:root{--ink:#24221f;--muted:#77716a;--line:#e8e1d8;--accent:#976b46;--bg:#f8f6f2}*{box-sizing:border-box}body{margin:0;color:var(--ink);background:var(--bg);font:15px/1.65 system-ui,"Microsoft YaHei",sans-serif}a{color:inherit;text-decoration:none}button,input,select,textarea{font:inherit}button,a.button{cursor:pointer}button,.button{border:1px solid var(--line);padding:10px 18px;border-radius:4px;background:white;color:var(--ink)}button.primary,.button{background:var(--ink);color:white;border-color:var(--ink)}button:hover,.button:hover{border-color:var(--accent)}button:disabled{opacity:.5;cursor:wait}input,select,textarea{border:1px solid var(--line);padding:11px;border-radius:4px;background:#fff;max-width:100%;color:var(--ink)}input:focus,select:focus,textarea:focus{outline:2px solid #c3a78c;outline-offset:1px}textarea{min-height:110px;resize:vertical}.notice{background:#171613;color:#e7dfd4;padding:9px 5%;font-size:12px;letter-spacing:.1em}header{padding:24px 5%;background:#fff;border-bottom:1px solid var(--line);display:flex;align-items:center;gap:30px;flex-wrap:wrap}.brand{font:30px Georgia,serif;white-space:nowrap}.brand small{font:11px system-ui;letter-spacing:.2em;color:var(--accent);margin-left:10px}nav{display:flex;align-items:center;gap:24px;flex-wrap:wrap;font-size:14px}.active{color:var(--accent)}main{max-width:1280px;margin:0 auto;padding:44px 32px;min-height:65vh}.eyebrow{font-size:11px;letter-spacing:.2em;color:var(--accent)}h1{font-size:32px;font-weight:500;margin:8px 0 12px}h2{font-size:22px;font-weight:500}h3{font-size:17px;margin:12px 0 8px}.muted{color:var(--muted);font-size:13px}.tabs{display:flex;flex-wrap:wrap;gap:12px;margin:28px 0}.tabs a{padding:10px 24px;border:1px solid var(--line);background:white}.tabs a.active{background:var(--ink);color:#fff;border-color:var(--ink)}.filters{display:flex;gap:10px;flex-wrap:wrap;background:#fff;padding:20px;border:1px solid var(--line);margin:20px 0}.filters input{flex:1;min-width:180px}.filters select{max-width:180px}.results-head,.actions{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;margin:18px 0}.grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:22px}.card{background:#fff;border:1px solid var(--line);border-radius:5px;overflow:hidden}.card-body{padding:18px}.cover{aspect-ratio:4/3;background:#efede8;display:flex;align-items:center;justify-content:center;overflow:hidden}.cover img{width:100%;height:100%;object-fit:contain}.placeholder{color:#a89c8c;text-align:center;font:22px Georgia,serif;letter-spacing:.1em}.placeholder small{display:block;font:11px system-ui;margin-top:10px}.pill{display:inline-block;padding:3px 8px;background:#f4f0e9;color:#85623e;font-size:11px;margin:2px}.empty{padding:55px 24px;border:1px dashed #d7cfc3;text-align:center;background:white;grid-column:1/-1}.empty p{color:var(--muted)}.panel{background:#fff;border:1px solid var(--line);padding:28px;margin-bottom:24px;border-radius:5px}.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px}label{display:flex;flex-direction:column;gap:7px;font-size:13px}.wide{grid-column:1/-1}.detail{display:grid;grid-template-columns:1fr 1.2fr;gap:36px}.detail .cover{border:1px solid var(--line);border-radius:5px}.prose{white-space:pre-wrap;overflow-wrap:anywhere}.file{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:14px 0;border-bottom:1px solid var(--line);overflow-wrap:anywhere}.error{color:#9e352c;background:#fff0ed;border:1px solid #e7c6c0;padding:12px}.success{padding:12px;color:#426348;background:#edf4ed}.reason{background:#fff3e5;padding:12px;color:#8a5229}.review-row{border-bottom:1px solid var(--line);padding:20px 0}.review-row:first-child{padding-top:0}footer{padding:28px 5%;border-top:1px solid var(--line);font-size:12px;color:var(--muted)}footer a{margin-left:20px}progress{width:100%;margin:14px 0}dl{display:grid;grid-template-columns:100px 1fr;gap:8px;font-size:14px}dt{color:var(--muted)}dd{margin:0;overflow-wrap:anywhere}a:focus-visible,button:focus-visible{outline:2px solid var(--accent);outline-offset:3px}@media(max-width:950px){.grid{grid-template-columns:repeat(3,minmax(0,1fr))}nav{gap:15px}.detail{grid-template-columns:1fr 1fr}}@media(max-width:650px){header{padding:18px 20px;gap:18px}nav{gap:12px;font-size:12px}nav .button{padding:7px 10px}main{padding:28px 18px}.grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.card-body{padding:12px}h1{font-size:26px}.detail,.form-grid{grid-template-columns:1fr}.wide{grid-column:auto}.panel{padding:18px}.filters{padding:12px}.filters select{flex:1;max-width:100%;min-width:125px}.tabs{gap:7px}.tabs a{padding:8px 13px}}

/* Resource center layout: shared alignment and responsive search. */
body{min-height:100vh;display:flex;flex-direction:column}
header{padding:20px max(28px,calc((100% - 1200px)/2));gap:36px;flex-wrap:nowrap}
.notice{padding:8px max(28px,calc((100% - 1200px)/2));font-size:11px}
nav{margin-left:auto;gap:22px}
main{width:100%;max-width:1264px;padding:52px 32px 64px;flex:1;min-width:0}
main>h1{font-size:36px;line-height:1.35;letter-spacing:-.035em;margin:12px 0 16px;font-weight:600}
main>p.muted{font-size:14px;line-height:1.8;max-width:720px}
.eyebrow{font-weight:600;letter-spacing:.18em}
.tabs{gap:6px;margin:32px 0 0;border-bottom:1px solid var(--line);padding-bottom:12px}
.tabs a{border:0;background:transparent;border-radius:7px;padding:10px 22px;color:var(--muted);font-weight:500;transition:background .18s,color .18s}
.tabs a:hover{background:#eee9e1;color:var(--ink)}
.tabs a.active{background:var(--ink);color:#fff}
.filters{display:grid;grid-template-columns:repeat(5,minmax(0,1fr)) 100px;gap:12px;padding:24px;margin:24px 0 20px;border-radius:12px;box-shadow:0 4px 20px #24221f04}
.filters input:not([type=hidden]){grid-column:1/-2;min-width:0;padding:14px 16px;background:#faf9f6;font-size:15px}
.filters select{width:100%;max-width:none;min-width:0;font-size:13px;padding:10px 12px;grid-row:2}
.filters button{grid-column:6;grid-row:1;padding:12px 22px;border-radius:6px}
.filters input,.filters select{border-radius:6px}
.results-head{margin:22px 0 18px;font-size:13px}
.results-head>a{color:var(--accent);font-weight:500}
.empty{padding:46px 24px 48px;border:1px solid var(--line);border-radius:12px;background:linear-gradient(145deg,#fff,#fbfaf7)}
.empty::before{content:'↥';display:flex;align-items:center;justify-content:center;width:54px;height:54px;margin:0 auto 16px;background:#f1ece4;border:1px solid #e8ded0;border-radius:15px;color:var(--accent);font-size:28px}
.empty h2{font-size:21px;margin:0 0 10px;font-weight:600}
.empty p{font-size:14px;margin:0 0 24px}
.empty .button{display:inline-block;padding:10px 24px;border-radius:6px;font-size:14px}
.card{border-radius:10px;transition:box-shadow .18s,transform .18s}.card:hover{box-shadow:0 8px 24px #24221f0c;transform:translateY(-2px)}
footer{padding:24px max(28px,calc((100% - 1200px)/2));line-height:2}
@media(max-width:1100px){header{flex-wrap:wrap;gap:18px}nav{margin-left:0}.filters{grid-template-columns:repeat(3,minmax(0,1fr))}.filters input:not([type=hidden]){grid-column:1/3}.filters button{grid-column:3}.filters select{grid-row:auto}.brand{font-size:27px}}
@media(max-width:650px){.notice{padding:7px 20px;font-size:10px}header{padding:18px 20px;gap:16px}.brand{font-size:26px}nav{gap:14px;width:100%;font-size:12px}main{padding:32px 20px 40px}main>h1{font-size:27px;max-width:340px;line-height:1.45}main>p.muted{font-size:13px}.tabs{gap:4px;margin-top:24px;flex-wrap:nowrap;overflow-x:auto}.tabs a{padding:9px 12px;white-space:nowrap;font-size:13px}.filters{grid-template-columns:repeat(2,minmax(0,1fr));padding:16px;gap:10px;margin-top:18px}.filters input:not([type=hidden]){grid-column:1/-1;font-size:13px}.filters button{grid-column:1/-1;grid-row:auto;order:2}.filters select{min-width:0;font-size:12px}.empty{padding:32px 18px}.empty h2{font-size:19px}.empty p{font-size:13px}.results-head{font-size:12px}footer{padding:20px;display:flex;flex-wrap:wrap;gap:8px 16px}footer a{margin-left:0}}
@media(prefers-reduced-motion:reduce){.card,.tabs a{transition:none}.card:hover{transform:none}}
/* Consistent shared navigation and extended workflows */
header .main-nav{width:100%;border-top:1px solid var(--line);padding-top:16px;gap:22px}.tool-nav{display:flex;align-items:center;flex-wrap:wrap;gap:16px;margin-left:auto;font-size:12px}.nav-library{position:relative;display:inline-block}.nav-library summary{list-style:none;cursor:pointer;white-space:nowrap}.nav-library summary::-webkit-details-marker{display:none}.nav-library summary::after{content:' ▾';font-size:11px}.nav-library-menu{position:absolute;top:100%;left:0;background:#fff;border:1px solid var(--line);padding:10px;min-width:145px;z-index:100;box-shadow:0 8px 24px #0001}.nav-library-menu a{display:block;padding:9px 12px;white-space:nowrap}.extra-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px}.extra-grid h2{margin:8px 0}.model-preview{display:block;width:100%;max-height:600px;aspect-ratio:4/3;background:#f1efe9;border:1px solid var(--line);cursor:grab}.model-preview:active{cursor:grabbing}#add-project{display:flex;gap:10px;flex-wrap:wrap}#form-message button{margin-top:12px}.tool-nav .button{padding:8px 14px}.panel code{overflow-wrap:anywhere}@media(max-width:650px){header .main-nav{gap:12px 18px;font-size:13px}.tool-nav{margin-left:0;gap:12px}.extra-grid{grid-template-columns:1fr}.filters{gap:8px}}