:root{color-scheme:dark;--bg:#101311;--surface:#181d1a;--raised:#212823;--text:#eef2ed;--muted:#b0bab2;--line:#344037;--accent:#a6e5c3;--dark:#14241b;--radius:8px;font-family:"Segoe UI","Microsoft YaHei",system-ui,-apple-system,sans-serif}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:28px}body{margin:0;background:var(--bg);color:var(--text);font-size:16px;line-height:1.7}a{color:inherit;text-decoration:none}a:hover{color:var(--accent)}button,input{font:inherit}button{cursor:pointer}button:focus-visible,input:focus-visible,a:focus-visible,summary:focus-visible{outline:3px solid var(--accent);outline-offset:5px}img,video{display:block;max-width:100%;height:auto}[hidden]{display:none!important}.wrap{max-width:1400px;margin-inline:auto;padding-inline:48px}
.skip-link{position:fixed;top:-100px;left:20px;z-index:100;background:var(--accent);color:var(--dark);padding:10px 18px;border-radius:4px}.skip-link:focus{top:12px}
.site-header{display:flex;align-items:center;justify-content:space-between;gap:24px;min-height:82px;border-bottom:1px solid var(--line)}.brand{display:flex;align-items:baseline;gap:13px;white-space:nowrap;font-size:19px;letter-spacing:-.04em}.brand strong{font-weight:750}.brand span{color:var(--muted);font-size:14px;letter-spacing:.01em}.site-header nav{display:flex;gap:30px;align-items:center;font-size:14px;color:var(--muted)}
.hero{padding-top:42px;padding-bottom:42px;max-width:1200px}.eyebrow{color:var(--accent);font-size:13px;font-weight:600;margin:0 0 21px;letter-spacing:.06em}.hero h1{font-size:clamp(42px,4.5vw,64px);font-weight:650;line-height:1.2;letter-spacing:-.055em;margin:0 0 25px}.hero-intro{color:var(--muted);max-width:520px;font-size:17px;margin:0 0 24px;line-height:1.8}.text-link{display:inline-flex;align-items:center;gap:20px;color:var(--accent);font-size:14px;font-weight:600}.text-link span{font-size:20px}
.collection{padding-top:28px;border-top:1px solid var(--line)}.collection-heading{display:flex;align-items:baseline;justify-content:space-between;gap:20px;margin-bottom:22px}.collection-heading h2{margin:0;font-size:26px;font-weight:600;letter-spacing:-.04em}.collection-heading p{color:var(--muted);font-size:13px;margin:0}.collection-heading p span{margin:0 11px;color:#657469}
.gallery-controls{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:20px 24px}.search-row{display:flex;align-items:center;gap:20px;margin-bottom:18px}.search-field{display:flex;align-items:center;gap:18px;flex:1;color:var(--muted);font-size:13px}.search-field span{white-space:nowrap;min-width:54px}.search-field input{background:var(--bg);color:var(--text);border:1px solid #526156;border-radius:5px;max-width:450px;width:100%;min-width:0;padding:9px 14px;font-size:14px;outline-offset:2px}.search-field input::placeholder{color:#9fada2}.reset-button{background:transparent;border:0;border-bottom:1px solid #6b8373;padding:3px 0;color:var(--muted);font-size:13px;white-space:nowrap}.reset-button:hover{color:var(--accent)}
.filter-group{display:flex;align-items:flex-start;gap:18px;margin-top:10px}.filter-label{font-size:13px;color:var(--muted);min-width:54px;padding-top:7px}.filter-options{display:flex;flex-wrap:wrap;gap:7px}.filter-button{background:transparent;color:var(--muted);border:1px solid transparent;border-radius:4px;padding:5px 11px;font-size:13px;transition:background .15s,color .15s}.filter-button:hover{background:var(--raised);color:var(--text)}.filter-button[aria-pressed="true"]{background:var(--accent);color:var(--dark);border-color:var(--accent);font-weight:650}
.result-count{color:var(--muted);font-size:12px;margin:17px 0 22px}.work-wall{columns:2;column-gap:28px}.case-card{display:block;width:100%;margin:0 0 38px;break-inside:avoid;vertical-align:top}.card-visual{display:block;background:var(--surface);overflow:hidden;border-radius:var(--radius);border:1px solid var(--line)}.card-visual img{width:100%;transition:transform .35s}.card-visual:hover img{transform:scale(1.025)}
.card-meta{display:flex;align-items:center;flex-wrap:wrap;gap:6px 13px;font-size:12px;margin:18px 0 9px;color:var(--accent)}.card-meta .evidence-label{color:var(--muted);font-size:11px;line-height:1.5;border-left:1px solid #68776d;padding-left:13px}.card-title{margin:0 0 8px;font-size:24px;font-weight:600;letter-spacing:-.03em;line-height:1.4}.card-summary{font-size:14px;color:var(--muted);margin:0 0 13px;max-width:65ch;line-height:1.8}.card-bottom{display:flex;gap:16px;align-items:center;justify-content:space-between}.capability-list{display:flex;gap:6px;flex-wrap:wrap;color:var(--muted);font-size:11px}.capability-list span{background:var(--surface);padding:3px 8px;border-radius:3px}.card-link{color:var(--accent);font-size:12px;white-space:nowrap}.card-link span{margin-left:7px}
.empty-state{padding:55px 20px 70px;text-align:center}.empty-state h3{margin:0 0 8px;font-size:23px}.empty-state p{color:var(--muted);margin:0 0 22px}.primary-button{border:1px solid var(--accent);background:var(--accent);color:var(--dark);border-radius:5px;padding:9px 18px;font-size:14px;font-weight:600}.notice{color:var(--muted);font-size:13px;background:var(--surface);padding:15px;border-radius:5px}
.about{padding:52px 0 57px;margin-top:25px;border-top:1px solid var(--line)}.about h2{font-size:28px;font-weight:600;letter-spacing:-.04em;margin:0 0 18px;line-height:1.5}.about-columns{display:grid;grid-template-columns:1fr 1fr;gap:50px;max-width:1000px;margin-bottom:22px}.about-columns p{color:var(--muted);font-size:14px;margin:0;line-height:1.9}.site-footer{display:flex;justify-content:space-between;align-items:center;gap:20px;border-top:1px solid var(--line);padding-top:25px;padding-bottom:33px;font-size:12px;color:var(--muted)}.site-footer p{margin:0}.site-footer p:first-child{color:var(--text);font-weight:600}
.detail-back{display:inline-flex;align-items:center;gap:11px;color:var(--accent);font-size:13px;margin-top:28px}.detail-heading{padding:34px 0 32px;max-width:950px}.detail-heading h1{font-size:clamp(33px,4vw,55px);font-weight:650;line-height:1.3;letter-spacing:-.045em;margin:0 0 17px}.detail-heading .subtitle{font-size:17px;color:var(--muted);margin:0;max-width:75ch}.detail-meta{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:17px}.detail-meta span{font-size:12px;color:var(--accent);background:var(--surface);padding:4px 10px;border:1px solid var(--line);border-radius:4px}
.detail-cover{margin:0 0 27px;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}.detail-cover img{width:100%;max-height:720px;object-fit:contain}.detail-cover figcaption{padding:12px 18px;font-size:12px;color:var(--muted)}.evidence-note{display:grid;grid-template-columns:170px 1fr;gap:22px;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:20px 24px;margin-bottom:40px}.evidence-note strong{color:var(--accent);font-size:13px}.evidence-note p{margin:0;color:var(--muted);font-size:13px;line-height:1.9}
.detail-layout{display:grid;grid-template-columns:200px minmax(0,1fr);gap:48px;align-items:start}.detail-nav{position:sticky;top:24px;display:flex;flex-direction:column;gap:10px;font-size:13px;color:var(--muted)}.detail-nav a{padding:4px 0}.detail-content{min-width:0;max-width:960px}.detail-section{border-top:1px solid var(--line);padding:29px 0 36px;scroll-margin-top:20px}.detail-section h2{font-size:24px;margin:0 0 18px;font-weight:600;letter-spacing:-.03em}.detail-section h3{font-size:17px;font-weight:600;margin:0 0 9px}.detail-section p{font-size:15px;color:var(--muted);margin:0 0 16px;line-height:1.9}.detail-section p:last-child{margin-bottom:0}
.prompt-label{display:flex;justify-content:space-between;gap:15px;align-items:center;margin-bottom:12px}.prompt-label strong{font-size:13px;color:var(--accent)}.copy-button{color:var(--text);border:1px solid #58685c;background:var(--raised);border-radius:4px;padding:5px 11px;font-size:12px;white-space:nowrap}.prompt{white-space:pre-wrap;overflow-wrap:anywhere;font-family:"Cascadia Code",Consolas,"Microsoft YaHei",monospace;color:var(--text);font-size:13px;line-height:1.9;margin:0 0 14px;background:var(--surface);padding:24px;border:1px solid var(--line);border-radius:var(--radius)}.prompt-note{font-size:13px!important}.copy-status{color:var(--accent);font-size:12px;min-height:1.7em;margin-bottom:4px}
.environment{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px 22px;margin:0 0 24px}.environment div{background:var(--surface);padding:13px 16px;border-radius:5px}.environment dt{color:var(--muted);font-size:11px;margin-bottom:4px}.environment dd{font-size:13px;margin:0;overflow-wrap:anywhere}.tool-list{list-style:none;padding:0;margin:0;display:grid;gap:17px}.tool-list code{color:var(--accent);font-size:12px;overflow-wrap:anywhere}.tool-list p{font-size:13px;margin:4px 0 0}
.process-list{list-style:none;padding:0;margin:0;counter-reset:process;display:grid;gap:30px}.process-step{counter-increment:process}.step-heading{display:flex;gap:15px;align-items:baseline}.step-heading::before{content:counter(process,decimal-leading-zero);font-size:12px;color:var(--accent);font-family:Consolas,monospace}.process-step p{font-size:14px;margin-left:33px}.process-step figure{margin:16px 0 0 33px}.artifact{margin:0 0 23px;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}.artifact img,.artifact video{width:100%}.artifact figcaption{font-size:12px;line-height:1.8;color:var(--muted);padding:12px 16px}.artifact a:focus-visible{display:block;outline-offset:-3px}
.checks{width:100%;border-collapse:collapse;font-size:13px;text-align:left}.checks th{color:var(--muted);font-size:11px;font-weight:500;padding:0 16px 12px 0;border-bottom:1px solid var(--line)}.checks td{padding:16px 16px 16px 0;vertical-align:top;color:var(--muted);border-bottom:1px solid #273229}.checks td:first-child{color:var(--text);width:30%}.checks td:nth-child(2){width:16%;white-space:nowrap}.check-result{display:inline-block;font-size:11px;padding:3px 8px;border-radius:4px;background:var(--raised);color:var(--text)}.check-pass{color:var(--accent)}.check-fail{color:#f2bc8c}
.limitations{margin:0;padding-left:19px;color:var(--muted);font-size:14px;line-height:1.9}.limitations li{margin-bottom:10px}.resource-links{list-style:none;padding:0;margin:0;display:grid;gap:10px}.resource-links a{color:var(--accent);font-size:14px;display:inline-flex;gap:12px;align-items:baseline}.source-line{font-size:12px!important;margin-top:21px!important;overflow-wrap:anywhere}.source-line code{font-size:11px}.credit-block{font-size:13px;line-height:1.9;color:var(--muted)}.credit-block strong{color:var(--text);font-weight:500}.detail-footer{margin-top:10px;padding:24px 0 42px;border-top:1px solid var(--line);display:flex;justify-content:space-between;gap:20px}.detail-footer a{color:var(--accent);font-size:13px}
@media(min-width:768px){.hero h1 br{display:none}}
@media(min-width:1280px){.work-wall.has-many{columns:3}}
@media(max-width:1023px){.wrap{padding-inline:32px}.detail-layout{grid-template-columns:160px minmax(0,1fr);gap:30px}.detail-heading h1{font-size:42px}.card-title{font-size:21px}.work-wall{column-gap:24px}.about-columns{gap:30px}}
@media(max-width:767px){.wrap{padding-inline:20px}.site-header{min-height:77px;gap:10px}.brand{font-size:17px;gap:8px}.brand span{font-size:12px}.site-header nav{gap:16px;font-size:12px}.site-header nav a:nth-child(2){display:none}.hero{padding-top:41px;padding-bottom:42px}.hero h1{font-size:48px;line-height:1.2}.hero-intro{font-size:15px;max-width:430px}.collection{padding-top:22px}.collection-heading h2{font-size:22px}.collection-heading p{font-size:11px}.collection-heading p span{margin:0 5px}.gallery-controls{padding:17px 15px}.search-row{gap:12px}.search-field{display:block}.search-field span{display:block;font-size:11px;margin-bottom:7px}.search-field input{padding:8px 10px;font-size:13px;max-width:none}.reset-button{align-self:flex-end;margin-bottom:10px;font-size:12px}.filter-group{gap:9px}.filter-label{font-size:11px;min-width:35px}.filter-button{font-size:12px;padding:5px 8px}.filter-options{gap:3px}.work-wall{columns:1}.case-card{margin-bottom:33px}.card-title{font-size:24px}.card-summary{font-size:14px}.card-meta{margin-top:15px}.about{padding:35px 0 38px;margin-top:8px}.about h2{font-size:23px}.about-columns{grid-template-columns:1fr;gap:14px}.site-footer{flex-wrap:wrap;gap:12px;padding-top:20px;padding-bottom:24px}.site-footer p:nth-child(2){display:none}.detail-back{margin-top:22px}.detail-heading{padding:26px 0}.detail-heading h1{font-size:34px}.detail-heading .subtitle{font-size:15px}.detail-cover{margin-bottom:20px}.evidence-note{grid-template-columns:1fr;gap:6px;padding:16px 18px;margin-bottom:25px}.detail-layout{display:block}.detail-nav{position:static;flex-direction:row;flex-wrap:wrap;gap:6px 17px;margin-bottom:22px;font-size:12px}.detail-section{padding:23px 0 28px}.detail-section h2{font-size:22px}.detail-section p{font-size:14px}.prompt{padding:17px;font-size:12px}.environment{grid-template-columns:1fr;gap:8px}.environment div{padding:12px 14px}.process-step p{margin-left:0}.process-step figure{margin-left:0}.checks{font-size:12px}.checks th{padding-right:10px}.checks td{padding:12px 10px 12px 0}.checks td:first-child{width:28%}.checks td:nth-child(2){width:17%}.check-result{font-size:10px;padding:2px 5px}.detail-footer{padding-bottom:32px}.detail-footer a{font-size:12px}}
@media(max-width:380px){.wrap{padding-inline:16px}.site-header nav{gap:12px}.brand span{display:none}.hero h1{font-size:42px}.card-title{font-size:22px}.detail-heading h1{font-size:30px}.card-bottom{gap:8px}.capability-list{gap:4px}.capability-list span{padding:3px 5px}}
.checks{table-layout:fixed;overflow-wrap:anywhere}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*::before,*::after{animation:none!important;transition:none!important}.card-visual:hover img{transform:none}}

/* Official project navigation, brand context, and on-demand engineering files. */
.hero{max-width:1200px;padding-top:46px;padding-bottom:34px}
.hero h1{font-size:clamp(42px,4.8vw,64px)}
.hero h1 br{display:none}
.hero .eyebrow{margin-bottom:16px}
.hero-intro{max-width:740px;font-size:16px;margin-bottom:18px}
.project-portal{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;margin-bottom:34px;background:var(--surface)}
.project-portal a{display:block;padding:18px 21px;min-width:0;transition:background .15s}
.project-portal a+a{border-left:1px solid var(--line)}
.project-portal a:hover{background:var(--raised)}
.project-portal strong{display:flex;justify-content:space-between;align-items:center;gap:12px;font-size:14px;font-weight:600}
.project-portal strong span{color:var(--accent)}
.project-portal a>span{display:block;color:var(--muted);font-size:12px;margin-top:6px}
.project-intro{padding:40px 0 38px;border-top:1px solid var(--line)}
.project-intro h2{font-size:28px;font-weight:600;letter-spacing:-.04em;margin:0 0 18px;line-height:1.5}
.project-actions{display:flex;gap:28px;flex-wrap:wrap}
.site-footer nav{display:flex;gap:26px;flex-wrap:wrap}
.related-heading{margin-top:27px!important}
.related-projects{list-style:none;display:flex;flex-wrap:wrap;gap:9px 18px;margin:0;padding:0}
.related-projects a{color:var(--accent);font-size:13px}
.engineering-files{list-style:none;display:grid;gap:10px;padding:0;margin:0}
.engineering-file{display:flex;justify-content:space-between;align-items:center;gap:24px;padding:17px 20px;background:var(--surface);border:1px solid var(--line);border-radius:6px}
.engineering-file div{min-width:0}
.engineering-file strong{display:block;font-weight:500;font-size:14px;overflow-wrap:anywhere}
.engineering-file div span{display:block;font-size:11px;color:var(--muted);margin-top:3px}
.engineering-file a{color:var(--accent);font-size:12px;white-space:nowrap;border:1px solid #61766a;border-radius:4px;padding:6px 10px}
.engineering-file a:hover{background:var(--raised)}
@media(max-width:1023px){.project-portal a{padding:16px}.project-portal strong{font-size:13px}.project-portal a>span{font-size:11px}.site-header nav{gap:23px}}
@media(max-width:767px){.site-header{flex-wrap:wrap;padding-top:13px;padding-bottom:13px;gap:7px}.site-header nav{width:100%;gap:20px;flex-wrap:wrap;font-size:12px}.site-header nav a:nth-child(2){display:inline}.hero{padding-top:34px;padding-bottom:29px}.hero h1{font-size:clamp(34px,9.5vw,48px)}.hero h1 br{display:block}.hero-intro{font-size:14px;line-height:1.9}.project-portal{grid-template-columns:repeat(2,minmax(0,1fr));margin-bottom:26px}.project-portal a{padding:14px}.project-portal a:nth-child(3){border-left:0}.project-portal a:nth-child(n+3){border-top:1px solid var(--line)}.project-portal strong{font-size:12px;gap:5px}.project-portal a>span{font-size:10px}.project-intro{padding:31px 0 28px}.project-intro h2{font-size:23px}.project-actions{gap:10px 23px}.site-footer nav{gap:10px 17px;font-size:11px}.engineering-file{gap:14px;padding:14px}.engineering-file strong{font-size:13px}.engineering-file a{font-size:11px;padding:5px 8px}}
@media(max-width:380px){.hero h1{font-size:34px}.site-header nav{gap:16px}.project-portal a{padding:12px}.project-portal strong{font-size:11px}.engineering-file{align-items:flex-start;flex-direction:column;gap:11px}}