:root{--font-sans:"Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;--font-mono:ui-monospace, "SF Mono", "Cascadia Code", "JetBrains Mono", Menlo, Consolas, monospace;--radius-sm:7px;--radius:11px;--radius-lg:16px;--header-h:60px;--ease:cubic-bezier(.25, .7, .3, 1)}:root[data-theme=dark]{--lightningcss-light: ;--lightningcss-dark:initial;color-scheme:dark;--bg:#0b1120;--bg-soft:#0e1628;--surface:#121c31;--surface-2:#18233c;--surface-3:#1f2c4a;--text:#e9eef7;--text-muted:#93a1b8;--text-faint:#66758e;--border:#22304a;--border-strong:#31425f;--primary:#4f8df9;--primary-strong:#2f6fe8;--primary-soft:#4f8df924;--accent:#2dd4a7;--accent-soft:#2dd4a721;--warn:#fbbf24;--warn-soft:#fbbf2421;--danger:#f87171;--danger-soft:#f871711f;--shadow:0 1px 2px #02061180, 0 8px 28px -12px #02061199;--shadow-lg:0 2px 6px #02061180, 0 24px 56px -20px #020611bf;--header-bg:#0b1120d1;--hero-grid:#4f8df912;--hero-glow:#2f6fe82e;--scene-bg:#0e1628}:root[data-theme=light]{--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light;--bg:#f4f6fa;--bg-soft:#eef1f7;--surface:#fff;--surface-2:#f6f8fc;--surface-3:#eceff6;--text:#16243c;--text-muted:#54657f;--text-faint:#8593aa;--border:#dde3ee;--border-strong:#c4cede;--primary:#2563eb;--primary-strong:#1d4fd7;--primary-soft:#2563eb17;--accent:#0a9b76;--accent-soft:#0a9b761a;--warn:#b45309;--warn-soft:#b453091a;--danger:#dc2626;--danger-soft:#dc262614;--shadow:0 1px 2px #16243c0f, 0 8px 24px -12px #16243c1f;--shadow-lg:0 2px 6px #16243c0f, 0 24px 48px -20px #16243c2e;--header-bg:#ffffffd9;--hero-grid:#2563eb14;--hero-glow:#2563eb1a;--scene-bg:#eef1f7}*{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth}body{font-family:var(--font-sans);background-color:var(--bg);color:var(--text);-webkit-font-smoothing:antialiased;transition:background-color .25s var(--ease), color .25s var(--ease);font-size:15.5px;line-height:1.6}img,svg,canvas{max-width:100%;display:block}a{color:var(--primary)}a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible,summary:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:4px}@media (prefers-reduced-motion:reduce){*,:before,:after{transition-duration:.01ms!important;animation-duration:.01ms!important}html{scroll-behavior:auto}}.app{flex-direction:column;min-height:100vh;display:flex}.main-content{flex:1;width:100%;max-width:1280px;margin:0 auto;padding:2.2rem 1.5rem 4rem}.skip-link{background-color:var(--primary-strong);color:#fff;z-index:200;border-radius:0 0 10px 10px;padding:.7rem 1.4rem;font-weight:600;text-decoration:none;transition:top .2s;position:absolute;top:-100%;left:50%;transform:translate(-50%)}.skip-link:focus{outline:none;top:0}.header{z-index:100;height:var(--header-h);background:var(--header-bg);-webkit-backdrop-filter:blur(14px);border-bottom:1px solid var(--border);position:sticky;top:0}.header-content{align-items:center;gap:1rem;max-width:1280px;height:100%;margin:0 auto;padding:0 1.5rem;display:flex}.logo{color:var(--text);letter-spacing:-.01em;white-space:nowrap;align-items:center;gap:.65rem;margin-right:auto;font-size:1.06rem;font-weight:700;text-decoration:none;display:flex}.logo-icon{flex-shrink:0;width:30px;height:30px}.nav{align-items:center;gap:.2rem;display:flex}.nav a{color:var(--text-muted);white-space:nowrap;border-radius:8px;padding:.42rem .78rem;font-size:.92rem;font-weight:500;text-decoration:none;transition:color .15s,background-color .15s}.nav a:hover{color:var(--text);background:var(--surface-2)}.nav a.active{color:var(--primary);background:var(--primary-soft)}.header-actions{align-items:center;gap:.5rem;display:flex}.nav-group{position:relative}.nav-group-btn{color:var(--text-muted);cursor:pointer;white-space:nowrap;background:0 0;border:none;border-radius:8px;align-items:center;gap:.32rem;padding:.42rem .78rem;font-family:inherit;font-size:.92rem;font-weight:500;transition:color .15s,background-color .15s;display:inline-flex}.nav-group-btn:hover{color:var(--text);background:var(--surface-2)}.nav-group-btn.active{color:var(--primary);background:var(--primary-soft)}.nav-group-btn svg{transition:transform .18s var(--ease)}.nav-group.open .nav-group-btn svg{transform:rotate(180deg)}.nav-menu{background:var(--surface);border:1px solid var(--border);min-width:195px;box-shadow:var(--shadow-lg);z-index:120;border-radius:11px;flex-direction:column;gap:2px;padding:.4rem;display:none;position:absolute;top:calc(100% + 8px);left:0}.nav-group.open .nav-menu{display:flex}.nav-menu a{padding:.5rem .75rem;display:block}.icon-btn{border:1px solid var(--border);background:var(--surface);width:38px;height:38px;color:var(--text-muted);cursor:pointer;border-radius:9px;justify-content:center;align-items:center;transition:color .15s,border-color .15s,background-color .15s;display:inline-flex}.icon-btn:hover{color:var(--text);border-color:var(--border-strong)}.mobile-menu-btn{display:none}.btn{cursor:pointer;white-space:nowrap;border:1px solid #0000;border-radius:9px;justify-content:center;align-items:center;gap:.45rem;padding:.62rem 1.15rem;font-family:inherit;font-size:.92rem;font-weight:600;text-decoration:none;transition:background-color .15s,border-color .15s,color .15s,transform .1s;display:inline-flex}.btn:active{transform:translateY(1px)}.btn:disabled{opacity:.55;cursor:not-allowed}.btn-primary{background:var(--primary-strong);color:#fff}.btn-primary:hover:not(:disabled){background:var(--primary)}.btn-secondary{background:var(--surface-2);color:var(--text);border-color:var(--border)}.btn-secondary:hover:not(:disabled){border-color:var(--border-strong);background:var(--surface-3)}.btn-ghost{color:var(--text-muted);background:0 0;border-color:#0000}.btn-ghost:hover:not(:disabled){color:var(--text);background:var(--surface-2)}.btn-danger-ghost{color:var(--danger);background:0 0;border-color:#0000}.btn-danger-ghost:hover:not(:disabled){background:var(--danger-soft)}.btn-sm{border-radius:8px;padding:.4rem .78rem;font-size:.83rem}.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow)}.card-pad{padding:1.3rem 1.4rem}.segmented{background:var(--surface-2);border:1px solid var(--border);border-radius:10px;gap:2px;padding:3px;display:inline-flex}.segmented button{color:var(--text-muted);cursor:pointer;white-space:nowrap;background:0 0;border:none;border-radius:7px;padding:.38rem .85rem;font-family:inherit;font-size:.86rem;font-weight:600;transition:color .15s,background-color .15s,box-shadow .15s}.segmented button:hover{color:var(--text)}.segmented button.active{background:var(--surface);color:var(--primary);box-shadow:0 1px 3px #0000002e}.control-row{flex-wrap:wrap;align-items:center;gap:.6rem 1.4rem;margin-bottom:1.2rem;display:flex}.control-group{align-items:center;gap:.6rem;display:flex}.control-label{color:var(--text-muted);font-size:.86rem;font-weight:600}.page-head{margin-bottom:1.6rem}.page-head .crumb{letter-spacing:.06em;text-transform:uppercase;color:var(--primary);margin-bottom:.3rem;font-size:.82rem;font-weight:600}.page-head h1{letter-spacing:-.02em;font-size:clamp(1.5rem,3vw,2rem);line-height:1.25}.page-description{color:var(--text-muted);max-width:68ch;margin-top:.45rem}.calc-layout{grid-template-columns:minmax(0,7fr) minmax(0,6fr);align-items:start;gap:1.4rem;display:grid}.calc-inputs{flex-direction:column;gap:1.4rem;min-width:0;display:flex}.calc-results{top:calc(var(--header-h) + 1.2rem);flex-direction:column;gap:1.4rem;min-width:0;display:flex;position:sticky}@media (width<=1020px){.calc-layout{grid-template-columns:1fr}.calc-results{position:static}}.axis-panel{padding:1.2rem 1.3rem 1.3rem}.axis-panel-head{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:.7rem;margin-bottom:.35rem;display:flex}.axis-panel-head h2{letter-spacing:-.01em;align-items:center;gap:.55rem;font-size:1.06rem;display:flex}.axis-chip{background:var(--primary-soft);width:26px;height:26px;color:var(--primary);border-radius:7px;justify-content:center;align-items:center;font-size:.85rem;font-weight:700;display:inline-flex}.axis-chip.accent{background:var(--accent-soft);color:var(--accent)}.axis-desc{color:var(--text-muted);margin-bottom:.9rem;font-size:.88rem}.point-table{border:1px solid var(--border);border-radius:var(--radius-sm);overflow:hidden}.point-row{border-bottom:1px solid var(--border);background:var(--surface);grid-template-columns:2.2rem 1fr 1fr 1fr 2.2rem;align-items:center;display:grid}.point-row:last-child{border-bottom:none}.point-row.head{background:var(--surface-2)}.point-row.head span{letter-spacing:.08em;color:var(--text-faint);text-align:center;padding:.45rem 0;font-size:.74rem;font-weight:700}.point-index{color:var(--text-faint);text-align:center;font-variant-numeric:tabular-nums;font-size:.8rem;font-weight:600}.point-index.complete{color:var(--accent)}.point-row input{width:100%;font-family:var(--font-mono);color:var(--text);border:none;border-left:1px solid var(--border);background:0 0;min-width:0;padding:.55rem .65rem;font-size:.9rem}.point-row input::placeholder{color:var(--text-faint);opacity:.7}.point-row input:focus{background:var(--primary-soft);outline:none}.point-row input::-webkit-outer-spin-button{-webkit-appearance:none;margin:0}.point-row input::-webkit-inner-spin-button{-webkit-appearance:none;margin:0}.point-row input[type=number]{appearance:textfield}.row-remove{border:none;border-left:1px solid var(--border);width:100%;height:100%;color:var(--text-faint);cursor:pointer;background:0 0;justify-content:center;align-items:center;font-size:1rem;transition:color .15s,background-color .15s;display:inline-flex}.row-remove:hover:not(:disabled){color:var(--danger);background:var(--danger-soft)}.row-remove:disabled{opacity:.3;cursor:not-allowed}.point-table-actions{flex-wrap:wrap;gap:.45rem;margin-top:.7rem;display:flex}.point-hint{color:var(--text-faint);margin-top:.55rem;font-size:.8rem}.point-hint kbd{font-family:var(--font-mono);background:var(--surface-2);border:1px solid var(--border);border-radius:4px;padding:.05rem .32rem;font-size:.74rem}details.panel{border:1px solid var(--border);border-radius:var(--radius);background:var(--surface);box-shadow:var(--shadow);overflow:hidden}details.panel summary{cursor:pointer;-webkit-user-select:none;user-select:none;color:var(--text);align-items:center;gap:.6rem;padding:.95rem 1.3rem;font-size:.95rem;font-weight:600;list-style:none;display:flex}details.panel summary::-webkit-details-marker{display:none}details.panel summary .chev{transition:transform .2s var(--ease);color:var(--text-faint);margin-left:auto}details.panel[open] summary .chev{transform:rotate(180deg)}details.panel summary:hover{background:var(--surface-2)}.panel-body{border-top:1px solid var(--border);padding:1rem 1.3rem 1.3rem}.panel-icon{color:var(--primary);flex-shrink:0}.import-textarea,textarea,select,input[type=text],input[type=email]{color:var(--text);background:var(--bg-soft);border:1px solid var(--border);border-radius:8px;width:100%;padding:.6rem .75rem;font-family:inherit;font-size:.92rem;transition:border-color .15s}.import-textarea,textarea{font-family:var(--font-mono);resize:vertical;font-size:.84rem;line-height:1.5}textarea:focus,select:focus,input[type=text]:focus,input[type=email]:focus{border-color:var(--primary);outline:none}.import-desc{color:var(--text-muted);margin-bottom:.7rem;font-size:.88rem}.import-desc code,.inline-code{font-family:var(--font-mono);background:var(--surface-2);border:1px solid var(--border);color:var(--accent);border-radius:5px;padding:.1em .4em;font-size:.8em}.import-actions{flex-wrap:wrap;gap:.5rem;margin-top:.7rem;display:flex}.import-success{color:var(--accent);align-items:center;gap:.5rem;margin-top:.7rem;font-size:.88rem;font-weight:500;display:flex}.error-message{background:var(--danger-soft);border:1px solid color-mix(in srgb, var(--danger) 35%, transparent);color:var(--danger);border-radius:9px;align-items:flex-start;gap:.55rem;padding:.75rem .95rem;font-size:.9rem;font-weight:500;display:flex}.notice{background:var(--warn-soft);border:1px solid color-mix(in srgb, var(--warn) 35%, transparent);color:var(--warn);border-radius:9px;padding:.75rem .95rem;font-size:.9rem}.results-card{padding:1.2rem 1.3rem 1.3rem}.results-head{justify-content:space-between;align-items:center;gap:.8rem;margin-bottom:1rem;display:flex}.results-head h2{letter-spacing:-.01em;font-size:1.06rem}.live-dot{color:var(--accent);align-items:center;gap:.4rem;font-size:.78rem;font-weight:600;display:inline-flex}.live-dot:before{content:"";background:var(--accent);width:7px;height:7px;box-shadow:0 0 0 3px var(--accent-soft);border-radius:50%}.result-block{border:1px solid var(--border);border-radius:var(--radius-sm);background:var(--surface-2);padding:.95rem 1rem}.result-block+.result-block{margin-top:.85rem}.result-block.delta-block{background:var(--primary-soft);border-color:color-mix(in srgb, var(--primary) 30%, transparent)}.result-block-head{justify-content:space-between;align-items:center;gap:.6rem;margin-bottom:.15rem;display:flex}.result-block-head h3{align-items:center;gap:.5rem;font-size:.95rem;display:flex}.result-sub{color:var(--text-muted);margin-bottom:.6rem;font-size:.8rem}.copy-btn{color:var(--text-muted);background:var(--surface);border:1px solid var(--border);cursor:pointer;border-radius:7px;padding:.28rem .65rem;font-family:inherit;font-size:.78rem;font-weight:600;transition:color .15s,border-color .15s}.copy-btn:hover{color:var(--primary);border-color:var(--primary)}.copy-btn.copied{color:var(--accent);border-color:var(--accent)}.coord-grid{grid-template-columns:repeat(3,1fr);gap:.5rem;display:grid}.coord{background:var(--surface);border:1px solid var(--border);border-radius:8px;min-width:0;padding:.5rem .65rem}.coord .coord-label{letter-spacing:.07em;color:var(--text-faint);font-size:.72rem;font-weight:700;display:block}.coord .coord-value{font-family:var(--font-mono);color:var(--text);font-variant-numeric:tabular-nums;overflow-wrap:anywhere;font-size:.98rem;font-weight:600;display:block}.delta-block .coord{background:color-mix(in srgb, var(--surface) 75%, transparent)}.stat-row{color:var(--text-muted);flex-wrap:wrap;gap:.4rem 1.1rem;margin-top:.65rem;font-size:.82rem;display:flex}.stat-row b{color:var(--text);font-family:var(--font-mono);font-variant-numeric:tabular-nums;font-weight:600}.q-badge{border-radius:99px;align-items:center;gap:.35rem;padding:.18rem .6rem;font-size:.76rem;font-weight:700;display:inline-flex}.q-badge.excellent{background:var(--accent-soft);color:var(--accent)}.q-badge.good{background:var(--primary-soft);color:var(--primary)}.q-badge.fair{background:var(--warn-soft);color:var(--warn)}.q-badge.warn{background:var(--danger-soft);color:var(--danger)}.residuals{gap:.28rem;margin-top:.75rem;display:grid}.residual-row{grid-template-columns:2rem 1fr 5.2rem;align-items:center;gap:.55rem;font-size:.76rem;display:grid}.residual-row .r-idx{color:var(--text-faint);text-align:right;font-variant-numeric:tabular-nums;font-weight:600}.residual-track{background:var(--surface);border:1px solid var(--border);border-radius:99px;height:8px;position:relative;overflow:hidden}.residual-track:after{content:"";background:var(--border-strong);width:1px;position:absolute;top:0;bottom:0;left:50%}.residual-fill{background:var(--primary);opacity:.85;border-radius:99px;position:absolute;top:1px;bottom:1px}.residual-fill.neg{background:var(--warn)}.residual-row .r-val{font-family:var(--font-mono);color:var(--text-muted);font-variant-numeric:tabular-nums;text-align:right}.results-placeholder{text-align:center;color:var(--text-muted);padding:2.2rem 1.5rem}.results-placeholder .ph-icon{background:var(--surface-2);width:46px;height:46px;color:var(--text-faint);border-radius:12px;justify-content:center;align-items:center;margin:0 auto .8rem;display:flex}.results-placeholder ul{gap:.3rem;margin-top:.8rem;font-size:.88rem;list-style:none;display:grid}.results-placeholder li{color:var(--text-faint)}.results-placeholder li.done{color:var(--accent)}.report-grid{grid-template-columns:1fr 1fr;gap:.6rem;margin-bottom:.6rem;display:grid}.report-grid .field-full{grid-column:1/-1}.field label{color:var(--text-muted);margin-bottom:.25rem;font-size:.78rem;font-weight:600;display:block}.export-actions{flex-wrap:wrap;gap:.5rem;margin-top:.85rem;display:flex}.scene-card{overflow:hidden}.scene-head{border-bottom:1px solid var(--border);justify-content:space-between;align-items:center;gap:.7rem;padding:.85rem 1.3rem;display:flex}.scene-head h2{font-size:.98rem}.scene-legend{color:var(--text-muted);flex-wrap:wrap;gap:.35rem .9rem;font-size:.78rem;display:flex}.scene-legend .dot{border-radius:50%;width:9px;height:9px;margin-right:.35rem;display:inline-block}.scene-container{background:var(--scene-bg);height:340px;position:relative}.scene-container canvas{outline:none}.scene-hint{color:var(--text-faint);pointer-events:none;font-size:.72rem;position:absolute;bottom:.6rem;left:.85rem}.scene-reset{position:absolute;top:.6rem;right:.6rem}.scene-empty{height:100%;color:var(--text-faint);justify-content:center;align-items:center;font-size:.9rem;display:flex}.diagram-card{grid-template-columns:240px 1fr;align-items:center;gap:1.4rem;padding:1.2rem 1.4rem;display:grid}.diagram-card .diagram-figure{width:100%}.diagram-instructions h2{margin-bottom:.45rem;font-size:1rem}.diagram-instructions ol{color:var(--text-muted);gap:.22rem;margin-left:1.2rem;font-size:.9rem;display:grid}.diagram-tip{color:var(--text-muted);background:var(--primary-soft);border-radius:8px;margin-top:.7rem;padding:.55rem .8rem;font-size:.85rem}.diagram-tip strong{color:var(--primary)}@media (width<=720px){.diagram-card{grid-template-columns:1fr}.diagram-card .diagram-figure{max-width:230px;margin:0 auto}}.mc-stroke{stroke:var(--text-muted)}.mc-stroke-soft{stroke:var(--border-strong)}.mc-fill{fill:var(--surface-3)}.mc-fill-soft{fill:var(--surface-2)}.mc-primary{color:var(--primary)}.mc-accent{color:var(--accent)}.mc-warn{color:var(--warn)}.mc-text{fill:var(--text-muted);font-family:var(--font-sans);font-weight:600}.hero{text-align:center;border-radius:var(--radius-lg);background:radial-gradient(ellipse 60% 55% at 50% 0%, var(--hero-glow), transparent 70%), linear-gradient(var(--hero-grid) 1px, transparent 1px), linear-gradient(90deg, var(--hero-grid) 1px, transparent 1px);border:1px solid var(--border);background-size:100% 100%,34px 34px,34px 34px;margin-bottom:2.6rem;padding:4.2rem 1rem 3.6rem;position:relative;overflow:hidden}.hero h1{letter-spacing:-.03em;max-width:22ch;margin:.8rem auto 0;font-size:clamp(1.9rem,4.5vw,3rem);line-height:1.12}.hero h1 .grad{background:linear-gradient(92deg, var(--primary), var(--accent));-webkit-text-fill-color:transparent;color:#0000;-webkit-background-clip:text;background-clip:text}.hero-subtitle{color:var(--text-muted);max-width:58ch;margin:1rem auto 0;font-size:1.05rem}.hero-actions{flex-wrap:wrap;justify-content:center;gap:.7rem;margin-top:1.7rem;display:flex}.version-badge{color:var(--text-muted);background:var(--surface);border:1px solid var(--border);border-radius:99px;align-items:center;gap:.45rem;padding:.3rem .85rem;font-size:.78rem;font-weight:600;display:inline-flex}.version-badge .vb-dot{background:var(--accent);border-radius:50%;width:7px;height:7px}.feature-strip{grid-template-columns:repeat(4,1fr);gap:.9rem;margin-bottom:2.6rem;display:grid}.feature-item{align-items:flex-start;gap:.75rem;padding:1rem 1.1rem;display:flex}.feature-item .f-icon{background:var(--primary-soft);width:36px;height:36px;color:var(--primary);border-radius:9px;flex-shrink:0;justify-content:center;align-items:center;display:flex}.feature-item h3{font-size:.92rem}.feature-item p{color:var(--text-muted);font-size:.8rem;line-height:1.45}@media (width<=980px){.feature-strip{grid-template-columns:repeat(2,1fr)}}@media (width<=540px){.feature-strip{grid-template-columns:1fr}}.section-title{letter-spacing:-.02em;margin-bottom:.35rem;font-size:1.35rem}.section-sub{color:var(--text-muted);margin-bottom:1.4rem;font-size:.95rem}.tool-cards{grid-template-columns:repeat(2,1fr);gap:1.1rem;margin-bottom:2.8rem;display:grid}@media (width<=860px){.tool-cards{grid-template-columns:1fr}}.tool-card{color:var(--text);transition:border-color .18s, transform .18s var(--ease), box-shadow .18s;grid-template-columns:130px 1fr;align-items:center;gap:1.1rem;padding:1.25rem 1.3rem;text-decoration:none;display:grid}.tool-card:hover{border-color:var(--primary);box-shadow:var(--shadow-lg);transform:translateY(-3px)}.tool-card .tool-figure{width:100%}.tool-card h3{letter-spacing:-.01em;align-items:center;gap:.5rem;font-size:1.05rem;display:flex}.tool-card .tool-sub{color:var(--text-muted);margin:.25rem 0 .55rem;font-size:.86rem}.tool-card ul{color:var(--text-muted);gap:.18rem;font-size:.82rem;list-style:none;display:grid}.tool-card ul li:before{content:"·";color:var(--primary);margin-right:.45rem;font-weight:900}.tool-card .tool-link{color:var(--primary);margin-top:.65rem;font-size:.86rem;font-weight:600;display:inline-block}@media (width<=480px){.tool-card{grid-template-columns:1fr}.tool-card .tool-figure{max-width:150px}}.steps{grid-template-columns:repeat(4,1fr);gap:.9rem;margin-bottom:1rem;display:grid}@media (width<=980px){.steps{grid-template-columns:repeat(2,1fr)}}@media (width<=540px){.steps{grid-template-columns:1fr}}.step{padding:1.15rem 1.2rem;position:relative}.step-number{background:var(--primary-soft);width:30px;height:30px;color:var(--primary);border-radius:9px;justify-content:center;align-items:center;margin-bottom:.65rem;font-size:.92rem;font-weight:700;display:inline-flex}.step h3{margin-bottom:.25rem;font-size:.95rem}.step p{color:var(--text-muted);font-size:.84rem;line-height:1.5}.footer{border-top:1px solid var(--border);text-align:center;color:var(--text-faint);padding:1.6rem 1.5rem 2rem;font-size:.84rem}.footer .footer-links{flex-wrap:wrap;justify-content:center;gap:1.1rem;margin-bottom:.5rem;display:flex}.footer a{color:var(--text-muted);text-decoration:none}.footer a:hover{color:var(--primary)}.narrow-page{max-width:760px;margin:0 auto}.feedback-form{gap:1rem;display:grid}.form-row{grid-template-columns:1fr 1fr;gap:1rem;display:grid}@media (width<=620px){.form-row{grid-template-columns:1fr}}.form-group label{margin-bottom:.3rem;font-size:.86rem;font-weight:600;display:block}.form-hint{color:var(--text-faint);margin-top:.25rem;font-size:.78rem;display:block}.required{color:var(--danger)}.form-actions{gap:.6rem;display:flex}.feedback-success{text-align:center;padding:3.2rem 1.5rem}.feedback-success .fs-icon{background:var(--accent-soft);width:54px;height:54px;color:var(--accent);border-radius:50%;justify-content:center;align-items:center;margin:0 auto 1rem;display:flex}.feedback-success p{color:var(--text-muted);max-width:46ch;margin:.4rem auto 0}.feedback-success .btn{margin-top:1.4rem}.floating-feedback-btn{z-index:90;background:var(--primary-strong);color:#fff;width:48px;height:48px;box-shadow:var(--shadow-lg);transition:transform .15s var(--ease), background-color .15s;border-radius:50%;justify-content:center;align-items:center;display:flex;position:fixed;bottom:1.4rem;right:1.4rem}.floating-feedback-btn:hover{background:var(--primary);transform:scale(1.07)}.install-card{padding:1.2rem 1.4rem}.install-card+.install-card{margin-top:1rem}.install-card h2{margin-bottom:.55rem;font-size:1.02rem}.install-subtitle{color:var(--text);margin:1rem 0 .5rem;font-size:.9rem}.install-card p{color:var(--text-muted);font-size:.92rem}.install-link{word-break:break-all;font-size:.88rem}.install-steps{color:var(--text-muted);gap:.2rem;margin-left:1.2rem;font-size:.9rem;display:grid}.command-list{gap:.45rem;display:grid}.command-row{background:var(--bg-soft);border:1px solid var(--border);border-radius:8px;justify-content:space-between;align-items:center;gap:.8rem;padding:.5rem .5rem .5rem .85rem;display:flex}.command-row code{font-family:var(--font-mono);color:var(--text);white-space:nowrap;scrollbar-width:thin;font-size:.82rem;overflow-x:auto}.install-pre{background:var(--bg-soft);border:1px solid var(--border);border-radius:8px;padding:.8rem 1rem;overflow-x:auto}.install-pre code{font-family:var(--font-mono);color:var(--text);font-size:.82rem}.not-found{text-align:center;padding:4.5rem 1rem}.not-found .nf-code{font-family:var(--font-mono);color:var(--text-faint);letter-spacing:.05em;font-size:3.4rem;font-weight:700}.not-found p{color:var(--text-muted);margin:.6rem 0 1.4rem}@media (width<=920px){.mobile-menu-btn{border:1px solid var(--border);background:var(--surface);width:38px;height:38px;color:var(--text);cursor:pointer;border-radius:9px;justify-content:center;align-items:center;display:inline-flex}.nav{top:var(--header-h);background:var(--surface);border-bottom:1px solid var(--border);box-shadow:var(--shadow-lg);flex-direction:column;align-items:stretch;gap:.15rem;padding:.6rem 1rem .9rem;display:none;position:absolute;left:0;right:0}.nav.nav-open{display:flex}.nav a{padding:.65rem .8rem;font-size:.98rem}.nav-group{position:static}.nav-group-btn{justify-content:space-between;width:100%;padding:.65rem .8rem;font-size:.98rem}.nav-menu{box-shadow:none;background:0 0;border:none;min-width:0;padding:0 0 .2rem .9rem;position:static}}.toolbox-strip{grid-template-columns:repeat(3,1fr);gap:.9rem;margin-bottom:1rem;display:grid}@media (width<=860px){.toolbox-strip{grid-template-columns:1fr}}a.feature-item{color:var(--text);transition:border-color .18s, transform .18s var(--ease), box-shadow .18s;text-decoration:none}a.feature-item:hover{border-color:var(--primary);box-shadow:var(--shadow-lg);transform:translateY(-3px)}@media (width<=640px){.main-content{padding:1.4rem 1rem 3rem}.hero{padding:3rem 1rem 2.6rem}.coord-grid,.report-grid{grid-template-columns:1fr}}.muted{color:var(--text-muted)}.mt-0{margin-top:0}.sr-only{clip:rect(0 0 0 0);white-space:nowrap;border:0;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}