;font-weight:800}.example-tabs button[aria-selected=true]{background:var(--mint);color:#0b281d}.example-panel{display:grid;grid-template-columns:1fr 1fr;gap:0;border:1px solid var(--line);background:var(--panel);border-radius:22px;overflow:hidden;min-height:410px}.example-panel[hidden]{display:none}.example-art{position:relative;padding:25px;min-height:410px;background:linear-gradient(135deg,#1d3e42,#162735);display:flex;flex-direction:column;justify-content:center;gap:16px}.art-label{position:absolute;top:24px;left:25px;font-size:.77rem;color:#b6d6d4;letter-spacing:.05em}.chat-bubble{border-radius:16px;padding:15px 18px;max-width:84%;font-size:1.05rem;box-shadow:0 12px 25px #0002}.chat-bubble.user{align-self:flex-end;background:#395e5f}.chat-bubble.reply{align-self:flex-start;background:#c1e9d6;color:#123025}.chat-bubble.fail-bubble{align-self:flex-start;background:#f9c4ad;color:#3a1c15}.chat-bubble[hidden]{display:none}.example-explain{padding:36px;display:flex;flex-direction:column;align-items:flex-start}.example-explain h3{font-size:1.55rem;margin:16px 0}.example-explain ul{margin:0 0 22px;padding-left:20px;color:#c2d2d7}.example-explain li{margin:7px 0}.example-verdict{border-top:1px solid var(--line);padding-top:17px;margin-top:auto;width:100%;display:grid;grid-template-columns:48px 1fr;gap:6px 10px;font-size:.85rem}.example-verdict span{color:var(--mint);font-size:.75rem;font-weight:800}.example-verdict b{color:#e5f2ea}.example-verdict p{color:var(--muted);margin:0}.example-action{display:flex;align-items:center;gap:17px;margin-top:17px;flex-wrap:wrap}.example-action span{font-size:.84rem;color:var(--muted)}.example-panel.is-error .example-verdict b{color:var(--red)}.example-panel.is-error .example-art{background:linear-gradient(135deg,#4a282d,#1b2a35)}
.scene-wall{position:relative;width:min(390px,94%);height:225px;align-self:center;border:7px solid #a8cbd1;border-radius:12px;background:linear-gradient(#b9dce1 0 68%,#88aab2 68%);box-shadow:0 17px 30px #0004}.scene-sign{position:absolute;top:15px;left:17px;color:#244253;background:#eff9f7;padding:3px 10px;border-radius:3px;font-size:.7rem;font-weight:900}.scene-window{position:absolute;width:78px;height:72px;border:7px solid #eaf7f7;right:22px;top:24px;background:#7fb7c8}.scene-bed{position:absolute;left:10px;bottom:16px;width:74%;height:48px;border-radius:6px;background:#eff9f7;border-bottom:10px solid #607985}.scene-person{position:absolute;bottom:45px;left:44%;width:34px;height:80px;background:#2d7192;border-radius:18px 18px 8px 8px;transform:rotate(-8deg)}.scene-person i{position:absolute;width:42px;height:42px;border-radius:50%;background:#f2c5a6;top:-34px;left:-4px}.scene-tags{display:flex;justify-content:center;gap:7px;flex-wrap:wrap}.scene-tags span{font-size:.68rem;color:#def6e8;background:#285e56;padding:5px 8px;border-radius:6px}.image-art.bad-scene .scene-wall{background:linear-gradient(#d1a879 0 68%,#7e614c 68%);border-color:#b8885d}.image-art.bad-scene .scene-sign{color:#513925}.image-art.bad-scene .scene-sign:after{content:"客厅";position:absolute;inset:0;background:#eff9f7;display:grid;place-items:center}.image-art.bad-scene .scene-tags span:first-child{background:#744b43}
.frames{display:flex;align-items:center;gap:12px}.frame{position:relative;flex:1;aspect-ratio:3/4;border:4px solid #8dbebc;border-radius:12px;background:linear-gradient(#a9d1d8 0 68%,#769ca0 68%);display:grid;place-items:center;overflow:hidden}.frame:before{content:"";position:absolute;bottom:13px;left:5px;right:5px;height:20px;border-radius:4px;background:#e6f7f4}.frame-person{position:relative;color:#efc5a6;font-size:3rem;line-height:1;z-index:1;transform:translateY(6px)}.frame-person i{position:absolute;left:9px;top:44px;width:31px;height:55px;background:#30789d;border-radius:12px 12px 3px 3px}.frame-person i:after{content:"";position:absolute;left:25px;top:10px;width:9px;height:35px;background:#edbfa1;transform-origin:top;transform:rotate(-5deg);border-radius:9px}.frame-person.hand-mid i:after{transform:rotate(-65deg)}.frame-person.hand-up i:after{transform:rotate(-135deg)}.frame small{position:absolute;bottom:3px;right:6px;z-index:2;color:#183334;font-weight:900;font-size:.65rem}.motion-line{color:#cff1e5;font-size:.8rem;display:flex;justify-content:space-between}.motion-line span{font-size:1.3rem}.video-art.no-motion .hand-mid i:after,.video-art.no-motion .hand-up i:after{transform:rotate(-5deg)}
.metric-lab{display:grid;grid-template-columns:.8fr 1.2fr;gap:17px}.metric-controls,.metric-visual{border:1px solid var(--line);border-radius:var(--radius);padding:25px;background:var(--panel)}.demo-label{color:var(--amber);font-size:.77rem;font-weight:800;margin-bottom:21px}.metric-controls label{display:block;margin-bottom:21px;font-weight:700}.metric-controls output{color:var(--mint);font-variant-numeric:tabular-nums}.metric-controls input{display:block;width:100%;margin-top:12px;accent-color:var(--mint)}.metric-controls p{color:var(--muted);font-size:.84rem;margin:22px 0 0}.metric-visual{display:flex;flex-direction:column;justify-content:center;gap:24px}.metric-row>div:first-child{display:flex;justify-content:space-between;gap:10px;margin-bottom:8px}.metric-row b{font-weight:700;font-size:.9rem}.metric-row strong{font-size:1.25rem;color:var(--mint);font-variant-numeric:tabular-nums}.meter{height:20px;background:#293d48;border-radius:20px;overflow:hidden}.meter span{display:block;height:100%;width:0;background:linear-gradient(90deg,#4f9088,#96d9bf);border-radius:20px;transition:width .25s}.main-row .meter{height:27px}.main-row .meter span{background:linear-gradient(90deg,#63c7a1,#a0f0ca)}.metric-summary{color:var(--mint);font-size:1.23rem;font-weight:800;margin:3px 0 0}.metric-visual small{font-size:.75rem;color:var(--muted)}.metric-defs{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:16px}.metric-defs article{padding:19px;background:#13222c;border:1px solid var(--line);border-radius:14px}.metric-defs b{color:#dbf3e7}.metric-defs p{font-size:.85rem;color:var(--muted);margin:8px 0 0}
.method-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:15px}.method-card{border:1px solid var(--line);border-radius:var(--radius);padding:25px;background:#13222e}.method-card.text{background:linear-gradient(160deg,#17352e,#12222d 63%)}.method-card.image{background:linear-gradient(160deg,#283146,#12222d 63%)}.method-card.video{background:linear-gradient(160deg,#382c3b,#12222d 63%)}.method-top{display:flex;justify-content:space-between;color:var(--mint);font-size:.77rem;font-weight:900;letter-spacing:.08em}.method-card h3{font-size:1.55rem;margin:36px 0 12px}.method-card p{min-height:126px;color:#bdcdd3;font-size:.9rem}.method-line{display:flex;align-items:baseline;justify-content:space-between;gap:12px;padding:11px 0;border-top:1px solid #ffffff20;font-size:.78rem}.method-line b{color:var(--mint);white-space:nowrap}.method-line span{color:#d1dddf;text-align:right}.method-note{border-left:3px solid var(--amber);padding:14px 18px;margin:20px 0 0;background:#f6c38112;color:#e2d2bb;border-radius:0 10px 10px 0;font-size:.9rem}
.workflow{display:grid;grid-template-columns:repeat(5,1fr);gap:10px;list-style:none;margin:0;padding:0}.workflow li{padding:20px;border:1px solid var(--line);border-radius:14px;background:#13222e;min-height:250px}.workflow li>span{display:grid;place-items:center;width:40px;height:40px;border-radius:12px;background:#2d5e51;color:var(--mint);font-weight:900;margin-bottom:23px}.workflow h3{font-size:1rem;margin-bottom:10px}.workflow p{color:var(--muted);font-size:.82rem}.workflow-bottom{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-top:16px}.workflow-example{padding:22px;border:1px solid #44695d;border-radius:14px;background:#152922}.workflow-example b{color:var(--mint)}.workflow-example p{color:#cfdfd7;font-size:.87rem;margin:8px 0 0}
.decision-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:13px}.decision-card{border:1px solid var(--line);border-radius:var(--radius);padding:22px;background:var(--panel);min-height:210px}.decision-light{display:block;width:22px;height:22px;border-radius:50%;margin-bottom:25px;background:var(--red);box-shadow:0 0 26px #ee938f70}.decision-card.wait .decision-light{background:var(--amber);box-shadow:0 0 26px #f6c38170}.decision-card.go .decision-light{background:var(--mint);box-shadow:0 0 26px #80e0bb70}.decision-card h3{margin-bottom:10px}.decision-card p{font-size:.87rem;color:var(--muted)}.decision-ste{margin-top:15px}
.paper-group{margin-top:24px}.paper-group h3{color:#dbece8;font-size:1rem;margin-bottom:12px}.paper-group details{border:1px solid var(--line);border-radius:12px;margin:8px 0;background:#121f2a;overflow:hidden}.paper-group summary{min-height:58px;display:flex;align-items:center;gap:14px;padding:13px 18px;cursor:pointer;font-weight:700;list-style:none}.paper-group summary::-webkit-details-marker{display:none}.paper-group summary:after{content:"＋";order:4;margin-left:auto;color:var(--mint);font-size:1.2rem}.paper-group details[open] summary:after{content:"−"}.paper-org{color:var(--mint);min-width:110px}.paper-kind{font-size:.7rem;color:var(--muted);font-weight:600;margin-left:auto;white-space:nowrap}.paper-body{border-top:1px solid var(--line);padding:19px 21px;color:#ccdadc;font-size:.86rem}.paper-body p{margin-bottom:11px}.paper-body ul{padding-left:20px;margin:0 0 12px}.paper-body li{margin:7px 0}.paper-body a{color:var(--cyan)}.paper-limit{color:var(--amber);margin:0!important}
footer{border-top:1px solid var(--line);background:#0b141a}.footer-inner{display:flex;justify-content:space-between;gap:20px;padding-block:34px;font-size:.85rem;color:var(--muted)}.footer-inner b{color:var(--ink)}.footer-inner p{margin:5px 0 0}.footer-inner a{color:var(--mint)}
@media(max-width:1050px){.topbar nav{gap:12px}.topbar nav a{font-size:.78rem}.hero{gap:30px}.gate-grid{grid-template-columns:repeat(2,1fr)}.gate-card{min-height:225px}.method-grid{gap:9px}.method-card{padding:20px}.workflow{grid-template-columns:repeat(3,1fr)}.workflow li{min-height:205px}}
@media(max-width:760px){.shell{width:calc(100% - 32px)}.topbar-inner{min-height:58px}.topbar nav{overflow:auto;gap:14px;max-width:54vw}.topbar nav a{font-size:.74rem}.brand{font-size:.82rem;gap:5px}.brand-mark{width:28px;height:28px}.brand-sub{display:none}.hero{grid-template-columns:1fr;padding-top:55px;gap:37px;min-height:0}.hero-visual{transform:none;max-width:520px}.section{padding-block:52px}.section-head{display:block;margin-bottom:23px}.section-head>p{max-width:none;margin-top:12px}.ste-card{grid-template-columns:1fr}.ste-card>div{border-right:0;border-bottom:1px solid #46756678}.ste-card>div:last-child{border:0}.example-panel{grid-template-columns:1fr}.example-art{min-height:305px}.example-explain{min-height:330px}.metric-lab{grid-template-columns:1fr}.method-grid{grid-template-columns:1fr}.method-card p{min-height:0}.method-card h3{margin-top:23px}.workflow{grid-template-columns:repeat(2,1fr)}.workflow-bottom{grid-template-columns:1fr}.decision-grid{grid-template-columns:1fr}.decision-card{min-height:150px}.decision-light{margin-bottom:15px}}
@media(max-width:520px){.topbar nav{max-width:58vw}.topbar nav a:nth-child(4){display:none}.hero{padding-top:44px;padding-bottom:45px}.hero-lead{font-size:1.02rem}.hero-actions .button{flex:1}.hero-visual{padding:18px}.visual-track{margin:30px 0 25px}.track-node{width:56px;height:56px;font-size:.66rem}.gate-grid{grid-template-columns:1fr}.gate-card{min-height:205px}.gate-symbol{margin-bottom:8px}.example-intro{display:block}.story-badge{margin-bottom:8px}.example-tabs button{font-size:.76rem;padding:7px}.example-art{padding:17px;min-height:285px}.art-label{top:14px;left:17px}.example-explain{padding:25px}.scene-wall{height:185px}.frames{gap:6px}.metric-defs{grid-template-columns:1fr}.workflow{grid-template-columns:1fr}.workflow li{min-height:0}.paper-group summary{display:block;position:relative;padding-right:45px}.paper-group summary:after{position:absolute;right:18px;top:13px}.paper-org{display:block}.paper-kind{display:block;margin:3px 0 0;white-space:normal}.footer-inner{display:block}.footer-inner a{display:inline-block;margin-top:10px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.meter span{transition:none}}