:root{--color-primary:#2563EB;--color-primary-hover:#1D4ED8;--color-primary-contrast:#FFFFFF;--color-bg:#FFFFFF;--color-surface:#F8FAFC;--color-border:#E2E8F0;--color-text:#1E293B;--color-text-secondary:#475569;--color-success:#059669;--color-warning:#D97706;--color-danger:#DC2626;--color-focus:#2563EB;--font-body:system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;--font-size-base:16px;--line-height-base:1.6;--space-1:0.25rem;--space-2:0.5rem;--space-3:0.75rem;--space-4:1rem;--space-5:1.5rem;--space-6:2rem;--space-7:3rem;--space-8:4rem;--radius-1:6px;--radius-2:12px;--radius-3:20px;--shadow-1:0 1px 3px rgba(15, 23, 42, 0.08), 0 1px 2px rgba(15, 23, 42, 0.04);--shadow-2:0 8px 24px rgba(15, 23, 42, 0.10);--container-max:1120px}*,*::before,*::after{box-sizing:border-box}html{font-size:var(--font-size-base);scroll-behavior:smooth}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{animation-duration:.001ms!important;transition-duration:.001ms!important}}body{margin:0;font-family:var(--font-body);line-height:var(--line-height-base);color:var(--color-text);background:var(--color-bg);-webkit-font-smoothing:antialiased}h1,h2,h3,h4{color:var(--color-text);line-height:1.25;margin:0 0 var(--space-4);font-weight:700}h1{font-size:clamp(2rem,4vw,3rem)}h2{font-size:clamp(1.5rem,3vw,2rem)}h3{font-size:1.25rem}p{margin:0 0 var(--space-4);color:var(--color-text-secondary)}strong{color:var(--color-text)}a{color:var(--color-primary);text-decoration:underline;text-decoration-thickness:1px;text-underline-offset:3px}a:hover{color:var(--color-primary-hover)}:focus-visible{outline:3px solid var(--color-focus);outline-offset:2px;border-radius:4px}.container{max-width:var(--container-max);margin:0 auto;padding:0 var(--space-5)}.visually-hidden{position:absolute!important;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.skip-link{position:absolute;left:-9999px;top:0;background:var(--color-primary);color:var(--color-primary-contrast);padding:var(--space-3)var(--space-4);z-index:100}.skip-link:focus{left:var(--space-4);top:var(--space-4)}.site-header{border-bottom:1px solid var(--color-border);background:var(--color-bg);position:sticky;top:0;z-index:20}.header-inner{display:flex;align-items:center;gap:var(--space-5);padding:var(--space-4)var(--space-5);flex-wrap:wrap}.brand{display:inline-flex;align-items:center;gap:var(--space-2);font-weight:700;color:var(--color-text);text-decoration:none;font-size:1.125rem}.brand-mark{color:var(--color-primary);display:inline-flex}.site-nav{margin-left:auto;display:flex;align-items:center;gap:var(--space-5)}.nav-list{list-style:none;padding:0;margin:0;display:flex;gap:var(--space-5)}.nav-list a{color:var(--color-text);text-decoration:none;font-weight:500}.nav-list a:hover{color:var(--color-primary)}.nav-toggle{margin-left:auto;display:none;background:0 0;border:1px solid var(--color-border);border-radius:var(--radius-1);padding:var(--space-2);cursor:pointer;color:var(--color-text)}@media(max-width:800px){.nav-toggle{display:inline-flex}.site-nav{display:none;flex-direction:column;align-items:stretch;width:100%;margin:0;padding:var(--space-4)0}.site-nav[data-open=true]{display:flex}.nav-list{flex-direction:column;gap:var(--space-3)}}.lang-picker select{font:inherit;padding:var(--space-2)var(--space-3);border:1px solid var(--color-border);background:var(--color-bg);color:var(--color-text);border-radius:var(--radius-1)}.btn{display:inline-flex;align-items:center;justify-content:center;gap:var(--space-2);padding:var(--space-3)var(--space-5);border-radius:var(--radius-1);font-weight:600;text-decoration:none;cursor:pointer;border:1px solid transparent;min-height:44px;transition:background-color 120ms,color 120ms,border-color 120ms}.btn-primary{background:var(--color-primary);color:var(--color-primary-contrast)}.btn-primary:hover{background:var(--color-primary-hover);color:var(--color-primary-contrast)}.btn-secondary{background:0 0;color:var(--color-primary);border-color:var(--color-primary)}.btn-secondary:hover{background:var(--color-primary);color:var(--color-primary-contrast)}.btn-lg{padding:var(--space-4)var(--space-6);font-size:1.05rem}.hero{padding:var(--space-8)0 var(--space-7);background:linear-gradient(180deg,var(--color-surface) 0%,var(--color-bg) 100%)}.hero-grid{display:grid;grid-template-columns:1.1fr 1fr;gap:var(--space-7);align-items:center}.hero h1{color:var(--color-text)}.hero .lead{font-size:1.15rem;color:var(--color-text-secondary)}.hero-actions{display:flex;flex-wrap:wrap;gap:var(--space-4);margin:var(--space-5)0 var(--space-4)}.hero-disclaimer{font-size:.95rem;padding:var(--space-3)var(--space-4);background:var(--color-surface);border-left:4px solid var(--color-warning);border-radius:var(--radius-1);color:var(--color-text)}.hero-image{width:100%;height:auto;border-radius:var(--radius-2);box-shadow:var(--shadow-2);background:var(--color-surface);aspect-ratio:16/10;display:flex;align-items:center;justify-content:center;color:var(--color-text-secondary);font-size:.95rem}@media(max-width:800px){.hero-grid{grid-template-columns:1fr}}.section{padding:var(--space-8)0}.section-alt{background:var(--color-surface)}.section-title{text-align:center;margin-bottom:var(--space-6)}.section-lead{text-align:center;max-width:640px;margin:0 auto var(--space-6)}.features{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:var(--space-5)}.feature-card{background:var(--color-bg);border:1px solid var(--color-border);border-radius:var(--radius-2);padding:var(--space-5);box-shadow:var(--shadow-1)}.feature-icon{color:var(--color-primary);display:inline-flex;padding:var(--space-2);background:rgba(37,99,235,8%);border-radius:var(--radius-1);margin-bottom:var(--space-3)}.feature-card h3{margin:0 0 var(--space-2)}.feature-card p{margin:0}@media(max-width:900px){.features{grid-template-columns:repeat(2,1fr)}}@media(max-width:600px){.features{grid-template-columns:1fr}}.steps{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:var(--space-5);counter-reset:step}.step{background:var(--color-bg);border:1px solid var(--color-border);border-radius:var(--radius-2);padding:var(--space-5);position:relative}.step::before{counter-increment:step;content:counter(step);display:inline-flex;align-items:center;justify-content:center;width:2rem;height:2rem;border-radius:999px;background:var(--color-primary);color:var(--color-primary-contrast);font-weight:700;margin-bottom:var(--space-3)}.step h3{margin:0 0 var(--space-2);font-size:1.05rem}@media(max-width:900px){.steps{grid-template-columns:repeat(2,1fr)}}@media(max-width:600px){.steps{grid-template-columns:1fr}}.screenshots{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:var(--space-5)}.screenshot{background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-2);overflow:hidden;aspect-ratio:16/10;display:flex;align-items:center;justify-content:center;color:var(--color-text-secondary);font-size:.9rem;padding:var(--space-4);text-align:center}.screenshot img{width:100%;height:auto;display:block}@media(max-width:900px){.screenshots{grid-auto-flow:column;grid-template-columns:none;grid-auto-columns:82%;overflow-x:auto;scroll-snap-type:x mandatory;padding-bottom:var(--space-3)}.screenshot{scroll-snap-align:start}}.req-list{list-style:none;padding:0;margin:0;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:var(--space-3)var(--space-5)}.req-list li{padding-left:1.25rem;position:relative;color:var(--color-text-secondary)}.req-list li::before{content:"";position:absolute;left:0;top:.65em;width:6px;height:6px;background:var(--color-primary);border-radius:999px}@media(max-width:600px){.req-list{grid-template-columns:1fr}}.smartscreen-steps{padding-left:var(--space-5)}.smartscreen-steps li{margin-bottom:var(--space-2);color:var(--color-text-secondary)}.download-card{background:var(--color-bg);border:1px solid var(--color-border);border-radius:var(--radius-2);padding:var(--space-6);text-align:center;box-shadow:var(--shadow-1)}.download-card .file-info{color:var(--color-text-secondary);font-size:.95rem;margin-top:var(--space-3)}.version-badge{display:inline-block;padding:var(--space-1)var(--space-3);background:rgba(5,150,105,.12);color:#065f46;border-radius:999px;font-weight:600;font-size:.9rem;margin-top:var(--space-3)}.donate-card{background:var(--color-bg);border:1px solid var(--color-border);border-radius:var(--radius-2);padding:var(--space-6);box-shadow:var(--shadow-1);max-width:560px;margin:0 auto}.donate-tabs{display:flex;gap:var(--space-2);margin-bottom:var(--space-4)}.donate-tab{flex:1;padding:var(--space-3);border:1px solid var(--color-border);background:var(--color-bg);color:var(--color-text);border-radius:var(--radius-1);cursor:pointer;font-weight:500;min-height:44px}.donate-tab[aria-selected=true]{background:var(--color-primary);color:var(--color-primary-contrast);border-color:var(--color-primary)}.donate-amounts{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:var(--space-2);margin-bottom:var(--space-4)}.donate-amount{padding:var(--space-3);border:1px solid var(--color-border);background:var(--color-bg);color:var(--color-text);border-radius:var(--radius-1);cursor:pointer;font-weight:600;min-height:44px}.donate-amount[aria-pressed=true]{background:var(--color-primary);color:var(--color-primary-contrast);border-color:var(--color-primary)}.donate-note{font-size:.9rem;color:var(--color-text-secondary);margin-top:var(--space-4)}@media(max-width:500px){.donate-amounts{grid-template-columns:repeat(3,1fr)}}.faq details{border:1px solid var(--color-border);border-radius:var(--radius-1);padding:var(--space-4);margin-bottom:var(--space-3);background:var(--color-bg)}.faq summary{font-weight:600;cursor:pointer;color:var(--color-text);list-style:none;display:flex;justify-content:space-between;align-items:center;gap:var(--space-3)}.faq summary::after{content:"+";font-size:1.25rem;color:var(--color-primary)}.faq details[open] summary::after{content:"−"}.faq details>*:not(summary){margin-top:var(--space-3)}.disclaimer{background:rgba(217,119,6,8%);border-top:1px solid rgba(217,119,6,.25);border-bottom:1px solid rgba(217,119,6,.25);padding:var(--space-3)0;font-size:.95rem;color:var(--color-text)}.disclaimer p{margin:0;color:var(--color-text)}.site-footer{background:var(--color-surface);border-top:1px solid var(--color-border);padding:var(--space-6)0 var(--space-5);color:var(--color-text-secondary)}.footer-grid{display:grid;grid-template-columns:1fr 1fr 1fr;gap:var(--space-5);align-items:start}.footer-brand{font-weight:700;color:var(--color-text);margin:0 0 var(--space-2)}.footer-line{margin:0;font-size:.9rem}.footer-nav{list-style:none;padding:0;margin:0;display:flex;flex-wrap:wrap;gap:var(--space-3)}.footer-nav a{color:var(--color-text);text-decoration:none}.footer-nav a:hover{color:var(--color-primary)}.footer-bottom{margin-top:var(--space-5);text-align:center}.copyright{margin:0;font-size:.85rem}@media(max-width:700px){.footer-grid{grid-template-columns:1fr}}.page{padding:var(--space-7)0}