:root{--bg:#f1f2ed;--surface:#e5e7df;--text:#171915;--muted:#5d6359;--line:#c8ccc1;--accent:#1d6d4b;--accent-ink:#f4fff8;--radius:14px;--max:1240px;--shadow:0 22px 70px rgba(32,45,35,.12)}
@media(prefers-color-scheme:dark){:root{--bg:#111410;--surface:#1b201a;--text:#edf2e9;--muted:#a9b2a5;--line:#353d33;--accent:#68c79a;--accent-ink:#0b2418;--shadow:0 22px 70px rgba(0,0,0,.28)}}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--text);font-family:"Microsoft YaHei UI","PingFang SC","Noto Sans SC",Arial,sans-serif;line-height:1.65}a{color:inherit;text-decoration:none}button{font:inherit;color:inherit}h1,h2,h3,h4,p{margin-top:0}h1,h2,h3{letter-spacing:-.035em;line-height:1.12}h1{font-size:clamp(3rem,7vw,6.8rem);max-width:10ch;margin-bottom:28px}h2{font-size:clamp(2.25rem,4.6vw,4.8rem);max-width:13ch}h3{font-size:clamp(1.55rem,2.5vw,2.5rem)}.skip-link{position:fixed;left:16px;top:-80px;background:var(--accent);color:var(--accent-ink);padding:12px 18px;z-index:20}.skip-link:focus{top:16px}.site-header{height:76px;max-width:var(--max);margin:auto;padding:0 28px;display:flex;align-items:center;justify-content:space-between;position:relative;z-index:10}.brand{font-weight:800;letter-spacing:-.03em}.brand span{color:var(--accent);font-weight:500;margin-left:8px}.site-header nav{display:flex;align-items:center;gap:30px;font-size:14px}.site-header nav a:not(.nav-cta):hover{color:var(--accent)}.nav-cta{border:1px solid var(--line);padding:9px 16px;border-radius:999px}.menu-button,.mobile-nav{display:none}.hero{max-width:var(--max);min-height:calc(100dvh - 76px);margin:auto;padding:7vh 28px 10vh;display:grid;grid-template-columns:minmax(0,1.45fr) minmax(300px,.55fr);gap:8vw;align-items:center}.eyebrow{color:var(--accent);font-size:13px;font-weight:800;letter-spacing:.1em;text-transform:uppercase;margin-bottom:20px}.hero-text{max-width:560px;color:var(--muted);font-size:clamp(1.05rem,1.5vw,1.35rem)}.hero-actions{display:flex;gap:12px;margin-top:38px}.button{display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:0 22px;border-radius:999px;border:1px solid var(--line);font-weight:700;white-space:nowrap;transition:transform .25s ease,background .25s ease}.button:hover{transform:translateY(-2px)}.button:active{transform:scale(.98)}.button.primary{background:var(--accent);border-color:var(--accent);color:var(--accent-ink)}.button.secondary:hover{background:var(--surface)}.hero-proof{border-top:1px solid var(--line);padding-top:22px}.proof-main{display:flex;flex-direction:column;padding-bottom:44px}.proof-main strong{font-size:clamp(4rem,8vw,7rem);line-height:1;color:var(--accent);letter-spacing:-.07em}.proof-main span{color:var(--muted)}.hero-proof dl{margin:0}.hero-proof dl div{display:flex;justify-content:space-between;gap:20px;padding:15px 0;border-bottom:1px solid var(--line)}.hero-proof dt{font-weight:800}.hero-proof dd{margin:0;color:var(--muted)}section{max-width:var(--max);margin:auto;padding:110px 28px}.section-heading{margin-bottom:56px}.capability-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:14px}.capability{min-height:260px;padding:30px;border:1px solid var(--line);border-radius:var(--radius);display:flex;flex-direction:column;justify-content:flex-end}.capability span{color:var(--accent);font-size:13px;font-weight:800;margin-bottom:auto}.capability h3{margin-bottom:8px}.capability p{color:var(--muted);max-width:52ch;margin-bottom:0}.capability.featured{background:var(--accent);color:var(--accent-ink);border-color:var(--accent);transform:translateY(40px)}.capability.featured span,.capability.featured p{color:var(--accent-ink)}.capability.wide{grid-column:1/-1;min-height:200px;margin-top:40px}.case-study{max-width:none;background:var(--surface);padding-left:max(28px,calc((100vw - var(--max))/2 + 28px));padding-right:max(28px,calc((100vw - var(--max))/2 + 28px))}.case-intro{display:grid;grid-template-columns:1.25fr .75fr;gap:6vw;align-items:end}.case-intro .eyebrow,.case-intro h2{grid-column:1}.case-intro>p:not(.eyebrow){grid-column:2;grid-row:1/3;color:var(--muted);align-self:end}.case-meta{grid-column:1/-1;display:flex;flex-wrap:wrap;gap:22px;color:var(--muted);font-size:14px;padding-top:26px;border-top:1px solid var(--line)}.media-placeholder{margin:70px 0 110px}.media-placeholder>div{aspect-ratio:16/8.5;background:var(--bg);border:1px dashed var(--line);border-radius:var(--radius);display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;padding:30px}.media-placeholder strong{font-size:clamp(1.3rem,2.4vw,2.2rem)}.media-placeholder span,.media-placeholder figcaption{color:var(--muted);font-size:13px}.media-placeholder figcaption{margin-top:10px}.story-block{padding:90px 0;border-top:1px solid var(--line)}.discovery{display:grid;grid-template-columns:.72fr 1.28fr;gap:8vw}.process-list{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:1fr 1fr;gap:40px}.process-list li{display:flex;flex-direction:column}.process-list strong{font-size:1.15rem;margin-bottom:8px}.process-list span{color:var(--muted)}.roadmap-grid{display:grid;grid-template-columns:1fr 1.2fr .8fr;gap:14px;margin-top:44px}.roadmap-grid article{background:var(--bg);border-radius:var(--radius);padding:28px;min-height:230px}.roadmap-grid h4{font-size:1.15rem}.roadmap-grid p{color:var(--muted);margin:0}.decision-note{margin:28px 0 0;color:var(--muted);max-width:76ch}.decision-section{padding:100px 0}.decision{display:grid;grid-template-columns:90px 1fr;gap:24px;padding:44px 0;border-bottom:1px solid var(--line)}.decision-index{font-size:3rem;color:var(--accent);font-weight:800}.decision h4{font-size:clamp(1.35rem,2vw,2rem);margin-bottom:14px}.decision p{color:var(--muted);max-width:78ch}.decision .outcome{color:var(--text);font-weight:700}.flow-section{padding:100px 0}.flow{display:flex;align-items:center;gap:10px;overflow-x:auto;padding:25px 0 35px}.flow span{background:var(--bg);padding:17px 20px;border-radius:var(--radius);white-space:nowrap;font-weight:700}.flow i{font-style:normal;color:var(--accent);font-size:1.5rem}.flow-notes{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;color:var(--muted)}.results{padding:70px;background:var(--accent);color:var(--accent-ink);border-radius:var(--radius);display:grid;grid-template-columns:.8fr 1.2fr;gap:70px}.results .eyebrow{color:var(--accent-ink)}.results ul{list-style:none;padding:0;margin:0}.results li{display:flex;justify-content:space-between;gap:24px;padding:18px 0;border-bottom:1px solid color-mix(in srgb,var(--accent-ink) 28%,transparent)}.results li span{max-width:240px}.other-projects{padding-top:130px}.project-row{display:grid;grid-template-columns:70px 1fr auto;gap:30px;align-items:start;padding:45px 0;border-bottom:1px solid var(--line)}.project-no{font-weight:800;color:var(--accent)}.project-copy h3{margin-bottom:12px}.project-copy p{color:var(--muted);max-width:70ch}.tags{display:flex;gap:9px;flex-wrap:wrap}.tags span{border:1px solid var(--line);padding:6px 11px;border-radius:999px;font-size:12px}.text-button{background:none;border:0;border-bottom:1px solid var(--text);padding:4px 0;cursor:pointer;white-space:nowrap}.text-button:hover{color:var(--accent);border-color:var(--accent)}.about{display:grid;grid-template-columns:1fr 1fr;gap:7vw}.about-copy{font-size:1.1rem;color:var(--muted)}.experience{grid-column:1/-1;margin-top:40px}.experience article{display:grid;grid-template-columns:220px 1fr;padding:28px 0;border-bottom:1px solid var(--line)}.experience time{color:var(--accent);font-weight:700}.experience h3{font-size:1.35rem;margin-bottom:4px}.experience p{color:var(--muted);margin:0}.contact{display:grid;grid-template-columns:1.2fr .8fr;gap:8vw;align-items:end;background:var(--surface);max-width:none;padding-left:max(28px,calc((100vw - var(--max))/2 + 28px));padding-right:max(28px,calc((100vw - var(--max))/2 + 28px))}.contact>div>p:not(.eyebrow){color:var(--muted)}.contact-actions{display:flex;flex-wrap:wrap;gap:12px}.contact-actions p{width:100%;font-size:14px;color:var(--muted);margin-top:20px}footer{max-width:var(--max);margin:auto;padding:30px 28px;display:flex;justify-content:space-between;color:var(--muted);font-size:13px}dialog{max-width:720px;width:calc(100% - 32px);border:1px solid var(--line);border-radius:var(--radius);padding:42px;background:var(--bg);color:var(--text);box-shadow:var(--shadow)}dialog::backdrop{background:rgba(10,14,11,.66);backdrop-filter:blur(5px)}.dialog-close{float:right;border:1px solid var(--line);background:transparent;border-radius:999px;padding:7px 12px;cursor:pointer}.dialog-placeholder{margin-top:30px;border:1px dashed var(--line);border-radius:var(--radius);padding:60px 20px;text-align:center;color:var(--muted)}.reveal{opacity:0;transform:translateY(22px);transition:opacity .7s cubic-bezier(.16,1,.3,1),transform .7s cubic-bezier(.16,1,.3,1)}.reveal.visible{opacity:1;transform:none}:focus-visible{outline:3px solid color-mix(in srgb,var(--accent) 65%,transparent);outline-offset:4px}
@media(max-width:800px){.site-header{height:68px;padding:0 18px}.site-header nav{display:none}.menu-button{display:block;background:transparent;border:1px solid var(--line);border-radius:999px;padding:7px 13px}.mobile-nav{position:absolute;left:12px;right:12px;top:68px;background:var(--bg);border:1px solid var(--line);border-radius:var(--radius);padding:10px;z-index:12;box-shadow:var(--shadow)}.mobile-nav:not([hidden]){display:grid}.mobile-nav a{padding:12px}.hero{min-height:auto;padding:70px 18px 90px;grid-template-columns:1fr;gap:70px}h1{font-size:clamp(2.8rem,14vw,4.7rem)}section{padding:80px 18px}.capability-grid,.case-intro,.discovery,.roadmap-grid,.results,.about,.contact{grid-template-columns:1fr}.capability.featured{transform:none}.capability.wide{grid-column:auto;margin-top:0}.case-study,.contact{padding-left:18px;padding-right:18px}.case-intro .eyebrow,.case-intro h2,.case-intro>p:not(.eyebrow),.case-meta{grid-column:1;grid-row:auto}.media-placeholder{margin:50px 0 80px}.story-block{padding:70px 0}.process-list{grid-template-columns:1fr}.flow-notes{grid-template-columns:1fr}.results{padding:34px;gap:30px}.results li{flex-direction:column;gap:3px}.project-row{grid-template-columns:44px 1fr}.project-row .text-button{grid-column:2;justify-self:start}.experience article{grid-template-columns:1fr;gap:8px}.contact{gap:40px}.hero-actions{flex-wrap:wrap}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.reveal{opacity:1;transform:none;transition:none}.button{transition:none}}

/* Compact feature switcher: five product flows share one viewport area. */
.feature-showcase{margin:70px 0 110px;background:var(--bg);border-radius:var(--radius);padding:34px}.feature-showcase-head{display:grid;grid-template-columns:1fr .7fr;gap:50px;align-items:end}.feature-showcase-head h3{margin-bottom:0}.feature-showcase-head>p{color:var(--muted);margin:0}.feature-tabs{display:flex;gap:7px;overflow-x:auto;padding:34px 0 18px}.feature-tabs button{border:1px solid var(--line);background:transparent;border-radius:999px;padding:9px 15px;white-space:nowrap;cursor:pointer}.feature-tabs button[aria-selected="true"]{background:var(--accent);border-color:var(--accent);color:var(--accent-ink)}.feature-panel{display:grid;grid-template-columns:1fr 1.08fr;gap:38px;min-height:430px;padding-top:22px}.feature-detail{display:flex;flex-direction:column}.feature-detail h4{font-size:clamp(1.35rem,2.1vw,2rem);line-height:1.25;margin-bottom:12px}.feature-detail>p:not(.feature-label):not(.feature-key){color:var(--muted)}.feature-label{color:var(--accent);font-size:12px;font-weight:800;letter-spacing:.08em;margin:20px 0 8px}.mini-flow{display:flex;align-items:center;gap:7px;flex-wrap:wrap}.mini-flow span{font-size:13px;font-weight:700;padding:7px 10px;background:var(--surface);border-radius:8px}.mini-flow i{font-style:normal;color:var(--accent)}.feature-key{margin-top:auto;padding-top:22px;color:var(--muted)}.feature-key strong{color:var(--text)}.asset-slot{margin:0;display:flex;flex-direction:column}.asset-slot>div{flex:1;min-height:320px;border:1px dashed var(--line);border-radius:var(--radius);display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;padding:24px;background:var(--surface)}.asset-slot strong{font-size:1.3rem}.asset-slot span,.asset-slot figcaption,.asset-slot code{color:var(--muted);font-size:12px}.asset-slot code{margin-top:14px;padding:5px 8px;border:1px solid var(--line);border-radius:6px}.asset-slot figcaption{margin-top:8px}
@media(max-width:800px){.feature-showcase{margin:50px 0 80px;padding:22px}.feature-showcase-head,.feature-panel{grid-template-columns:1fr}.feature-showcase-head{gap:15px}.feature-panel{gap:28px;min-height:0}.feature-key{margin-top:20px}.asset-slot>div{min-height:260px}}
.feature-panel[hidden]{display:none}
.project-row{grid-template-columns:70px 1fr}
@media(max-width:800px){.project-row{grid-template-columns:44px 1fr}}
.ppt-gallery .gallery-stage{padding:10px;overflow:hidden;cursor:zoom-in;background:#dfe3e7}.gallery-image{display:block;width:100%;height:100%;max-height:340px;object-fit:contain;border-radius:9px}.gallery-controls{display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:12px;padding-top:10px}.gallery-controls button{border:1px solid var(--line);background:transparent;border-radius:999px;padding:7px 13px;cursor:pointer}.gallery-controls button:first-child{justify-self:start}.gallery-controls button:last-child{justify-self:end}.gallery-controls button:hover{background:var(--surface)}.gallery-count{font-size:13px;font-weight:800;color:var(--muted)}.image-lightbox{max-width:min(94vw,1500px);width:auto;padding:16px}.image-lightbox img{display:block;max-width:calc(94vw - 32px);max-height:82vh;object-fit:contain;border-radius:10px}.image-lightbox p{margin:10px 50px 0 0;color:var(--muted);font-size:13px}.lightbox-close{position:absolute;right:16px;top:16px;border:1px solid var(--line);background:var(--bg);border-radius:999px;padding:8px 13px;cursor:pointer;box-shadow:var(--shadow)}
@media(max-width:800px){.gallery-image{max-height:260px}.image-lightbox{padding:10px}.image-lightbox img{max-width:calc(100vw - 52px);max-height:78vh}}
.ppt-gallery .gallery-stage{position:relative;display:block}.ppt-gallery .gallery-image{width:100%;height:100%;min-height:320px}.ppt-gallery .gallery-prev,.ppt-gallery .gallery-next{position:absolute;top:50%;transform:translateY(-50%);width:42px;height:42px;padding:0;border:1px solid rgba(255,255,255,.72);border-radius:999px;background:rgba(17,25,20,.76);color:#f5f7f4;font-size:30px;line-height:1;cursor:pointer;box-shadow:0 8px 24px rgba(0,0,0,.2)}.ppt-gallery .gallery-prev{left:18px}.ppt-gallery .gallery-next{right:18px}.ppt-gallery .gallery-prev:hover,.ppt-gallery .gallery-next:hover{background:var(--accent);color:var(--accent-ink)}.ppt-gallery .gallery-count{position:absolute;left:50%;bottom:18px;transform:translateX(-50%);padding:5px 10px;border-radius:999px;background:rgba(17,25,20,.78);color:#f5f7f4;font-size:12px}.ppt-gallery figcaption{line-height:1.7;margin-top:12px}
@media(max-width:800px){.ppt-gallery .gallery-image{min-height:240px}.ppt-gallery .gallery-prev,.ppt-gallery .gallery-next{width:36px;height:36px;font-size:26px}.ppt-gallery .gallery-prev{left:9px}.ppt-gallery .gallery-next{right:9px}}
.ppt-gallery .gallery-prev,.ppt-gallery .gallery-next{border-color:rgba(255,255,255,.5);background:rgba(17,25,20,.48);color:rgba(255,255,255,.84);box-shadow:0 8px 24px rgba(0,0,0,.14);backdrop-filter:blur(6px);opacity:.7;transition:opacity .2s ease,background .2s ease}.ppt-gallery .gallery-prev:hover,.ppt-gallery .gallery-next:hover{background:rgba(17,25,20,.82);color:#fff;opacity:1}
.ppt-gallery .gallery-image[hidden]{display:none}
.project-row.has-action{grid-template-columns:70px 1fr auto}.case-dialog{max-width:900px}.case-dialog h2{max-width:none;font-size:clamp(2rem,4vw,3.5rem)}.case-dialog>p:not(.eyebrow){color:var(--muted);max-width:70ch}.case-material-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:28px}.case-material-grid article{padding:20px;border:1px solid var(--line);border-radius:var(--radius)}.case-material-grid strong,.case-material-grid span{display:block}.case-material-grid span{margin-top:8px;color:var(--muted);font-size:13px}
@media(max-width:800px){.project-row.has-action{grid-template-columns:44px 1fr}.project-row.has-action .text-button{grid-column:2}.case-material-grid{grid-template-columns:1fr}}
.real-feature-shot>div{padding:10px;overflow:hidden;cursor:zoom-in;background:#dfe3e7}.real-feature-shot img{display:block;width:100%;height:100%;max-height:340px;object-fit:contain;border-radius:9px}.real-feature-shot figcaption{line-height:1.7;margin-top:12px}
.feature-showcase-head{grid-template-columns:1fr}
.case-facts{display:grid;grid-template-columns:1.2fr .7fr 1fr;gap:12px;margin:28px 0}.case-facts div{padding:18px;border:1px solid var(--line);border-radius:var(--radius)}.case-facts strong,.case-facts span{display:block}.case-facts span{margin-top:6px;color:var(--muted);font-size:13px}.case-section{padding:34px 0 0}.case-section h3{font-size:1.45rem;margin-bottom:18px}.case-path{display:flex;align-items:center;gap:8px;flex-wrap:wrap}.case-path span{padding:9px 12px;background:var(--surface);border-radius:9px;font-size:13px;font-weight:700}.case-path i{font-style:normal;color:var(--accent)}.case-note{color:var(--muted);font-size:13px;margin:14px 0 0}.case-carousel-stage{position:relative;min-height:360px;border:1px dashed var(--line);border-radius:var(--radius);background:var(--surface);overflow:hidden}.case-slide{min-height:360px;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;padding:70px}.case-slide[hidden]{display:none}.case-slide strong{font-size:1.5rem}.case-slide span{color:var(--muted);margin-top:8px}.case-carousel-prev,.case-carousel-next{position:absolute;top:50%;transform:translateY(-50%);width:42px;height:42px;border:1px solid rgba(255,255,255,.5);border-radius:999px;background:rgba(17,25,20,.48);color:#fff;font-size:30px;cursor:pointer}.case-carousel-prev{left:16px}.case-carousel-next{right:16px}.case-carousel-count{position:absolute;left:50%;bottom:15px;transform:translateX(-50%);padding:5px 10px;border-radius:999px;background:rgba(17,25,20,.7);color:#fff;font-size:12px}.case-hero-image{margin:30px 0 0}.case-hero-image img{display:block;width:100%;max-height:540px;object-fit:contain;border-radius:var(--radius);cursor:zoom-in;background:var(--surface)}.case-hero-image figcaption{color:var(--muted);font-size:12px;margin-top:8px}.skill-tree{display:grid;grid-template-columns:180px 1fr;gap:10px 18px;padding:22px;border:1px solid var(--line);border-radius:var(--radius)}.skill-tree code{color:var(--accent);font-weight:800}.skill-tree span{color:var(--muted)}.rule-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}.rule-grid article{padding:20px;border:1px solid var(--line);border-radius:var(--radius)}.rule-grid p{color:var(--muted);font-size:13px;margin:8px 0 0}
@media(max-width:800px){.case-facts,.rule-grid{grid-template-columns:1fr}.skill-tree{grid-template-columns:1fr}.case-carousel-stage,.case-slide{min-height:260px}.case-slide{padding:55px}.case-hero-image img{max-height:360px}}
.case-slide{padding:14px 14px 54px}.case-slide img{display:block;width:100%;height:300px;object-fit:contain;border-radius:10px;cursor:zoom-in;background:#e7e9e6}.case-slide strong{position:absolute;left:20px;bottom:17px;font-size:13px}.case-slide.active{position:relative}@media(max-width:800px){.case-slide{padding:10px 10px 48px}.case-slide img{height:215px}.case-slide strong{left:15px;bottom:14px}}
.interactive-demo-section{max-width:none;margin:0;padding:90px 0;border-top:1px solid var(--line)}.interactive-demo-head{display:grid;grid-template-columns:1fr .75fr;gap:60px;align-items:end}.interactive-demo-head h3{margin-bottom:0}.interactive-demo-head>p{color:var(--muted);margin-bottom:0}.interactive-demo-guide{display:flex;align-items:center;gap:8px;flex-wrap:wrap;margin:30px 0 16px}.interactive-demo-guide strong{margin-right:8px}.interactive-demo-guide span{padding:7px 10px;border-radius:8px;background:var(--bg);font-size:12px}.interactive-demo-guide i{font-style:normal;color:var(--accent)}.interactive-demo-frame{width:100%;height:680px;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;background:#f5f5f4;box-shadow:0 20px 55px rgba(38,47,40,.12)}.interactive-demo-frame iframe{display:block;width:1440px;height:820px;border:0;transform-origin:top left}.interactive-demo-note{color:var(--muted);font-size:12px;margin:10px 0 0}@media(max-width:800px){.interactive-demo-section{padding:70px 0}.interactive-demo-head{grid-template-columns:1fr;gap:14px}.interactive-demo-guide strong{width:100%}}