:root{--brand-50: #EFF5FF;--brand-100: #DBE8FE;--brand-200: #C0D7FC;--brand-300: #94BAF8;--brand-400: #6197F1;--brand-500: #3B78E7;--brand-600: #2A5FCC;--brand-700: #234EA6;--brand-800: #214285;--brand-900: #1F386C;--neutral-50: #F6F8FB;--neutral-100: #EDF1F6;--neutral-200: #E1E7EF;--neutral-300: #CBD3DF;--neutral-400: #9CA7B7;--neutral-500: #687383;--neutral-600: #515C6B;--neutral-700: #3B4552;--neutral-800: #28313C;--neutral-900: #171E27;--gold-50: #FFFBEB;--gold-100: #FEF3C7;--gold-200: #FDE68A;--gold-300: #FCD34D;--gold-400: #FBBF24;--gold-500: #F59E0B;--gold-600: #D97706;--gold-700: #B45309;--exam-50: #F3EFFD;--exam-100: #E7E1FB;--exam-400: #9B85E8;--exam-500: #7C5CE0;--exam-600: #6D4FD0;--exam-700: #5B44B8;--success: #0E9F6E;--warning: #D97706;--danger: #E02424;--surface: #ffffff;--surface-alt: #F6F8FB;--surface-hover: #EFF5FF;--surface-invert: #171E27;--text-strong: #171E27;--text: #3B4552;--text-muted: #687383;--text-invert: #ffffff;--border: #E1E7EF;--border-strong: #94BAF8;--shadow-soft: 0 1px 2px 0 rgba(23, 42, 71, .04), 0 4px 12px -2px rgba(23, 42, 71, .06);--shadow-float: 0 16px 48px -12px rgba(23, 42, 71, .18);--shadow-brand: 0 4px 14px -2px #2A5FCC40;--radius: 16px;--radius-lg: 24px;--radius-xl: 32px}*,:before,:after{--tw-border-spacing-x: 0;--tw-border-spacing-y: 0;--tw-translate-x: 0;--tw-translate-y: 0;--tw-rotate: 0;--tw-skew-x: 0;--tw-skew-y: 0;--tw-scale-x: 1;--tw-scale-y: 1;--tw-pan-x: ;--tw-pan-y: ;--tw-pinch-zoom: ;--tw-scroll-snap-strictness: proximity;--tw-gradient-from-position: ;--tw-gradient-via-position: ;--tw-gradient-to-position: ;--tw-ordinal: ;--tw-slashed-zero: ;--tw-numeric-figure: ;--tw-numeric-spacing: ;--tw-numeric-fraction: ;--tw-ring-inset: ;--tw-ring-offset-width: 0px;--tw-ring-offset-color: #fff;--tw-ring-color: rgb(59 130 246 / .5);--tw-ring-offset-shadow: 0 0 #0000;--tw-ring-shadow: 0 0 #0000;--tw-shadow: 0 0 #0000;--tw-shadow-colored: 0 0 #0000;--tw-blur: ;--tw-brightness: ;--tw-contrast: ;--tw-grayscale: ;--tw-hue-rotate: ;--tw-invert: ;--tw-saturate: ;--tw-sepia: ;--tw-drop-shadow: ;--tw-backdrop-blur: ;--tw-backdrop-brightness: ;--tw-backdrop-contrast: ;--tw-backdrop-grayscale: ;--tw-backdrop-hue-rotate: ;--tw-backdrop-invert: ;--tw-backdrop-opacity: ;--tw-backdrop-saturate: ;--tw-backdrop-sepia: ;--tw-contain-size: ;--tw-contain-layout: ;--tw-contain-paint: ;--tw-contain-style: }::backdrop{--tw-border-spacing-x: 0;--tw-border-spacing-y: 0;--tw-translate-x: 0;--tw-translate-y: 0;--tw-rotate: 0;--tw-skew-x: 0;--tw-skew-y: 0;--tw-scale-x: 1;--tw-scale-y: 1;--tw-pan-x: ;--tw-pan-y: ;--tw-pinch-zoom: ;--tw-scroll-snap-strictness: proximity;--tw-gradient-from-position: ;--tw-gradient-via-position: ;--tw-gradient-to-position: ;--tw-ordinal: ;--tw-slashed-zero: ;--tw-numeric-figure: ;--tw-numeric-spacing: ;--tw-numeric-fraction: ;--tw-ring-inset: ;--tw-ring-offset-width: 0px;--tw-ring-offset-color: #fff;--tw-ring-color: rgb(59 130 246 / .5);--tw-ring-offset-shadow: 0 0 #0000;--tw-ring-shadow: 0 0 #0000;--tw-shadow: 0 0 #0000;--tw-shadow-colored: 0 0 #0000;--tw-blur: ;--tw-brightness: ;--tw-contrast: ;--tw-grayscale: ;--tw-hue-rotate: ;--tw-invert: ;--tw-saturate: ;--tw-sepia: ;--tw-drop-shadow: ;--tw-backdrop-blur: ;--tw-backdrop-brightness: ;--tw-backdrop-contrast: ;--tw-backdrop-grayscale: ;--tw-backdrop-hue-rotate: ;--tw-backdrop-invert: ;--tw-backdrop-opacity: ;--tw-backdrop-saturate: ;--tw-backdrop-sepia: ;--tw-contain-size: ;--tw-contain-layout: ;--tw-contain-paint: ;--tw-contain-style: }/*! tailwindcss v3.4.19 | MIT License | https://tailwindcss.com
 */*,:before,:after{box-sizing:border-box;border-width:0;border-style:solid;border-color:#e1e7ef}:before,:after{--tw-content: ""}html,:host{line-height:1.5;-webkit-text-size-adjust:100%;-moz-tab-size:4;-o-tab-size:4;tab-size:4;font-family:Noto Sans SC,PingFang SC,Microsoft YaHei,system-ui,sans-serif;font-feature-settings:normal;font-variation-settings:normal;-webkit-tap-highlight-color:transparent}body{margin:0;line-height:inherit}hr{height:0;color:inherit;border-top-width:1px}abbr:where([title]){-webkit-text-decoration:underline dotted;text-decoration:underline dotted}h1,h2,h3,h4,h5,h6{font-size:inherit;font-weight:inherit}a{color:inherit;text-decoration:inherit}b,strong{font-weight:bolder}code,kbd,samp,pre{font-family:JetBrains Mono,Consolas,monospace;font-feature-settings:normal;font-variation-settings:normal;font-size:1em}small{font-size:80%}sub,sup{font-size:75%;line-height:0;position:relative;vertical-align:baseline}sub{bottom:-.25em}sup{top:-.5em}table{text-indent:0;border-color:inherit;border-collapse:collapse}button,input,optgroup,select,textarea{font-family:inherit;font-feature-settings:inherit;font-variation-settings:inherit;font-size:100%;font-weight:inherit;line-height:inherit;letter-spacing:inherit;color:inherit;margin:0;padding:0}button,select{text-transform:none}button,input:where([type=button]),input:where([type=reset]),input:where([type=submit]){-webkit-appearance:button;background-color:transparent;background-image:none}:-moz-focusring{outline:auto}:-moz-ui-invalid{box-shadow:none}progress{vertical-align:baseline}::-webkit-inner-spin-button,::-webkit-outer-spin-button{height:auto}[type=search]{-webkit-appearance:textfield;outline-offset:-2px}::-webkit-search-decoration{-webkit-appearance:none}::-webkit-file-upload-button{-webkit-appearance:button;font:inherit}summary{display:list-item}blockquote,dl,dd,h1,h2,h3,h4,h5,h6,hr,figure,p,pre{margin:0}fieldset{margin:0;padding:0}legend{padding:0}ol,ul,menu{list-style:none;margin:0;padding:0}dialog{padding:0}textarea{resize:vertical}input::-moz-placeholder,textarea::-moz-placeholder{opacity:1;color:#9ca7b7}input::placeholder,textarea::placeholder{opacity:1;color:#9ca7b7}button,[role=button]{cursor:pointer}:disabled{cursor:default}img,svg,video,canvas,audio,iframe,embed,object{display:block;vertical-align:middle}img,video{max-width:100%;height:auto}[hidden]:where(:not([hidden=until-found])){display:none}.container{width:100%}@media (min-width: 640px){.container{max-width:640px}}@media (min-width: 768px){.container{max-width:768px}}@media (min-width: 1024px){.container{max-width:1024px}}@media (min-width: 1280px){.container{max-width:1280px}}@media (min-width: 1536px){.container{max-width:1536px}}.visible{visibility:visible}.collapse{visibility:collapse}.fixed{position:fixed}.absolute{position:absolute}.relative{position:relative}.sticky{position:sticky}.block{display:block}.flex{display:flex}.table{display:table}.grid{display:grid}.hidden{display:none}.border-collapse{border-collapse:collapse}.transform{transform:translate(var(--tw-translate-x),var(--tw-translate-y)) rotate(var(--tw-rotate)) skew(var(--tw-skew-x)) skewY(var(--tw-skew-y)) scaleX(var(--tw-scale-x)) scaleY(var(--tw-scale-y))}.resize{resize:both}.flex-wrap{flex-wrap:wrap}.border{border-width:1px}.underline{text-decoration-line:underline}.antialiased{-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}.outline{outline-style:solid}.blur{--tw-blur: blur(8px);filter:var(--tw-blur) var(--tw-brightness) var(--tw-contrast) var(--tw-grayscale) var(--tw-hue-rotate) var(--tw-invert) var(--tw-saturate) var(--tw-sepia) var(--tw-drop-shadow)}.filter{filter:var(--tw-blur) var(--tw-brightness) var(--tw-contrast) var(--tw-grayscale) var(--tw-hue-rotate) var(--tw-invert) var(--tw-saturate) var(--tw-sepia) var(--tw-drop-shadow)}.backdrop-filter{-webkit-backdrop-filter:var(--tw-backdrop-blur) var(--tw-backdrop-brightness) var(--tw-backdrop-contrast) var(--tw-backdrop-grayscale) var(--tw-backdrop-hue-rotate) var(--tw-backdrop-invert) var(--tw-backdrop-opacity) var(--tw-backdrop-saturate) var(--tw-backdrop-sepia);backdrop-filter:var(--tw-backdrop-blur) var(--tw-backdrop-brightness) var(--tw-backdrop-contrast) var(--tw-backdrop-grayscale) var(--tw-backdrop-hue-rotate) var(--tw-backdrop-invert) var(--tw-backdrop-opacity) var(--tw-backdrop-saturate) var(--tw-backdrop-sepia)}.transition{transition-property:color,background-color,border-color,text-decoration-color,fill,stroke,opacity,box-shadow,transform,filter,backdrop-filter;transition-timing-function:cubic-bezier(.4,0,.2,1);transition-duration:.15s}.ease-in-out{transition-timing-function:cubic-bezier(.4,0,.2,1)}:root{--maxw: 1200px;--accent-2: var(--exam-500);--accent-2-soft: var(--exam-50);--header-h: 64px;--pad-x: clamp(1.1rem, 4vw, 1.5rem);--section-y: clamp(3.25rem, 8vw, 6rem);--gap: clamp(.9rem, 2.2vw, 1.4rem)}*{margin:0;padding:0;box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:calc(var(--header-h) + .75rem);-webkit-text-size-adjust:100%}body{font-family:Noto Sans SC,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;background:var(--surface);color:var(--text);line-height:1.7;overflow-x:hidden;-webkit-font-smoothing:antialiased;-webkit-tap-highlight-color:transparent}a{color:inherit}img{max-width:100%;display:block}h1,h2,h3,h4{text-wrap:balance;overflow-wrap:break-word}p{text-wrap:pretty}.container{width:100%;max-width:var(--maxw);margin:0 auto;padding-inline:max(var(--pad-x),env(safe-area-inset-left),env(safe-area-inset-right))}.gold{color:var(--brand-600)}.icon{display:inline-block;width:1em;height:1em;vertical-align:-.125em;flex-shrink:0}.header{position:fixed;top:0;left:0;right:0;z-index:1000;padding:.7rem max(var(--pad-x),env(safe-area-inset-left),env(safe-area-inset-right));padding-top:max(.7rem,env(safe-area-inset-top));background:rgba(255,255,255,.86);backdrop-filter:blur(24px);-webkit-backdrop-filter:blur(24px);border-bottom:1px solid var(--border);transition:background .3s ease,padding .3s ease,box-shadow .3s ease}.header.scrolled{background:rgba(255,255,255,.96);padding-block:.45rem;box-shadow:var(--shadow-soft)}.header-inner{max-width:var(--maxw);margin:0 auto;display:flex;justify-content:space-between;align-items:center;gap:1rem}.logo{display:flex;align-items:center;gap:10px;text-decoration:none;min-width:0}.logo-icon{width:clamp(34px,9vw,40px);height:clamp(34px,9vw,40px);border-radius:11px;overflow:hidden;box-shadow:var(--shadow-brand);flex-shrink:0;background:var(--brand-600);display:flex;align-items:center;justify-content:center}.logo-icon img{width:100%;height:100%;-o-object-fit:cover;object-fit:cover}.logo-text{font-size:clamp(1.1rem,4vw,1.25rem);font-weight:900;letter-spacing:1px;white-space:nowrap}.logo-text .gold{font-weight:900}.nav{display:flex;align-items:center;gap:clamp(1rem,2.2vw,1.6rem)}.nav a{text-decoration:none;color:var(--text);font-size:.92rem;font-weight:500;transition:color .2s;white-space:nowrap}.nav a:hover{color:var(--brand-600)}.nav .nav-cta{padding:.5rem 1.25rem;border-radius:999px;background:var(--brand-600);color:var(--text-invert);font-weight:700;box-shadow:var(--shadow-brand);transition:transform .2s,box-shadow .2s}.nav .nav-cta:hover{color:var(--text-invert);transform:translateY(-1px)}.nav .nav-internal{display:inline-flex;align-items:center;gap:.3rem;padding:.3rem .7rem;border-radius:999px;border:1px dashed var(--brand-200);background:var(--brand-50);color:var(--brand-700);font-size:.82rem;font-weight:600}.nav .nav-internal:hover{background:var(--brand-100);color:var(--brand-800)}.nav .nav-internal svg{width:.85rem;height:.85rem}.menu-toggle{display:none;background:none;border:none;color:var(--text-strong);font-size:1.55rem;cursor:pointer;line-height:1;padding:.4rem;margin-right:-.4rem;border-radius:10px}.menu-toggle:active{background:var(--surface-hover)}.nav-backdrop{display:none}.hero{position:relative;display:flex;align-items:center;overflow:hidden;min-height:min(100svh,860px);padding:calc(var(--header-h) + clamp(2rem,6vh,4rem)) 0 clamp(2.5rem,6vh,4rem)}@supports not (height: 100svh){.hero{min-height:min(100vh,860px)}}.hero:before{content:"";position:absolute;top:0;right:0;bottom:0;left:0;background:radial-gradient(900px 480px at 12% -10%,rgba(59,120,231,.12),transparent 58%),radial-gradient(720px 420px at 92% 18%,rgba(124,92,224,.08),transparent 55%);animation:heroGlow 10s ease-in-out infinite alternate}@keyframes heroGlow{0%{opacity:.7}to{opacity:1}}.hero-shell{position:relative;z-index:1;width:100%;display:grid;align-items:center;grid-template-columns:minmax(0,1.05fr) minmax(280px,.95fr);gap:clamp(2rem,5vw,4.5rem)}.hero-copy{min-width:0}.hero-badge{display:inline-block;padding:.45rem 1.1rem;margin-bottom:clamp(1rem,2.4vw,1.4rem);border:1px solid var(--border-strong);border-radius:999px;background:var(--surface-hover);color:var(--brand-600);font-size:clamp(.78rem,2.6vw,.85rem);font-weight:600}.hero-title{font-size:clamp(2.1rem,4.4vw,3.5rem);font-weight:900;line-height:1.18;letter-spacing:.5px}.hero-title .highlight{color:var(--brand-600)}.hero-lead{margin-top:1.1rem;max-width:36em;color:var(--text);font-size:clamp(.95rem,1.6vw,1.08rem);line-height:1.7}.hero-copy .download-group{justify-content:flex-start}.hero-copy .more-versions{text-align:left}.hero-panel{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-lg);box-shadow:var(--shadow-float);overflow:hidden}.hero-panel-bar{display:flex;align-items:center;gap:.7rem;padding:.75rem 1.1rem;background:var(--surface-alt);border-bottom:1px solid var(--border);color:var(--text-muted);font-size:.78rem;font-weight:700;letter-spacing:.3px}.hero-panel-dots{width:38px;height:10px;border-radius:999px;flex-shrink:0;background:radial-gradient(circle at 5px 5px,#E02424 3.5px,transparent 3.6px),radial-gradient(circle at 19px 5px,#D97706 3.5px,transparent 3.6px),radial-gradient(circle at 33px 5px,#0E9F6E 3.5px,transparent 3.6px)}.hero-panel-grid{display:grid;grid-template-columns:1fr 1fr;gap:.7rem;padding:1.15rem 1.15rem .4rem}.hero-panel-item{display:flex;align-items:center;gap:.7rem;padding:.7rem .75rem;background:var(--surface-hover);border:1px solid var(--border);border-radius:14px}.hero-panel-item .card-icon{width:40px;height:40px;margin-bottom:0;font-size:1.2rem;border-radius:11px}.hero-panel-item h4{margin:0;font-size:.88rem;font-weight:700;line-height:1.35}.hero-panel-foot{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:.5rem;margin:1rem 1.15rem 1.15rem;padding-top:1rem;border-top:1px solid var(--border)}.hero-panel-foot strong{display:block;color:var(--brand-600);font-size:1.05rem;font-weight:800;line-height:1.3}.hero-panel-foot span{display:block;color:var(--text-muted);font-size:.72rem;margin-top:2px}.download-group{display:flex;flex-wrap:wrap;gap:.9rem;justify-content:center;margin-top:clamp(1.8rem,5vw,2.4rem)}.dl-btn{display:inline-flex;align-items:center;justify-content:center;gap:.6rem;padding:.85rem 1.8rem;min-height:48px;border-radius:999px;font-size:1rem;font-weight:700;text-decoration:none;transition:transform .25s,box-shadow .25s,background .25s;cursor:pointer}.dl-btn svg{width:22px;height:22px}.dl-btn-primary{background:var(--brand-600);color:var(--text-invert);box-shadow:var(--shadow-brand)}.dl-btn-secondary{background:var(--surface);color:var(--text-strong);border:1px solid var(--border-strong)}.dl-btn:active{transform:translateY(1px)}@media (hover: hover){.dl-btn-primary:hover{transform:translateY(-2px);box-shadow:var(--shadow-float)}.dl-btn-secondary:hover{transform:translateY(-2px);background:var(--surface-hover)}}.hero-stats{display:flex;flex-wrap:wrap;justify-content:center;gap:clamp(1rem,4vw,2.4rem);margin-top:clamp(1.8rem,5vw,3.2rem)}.hero-stat{flex:1 1 5.5rem;min-width:0;text-align:center}.hero-stat-num{font-size:clamp(1.35rem,5vw,1.9rem);font-weight:900;line-height:1.3}.hero-stat-label{font-size:clamp(.76rem,2.4vw,.82rem);color:var(--text-muted);margin-top:2px}.section{padding:var(--section-y) 0;position:relative}.section-dark{background:var(--surface-alt)}.section-header{text-align:center;max-width:760px;margin:0 auto clamp(2.2rem,6vw,3.5rem)}.section-badge{display:inline-block;padding:.35rem 1rem;margin-bottom:1rem;border-radius:999px;background:var(--surface-hover);border:1px solid var(--border);color:var(--brand-600);font-size:clamp(.74rem,2.4vw,.8rem);font-weight:700;letter-spacing:.5px}.section-title{font-size:clamp(1.6rem,5.5vw,2.7rem);font-weight:900;line-height:1.25}.section-desc{margin-top:1rem;color:var(--text);font-size:clamp(.92rem,2.6vw,1.08rem)}.pill-list{display:flex;flex-wrap:wrap;gap:.5rem;margin-top:1.3rem}.pill{display:inline-flex;align-items:center;gap:6px;padding:.45rem .85rem;border-radius:999px;background:var(--surface);border:1px solid var(--border);color:var(--text-strong);font-size:clamp(.78rem,2.4vw,.85rem);font-weight:500;max-width:100%}.pill b{color:var(--brand-600);font-weight:700}.grid{display:grid;gap:var(--gap)}.grid-2{grid-template-columns:repeat(auto-fit,minmax(min(100%,400px),1fr))}.grid-3{grid-template-columns:repeat(auto-fit,minmax(min(100%,300px),1fr))}.grid-4{grid-template-columns:repeat(auto-fit,minmax(min(100%,225px),1fr))}.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-lg);padding:clamp(1.25rem,3.5vw,1.8rem);transition:transform .28s,border-color .28s,background .28s,box-shadow .28s}@media (hover: hover){.card:hover{transform:translateY(-4px);border-color:var(--border-strong);background:var(--surface-hover);box-shadow:var(--shadow-brand)}}.card-icon{width:clamp(46px,12vw,54px);height:clamp(46px,12vw,54px);border-radius:14px;display:flex;align-items:center;justify-content:center;font-size:1.6rem;margin-bottom:1rem;background:var(--surface-hover);color:var(--brand-600)}.card-icon.alt{background:var(--accent-2-soft);color:var(--accent-2)}.card h4{font-size:clamp(1.05rem,3vw,1.15rem);font-weight:800;margin-bottom:.5rem}.card p{color:var(--text);font-size:clamp(.88rem,2.5vw,.92rem)}.policy-callout{margin-top:1.2rem;padding:clamp(.9rem,3vw,1.15rem);border-radius:14px;background:var(--surface-hover);border:1px solid var(--border-strong)}.policy-callout .pc-badge{display:inline-flex;align-items:center;gap:6px;font-size:.72rem;font-weight:800;letter-spacing:.5px;color:var(--brand-600);background:var(--brand-50);border:1px solid var(--border);padding:.22rem .7rem;border-radius:999px;margin-bottom:.6rem}.policy-callout p{color:var(--text);font-size:clamp(.85rem,2.5vw,.88rem);margin:0;line-height:1.75}.policy-callout b{color:var(--brand-600);font-weight:700}.cta{text-align:center;background:linear-gradient(180deg,var(--brand-50) 0%,var(--surface) 70%);border-top:1px solid var(--border)}.cta-title{font-size:clamp(1.7rem,5.5vw,2.8rem);font-weight:900;line-height:1.25}.cta-desc{color:var(--text);margin:1rem auto 0;max-width:560px;font-size:clamp(.92rem,2.6vw,1rem)}.footer{background:var(--surface-alt);border-top:1px solid var(--border);padding:clamp(2.5rem,7vw,3.5rem) max(var(--pad-x),env(safe-area-inset-left),env(safe-area-inset-right));padding-bottom:calc(2rem + env(safe-area-inset-bottom))}.footer-grid{max-width:var(--maxw);margin:0 auto;display:grid;gap:clamp(1.6rem,4vw,2rem);grid-template-columns:repeat(2,minmax(0,1fr))}.footer-brand{grid-column:1 / -1}.footer-section:last-child{grid-column:1 / -1}.footer-logo{display:flex;align-items:center;gap:10px;margin-bottom:1rem}.footer-logo-icon{width:38px;height:38px;border-radius:10px;overflow:hidden;flex-shrink:0}.footer-logo-icon img{width:100%;height:100%;-o-object-fit:cover;object-fit:cover}.footer-logo-text{font-weight:900;font-size:1.15rem}.footer-desc{color:var(--text-muted);font-size:.88rem;max-width:52ch}.footer-section h4{font-size:.95rem;margin-bottom:.9rem;color:var(--text-strong)}.footer-links{list-style:none;display:flex;flex-direction:column;gap:.55rem}.footer-links a{color:var(--text-muted);text-decoration:none;font-size:.88rem;overflow-wrap:anywhere}.footer-links a:hover{color:var(--brand-600)}.footer-bottom{max-width:var(--maxw);margin:clamp(1.8rem,5vw,2.5rem) auto 0;padding-top:1.5rem;border-top:1px solid var(--border);text-align:center;color:var(--text-muted);font-size:.82rem}.footer-bottom a{color:var(--brand-700);text-decoration:none}@media (min-width: 860px){.footer-grid{grid-template-columns:2fr 1fr 1fr 1fr}.footer-brand,.footer-section:last-child{grid-column:auto}}.reveal-on-scroll .fade-up{opacity:0;transform:translateY(30px);transition:opacity .7s ease,transform .7s ease}.reveal-on-scroll .fade-up.visible{opacity:1;transform:translateY(0)}@media (max-width: 900px){:root{--header-h: 58px}.nav{position:fixed;top:0;right:0;z-index:1000;width:min(78vw,320px);height:100dvh;flex-direction:column;align-items:stretch;gap:.4rem;background:rgba(255,255,255,.98);backdrop-filter:blur(24px);-webkit-backdrop-filter:blur(24px);padding:calc(var(--header-h) + 1.25rem + env(safe-area-inset-top)) 1.25rem calc(1.5rem + env(safe-area-inset-bottom));border-left:1px solid var(--border);transform:translate(100%);transition:transform .28s ease;overflow-y:auto;-webkit-overflow-scrolling:touch}.nav.open{transform:translate(0)}.nav a{display:flex;align-items:center;min-height:46px;padding:0 .9rem;border-radius:12px;font-size:1rem;font-weight:600}.nav a:active{background:var(--surface-hover)}.nav .nav-cta{justify-content:center;margin-top:.6rem}.nav .nav-internal{align-self:flex-start;min-height:0}.nav-backdrop{display:block;position:fixed;top:0;right:0;bottom:0;left:0;z-index:999;background:rgba(23,30,39,.42);opacity:0;pointer-events:none;transition:opacity .28s ease}.nav-backdrop.show{opacity:1;pointer-events:auto}.menu-toggle{display:block;position:relative;z-index:1001}html.nav-locked,html.nav-locked body{overflow:hidden}.hero{text-align:center;padding-inline:0}.hero-shell{grid-template-columns:1fr;gap:0}.hero-lead{margin-inline:auto}.hero-copy .download-group{justify-content:center}.hero-copy .more-versions{text-align:center}.hero-panel{display:none}}@media (max-width: 640px){.download-group{gap:.7rem}.download-group>.dl-btn{width:100%}.cta .dl-btn,.hero .dl-btn{font-size:.98rem}}@media (prefers-reduced-motion: reduce){html{scroll-behavior:auto}.reveal-on-scroll .fade-up{opacity:1;transform:none;transition:none}.hero:before{animation:none}.nav,.card,.dl-btn{transition:none}}