:root{--bg-primary:#fff;--bg-secondary:#f4f4f5;--bg-surface:#fff;--bg-elevated:#fff;--border-subtle:#00000014;--border-medium:#00000026;--text-primary:#09090b;--text-secondary:#52525b;--text-tertiary:#71717a;--accent-blue:#2563eb;--accent-orange:#ea580c;--font-sans:"Outfit", "Noto Sans TC", system-ui, -apple-system, sans-serif;--radius-sm:8px;--radius-md:16px;--radius-lg:24px;--radius-phone:8px;--shadow-phone:0 20px 40px #00000026, 0 0 0 1px #0000000d;--glow-blue:0 0 80px 24px #2563eb14;--container-max:1140px}*,:before,:after{box-sizing:border-box;-webkit-tap-highlight-color:transparent;margin:0;padding:0}html{scroll-behavior:smooth;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}body{font-family:var(--font-sans);background:var(--bg-primary);color:var(--text-primary);line-height:1.6;overflow-x:hidden}img{max-width:100%;height:auto;display:block}a{color:inherit;text-decoration:none}.container{max-width:var(--container-max);margin:0 auto;padding:0 24px}.nav{z-index:100;border-bottom:1px solid #0000;justify-content:space-between;align-items:center;height:64px;padding:18px 32px;transition:background-color .4s,border-color .4s;display:flex;position:fixed;top:0;left:0;right:0}.nav.scrolled{-webkit-backdrop-filter:blur(24px)saturate(180%);border-bottom-color:var(--border-subtle);background:#ffffffe0}.nav-brand{letter-spacing:-.02em;cursor:pointer;-webkit-backdrop-filter:blur(16px)saturate(180%);background:#fff9;border:none;border-radius:999px;align-items:center;gap:10px;padding:6px 20px 6px 8px;font-size:1.125rem;font-weight:600;transition:background .3s;display:flex}.nav.scrolled .nav-brand{-webkit-backdrop-filter:none;background:0 0}.nav-icon{border-radius:50%;width:28px;height:28px}.lang-toggle{border:1px solid var(--border-subtle);color:var(--text-secondary);font-family:var(--font-sans);cursor:pointer;background:#0000000a;border-radius:999px;justify-content:center;align-items:center;min-height:44px;padding:10px 20px;font-size:.8125rem;font-weight:500;transition:background .2s,color .2s,border-color .2s;display:inline-flex}.lang-toggle:hover{color:var(--text-primary);border-color:var(--border-medium);background:#00000014}.hero{align-items:center;min-height:100dvh;padding:96px 0 100px;display:flex;position:relative;overflow:hidden}.hero-bg-glow{background:var(--glow-blue);pointer-events:none;z-index:0;width:500px;height:500px;position:absolute;top:50%;right:8%;transform:translateY(-50%)}.hero-grid{z-index:1;grid-template-columns:1fr 1fr;align-items:center;gap:60px;display:grid;position:relative}.hero-content{flex-direction:column;justify-content:center;max-width:500px;min-height:360px;display:flex}.hero-title{letter-spacing:-.03em;background:linear-gradient(135deg, var(--text-primary) 0%, var(--text-secondary) 100%);-webkit-text-fill-color:transparent;-webkit-background-clip:text;background-clip:text;margin-bottom:16px;font-size:clamp(2.75rem,5.5vw,4rem);font-weight:700;line-height:1.1}.hero-subtitle{color:var(--accent-blue);margin-bottom:12px;font-size:clamp(1.0625rem,1.8vw,1.25rem);font-weight:500}.hero-desc{color:var(--text-secondary);margin-bottom:32px;font-size:1rem;line-height:1.7}.hero-actions{flex-direction:column;gap:10px;display:flex}.cta-btn{background:linear-gradient(135deg, var(--accent-blue), #3a7bd5);color:#fff;font-family:var(--font-sans);cursor:pointer;border:none;border-radius:999px;align-items:center;gap:10px;width:fit-content;padding:14px 32px;font-size:1rem;font-weight:600;transition:transform .2s cubic-bezier(.16,1,.3,1),box-shadow .2s;display:inline-flex}.cta-btn:hover{transform:translateY(-2px);box-shadow:0 12px 40px #4a9eff40}.cta-btn:active{transform:translateY(0)scale(.98)}.cta-icon{flex-shrink:0;width:20px;height:20px}.cta-sub{color:var(--text-tertiary);font-size:.8125rem}.download-stats{color:var(--text-tertiary);opacity:0;flex-direction:column;gap:4px;margin-top:8px;font-size:.85rem;transition:opacity .5s;display:flex}.stat-row{align-items:center;gap:6px;display:flex}.hero-visual{justify-content:center;display:flex}.phone-mockup{pointer-events:none;flex-shrink:0;width:240px;position:relative;container-type:inline-size}.phone-mockup:before{content:"";pointer-events:none;z-index:0;background:radial-gradient(#2563eb0d,#0000 65%);width:140%;height:140%;position:absolute;top:50%;left:50%;transform:translate(-50%,-50%)}.phone-screen{z-index:1;box-shadow:var(--shadow-phone);background:#000;border:2.5cqw solid #18181b;border-radius:3.5cqw;transition:transform .4s cubic-bezier(.16,1,.3,1),box-shadow .4s;position:relative;overflow:hidden}.phone-screen:after{content:"";z-index:10;background:#18181b;border-radius:50%;width:4.2cqw;height:4.2cqw;position:absolute;top:3.5cqw;left:50%;transform:translate(-50%);box-shadow:inset 0 0 2px #ffffff26}.phone-mockup:hover .phone-screen{transform:translateY(-4px);box-shadow:0 0 0 1px #ffffff1f,0 30px 80px #000000b3,0 0 48px #4a9eff1f}.phone-screen img{width:100%;height:auto;display:block}.phone-mockup--hero{width:300px}.phone-mockup--spotlight{width:280px}.features{background:var(--bg-secondary);padding:100px 0 120px}.section-title{text-align:center;letter-spacing:-.02em;margin-bottom:72px;font-size:clamp(2rem,4vw,2.75rem);font-weight:700}.feature-grid{grid-template-columns:repeat(2,1fr);gap:24px;display:grid}.feature-card{background:var(--bg-surface);border:1px solid var(--border-subtle);border-radius:var(--radius-lg);text-align:center;padding:32px 24px;transition:border-color .3s,transform .3s;overflow:hidden}.feature-card:hover{border-color:#4a9eff33;transform:translateY(-2px)}.feature-card-phone{justify-content:center;margin-bottom:28px;display:flex}.feature-card .phone-mockup{width:180px}.feature-card h3{letter-spacing:-.01em;margin-bottom:8px;font-size:1.125rem;font-weight:600}.feature-card p{color:var(--text-secondary);font-size:.9375rem;line-height:1.6}.privacy{background:var(--bg-primary);padding:100px 0}.privacy-grid{grid-template-columns:repeat(2,1fr);gap:20px;display:grid}.privacy-card{background:var(--bg-surface);border:1px solid var(--border-subtle);border-radius:var(--radius-md);padding:32px;transition:border-color .3s,transform .3s}.privacy-card:hover{border-color:#4a9eff2e;transform:translateY(-2px)}.privacy-icon{width:36px;height:36px;color:var(--accent-blue);margin-bottom:18px}.privacy-icon svg{width:100%;height:100%}.privacy-card h3{margin-bottom:8px;font-size:1.0625rem;font-weight:600}.privacy-card p{color:var(--text-secondary);font-size:.9375rem;line-height:1.6}.disclaimer{background:var(--bg-secondary);padding:72px 0}.disclaimer-box{text-align:center;border-radius:var(--radius-md);background:#ff9f0a08;border:1px solid #ff9f0a2e;max-width:600px;margin:0 auto;padding:36px}.disclaimer-icon{width:28px;height:28px;color:var(--accent-orange);margin-bottom:14px}.disclaimer-box h2{margin-bottom:10px;font-size:1.125rem;font-weight:600}.disclaimer-box p{color:var(--text-secondary);font-size:.9375rem;line-height:1.6}.bottom-cta-section{background:var(--bg-primary);text-align:center;padding:120px 0 100px}.bottom-cta-content{max-width:560px;margin:0 auto}.bottom-cta-title{letter-spacing:-.02em;margin-bottom:14px;font-size:clamp(1.75rem,3.5vw,2.5rem);font-weight:700}.bottom-cta-desc{color:var(--text-secondary);margin-bottom:36px;font-size:1.0625rem}.cta-btn--large{min-height:52px;margin:0 auto;padding:16px 36px;font-size:1.0625rem}.footer{text-align:center;background:var(--bg-primary);border-top:1px solid var(--border-subtle);padding:48px 0 36px}.footer-link{color:var(--text-secondary);align-items:center;gap:8px;margin-bottom:14px;font-size:.9375rem;transition:color .2s;display:inline-flex}.footer-link:hover{color:var(--text-primary)}.footer-gh-icon{width:18px;height:18px}.footer-license{color:var(--text-tertiary);margin-bottom:4px;font-size:.8125rem}.footer-contributor{color:var(--text-tertiary);font-size:.8125rem}@media (prefers-reduced-motion:reduce){*,:before,:after{scroll-behavior:auto!important;transition-duration:.01ms!important;animation-duration:.01ms!important;animation-iteration-count:1!important}}@media (width<=960px){.hero{padding:100px 0 80px}.hero-grid{text-align:center;grid-template-columns:1fr;gap:48px}.hero-content{max-width:100%;min-height:auto}.hero-actions,.download-stats{align-items:center}.hero-visual{order:-1}.phone-mockup--hero{width:240px}.feature-grid{grid-template-columns:1fr;gap:20px}.section-title{margin-bottom:48px}.features{padding:80px 0 100px}.privacy{padding:80px 0}.privacy-grid{grid-template-columns:1fr}.bottom-cta-section{padding:80px 0}}@media (width<=600px){.nav{padding:14px 20px}.hero{padding-top:88px}.hero-title{font-size:2.25rem}.hero-bg-glow{width:300px;height:300px;top:30%;right:-20%}.phone-mockup--hero{width:200px}.feature-card{padding:24px 20px}.cta-btn{padding:12px 28px;font-size:.9375rem}.privacy-card{padding:24px}.disclaimer-box{padding:28px}.bottom-cta-section{padding:64px 0}}