:root{
  --blue:#143a8b;--blue2:#1d54c7;--orange:#f36c21;--ink:#172033;--muted:#67738b;--line:#dbe2ee;
  --bg:#f4f7fb;--card:#fff;--soft:#edf3ff;--green:#0e8a58;--red:#c13b3b;--shadow:0 16px 40px rgba(24,48,91,.10);
}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:Inter,Segoe UI,Arial,sans-serif;background:var(--bg);color:var(--ink)}button,input,select{font:inherit}
.topbar{position:sticky;top:0;z-index:20;display:flex;align-items:center;justify-content:space-between;gap:20px;padding:14px clamp(16px,4vw,48px);background:rgba(255,255,255,.96);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.brand{display:flex;align-items:center;gap:12px}.brand-mark{background:var(--blue);color:#fff;font-weight:900;font-size:22px;letter-spacing:.5px;padding:11px 13px;border-radius:12px}.brand-title{font-weight:800;font-size:18px}.brand-subtitle{font-size:12px;color:var(--muted);margin-top:2px}.status-pill{display:flex;align-items:center;gap:8px;border:1px solid var(--line);background:#fff;padding:8px 12px;border-radius:999px;font-size:13px;color:var(--muted)}.dot{width:8px;height:8px;background:#28a66d;border-radius:50%}
.tabs{display:flex;gap:8px;padding:12px clamp(16px,4vw,48px);overflow:auto;background:#fff;border-bottom:1px solid var(--line)}.tab,.mini-tab{border:0;background:transparent;padding:10px 14px;border-radius:10px;color:var(--muted);font-weight:700;cursor:pointer;white-space:nowrap}.tab.active,.mini-tab.active{background:var(--soft);color:var(--blue)}
main{max-width:1440px;margin:0 auto;padding:28px clamp(16px,4vw,48px) 60px}.tab-panel{display:none}.tab-panel.active{display:block}.hero{display:grid;grid-template-columns:1.3fr .9fr;gap:28px;align-items:center;margin-bottom:24px}.hero h1,.section-intro h1{font-size:clamp(30px,4vw,48px);line-height:1.05;margin:6px 0 12px}.hero p,.section-intro p{color:var(--muted);font-size:16px;line-height:1.6;max-width:840px}.eyebrow{text-transform:uppercase;letter-spacing:.14em;font-size:11px;font-weight:900;color:var(--orange)}.workflow{display:flex;align-items:center;justify-content:center;gap:8px;background:#fff;border:1px solid var(--line);border-radius:18px;padding:18px;box-shadow:var(--shadow);font-size:13px;color:var(--muted)}.workflow div{display:flex;align-items:center;gap:7px}.workflow span{display:grid;place-items:center;width:25px;height:25px;border-radius:50%;background:var(--blue);color:#fff;font-weight:800}.workflow b{color:#a5afc1}
.panel{background:var(--card);border:1px solid var(--line);border-radius:20px;padding:22px;box-shadow:var(--shadow)}.panel-title-row,.results-head{display:flex;align-items:flex-start;justify-content:space-between;gap:16px}.panel h2,.results-head h2{margin:0;font-size:23px}.muted{color:var(--muted);font-size:13px;margin:6px 0 0}.filter-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px;margin-top:20px}.filter-grid label{display:flex;flex-direction:column;gap:7px}.filter-grid label>span{font-size:12px;font-weight:800;color:#4e5a72}.filter-grid input,.filter-grid select{width:100%;border:1px solid var(--line);background:#fff;border-radius:12px;padding:12px 13px;outline:none;color:var(--ink);transition:.2s}.filter-grid input:focus,.filter-grid select:focus{border-color:var(--blue2);box-shadow:0 0 0 3px rgba(29,84,199,.10)}.filter-actions{display:flex;align-items:center;gap:16px;margin-top:18px}.hint{color:var(--muted);font-size:13px}.btn{border:0;border-radius:12px;padding:11px 16px;font-weight:800;cursor:pointer}.btn-primary{background:var(--blue);color:#fff}.btn-primary:hover{background:var(--blue2)}.btn-secondary{background:#fff;color:var(--blue);border:1px solid var(--line);display:block;margin:18px auto 0}.btn-ghost{background:transparent;color:var(--muted);border:1px solid var(--line)}.btn-sm{padding:9px 12px;font-size:12px}.hidden{display:none!important}
.results-section{margin-top:28px}.results-meta{color:var(--muted);font-size:14px}.results-meta span{color:var(--ink);font-weight:900}.chips{display:flex;flex-wrap:wrap;gap:8px;margin:12px 0 16px}.chip{background:#fff;border:1px solid var(--line);padding:7px 10px;border-radius:999px;font-size:12px;color:var(--muted)}.results-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}.result-card{background:#fff;border:1px solid var(--line);border-radius:18px;padding:18px;box-shadow:0 8px 24px rgba(24,48,91,.06);display:flex;flex-direction:column;min-height:310px}.result-card.best{border-color:#8db0ff;box-shadow:0 12px 30px rgba(29,84,199,.12)}.result-top{display:flex;justify-content:space-between;gap:12px}.model-title{font-weight:900;font-size:20px;line-height:1.1}.model-sub{color:var(--muted);font-size:12px;margin-top:4px}.match{font-size:11px;font-weight:900;padding:6px 8px;border-radius:999px;background:#edf7f2;color:var(--green);height:max-content}.match.near{background:#fff3e7;color:#b85f1c}.metric-main{display:flex;align-items:end;justify-content:space-between;margin:16px 0}.rpm-value{font-size:32px;font-weight:900;letter-spacing:-.03em}.rpm-label{font-size:12px;color:var(--muted)}.shaft-badge{background:var(--soft);color:var(--blue);padding:8px 10px;border-radius:10px;font-size:12px;font-weight:800}.metric-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:10px}.metric{padding:10px;border-radius:12px;background:#f8fafd}.metric span{display:block;color:var(--muted);font-size:10px;text-transform:uppercase;letter-spacing:.05em}.metric b{display:block;margin-top:3px;font-size:14px}.card-actions{display:flex;gap:8px;margin-top:auto;padding-top:16px}.card-actions .btn{flex:1}.source-line{font-size:10px;color:#9aa4b6;margin-top:10px}
.section-intro{margin-bottom:24px}.reference-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}.reference-card{display:flex;text-align:left;align-items:flex-start;gap:14px;background:#fff;border:1px solid var(--line);border-radius:18px;padding:18px;cursor:pointer;box-shadow:0 8px 24px rgba(24,48,91,.05)}.reference-card:hover{border-color:#9fb7ef}.reference-card h3{margin:0 0 6px;font-size:17px}.reference-card p{margin:0;color:var(--muted);line-height:1.45;font-size:13px}.ref-icon{min-width:48px;height:48px;display:grid;place-items:center;border-radius:14px;background:var(--soft);color:var(--blue);font-weight:900}.nrv-switch{display:flex;gap:8px;margin-bottom:16px}.mini-tab{background:#fff;border:1px solid var(--line)}.image-stack{display:grid;gap:16px}.image-stack.two-cols{grid-template-columns:1fr 1fr}.image-stack img{width:100%;background:#fff;border:1px solid var(--line);border-radius:16px;box-shadow:var(--shadow)}.hydro-types{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px;margin-bottom:20px}.hydro-card{background:#fff;border:1px solid var(--line);border-radius:14px;padding:14px}.hydro-card b{display:block}.hydro-card span{display:block;color:var(--muted);font-size:12px;margin-top:4px}
.modal{position:fixed;inset:0;z-index:50;display:grid;place-items:center;padding:18px}.modal-backdrop{position:absolute;inset:0;background:rgba(8,17,37,.62);backdrop-filter:blur(4px)}.modal-card{position:relative;background:#fff;border-radius:20px;box-shadow:0 30px 80px rgba(0,0,0,.25);max-height:92vh;overflow:auto;width:min(1100px,96vw)}.detail-modal-card{padding:22px}.image-modal-card{width:min(1250px,97vw);padding:18px}.modal-head{display:flex;align-items:center;justify-content:space-between;gap:16px;padding-bottom:14px;border-bottom:1px solid var(--line)}.modal-head h2{margin:0;font-size:24px}.icon-btn{width:38px;height:38px;border-radius:50%;border:1px solid var(--line);background:#fff;font-size:25px;line-height:1;cursor:pointer}.detail-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:18px;margin-top:18px}.detail-block{border:1px solid var(--line);border-radius:16px;padding:16px}.detail-block h3{margin:0 0 12px;font-size:16px}.detail-table{display:grid;grid-template-columns:1fr 1fr;gap:1px;background:var(--line);border:1px solid var(--line);border-radius:12px;overflow:hidden}.detail-table div{background:#fff;padding:10px;font-size:13px}.detail-table div:nth-child(odd){color:var(--muted)}.drawing-buttons{display:grid;grid-template-columns:1fr 1fr;gap:8px}.drawing-btn{border:1px solid var(--line);background:#f8fafd;border-radius:12px;padding:10px;text-align:left;cursor:pointer;color:var(--ink);font-weight:700}.copy-box{margin-top:14px;background:#f7f9fc;border:1px solid var(--line);border-radius:14px;padding:14px;white-space:pre-line;font-size:13px;line-height:1.55}.image-zoom-wrap{margin-top:14px;overflow:auto;max-height:78vh;background:#f4f6f9;border-radius:14px}.image-zoom-wrap img{display:block;max-width:none;width:1400px;height:auto;margin:auto}.toast{position:fixed;right:20px;bottom:20px;background:#172033;color:#fff;padding:11px 16px;border-radius:12px;z-index:80;box-shadow:var(--shadow);font-size:13px}
.empty{grid-column:1/-1;background:#fff;border:1px dashed var(--line);border-radius:18px;padding:30px;text-align:center;color:var(--muted)}
@media(max-width:1100px){.filter-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.results-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.reference-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.hydro-types{grid-template-columns:repeat(2,minmax(0,1fr))}.hero{grid-template-columns:1fr}.workflow{justify-content:flex-start;overflow:auto}.detail-grid{grid-template-columns:1fr}}
@media(max-width:680px){.topbar{align-items:flex-start}.brand-subtitle,.status-pill span:last-child{display:none}.tabs{padding:10px 12px}main{padding:20px 12px 50px}.hero h1,.section-intro h1{font-size:32px}.workflow{font-size:11px;padding:12px}.workflow b{display:none}.filter-grid,.results-grid,.reference-grid,.hydro-types,.image-stack.two-cols{grid-template-columns:1fr}.panel{padding:16px}.filter-actions{align-items:stretch;flex-direction:column}.filter-actions .btn{width:100%}.result-card{min-height:0}.modal{padding:8px}.modal-card{border-radius:16px}.drawing-buttons{grid-template-columns:1fr}.image-zoom-wrap img{width:1000px}.brand-title{font-size:16px}}