:root{--bg:#f5f4ef;--paper:#fff;--ink:#233b34;--muted:#718078;--green:#2f6250;--line:#e0e6dd;--soft:#edf3ec;--gold:#be874b;color-scheme:light}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink);font:15px/1.6 -apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif}button,a,summary{-webkit-tap-highlight-color:transparent}button{font:inherit;cursor:pointer;color:var(--ink)}button:focus-visible,a:focus-visible,summary:focus-visible,input:focus-visible{outline:3px solid #598c70;outline-offset:4px}button:disabled{opacity:.4;cursor:default}main{max-width:1250px;margin:auto;padding:38px 32px 30px}header{display:flex;align-items:center;justify-content:space-between;gap:18px;margin-bottom:30px}.eyebrow{font-size:10px;letter-spacing:2px;color:var(--muted);margin:0 0 8px}h1{font-size:30px;line-height:1.3;margin:0;font-weight:600}.subtitle{font-size:14px;color:var(--muted);margin:10px 0 0}.badge{font-size:12px;padding:6px 12px;border:1px solid #cdd9cd;border-radius:30px;white-space:nowrap;color:var(--green)}.layout{display:grid;grid-template-columns:200px minmax(0,1fr);gap:25px;align-items:start}nav{display:flex;flex-direction:column;gap:8px;position:sticky;top:24px}.nav-label{color:var(--muted);font-size:11px;margin:0 0 7px 12px;letter-spacing:1px}.chapter-button{display:flex;gap:12px;align-items:center;text-align:left;background:none;border:0;border-radius:10px;padding:15px 13px;min-height:59px}.chapter-button:hover{background:#e9eee7}.chapter-button[aria-pressed=true]{background:var(--green);color:#fff}.chapter-number{font-size:11px;opacity:.65;min-width:20px}.chapter-name{font-size:14px}.panel{background:var(--paper);border:1px solid var(--line);border-radius:20px;padding:25px;min-width:0}.panel-head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:20px}.chapter-kicker{margin:0 0 4px;font-size:10px;color:var(--muted);letter-spacing:1px}h2{font-size:24px;margin:0;font-weight:600;line-height:1.4}.lead{font-size:14px;color:var(--muted);margin:6px 0 0}.photo-count{font-size:11px;color:var(--muted);white-space:nowrap}.photos{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}.photo-card{margin:0;background:#fafbf8;border:1px solid var(--line);border-radius:12px;overflow:hidden;min-width:0}.image-button{display:block;width:100%;padding:0;border:0;position:relative;background:#e8ece4;overflow:hidden}.image-button img{width:100%;height:auto;aspect-ratio:16/9;object-fit:cover;display:block;transition:transform .2s}.image-button:hover img{transform:scale(1.025)}.enlarge{position:absolute;bottom:9px;right:9px;color:#fff;background:#20352dbb;backdrop-filter:blur(8px);font-size:10px;border-radius:20px;padding:3px 9px}.photo-card figcaption{padding:14px 16px 16px}.photo-title{display:flex;gap:10px;align-items:baseline;margin:0;font-size:15px;font-weight:600}.photo-number{color:var(--muted);font-size:10px;font-weight:400}.photo-copy{margin:7px 0 0;font-size:13px;color:#67776e;line-height:1.7}.jump{margin-top:9px;border:0;border-bottom:1px solid #c1d4c4;padding:0;background:none;color:var(--green);font-size:12px}.section-heading{display:flex;align-items:center;justify-content:space-between;margin:27px 0 12px;gap:10px}h3{font-size:16px;font-weight:600;margin:0}.section-heading>span{font-size:11px;color:var(--muted)}.animation-card{border:1px solid var(--line);border-radius:12px;overflow:hidden;background:#fafbf8}.phases{display:flex;padding:11px;gap:8px;background:white;border-bottom:1px solid var(--line)}.phase{flex:1;border:1px solid transparent;border-radius:7px;background:#f3f5ef;font-size:12px;padding:9px 6px;min-height:39px}.phase[aria-pressed=true]{background:var(--green);color:white}.view-bar{display:flex;justify-content:space-between;align-items:center;padding:13px 18px 0;gap:8px}.view-caption{font-size:11px;color:var(--muted)}.zoom{font-size:11px;background:#fff;border:1px solid var(--line);border-radius:6px;padding:5px 10px;min-height:31px}.zoom[aria-pressed=true]{color:var(--green);border-color:#94b39c;background:#edf3ec}#scene{width:100%;aspect-ratio:720/370}#scene svg{display:block;width:100%;height:100%;font-family:inherit}.legend{display:flex;justify-content:center;gap:18px;flex-wrap:wrap;align-items:center;font-size:10px;color:var(--muted);padding:0 12px 13px}.legend span{display:flex;align-items:center;gap:5px}.legend i{width:7px;height:7px;border-radius:2px;display:inline-block}.fixed{background:#64746b}.moving{background:#be874b}.checked{background:#3c8b68}.schematic{opacity:.8}.current-action{background:#edf3ec;border-top:1px solid #dfe8dd;border-bottom:1px solid #dfe8dd;display:flex;gap:12px;padding:15px 18px;min-height:91px;align-items:flex-start}.phase-number{font-size:11px;color:var(--green);border:1px solid #c4d6c5;width:27px;height:27px;border-radius:50%;display:grid;place-items:center;flex-shrink:0;margin-top:1px}.phase-title{font-size:14px;font-weight:600}.phase-copy{font-size:12px;color:#62756a;margin:3px 0 0}.controls{background:#fff;display:flex;align-items:center;gap:8px;flex-wrap:wrap;padding:14px 17px}.controls button,.panel-footer button{border:1px solid var(--line);background:white;border-radius:7px;padding:8px 12px;font-size:12px;min-height:36px}.controls .primary{background:var(--green);color:#fff;border-color:var(--green);min-width:102px}.clock{margin-left:auto;font-size:11px;font-variant-numeric:tabular-nums;color:var(--muted)}#seek{width:100%;margin:2px 0 0;accent-color:var(--green);height:15px;cursor:pointer}.tip{font-size:11px;color:var(--muted);margin:14px 0 24px}.film{border-top:1px solid var(--line);padding-top:15px}.film summary{cursor:pointer;font-size:12px;color:var(--green)}.film summary span{color:var(--muted);font-size:10px;margin-left:10px}.film video{display:block;width:100%;aspect-ratio:16/9;margin-top:13px;border-radius:9px;background:#15231d}.film-note{font-size:10px;color:var(--muted);display:flex;justify-content:space-between;gap:12px;margin-top:7px}.download{color:var(--green);white-space:nowrap}.panel-footer{display:flex;justify-content:space-between;gap:10px;margin-top:23px}.foot{font-size:10px;color:var(--muted);margin:18px 0 0 225px}.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip-path:inset(50%)}dialog{border:0;padding:0;border-radius:15px;width:min(1050px,94vw);max-height:92vh;background:#fff;box-shadow:0 20px 70px #0004;color:var(--ink)}dialog::backdrop{background:#0b1a16bf;backdrop-filter:blur(4px)}.large-photo{display:block;width:100%;height:auto;max-height:66vh;object-fit:contain;background:#15221c}.close-photo{position:absolute;right:12px;top:12px;padding:7px 12px;background:#162b23ce;color:#fff;border:1px solid #ffffff66;border-radius:7px;font-size:12px}.dialog-copy{padding:19px 24px}.dialog-copy h2{font-size:19px}.dialog-copy p{font-size:14px;margin:7px 0}.dialog-copy>span{font-size:10px;color:var(--muted)}noscript{padding:20px;display:block}
.animation-download{display:flex;gap:12px;align-items:center;justify-content:space-between;margin-top:13px}.motion-download{font-size:12px;color:var(--green);text-decoration:none;border-bottom:1px solid #c4d5c5}.animation-download>span{font-size:10px;color:var(--muted)}
@media(max-width:760px){main{padding:23px 16px}header{margin-bottom:23px}h1{font-size:25px}.eyebrow{font-size:9px;letter-spacing:1px}.subtitle{font-size:12px}.badge{display:none}.layout{grid-template-columns:1fr;gap:15px}nav{position:static;display:grid;grid-template-columns:1fr 1fr;gap:7px}.nav-label{display:none}.chapter-button{padding:11px 12px;min-height:43px;background:#e9eee6;gap:8px}.chapter-button:first-of-type{grid-column:1/-1}.chapter-name{font-size:13px}.chapter-number{min-width:18px}.panel{padding:17px;border-radius:14px}.panel-head{margin-bottom:16px}h2{font-size:21px}.lead{font-size:12px}.photo-count{font-size:10px}.photos{gap:10px}.photo-card figcaption{padding:11px 12px 13px}.photo-title{font-size:13px;gap:7px}.photo-copy{font-size:11px;margin-top:5px}.jump{font-size:11px}.enlarge{font-size:9px;bottom:6px;right:6px;padding:2px 7px}.section-heading{margin-top:22px}h3{font-size:14px}.section-heading>span{font-size:10px}.phases{padding:8px;gap:5px}.phase{font-size:10px;padding:8px 3px;min-height:35px}.view-bar{padding:11px 11px 0}.view-caption{font-size:10px}.zoom{font-size:10px;padding:4px 8px}.legend{gap:12px;font-size:9px;padding-bottom:10px}.schematic{display:none!important}.current-action{padding:12px;min-height:89px;gap:9px}.phase-title{font-size:13px}.phase-copy{font-size:11px}.controls{padding:11px;gap:6px}.controls button{font-size:11px;padding:7px 9px;min-height:35px}.controls .primary{min-width:90px}.clock{font-size:10px}.tip{font-size:10px}.film-note{display:block}.download{display:inline-block;margin-top:5px}.foot{margin:17px 0 0;font-size:10px}}@media(max-width:430px){.photos{grid-template-columns:1fr}.photo-card{display:grid;grid-template-columns:44% 56%;align-items:stretch}.image-button img{height:100%;aspect-ratio:auto;min-height:126px}.photo-card figcaption{padding:12px}.photo-title{font-size:13px}.photo-copy{font-size:11px}.photo-count{display:none}.clock{width:100%;text-align:right}.controls{gap:6px}.current-action{min-height:99px}}@media(prefers-reduced-motion:reduce){*{transition:none!important}}
[hidden]{display:none!important}.project-section{margin:0 0 24px}.project-section-label{display:flex;justify-content:space-between;color:var(--muted);font-size:11px;letter-spacing:.5px;margin-bottom:9px}.projects{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}.project-button{display:flex;align-items:center;gap:12px;padding:13px 16px 13px 13px;border:1px solid #dce3d9;border-radius:13px;background:#fff;text-align:left;min-width:0;transition:border-color .2s,background .2s}.project-button:hover{border-color:#90ae98}.project-button[aria-pressed=true]{border-color:var(--green);background:#edf3ec;box-shadow:inset 0 0 0 1px var(--green)}.project-button img{width:78px;height:64px;border-radius:7px;object-fit:cover;flex-shrink:0}.project-button-copy{display:flex;flex-direction:column;min-width:0;gap:1px}.project-number{font-size:9px;letter-spacing:1.5px;color:var(--muted)}.project-button strong{font-size:15px;font-weight:600}.project-summary{font-size:11px;color:var(--muted)}.project-check{margin-left:auto;opacity:0;color:var(--green);font-size:19px;padding-left:6px}.project-button[aria-pressed=true] .project-check{opacity:1}.project-context{display:flex;align-items:center;justify-content:space-between;gap:12px;margin:0 0 22px;padding-bottom:16px;border-bottom:1px solid var(--line)}.project-title{font-size:20px}.project-description{font-size:11px;color:var(--muted);margin:4px 0 0}.bom-source,.technical-source{font-size:11px;color:var(--green);white-space:nowrap;text-decoration:none;border-bottom:1px solid #c4d5c5}.technical-source{margin-left:10px;font-size:10px}
@media(max-width:980px){.projects{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:760px){.projects{gap:10px}.project-button{gap:10px;padding:10px}.project-button img{width:64px;height:62px}.project-button strong{font-size:15px}.project-number{font-size:8px}.project-summary{font-size:10px}.project-check{display:none}.project-context{margin-bottom:17px;padding-bottom:13px}.project-title{font-size:18px}.project-description{font-size:10px}.bom-source{font-size:10px}}@media(max-width:430px){.project-button{flex-direction:column;align-items:stretch;gap:7px}.project-button img{width:100%;height:66px}.project-button strong{font-size:14px}.project-summary{font-size:9px}.project-section{margin-bottom:18px}.project-context{align-items:flex-start}.project-description{max-width:245px}.bom-source{font-size:9px;margin-top:6px}.technical-source{display:inline-block;margin-left:0;margin-top:5px}}

/* Compact catalogue: every project remains within one searchable entrance. */
.catalog-summary{display:flex;align-items:center;gap:15px;cursor:pointer;list-style:none;padding:13px 16px;border:1px solid var(--line);border-radius:11px;background:white}.catalog-summary::-webkit-details-marker{display:none}.catalog-summary>span:first-child{display:flex;gap:10px;align-items:center}.catalog-summary strong{font-size:14px}.project-count{font-size:11px;color:var(--muted)}.catalog-current{font-size:12px;color:var(--green);margin-left:auto}.catalog-toggle{font-size:10px;color:var(--muted);white-space:nowrap}.catalog-tools{display:flex;align-items:center;gap:12px;margin:14px 0 10px}.catalog-tools input{width:100%;font:inherit;font-size:13px;padding:10px 13px;border:1px solid var(--line);border-radius:8px;background:white;color:var(--ink)}.catalog-results{font-size:11px;color:var(--muted);white-space:nowrap}.categories{display:flex;gap:6px;flex-wrap:wrap;margin-bottom:12px}.category-button{font-size:11px;background:white;border:1px solid var(--line);border-radius:20px;padding:5px 11px}.category-button[aria-pressed=true]{background:var(--green);color:white;border-color:var(--green)}.projects{max-height:342px;overflow:auto;padding:2px 4px 3px 2px;overscroll-behavior:contain;scrollbar-color:#bdcbbd transparent}.catalog-note,.catalog-empty{font-size:11px;color:var(--muted);margin:10px 2px 0}.image-kind{position:absolute;top:9px;left:9px;background:#fffdf0e8;border:1px solid #fff8;border-radius:4px;color:var(--green);font-size:9px;padding:1px 6px}.project-button[hidden]{display:none}.project-summary{line-height:1.5}.project-button strong{line-height:1.45}.project-section[open] .catalog-current{display:none}@media(max-width:760px){.catalog-summary{padding:11px 12px;gap:8px}.catalog-summary strong{font-size:13px}.catalog-current{font-size:11px}.project-count{font-size:10px}.catalog-summary>span:first-child{gap:7px}.projects{max-height:290px}.categories{gap:5px}.category-button{padding:4px 8px;font-size:10px}.catalog-note{font-size:10px}.image-kind{left:6px;top:6px;font-size:8px}}@media(max-width:430px){.catalog-summary{flex-wrap:wrap}.catalog-toggle{margin-left:auto}.project-section:not([open]) .catalog-current{order:3;flex-basis:100%;margin-left:0}.projects{max-height:310px}.project-button img{height:61px}.catalog-tools input{font-size:12px}}

.bom-guide-bar{background:#052e4c;color:#fff;display:flex;align-items:center;justify-content:space-between;gap:20px;padding:12px max(20px,calc((100vw - 1200px)/2));font-size:13px}.bom-guide-brand{display:flex;align-items:center;gap:15px;color:#fff;text-decoration:none}.bom-guide-brand img{width:155px;height:50px;object-fit:contain}.bom-guide-links{display:flex;align-items:center;gap:22px}.bom-guide-links a{color:#dce7ef;text-decoration:none}.bom-guide-links a[aria-current]{color:white;border-bottom:2px solid #d0a56b;padding-bottom:5px}@media(max-width:600px){.bom-guide-bar{padding:10px 16px;gap:12px;flex-wrap:wrap}.bom-guide-brand img{width:126px;height:40px}.bom-guide-links{gap:18px;font-size:12px}}