:root{--blue:#1755aa;--navy:#0b2a59;--ink:#162d51;--muted:#54667e;--line:#d9e4f3;--panel:#fff;--pale:#eff5fd;--bg:#f5f8fd;--shadow:0 3px 12px #1a437c0a}*{box-sizing:border-box}body{margin:0;font:14px/1.5 Inter,Segoe UI,Arial,sans-serif;color:var(--ink);background:var(--bg)}button,input{font:inherit}button{cursor:pointer}a{color:inherit;text-decoration:none}a:hover{color:var(--blue)}.topbar{height:76px;display:flex;align-items:center;padding:0 clamp(20px,3vw,55px);gap:30px;background:#fff;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:5;box-shadow:0 2px 10px #123e6e09}.brand{display:flex;align-items:center;white-space:nowrap;gap:11px;font-size:20px;color:var(--navy)}.brand img{width:43px;height:43px;object-fit:cover;border-radius:100%}.topbar nav{display:flex;align-items:center;gap:5px;flex:1;justify-content:center}.topbar nav a{font-weight:650;font-size:12px;padding:10px 14px;border-radius:6px;white-space:nowrap}.topbar nav a.active,.topbar nav a:hover{color:#fff;background:linear-gradient(145deg,#2778da,#174d9d);box-shadow:0 3px 8px #2466be33}.header-tools{display:flex;align-items:center;gap:18px}.header-tools button{border:0;background:transparent;font-size:30px;color:var(--navy)}.online-dot{height:9px;width:9px;background:#37b56c;border-radius:50%;box-shadow:0 0 0 3px #e5f6e9}#navtoggle{display:none;border:0;background:transparent;font-size:24px;color:var(--navy)}.layout{max-width:1600px;margin:auto;display:grid;grid-template-columns:235px minmax(0,1fr);min-height:calc(100vh - 118px)}.explorer{background:#f0f5fc;border-right:1px solid var(--line);padding:17px 12px 18px;display:flex;flex-direction:column;gap:22px}.panel-heading{display:flex;justify-content:space-between;align-items:center;border:1px solid #d6e2f2;background:linear-gradient(#f7faff,#eaf2fd);font-weight:750;border-radius:7px 7px 0 0;padding:10px 12px;font-size:12px}.panel-heading button{border:0;color:#6882a3;background:transparent;font-size:19px;line-height:1}.explorer-group{border:1px solid #dce5f0;border-top:0;border-radius:0 0 7px 7px;padding:6px 0 10px;background:#f9fbff}.folder-button{display:flex;justify-content:space-between;align-items:center;border:0;background:none;width:100%;padding:10px 12px;font-size:13px;font-weight:650;color:#1c385f;text-align:left}.folder-button:hover,.tree button:hover{color:var(--blue);background:#eaf2ff}.tree{padding-left:18px;display:grid;gap:2px}.tree button{border:0;background:transparent;padding:7px;text-align:left;font-size:12px;color:#37516f}.quick-box{border-radius:7px;overflow:hidden;border:1px solid #d6e2f2;background:#fff}.quick-box .panel-heading{border:0;border-bottom:1px solid #d6e2f2;border-radius:0}.quick-box>button{display:block;width:100%;background:#fff;border:0;border-bottom:1px solid #e9eef7;padding:10px 13px;color:#31537d;text-align:left;font-size:12px}.quick-box>button:hover{background:#ecf4ff;color:var(--blue)}.status-box{margin-top:auto;border:1px solid #d5e1f1;border-radius:7px;padding:12px;background:#f9fbfe;font-size:11px}.status-box>b{display:flex;justify-content:space-between;margin-bottom:9px}.status-online{color:#268f57}.status-box p{display:flex;justify-content:space-between;border-top:1px solid #dce6f2;margin:0;padding:8px 0 0}.status-box p span{font-weight:700}#app{padding:23px 25px 30px;min-width:0}.hero{display:grid;grid-template-columns:1.06fr .94fr;min-height:287px;overflow:hidden;border:1px solid #dce7f6;border-radius:9px;background:linear-gradient(112deg,#fff 0%,#f6faff 56%,#e4f0fd 100%);box-shadow:var(--shadow);margin-bottom:17px}.hero-content{padding:43px 24px 35px 29px;z-index:1}.hero h1{font-size:clamp(28px,3vw,42px);line-height:1.13;letter-spacing:-1.5px;color:var(--navy);margin:0 0 14px}.hero p{font-size:15px;line-height:1.6;color:#394b65;margin:0 0 23px;max-width:450px}.hero-art{position:relative;background:linear-gradient(115deg,#ffffff00,#d9eafb33);min-height:265px;display:grid;place-items:center}.hero-art:before{content:"";position:absolute;inset:0;background-image:linear-gradient(#2878cb12 1px,transparent 1px),linear-gradient(90deg,#2878cb12 1px,transparent 1px);background-size:25px 25px;transform:skewY(-12deg) scale(1.2);mask-image:linear-gradient(to right,transparent,#000)}.hero-art img{width:min(88%,370px);max-height:260px;object-fit:contain;filter:drop-shadow(0 12px 13px #2c527c25);position:relative}.cta-row{display:flex;flex-wrap:wrap;gap:10px}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:10px 17px;border-radius:6px;border:1px solid #a9bfdc;color:#153f84;background:#fff;font-weight:700;font-size:12px;transition:.18s}.btn:hover{background:#edf5ff;transform:translateY(-1px)}.btn.primary{background:linear-gradient(#2c7bdd,#1553ac);color:#fff;border:1px solid #1553ac;box-shadow:0 3px 7px #155bb53a}.btn.primary:hover{background:#13498e;color:#fff}.columns{display:grid;grid-template-columns:1fr 1fr;gap:14px}.section-panel{background:#fff;border:1px solid var(--line);border-radius:8px;padding:15px;min-width:0;box-shadow:var(--shadow)}.section-panel.wide{grid-column:span 2}.section-title{display:flex;align-items:center;gap:8px;margin:0 0 13px;font-size:16px;line-height:1.3;color:#102f63}.section-title .ico{font-size:20px;color:#2162bf}.section-head{display:flex;justify-content:space-between;align-items:center;gap:8px}.section-head a{font-size:11px;font-weight:750;color:var(--blue);white-space:nowrap}.cards3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px}.project-card{border:1px solid #dbe5f2;border-radius:8px;background:linear-gradient(#fff,#fafcff);padding:14px 12px;display:flex;flex-direction:column;min-height:225px;transition:.18s}.project-card:hover{border-color:#9abce9;box-shadow:0 6px 18px #1859a21c;transform:translateY(-2px)}.project-card h3{font-size:14px;margin:0 0 6px;color:#102d5d}.project-card h3 .ico{font-weight:400;margin-right:6px;color:#1664bf}.project-card p{font-size:12px;line-height:1.5;margin:0 0 7px;color:#41536e}.project-card .diagram{margin:auto auto 0;min-height:100px;display:grid;place-items:center;width:100%}.project-card .diagram img{width:100%;height:108px;object-fit:contain}.card-foot{display:flex;justify-content:space-between;align-items:center;font-size:11px;color:#5680b2}.card-foot .arrow{color:#155ac0;font-size:20px}.feature-product{display:flex;gap:16px;align-items:center}.feature-product img{width:42%;max-width:190px;min-width:110px;height:160px;object-fit:contain;background:#f3f8ff;border-radius:7px;padding:4px}.feature-product h3{margin:0 0 5px;font-size:16px;color:#0d2b57}.feature-product p{font-size:12px;color:#53647b;margin:0 0 6px}.pill{background:#e2efff;color:#1d5ab1;border-radius:20px;padding:4px 8px;font-size:10px;font-weight:800;display:inline-block}.price{font-size:15px;color:#1c426f;font-weight:750;margin:9px 0}.knowledge-items{display:grid;gap:8px}.knowledge-items a{font-size:12px;font-weight:600;color:#1e59a3;border-bottom:1px solid #edf1f7;padding:4px 0}.knowledge-items a:before{content:'▤';margin-right:8px;color:#3675c9}.video-thumb{display:grid;place-items:center;flex-shrink:0;height:105px;width:45%;border-radius:7px;background:linear-gradient(130deg,#173761,#528cce);color:#fff;font-size:36px}.video-item{display:flex;gap:13px;align-items:center}.video-item h3{margin:0;font-size:13px}.video-item p{font-size:12px;color:#57667b;margin:6px 0}.checks{font-size:12px;line-height:2.1}.checks span{color:#239254;font-weight:800;margin-right:6px}.page-title h1{font-size:31px;color:var(--navy);margin:5px 0}.page-title p{color:#617089;margin:0 0 20px}.label{font-size:10px;color:#4978b2;font-weight:800;letter-spacing:1.5px}.list-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:14px}.detail-box{background:#fff;border:1px solid var(--line);padding:22px;border-radius:9px;max-width:1000px}.detail-box h2{color:var(--navy)}.detail-box p{line-height:1.8;color:#485b75}.detail-box li{margin-bottom:8px}.back-link{display:inline-block;margin-bottom:15px;color:#1d5db2;font-weight:700}.tag{font-size:11px;padding:4px 8px;background:#edf4ff;border-radius:5px;color:#3c66a1;margin-right:6px}.card-list{display:block;min-height:170px}.card-list .diagram{min-height:70px}.notice{border:1px solid #c8dcf2;border-radius:6px;padding:14px;background:#f2f8ff;font-size:12px;color:#426184}.empty{font-size:12px;color:#687b94}.overlay{position:fixed;inset:0;background:#1024428c;z-index:20;display:flex;justify-content:center;align-items:flex-start;padding:14vh 15px}.overlay[hidden]{display:none}.search-dialog{background:#fff;border-radius:12px;width:min(560px,100%);padding:22px;box-shadow:0 20px 75px #10244250}.search-head{display:flex;justify-content:space-between;font-size:18px}.search-head button{border:0;background:transparent;font-size:23px}.search-dialog input{width:100%;padding:14px;border:1px solid #b4cbe8;border-radius:6px;margin:15px 0}.search-dialog #searchResults a{display:block;border-bottom:1px solid #edf2f9;padding:10px;color:#1756a6}.search-dialog #searchResults small{display:block;color:#8190a6}footer{display:flex;justify-content:space-between;border-top:1px solid var(--line);background:#fff;font-size:10px;letter-spacing:1px;padding:14px 28px;color:#7890ac}@media(max-width:1120px){.topbar{gap:15px;padding:0 15px}.brand{font-size:16px}.topbar nav a{padding:8px}.layout{grid-template-columns:205px minmax(0,1fr)}#app{padding:16px}.hero-content{padding:30px 17px}.cards3{grid-template-columns:repeat(3,minmax(0,1fr))}.project-card{padding:10px}.feature-product{gap:10px}}@media(max-width:800px){.topbar{height:64px;gap:10px}.topbar nav{display:none;position:absolute;top:64px;left:0;right:0;background:#fff;padding:12px;box-shadow:0 9px 20px #0f2e5c2c;flex-wrap:wrap}.topbar nav.open{display:flex}.topbar nav a{font-size:13px}#navtoggle{display:block;margin-left:auto}.header-tools{display:none}.layout{grid-template-columns:1fr}.explorer{display:none}#app{padding:15px}.hero{grid-template-columns:1fr}.hero-art{min-height:180px;grid-row:2}.hero-art img{max-height:170px}.hero-content{padding:28px 22px 10px}.hero h1{font-size:32px}.section-panel.wide{grid-column:span 2}}@media(max-width:520px){.columns{grid-template-columns:1fr}.section-panel.wide{grid-column:span 1}.cards3{grid-template-columns:1fr}.project-card{min-height:150px}.project-card .diagram{min-height:70px}.project-card .diagram img{height:75px}.feature-product img{min-width:100px;height:125px}.brand{font-size:15px}.brand img{width:35px;height:35px}.topbar{padding:0 12px}.hero h1{font-size:28px}footer span{display:none}}
/* V2 detail and interaction polish */
.explorer.collapsed{display:none}.layout:has(.explorer.collapsed){grid-template-columns:1fr}.hero p{max-width:480px}.section-panel>p{font-size:12px;color:#54667e}.project-card .diagram img{max-width:200px}.hero-art img{width:100%;max-width:420px}.search-dialog #searchResults{max-height:320px;overflow-y:auto}.status-box p{padding-bottom:7px}